|Dec 31, 2014, 09:23 PM|
I came across the Rockwell XFV-12a and was inspired to build a jetset44 style model.
Wingspan: 26.5 inches
Length: 36 inches
Wing area: 82.6 square inches
Canard area: 32.1 square inches
Preview of plans is attached below. (This is output from Sketchup.)
Construction is pretty straightforward:
* The fuselage is a box construction, with a few formers, and with doublers along the seams for later rounding.
* The forward fuse tapers to the centerline and turns into a former that runs to the rear and holds the stick mount for the pusher motor.
* The plans show a flat wing but following mopar_man, I laid the 5mm spar on top of the 6mm wing and bent a 3mm skin over top in a faux airfoil.
* There's one servo for the canard -- probably set up as an elevator. There are separate servos for the wing's control surfaces -- probably will be set up as ailerons. All control surfaces are actuated with torque rods.
* The nose cone and canopy are carved from pink foam.
* A short section of 1mm carbon rod is inserted in the tip of the nose cone and in the tips of the winglets.
* The bottom is reinforced with Silkspan from brodak.com . (I'm trying this instead of brown masking paper in the hopes it will be easier to cover in paint later.)
* The bottom half of the winglets are attached with magnets in the hopes that they'll be attached during flight but pop off on landing.
I marked the CoG per http://adamone.rchomepage.com/cg_canard.htm
The model is (almost) ready for a first flight, largely pending good weather.
As this is my first canard model, do let me know if you have any advice for the first flight and/or if you have any questions about the build.
|Jan 01, 2015, 02:57 AM|
Joined Mar 2009
Nice build. For your maiden, I would definitely have dual rates set up. Also, you might want to consider skids/land gear to protect the canard. It may take away from the looks, but it'll help ward off damage. Consider this your prototype/test mule. lol Search RC for thr "Star Cobra". Only other plane I know that uses the canard for it's elevator. Good Luck. Very nice Plane.
|Jan 23, 2015, 10:27 AM|
It is an odd one isn't it. Thanks for the link.
I've been waiting for better weather before its first flight. (And I'm still mulling over the suggestion by ksqm re: skids or other to protect the canard.)
|Jan 23, 2015, 07:02 PM|
FYI The forward fuselage and cockpit was a A-4 skyhawk and the nose gear retracted forward. Lots of off the shelf parts was used to control costs. Only time it was in the air was suspended from a gantry for tests. Hope it flies good.
Will be watching how this project goes.
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