Your Sig Kadet LT-40 Source! 
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Sig Kadet LT-40 - Product Image
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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.

 


SKU Number: SIGRC67
Price: $155.95 
Quantity:  

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Questions on this Sig Kadet LT 40? Email us at RadicalRC.com@gmail.com