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Whats New > Kits > SIG Kits
Wonderful quality Sig Kits here at Radical RC. These are KITS, not ARF's. At completion you geat a feeling of accomplishment and pride of wormanship that beginner RC'rs will just never understand. ;-)

What are you building this winter?

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Sig T-Clips EP

"T-CLIPS" is no ordinary clipped wing Taylorcraft. Originally a stock 1939 Taylorcraft, this is the only clipped wing T'craft in the world currently flying airshows with an original size engine. Airshow pilot Erik Edgren refers to this as "Twistin It Old School". SIG is proud to team up with Erik and offer a new R/C model of his one-of-a-kind airplane.

Designed for electric power, the new SIG T-CLIPS EP is a pure aerobatic delight. It's not meant to be an exact scale model, but more of an everyday no-frills flying field favorite.

Voted by pilots as the "Best New R/C Airplane At SEFF 2013".

Download: Instruction PDF

Specifications:

Wingspan 60 in 1524 mm
Wing Area 630 sq in / 40.6 sq dm
Weight 4.5 - 5lb / 2041 - 2267g
Wing Loading 16.5 - 18.3 oz/sq.ft. 50 - 56 g/sq. dm
Radio Required 4-Channel
Recommended Power: 500-800 watts

Special notes about electric from Dave: I've been very excited about this fine model hitting the streets. It's an excellent high wing aerobatic model. Scale looks with a wide speed envelope. I have done an extensive work up of power systems I could recommend below. You don't get this kind of analysis from anybody else, even SIG. Think of lower capacities as the cell count increases, for 6S, I'm thinking about high quality 2200's, think about larger packs up to 4200 for 3S, maybe a 3300-3700 for 4S, a 2200-3300 for 5S. Some alteration of battery tray may be required and is not investigated as of this moment.

Setup and Performance Chart
Motor# CellsPropAmpsWatts InRPMThrust oz.Pitch Speed MPHClimb FPMEst. Top Speed
Himax 3528-1000311x844.55018,6906656146856
Himax 3528-1000312x854.86128,1207760180358
Himax 3528-1000410x644.166212,1308067187561
Himax 3528-1000411x5.55379511,5609458221261
Himax 3528-0800313x841.14626,7506850146453
Himax 3528-0800411x7385709,6907662173059
Himax 3528-0800412x851.37708,8809366237364
Himax 3528-0800511x5.545.184611,99010160257064
Himax 3528-0800611.5.558.6131913,73013669388973
Himax 5018-530612x842.29509,84011673325171
Himax 5018-530613x6.545.31,0199,69012958341966
Himax 5018-530613x852.111729,36013969399573
Himax 5018-530614x757.512949,09015359423768

Estimates based on manufacturers provided constants using E-Calc. High Quality 3200mah used as trial cell in calculations. 2200-4200mah packs presumed to be used. Presumed model weight of 80oz. Actual performance may vary depending on components used, accuracy of data as provided by manufacturer, quality of battery, ESC, and many other factors.

SKU Number: SIGRC87EPARF
Price: $169.99 
Quantity:   



Sig Kadet LT-25

The Sig Kadet LT-40 has become the R/C trainer of choice at many club fields. Not long after it's introduction, we started getting requests for a smaller version of the same airplane. So here it is - a compact version of the LT-40 - the new Sig Kadet LT-25. When price shopping this kit, be sure you understand our super low flat rate shipping means total cost to your door is probably the lowest on the planet.

"The R/C Trainer That's All Laser Cut", As you would expect, the new LT-25 inherits all the same gentle flying characteristics of the other legendary Sig Kadets. It has the same light wing loading, which allows it to fly slow enough to give the student pilot time to think and react. It has the same "hands off" stability on all axis. If the student pilot gets disorientated, simply let go of the sticks and the LT-25 will recover and return to level flight within seconds.

Specifications:

Wingspan 63 in 1600 mm
Wing Area 724 sq in / 46.71 sq dm
Weight 4 - 4 1/4 lb 1814 - 1928g
Wing Loading 12 - 13 oz/sq.ft. 3662 - 3967 g/sq-m
Radio Required 4-Channel
Recommended Engines .25 - .32 cubic in (4.1 - 5.2 cubic cm) 2-Stroke
.20 - .26 cubic in (3.3 - 4.3 cubic cm) 4-stroke

Special notes about electric from Dave: This model makes an excellent electric conversion and is perhaps the most popular one of all time. Super light weight, large as or even larger than most 40 size trainers. The only lighter weight 40 size trainer on the market is the Radical RC Intern 66.

Setup and Performance Chart
Motor# CellsPropAmpsWatts InRPMThrust oz.Pitch Speed MPHClimb FPMEst. Top Speed
Himax 3516-840311x826.22957,500574197046
Himax 3516-1130310x736.64129,9206650129451
Himax 3522-990311x7374168,7705854140551
Himax 3522-990410x535.753612,3105864168354
Himax 3528-1000312x644.55018,6904964169852
Himax 3528-800510x531.458912,9006171186557
Himax 3528-1000411x5.551.477111,6606185245360
Himax 5018-530512x830.55728,5606576205059
Himax 5018-530513x838.57168,2106293261462

Estimates based on manufacturers provided constants using E-Calc. High Quality 2100-3000mah used as trial cell in calculations. Presumed model weight of 76oz. @3 cells (added oz for higher cell counts). Actual performance may vary depending on components used, accuracy of data as provided by manufacturer, quality of battery, ESC, and many other factors.

SKU Number: SIGRC74
Price: $117.00 
Quantity:   



Sig Kadet LT-40

Like all Sig Kadets, the LT-40 behaves perfectly in flight, with true "hands off" stability on all axis. If the student pilot gets disoriented, simply let go of the control sticks and the LT-40 will recover itself and return to level flight within seconds.

Because the Kadet LT-40 is bigger than the average .40 size trainer, it has a much lighter wing loading, which lets it fly slower! Slower speed gives the student pilot more time to think and react to what the model is doing, thus making it easier to learn to fly R/C. Every major part of this kit has been pre-shaped, sawn, die-cut, laser-cut, routed, or whatever it takes to make it ready-to-install right out of the box.

Setups below would be my first picks depending on your purpose for the model. If your trying to learn or train a beginner, or just want a mild model with enough power to get out of trouble, pick setup around 1000 to 1400 foot per minute climb rate (fpm). An expert can do quite nice aerobatics on 1000 fpm, 1400 fpm and above is enough for first season pilots. Setups 2000 fpm and higher is agressive power.

Specifications:

Wingspan 770 in 1778 mm
Wing Area 900 sq in / 58 sq dm
Weight 5.5 - 6 lb 2494 - 2721g
Wing Loading 14 - 15.5 oz/sq.ft. 4272 - 4730 g/sq-m
Radio Required 4-Channel
Recommended Engines .30 - .40 cubic in (4.9 - 6.6 cubic cm) 2-Stroke
.40 - .50 cubic in (6.6 - 8.2 cubic cm) 4-stroke

Special notes about electric from Dave: This model makes an excellent electric conversion and is perhaps the most popular one of all time. Super light weight, large as or even larger than many 60 size trainers. For UAS purposes, the under wing compartment is 3" wide, 5 5/8" deep and 12 3/4" long.

Setup and Performance Chart
Motor# CellsPropAmpsWatts InRPMThrust oz.Pitch Speed MPHClimb FPMEst. Top Speed
Himax 3528-800312x836.14067,020575791444
Himax 3528-0800411x5.534.85229,8805951113147
Himax 3522-990411x740.86129,5207663131951
Himax 3528-800410x640.175212,3208670154155
Himax 3528-1000410x542.263312,2607458127450
Himax 3528-1000510x450.594715,0909757175855
Himax 5018-530413x1033.94976,5807261123650
Himax 5018-530512x831.95988,4908363145553
Himax 5018-530612x842.29509,84011573220161
Himax 5018-530613x852.111729,36013669273465

Estimates based on manufacturers provided constants using E-Calc. High Quality 2100-3000mah used as trial cell in calculations. Presumed model weight of 95oz. @3 cells (added oz for higher cell counts). Actual performance may vary depending on components used, accuracy of data as provided by manufacturer, quality of battery, ESC, and many other factors.
Due back in stock by the end of May!

SKU Number: SIGRC67
Price: $138.00 
Quantity:   



Sig Kadet Senior

First attempts at R/C flying should be with an inherently stable model that flies slow enough to give the student pilot time to think and react. The Kadet Senior is the result of designer Claude McCullough's 50+years in the model airplane hobby. Everything about the Kadet Senior has been designed to make it the easiest to fly trainer in the world.

The"Hands Off" Trainer; High-wing configuration, large tail surfaces, and generous dihedral for true "hands off" stability. The Kadet Senior flies so slow and gentle that just about anyone can handle it on their very first try! If the student pilot gets confused, simply let go of the control sticks and the Kadet Senior will recover itself and return back to level flight. Flat-bottom airfoil, light weight construction, and a super light wing loading allow the Kadet Senior to cruise around at low speeds. All-balsa design with a strength-to-weight advantage that ARF trainers can't approach

Specifications:
Wingspan: 78 in 1981 mm
Wing Area: 1150 sq in / 74.2 sq dm
Weight: 6 lbs / 2720 g
Length: 62 in / 1575 mm
Radio Req.: 3 Channels, 3 Servos
Engine Req. .29-.40 cu-in / (4.8 - 6.5 cu-cm) 2-Stroke Glow / .35-.45 cu-in (5.7 - 7.4 cu-cm) 4-Stroke Glow

SKU Number: SIGRC58
Price: $96.00 
Quantity:   



Sig 4 Star 60

Just like the Four-Star 40 and the Four-Star 120, the Four-Star 60 has a near perfect blend of simple construction, classic looks, and outstanding flight performance.

State-of-the-art CAD drawn plans and laser-cut parts assure you of precise parts fit and perfect alignment. The lite-ply fuselage and simple wing design get the Four-Star 60 out to the flying field in short order.

With a wing loading like a trainer, the Four-Star 60 is easy to fly, yet will perform all the free-style aerobatics your thumbs can keep up with. Day in and day out, the Four-Star 60 will be the sport model you'll want to take to the flying field every time.

Kit Features: Lite-Ply Fuselage Construction, Pre-Cut Sheet Balsa Tail Surfaces, Durable Aluminum Main Landing Gear, Formed Tailwheel Wire, Molded Clear Plastic Canopy, Full Size Plans, Fast-Building Wing with Spruce Spars, Photo-Illustrated Instruction Book, Engine Mounts, Sig Easy Hinges, Pushrods, Complete Hardware Pack & Large Decal Sheet.

Wingspan: 71 in 1803 mm
Wing Area: 920 sq in 60.3 sq dm
Flying Weight: 7-8lb 3175-3630g
Length: 57 in 1448mm
Radio Required: 4 Channel with 5 Servos
Recommended Engines: .60-.75 cubic in (10.0 - 12.3 cubic cm) 2-Stroke, .65-.90 cubic in (10.7 - 14.8 cubic cm) 4-Stroke

Special notes about electric from Dave: This model would make an excellent electric conversion. I've seen many of the 4 star series done and they fly well. Plenty of wing area and a light weight design. Below are my suggestions for a range of practical power systems.

Setup and Performance Chart
60
Motor# CellsPropAmpsWatts InRPMThrust oz.Pitch Speed MPHClimb FPMEst. Top Speed
Himax 3528-800412x646.113999,2005752139954
Himax 5018-530514-747.48897,7906052198958
Himax 5018-530613x855.612519,1809670269069
Himax 5018-530416x1058.18725,5507453194058
Himax 5030-390814x752.115639,55013163330571
Himax 5018-530613x855.612519,1809670269069
Himax 6320-2501016x844.516697,920149369371
Estimates based on manufacturers provided constants using E-Calc. High Quality 2100-3000mah used as trial cell in calculations. Presumed model weight of 76oz. @3 cells (added oz for higher cell counts). Actual performance may vary depending on components used, accuracy of data as provided by manufacturer, quality of battery, ESC, and many other factors.

SKU Number: SIGRC73
Price: $152.00 
Quantity:   



Sig 4 Star 40

When developing the Four-Star 40, SIG had two main design goals: First of course was impeccable flight performance, including the ability to perform any aerobatic whoop-dee-doo you can throw at it. Second, it had to be ultra-simple to build without looking like a "box with wing".

Kit Features: Lite-Ply Fuselage Construction, Pre-Cut Sheet Balsa Tail Surfaces, Durable Aluminum Main Landing Gear, Formed Tailwheel Wire, Molded Clear Plastic Canopy, Full Size Plans, Fast-Building Wing with Spruce Spars, Photo-Illustrated Instruction Book, Engine Mounts, Sig Easy Hinges, Pushrods, Complete Hardware Pack & Large Decal Sheet.

Wingspan: 59 3/4 in 1518 mm
Wing Area: 604 sq in 39 sq dm
Flying Weight: 4 3/4 lb 2150 g
Length: 47 in 1194 mm
Radio Required: 4 Channel, 4 Servos
Recommended Engines: .30-.40 cubic in (4.9 - 6.5 cubic cm) 2-Stroke, .40-.50 cubic in (6.5 - 8.2 cubic cm) 4-Stroke

Special notes about electric from Dave: This model makes an excellent electric conversion. I've seen many of them done and they fly well. Plenty of wing area and a light weight design. Below are my suggestions for a range of practical power systems.

Setup and Performance Chart
Motor# CellsPropAmpsWatts InRPMThrust oz.Pitch Speed MPHClimb FPMEst. Top Speed
Himax 3522-0990312x641.74698,4706248137753
Himax 3528-800312x1037.44216,9506654126056
Himax 3528-800411x736.65499,7706568167461
Himax 3528-1000312x644.55018,6904964149054
Himax 3528-1000411x5.551.477111,6606185217764
Himax 3528-1000312x644.55018,6904964149054
Himax 5018-530512x830.55728,5606576183963
Himax 5018-530612x840.59119,93075104276673
Estimates based on manufacturers provided constants using E-Calc. High Quality 2100-3000mah used as trial cell in calculations. Presumed model weight of 76oz. @3 cells (added oz for higher cell counts). Actual performance may vary depending on components used, accuracy of data as provided by manufacturer, quality of battery, ESC, and many other factors.

SKU Number: SIGRC44
Price: $109.00 
Quantity:   



Sig 4 Star 20 EP

Building on the 20-year reputation of the original Four-Star line of great sport airplanes, we bring you this highly requested version designed for electric power.

Like it's older siblings it retains the easy and relaxed flying characteristics of the Four-Stars. Open the throttle and increase the control throws and it will do about any wild maneuver your thumbs can dream up. Add to this the portability of a smaller size and the quietness and convenience of electric power and you have another winner for sport flying. While designed for electric power it is configured to easily convert to glow engine power in the .15 to .25-engine range so you have the best of both worlds.

Specifications:
Wingspan 48 in 1219 mm
Wing Area 430 sq. in. 27.7 sq. dm.
Length 38 in 965 mm
Weight with 250-watt motor & 3s1p 2200 mAh lipo 2-1/2 lbs 1130g
Wing Loading 13.4 oz./ft² 40.8 g/sq. dm.
Radio Required 4-Channel with 4 mini servos
Power Required 250 to 350 watt electric motors
or .15 to .25 glow engines
Setup and Performance Chart With HiMaxx Motors, Castle ESC and Radical RC Battery
Motor# CellsPropAmpsWattsRPMThrust oz.Pitch Speed MPHFPM Climb @ DegreeMax Climb Angle Est Top Speed
2816-122039x523.826810,95040501630@405852
3510-110039x724.52769,88039641710@375656
3510-154038x635.339713,71048752314@499062
3510-110048x625.237813,73048752324@499062
3516-1130310x737.94269,82057632793@659063
3522-700411x5.522.73419.0156452238@559053
3522-990311x738.44328,69061562954@819061
Estimates based on manufacturers provided constants using E-Calc. MFG model specifications used in calculations. High Quality 2100mah used as trial cell in calculations. Actual performance may vary depending on components used, accuracy of data as provided by manufacturer, quality of ESC, weather and many other variables. Package weight 4.4lb
Now in stock!


SKU Number: SIGRC106
Price: $86.00 
Quantity:   



SIG Kougar Mark II

If you're looking for an R/C model that is easy to build and exciting to fly, the KOUGAR is for you! This sleek jet-style airplane has a fully symmetrical wing section for smooth pattern-like aerobatics. Ample wing area and a thick airfoil provide outstanding slow speed stability. Built-in wing "washout" eliminates tip stalling, enabling the Kougar Mark II to be slowed down to a walk for realistic nose-high landings. The Kougar Mark II is highly recommended as an introduction to low-wing flying and learning aerobatics. Fully Aerobatic Smooth Control Response Don't let the Kougar's racy lines worry you. Construction of this sport model is simple and straight forward. The load-carrying and equipment-carrying portion of the fuselage is basic balsa box structure. Once that is built, you add a molded plastic fuselage top, a molded clear plastic canopy, and a molded plastic cowling, to give the Kougar its modern jet-style shaped.

Specifications: Wingspan: 50 in/1270 mm
Wing Area: 540 sq in/34.8 sq dm
Weight: 5 1/2 - 6 lb/2495 - 2720g
Wing Loading: 23-25 oz/sq ft/7018 - 7629 g/sq m
Radio Required: 4-Channel

Recommended:
Engines: .40 - .50 cubic in/6.6 - 8.2 cubic cm
2-Stroke

Kit Features

  • Pre-Cut Foam Wing Cores
  • 1/16 " Balsa Wing Sheeting
  • Basic Balsa Box Fuselage Structure
  • Molded ABS Plastic Fuselage Top
  • Molded Jet-Style Clear Canopy
  • Injection-Molded ABS Plastic Cowling
  • Sheet Balsa Tail Surfaces
  • Formed Landing Gear Wires
  • Steerable Nose Gear
  • SIG Easy Hinges
  • Engine Mounts
  • Complete Hardware Pack
  • Photo-Illustrated Instruction Book


SKU Number: SIGRC35
Price: $93.00 
Quantity:   



SIG Kobra

Are you having trouble shoe-horning a big model into a small car? Does the high cost of feeding a fuel guzzling .60 break the modeling budget? Well cheer up! Here's the answer to these and other big airplane problems. The little Kobra provides "hot dog" performance in a compact, easy to transport size. All of the great flying characteristics of our popular Kougar and King Kobra have been reduced into this junior-size bundle of excitement. The same sleek jet-style look, the same wall-to-wall aerobatic capabilities, the same built-in wing washout for slow speed stability, the same easy-to-build balsa fuselage with the unique formed plastic top - only in a smaller package! Plenty of room inside for standard size radios.

Kit features, built up wing, ABS cowl, simple box fuse structure enhanced with jet like canopy/turtle deck molding. Contains a generous hardware pack. Comes with full size plans. Fuse builds right on wood sheets, die cut formers and ribs. Alternate stab designs for both tail configurations.

Specifications:
Wingspan 45 in 1143 mm
Wing Area 390 sq in 25 sq.dm
Length 39-1/4 in 870 mm
Radio Required 4-Channel
Glow Engines: .20-.40 (3.1 - 6 sq cm) 2-Stroke
Electric System: 300-600 watts (RRC Reccomendation)

Notes from Dave: If you want a classic conversion to electric, here are my thoughts on this kit:

Setup and Performance Chart
Motor# CellsPropAmpsWatts InRPMThrust oz.Pitch Speed MPHClimb FPMEst. Top Speed
Himax HC3528-1000310x737.94269,8205165215167
Himax HC3522-99049x73552512,3605880251475
Himax HC3528-1000410x748.473211,8307776361581
Estimates based on manufacturers provided constants using E-Calc. High Quality 2200mah used as trial cell in calculations. Presumed model weight of 54oz. Actual performance may vary depending on components used, accuracy of data as provided by manufacturer, quality of battery, ESC, and many other factors.


SKU Number: SIGRC53
Price: $73.00 
Quantity:   



Sig Somethin' Extra Kit

The new Sig Somethin' Extra has it all - good looks, incredible performance, Sig quality balsa and ply construction and every part in the kit is laser-cut!

This kit can literally be built as fast as the modeler can apply CA glue and accelerator. Fantastic flight performance using either 2-stroke or 4-stroke engines. The aerobatic capabilities of this model are virtually unlimited due to its thick airfoil section and very light wing loading. A perfect club contest airplane.

Kit Features: Balsa and Ply Construction, Pre-Cut Sheet Balsa Tail Surfaces, Durable Aluminum Main Landing Gear, Formed Tailwheel Wire, Molded Clear Plastic Canopy, Full Size Plans, Fast-Building 2 Piece Wing For Easy Transportation, Full Size Plans, Engine Mounts, Sig Easy Hinges, Pushrods, Complete Hardware Pack & Large Decal Sheet.

Wingspan: 51.5 in 1308 mm
Wing Area: 614 sq in 39.6 sq dm
Flying Weight: 4.25-4.75 lb 1928-2150 g
Length: 48.25in 1226 mm
Radio Required: 4 Channel, 4 Servos
Recommended Engines: .40-.46 cubic in (6.6 - 7.5 cubic cm) 2-Stroke, .56-.65 cubic in (9.2 - 10.7 cubic cm) 4-Stroke

Special notes about electric from Dave: This model makes an excellent electric conversion. My first large electric was one of these on 20 1750FAUP Cells. Yikes, I'd love to do another one with modern packs! Here is how I'd do it. Yes, this is same chart as the 4 Star 40, similar weight and wing area. An under recognized yet excellent electric conversion model. Good weight to wng area. A little troublesome to get large NiMH packs into due to the wing tube. However with Lipo's it's super easy to fit the pack. Below are my suggestions for a range of practical power systems.

Setup and Performance Chart
Motor# CellsPropAmpsWatts InRPMThrust oz.Pitch Speed MPHClimb FPMEst. Top Speed
Himax 3522-0990312x641.74698,4706248137753
Himax 3528-800312x1037.44216,9506654126056
Himax 3528-800411x736.65499,7706568167461
Himax 3528-1000312x644.55018,6904964149054
Himax 3528-1000411x5.551.477111,6606185217764
Himax 3528-1000312x644.55018,6904964149054
Himax 5018-530512x830.55728,5606576183963
Himax 5018-530612x840.59119,93075104276673
Estimates based on manufacturers provided constants using E-Calc. High Quality 2100-3000mah used as trial cell in calculations. Presumed model weight of 76oz. @3 cells (added oz for higher cell counts). Actual performance may vary depending on components, accuracy of data provided by manufacturer, quality of battery, ESC, and many other factors.

SKU Number: SIGRC76
Price: $119.00 
Quantity:   



Sig Kavalier

The heart of this beautiful airplane is it's superior wing design! The light, strong, built-up balsa structure incorporates built-in wingtip washout for superior stability and control. Even expert pattern fliers are impressed with the Kavalier's smooth, responsive flying ability. Make perfectly coordinated, in-the-groove turns. Fly through any aerobatic maneuver with rock solid precision. Flare out for slow, main gear only landings with no tendency to stall or snap roll. Highly recommended as a student pilot's second model! Balsa fuse, tail and wing with built in washout. Build it bolt on or rubber band mount wing with semi-symmetrical airfoil. Steerable nose gear, pre-bent aluminum landing gear and rugged plastic cowling and canopy included as are glow engine mount, full size plans and photo illustrated instruction book. Specifications:

Wingspan 55 1/2 in 1410 mm
Wing Area 575 sq. in. 37.1 sq dm
Weight 5 1/2 lb 2495 g
Wing Loading 22 oz/sq ft 6713 g/sq m
Radio Required 4-Channel
Recommended
Engines .29 - .40 cu. in. (4.8 - 6.6 ccm) 2-Stroke

Notes from Dave: This is absolutely my favorite glow sport ship of all time. It's a classic kit. There was just nothing more exciting on trainer night than to have a graduated student come up with one of these for his 2nd or 3rd aircraft and ask me to test fly it. I dare say, I'd put a whole tank through the model and say, yes, it's still my all time favorite! The model is very pattern like for it's size, super smooth and yet retains all the personality of weekend sport ship. Friendly yet aerobatic and even aggressive if you set the throws for more spirited performance. They land like a dream, are utterly trustworth in any situation. You'll love it as I do.

Power Packages for setups in performance chart available. Includes Castle ESC, Himax motor and APC or Zoar Prop & Lipo Battery.

Electric Setup and Performance Chart
Power Pack #Motor# CellsPropAmpsWatts InRPMThrust oz.Pitch Speed MPHClimb FPMEst. Top Speed
Pack #1 Himax 3528-1000411x746.26879,4907261185464
Pack #2Himax 3528-800511x637.669910,4307957197164
Pack #3Himax 3528-1000610x655.1123013,65010275283677
Pack #4Himax 5018-530811x736.7109211,66011375312779
Pack #5Himax 3516-1350310x641.24609,5505054113055

Estimates based on manufacturers provided constants using E-Calc. High Quality 2200-3300mah used as trial cell in calculations. Presumed model weight of 78oz. @3 cells (added oz for higher cell counts). Actual performance may vary depending on components used, accuracy of data as provided by manufacturer, quality of battery, ESC, and many other factors.

This kit is only shipped by Parcel Post to locations outside of zone 4 from our shop regardless of shipping method choosen.

SKU Number: SIGRC39
Price: $89.00 
Optional Power Pack 
Plug & Play Soldering 
Battery Capacity 
Quantity:   



Sig 1/3 Scale SPACEWALKER

Although it looks like it's straight out of the 1930's, don't bother looking up this one in your aviation history books. The Spacewalker was designed by Jesse Anglin of Hendersonville, North Carolina and first flew in 1986! Despite the fact it is a relatively new design, the Spacewalker manages to capture all the spirit of Aviation's Golden Age.

This 1/3-scale model of Jesse's Spacewalker retains all of the charm of his beautiful homebuilt. Plans for the full-size aircraft were scaled down for the ultimate in scale accuracy. Construction is easy with pre-formed fiberglass parts and traditional balsa and plywood construction.

Specifications:
Span: 104"
Area: 1800 sq. in.
Length: 72"
Weight: Aprox 20lbs
Radio: 4 channel
Electric Power Suggestion: 2400-4000 watts designed around 16-22" props
Glow: 1.5-2.4 2 strokes, 1.8-3.0 4 strokes, Gas, 50-80cc.

Ok if your serious about a monster electric, this might be the model. Lets entertain some ideas below.

Setup and Performance Chart
Motor# CellsPropAmpsWatts InRPMThrust oz.Pitch Speed MPHClimb FPMEst. Top Speed
Himax 6332-230824x1293.628084,75025854193761
Himax 6332-2301022x1277.223165,12023058168461

Estimates based on manufacturers provided constants using E-Calc. High Quality 3000-6000mah used as trial cell in calculations. Presumed model weight of 20lbs. Actual performance may vary depending on components used, accuracy of data as provided by manufacturer, quality of battery, ESC, and many other factors.

This item only ships by parcel post or FedEx Ground regardless of shipping method choosen. If you want Priority Mail expect shipping to run you an extra $30 to $60 or so. Note, one supplier lists this kit for less, however once you pay the shipping it will cost you LOTS MORE. You can get this delivered by parcel post to your door for $302 (including our flat rate $3 shipping) anywhere in the USA.
Temporarily out of stock


SKU Number: SIGRC61
Price: $299.00 
Quantity:   



Sig Riser 2 meter

This radio-control 2-meter sailplane was designed with the novice and sport flyer in mind. Features strong, easy-to-build balsa construction. Room inside for a standard size radio equipment.

Excellent flight characteristics! The RISER may be launched with a standard high start, a winch, or with the optional Sig Power Pod. Includes full pushrod and control horn hardware. Start now, you'll be thermalling with the hawks before you know it!

Specifications:
Wingspan 78 in 1981 mm
Wing Area 620 sq in / 40 sq dm
Weight 24 - 28 oz / 680 - 794g
Wing Loading 6 - 7 oz/sq ft / 1831 - 2136 g/sq meter
Length: 41 1/2 in 1054 mm
Radio Required: 2-channel (elevator, rudder) 3-channel (elevator, rudder, spoilers)

SKU Number: SIGRC52
Price: $49.99 
Quantity:   



Sig Riser 100"

The Riser 100 is an excellent choice for the newcomer who wants to get started in soaring, or for the already experienced "glider guider" who wants a relaxing, easy-to-build "floater".

The Riser 100's modified Eppler 205 airfoil and 1000 sq. in. of wing area gives you the ability to fly in nearly any weather. The Riser 100 provides great "hang-time" in light lift conditions, yet has respectable penetration when the wind comes up. Rugged construction allows more time at the flying field and less time in the shop. Launch the Riser 100 with a standard high-start or winch, or toss it off the slope. Enjoy the challenge of silent flight!

Specifications:
Wingspan: 100 in 2540 mm
Wing Area: 1000 sq in / 64.5 sq dm
Weight: 45 - 49 oz / 1276 - 1389g
Wing Loading: 6 - 7 oz/sq ft / 1831 - 2136g/sq m
Length: 51 1/2 in / 1308 mm
Radio Required: 2-channel (elevator-rudder) / 3-channel (elevator-rudder-spoilers)

SKU Number: SIGRC62
Price: $83.00 
Quantity:   



SIG Hummer

Great 1/2 class model for sport flying or club racing. Excellent model for electric conversion with generous nose length making it easy to balance correctly. All wood built up construction complete with prebent aluminum gear, canopy, light weight wheels, EZ Hinges, nylon elevator pushrod, complete hardware pack, photo instruction set and full size plans.

Calculated electric power setups provided below. These systems available on request.

Wingspan: 34 in 864 mm
Wing Area: 212.5 sq. in / 13.8 sq dm
Weight: 20-26oz / 567-737 g
Wing Loading: 13.5-17.6 oz sq.ft / 4120-5371 g sq m
Length: 30 3/4 in 781 mm
Radio Req: 2-Channel (ailerons, elevator)
Engine Req: .049-.051ci (.80-.84 ccm) 2-Stroke

Setup and Performance Chart
Motor# CellsPropAmpsWatts InRPMThrust oz.Pitch Speed MPHClimb FPMEst. Top Speed
Himax 2808-116037x513.520113,3102663210462
Himax 2816-122038x618.720910,4502859222862
Himax 2815-200036x420.322718,0102568208463
GWS OutRun 002 2205/15T36x415.116916,0502061142756
Estimates based on manufacturers provided constants using E-Calc. High Quality 1300mah used as trial cell in calculations. Presumed model weight of 24oz. Actual performance may vary depending on components used, accuracy of data as provided by manufacturer, quality of battery, ESC, and many other factors.


SKU Number: SIGRC50
Price: $51.00 
Quantity:   



Sig Wonder

The Wonder is best described as a very fast, go-where-you-point-it, turn-it-quick-or-it'll-be-gone kind of plane designed for hot-thumbed R/C pilots. With an .09 or a .10 size engine, the Wonder is actually a very nimble, aerobatic, smooth flying sport plane, but with a snarling .15 or .19 up front it's a hand- launched hot rod! Landings are no sweat thanks to the thick symmetrical airfoil and the light wing loading.

Specifications:
Wingspan 37 1/2 sq.in. (952 mm)
Wing Area 338 sq.in. (25 sq dm)
Weight: 26 - 38 oz 737 - (1077 g)
Wing Loading: 11.1 - 16.2 oz/sq ft (423 - 4943 g/sq m)
Radio Required: 2-Channel (ail, ele) or 3-Channel (ail, ele, thr)
Recommended Glow Engines .09 - .19 cubic inch (.58 - 1.23 cc) 2-Stroke

Special notes about electric from Dave: This model makes an excellent electric "muscle" model. Often overlooked since SIG does not offer an e-version or any electric power system setup info. It's easily adapted. Below are my suggestions for a range of practical to extreeme power systems.

Setup and Performance Chart
Motor# CellsPropAmpsWatts InRPMThrust oz.Pitch Speed MPHClimb FPMEst. Top Speed
Himax 2816-122038x619.121511,5002965160260
Himax 3510-154038x634.1384138304279285672
Himax 3516-113049x742.964413,3106488467086
Himax 2825-230037x638.543315,6503886253871
Himax 3514-290037x664.972416,5204494324173
Himax 3514-290057x484.583523.3107688556587
Estimates based on manufacturers provided constants using E-Calc. High Quality 2100mah used as trial cell in calculations. Presumed model weight of 26oz. Actual performance may vary depending on components used, accuracy of data as provided by manufacturer, quality of battery, ESC, and many other factors.


SKU Number: SIGRC66
Price: $63.00 
Quantity:   



SIG King Kobra

If a fast roll rate, sizzling vertical climb, and dazzling good looks turn you on, take a close look at the King Kobra's the largest version of the Kougar, Kobra series.
The foam core wing and unique fuselage construction get you in the air fast with a model that looks as good as it flies! For general sport flying, the King Kobra flys great with a sport .60 R/C engine and the standard fixed landing gear. However, for those who want to soup this model up to the max, the building instructions include tips on tuned pipes and retracts. A fully symmetrical wing and airfoiled stabilizer make the King Kobra fly super smooth. It can make an average Sunday flier look like an expert!

Specifications:
Wingspan 58 in (1473mm)
Wing Area 700sq.in. (45 sq.dm)
Wing Loading 24oz.sq.ft. (7629g sq.m)
Weight: 7.5lbs (3401g) Radio Required 4-Channel
Glow Engines: .60 2stroke, 70 4stroke 2-Stroke
Electric System: 1000-2000 watts (RRC Reccomendation)

Notes from Dave: If you want a classic conversion to electric, here are my thoughts on this kit:

Setup and Performance Chart
Estimates based on manufacturers provided constants using E-Calc. High Quality 2200mah used as trial cell in calculations. Presumed model weight of 54oz. Actual performance may vary depending on components used, accuracy of data as provided by manufacturer, quality of battery, ESC, and many other factors.


Motor# CellsPropAmpsWatts InRPMThrust oz.Pitch Speed MPHClimb FPM @ DegreesEst. Top Speed
Himax HC5018-530611x1038.987510,01093952089 @ 3378
Himax HC5016-530811x746.7140113,230146852581 @ 5689
Himax HC5030-390812x1246.713899,7901311093354 @ 4892
Himax HC5030-3901012x1056.8213011,9401911114975 @ 77105
Himax HC5030-3901012x1264.2240811.6001301865600 @ 90109

SKU Number: SIGRC54
Price: $132.00 
Quantity:   



Sig Anniversary Piper J3 Cub 1/5 Scale Kit

Celebrating Sig's Golden Anniversary, they are ecstatic to introduce the latest addition to their line of high quality Build It Yourself airplane kits: the 1/5 Scale J-3 Piper Cub..

They've put everything they've learned about model airplanes into this special kit: scale details, Sig laser cut parts, full size plans, a comprehensive instruction booklet.
All the features you've come to expect from Sig. Then they added a little something special. The new 1/5 Scale J-3 Piper Cub is so real, you may have a hard time separating it from the 1930's full size airplane. All of the details are included - a working side door and window, dummy engine cowls with "eyebrows", scale-like wire landing gear, a fully detailed instrument panel... even the realistic "bird's eye-view" window on top of the cabin. Add in a full decal sheet including Cub lightning bolts and you have a Cub standing far above the rest.

Specifications:
Wingspan 84.5 in 2146 mm
Wing Area 947 sq in 61.1 sq dm
Weight 7 lb 3175 g
Length 55.25 in 1403 mm
Radio Required 4-Channel, 5 Servos

Recommended Engines
.40 - .46 cu in (6.5 - 7.5 cu cm) 2-Stroke
.45 - .65 cu in (7.5 - 10.7 cu cm) 4-stroke

Kit Features
90% laser cut parts for accuracy and ease of assembly
Windshield and engine cylinders
Quality SIG AAA balsa and plywood
A super tough scale-like tail wheel assembly
Full size plans
Molded plastic parts for windows
Fiberglass cowling
A full compliment of quality SIG hardware
Fully illustrated manual to guide you from box to completion

Additional items required:
4 channel radio system with 5 standard servos
.40-.46 2 stroke or .45-.65 4 stroke glow engine
Propeller to fit engine
1 piece fuel tubing - SIGSH286
1 piece 12 ounce fuel tank - SUL429
2 pieces 3-3/8 inch main wheels - DUB338TC
1 piece 1 inch tail wheel - DUB100TW
4 rolls covering material
Optional DuBro Fuel Valve - DUB334

Tools Required:
Thin CA Adhesive
Medium CA Adhesive
Modeling knife with #11 blades
Drill with bits
Dremel Moto Tool with bits
Sanding Block
Sandpaper - Assorted Grits
T Pins


SKU Number: SIGRC82
Price: $231.00 
Quantity:   



Sig Skyray 35

The Skyray 35 is an easy-to-build profile model suitable for a wide range of C/L flying fun. This excellent all purpose design is suitable for stunt, combat, sport racing, balloon bust, or general Sunday flying.

When equipped with a .19 engine, it makes a good first C/L trainer. Bolt on a Fox .35 Stunt engine, and the Skyray 35 will fly the complete AMA stunt pattern. Install a high-performance combat engine, and you'll have a real "Hot Rod" on your hands.

Died-in-the-wool C/L fliers will appreciate the Skyray 35's speedy assembly and super tough wing design - which features spruce spars and die-cut Lite-Ply wing ribs. This is one C/L profile stunter with a real difference!

Notes from Dave: I've flown electric control line a number of times and it's a real blast! Any kit can be converted with a little effort.

Suggested Fox 35 Emulator E-Motor Setup: Himax 3516-1130, Thunderbird 36 ESC, E-Flite Control Line Motor Timer, 3S 1500 Kypom Pack and 2 each 10-6 APC-E Props. Setup delivers 10,180 RPM (Fox 35 Stunt 10,200rpm), 58 mph pitch speed, 47 ounces thrust, 374 watts power @ 33.2 amps.

Suggested .19 Glow Emulator E-Motor Setup: Same as above except with 9-5 prop, 11,040 RPM, 52mph pitch speed, 34 ounces statics thrust, 246 watts power @ 21.9 amps.

Builder must refashion nose to mount e-motor and should be capable of doing this before placing order. We do not have special instruction sheet for this modification.

SKU Number: SIGCL25
Price: $51.99 
E-Power System 
Plug N Play Soldering 
Quantity:   



Sig Twister

Here's a profile model that flies like a full-bodied competition stunter. The Twister makes an ideal stunt trainer for up and coming fliers, or an excellent practice airplane for the competition flier.

Notes from Dave: I''ve flown electric control line a number of times and it''s a real blast! Any kit can be converted with a little effort.

Suggested Fox 35 Emulator E-Motor Setup: Himax 3516-1130, Thunderbird 36 ESC, E-Flite Control Line Motor Timer, 3S 1500 Kypom Pack and 2 each 10-6 APC-E Props. Setup delivers 10,180 RPM (Fox 35 Stunt 10,200rpm), 58 mph pitch speed, 47 ounces thrust, 374 watts power @ 33.2 amps.

Suggested .40 Glow Emulator E-Motor Setup: 3522-0990, Radical RC 40+ ESC, E-Flite Control Line Motor Timer, 4S 2200 Pack, 2 each 10 x 6 props, 11,980 RPM, 68mph pitch speed, 68 ounces statics thrust, 603 watts power @ 40.2 amps.

Builder must refashion nose to mount e-motor and should be capable of doing this before placing order. We do not have special instruction sheet for this modification.

SKU Number: SIGCL22
Price: $48.99 
E-Power System 
Plug N Play Soldering 
Quantity:   



NASA wants to go back to the moon. Radical RC's Wicked Wing beat them to it! Check out our original designs! Radical RC Verti-Go 125, Verti-Go 3D, E-Hornet, Mini Stick, Micro Stick, Micro Bipe, Micro Low Stick, Quick Wing 12mm, Quick Wing 20mm, Quick Wing Twin 20mm Double Trouble, Das Mini Low Stick, Das Mini Bipe, Mini Hunter, Mini Intern Trainer, Stick 600,
and now available...Stick 400!
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