4. A- 26 Invader | 400-Size Attack Bomber
Designed as a low-level attack bomber, the Douglas A- 26 Invader first flew in 1942. Powered by two Pratt & Whitney R-2800 radials, it carried a variety of
weapons from .50-caliber machine guns and rockets to recoilless cannon. ;e Invader soldiered on through the Korean conflict, operating mostly in night-attack roles, but by the early 1960s, most Invaders had been retired or converted into fire bombers. When the Vietnam War broke out, the A- 26 came out of
retirement converted into counter-Invaders, designated B-26Ks, and used mostly for counterinsurgency missions.
We have always been impressed with the simplicity of the Invader’s design. It has fine proportions for an RC model, especially an electric-powered one.
;e long, narrow, and e;cient wing has a tapered plan form, and the fuselage has a simple box cross-section, making it quick and easy to build. Foam blocks
are used to give the model shape.
MODEL: A- 26 Invader
TYPE: Attack bomber
WINGSPAN: 42 in.
WING AREA: 200 sq. in.
WING LOADING: 18. 5 oz./sq. ft.
LENGTH: 30.75 in.
WEIGHT: 25. 5 oz.
RADIO REQ’D: 3-channel (throttle,
PLAN NO.: X1208A (1 sheet)
MOTORS: Two Speed 500 7.2V
SPEED CONTROL: Jeti 35 brushed
w/ BEC (wired parallel)
PROPELLERS: APC 5x5 electric
Though brushless motor setups
are popular, we like to use the
cheap power available from the
ubiquitous Speed 400 brushed
As with all of Mark’s plans, they are a single page and include all the
templates and former details needed to build the model.
;e A- 26 uses Hitec HS- 55 servos, and there’s
more than enough room for the rest of the airborne
electronics and battery pack.
Once you fly this
twin attack bomber,
you might never fly
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