Scratch-built experimental RC
electric canard pusher
Frank Horine ( firstname.lastname@example.org) sent this photo f his experimental canard model aircraft. The canard is a one-off, intuitive, extemporaneous
design with no plans, drawings, templates, or photos used as
construction guides. Frank wrote, “Since canard-type aircraft
are unique, I decided to use unique construction methods in
keeping with the spirit of the project.”
The airframe’s integrity comes from carbon rods and
tubes lashed together with electronic lacing cord tied with
surgeon’s knots. The frame is covered with rip-stop nylon
fabric, forming a semi-monocoque structure sharing flight
loads between the carbon frame, the cord ties, and the fabric
The few aluminum parts on the aircraft are 6061-T6 and
7075-T3 alloy machined into component mount plates and
carbon-rod coupling sleeves.
The 65-inch wingspan aircraft has 850 square inches and
weighs 28 ounces. It is powered with an AXI 2208-34 motor
spinning a 10 x 6 pusher propeller fed with a 2S 2,600 mAh
Thunder Power LiPo battery through an 8-amp JETI ESC.
Flight times are approximately 40 minutes with 25-watt
power consumption at level flight. Ground control is by
steerable, tricycle 4-inch-diameter modified GWS wheels
allowing operations from a grass field. Radio control is
furnished by a Spektrum DX8 and AR6200 with a modified
The model shares the same characteristics of full-scale
pusher canards: oversized control surfaces because of the lack
of propeller blast and a flat, stable, predictable stall recovery.
Frank notes that it is “a real hoot to fly.” Sharing in the fun is
the mouse pilot seated on the canard elevator support rails. “I
understand his crazy grin when I fly this model!” Frank noted.
“The open construction of the model appears fragile, but
the aircraft has easily survived for hundreds of flights and
a few crashes,” Frank mentioned. “I will confess to all the
crashes being pilot error on my part!”
Frank’s photo was taken on the runway of the Montoya
Flying Field in Alameda, New Mexico. He used a Canon
PowerShot SX20 IS with a focal length of 7mm, f-stop of
f/3.2 at 1/200 second, and an ISO of 80.
175 Model Aviation OC TOBER 2013 www.ModelAviation.com