An easy-to-handle, quick-building, great-looking design that's quite aerobatic. The Sport Air 40 stands out as one of the more visually appealing aircraft in the 40-size market, thanks to its clean lines and striking resemblance to several full-scale light aircraft.
This excellent all-around sportster will attract many favorable comments at the flying field, not only because of its good looks, but also because of how great it flies.
As with every Old School Model Works kit, our Sport Air 40 is a build-it-yourself airframe, designed and laser-cut from high quality balsa wood and light ply.
Included are new, simplified building features as well as laser-cut precision and self-aligning parts to make this all-time favorite even better. For example, our exclusive Web-Lock construction makes building the wing panels a snap. Rather than the sheer webs being an afterthought, they are utilized during the build to properly space, position, and lock in each rib.
We have completely updated the airframe with laser-cut and self-aligning parts. The fuselage is built around a self-aligning, light-weight box for added strength. Surrounding this is the outer balsa skin, which is strong, light-weight, and twist-resistant even when performing high-stress maneuvers. The balsa/ply airframe makes the Sport Air 40 uncomplicated, lightweight, and easy-to-build.
Power can come from glow or electric powerplants. We've designed the fuselage with a magnetic top hatch, so you have quick access to either your fuel tank or batteries. Also the tray can be removed to give access for mounting an ESC or flight pack battery.
Another thing you'll notice is that the Sport Air 40 has a bit more ground clearance than a typical 40 sized design. It's longer landing gear give you the ability to easily fly from grass fields.
When it comes to aerobatics, the Sport Air 40 doesn't disappoint. While it may not be as precise as a dedicated pattern bird, it is incredibly forgiving and can easily perform a wide range of maneuvers. Even with the controls increased for aerobatics, landings are one of the Sport Air .40's strong suits, due to its excellent low-speed stability. Our Old School Model Work's Sport Air 40 is a Vintage R/C Society legal design for enjoying vintage fly-ins and contests.
Specifications:
- Wingspan: 58 inches
- Wing Area: 638 sq. inches
- Length (airframe only): 43.5 inches
- Weight: 4.5-5.5 pounds RTF
- Radio: 4 channel
- 4 40-70 in./oz. servos (Standard servos - similar to HS-311)
- 1 additional servo for throttle, if using a glow engine
Power:
- Glow (.35-.46 engine, 6 ounce tank, fuel tubing)
- Electric (equivalent brushless motor - 600+ watt, 80+ amp ESC, 4S LiPo)
Features of the Sport Air 40 Premium USA Hardware Included in each Old School Model Works kit is a premium hardware package. We only source our hardware from brand-name, USA manufacturers to guarantee the best quality.
Interlocking Construction
There's nothing else like it. Our interlocking construction allows you to assemble the entire airframe with a minimum amount of fuss.
Front hatch
Securely held in place with magnets, the Sport Air 40's hatch gives you easy access to batteries or fuel.
Glow or Electric power
Power the Sport Air 40 with either a glow or electric powerplant.
VRCS legal kit
Our Sport Air 40 is a Vintage R/C Society qualifying design making it eligible for vintage/retro events.
Design your color scheme
Download this sheet to design your Sport Air 40's color scheme.
Additional items needed to complete the Sport Air 40 kit:
- Propeller
- Engine/Motor mount & mounting hardware
- "Y" servo harness (for ailerons)
- Pushrods (two 6" for ailerons, two 26" for elevator & rudder, one 12" for nose gear, one 12" for throttle if glow powered)
- Clevises for the pushrods (10 if electric, 12 if glow).
- Wheels: 2.5"
- Covering (typically 2-3 rolls)
- Optional 2.25" or 2.5" spinner
 "Old School Model Works Sport Air 40 Kit")
