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Radio-Control Airplanes

Tubular Page 1 | Construction


Stabilizer bones: Drela HT 14 low-drag airfoil

Channel for V wire at TE root; 4-ply balsa

Carbon tow stiffens stabs' TE

Stabs mounted with aramid cloth

V wire

Detail

Stabs, bottom view

Cloth wraps around LE

V wire peeks out behind boom

Carbon on LE

Bevel on rudder's LE, carbon rod on TE

Detail of too-big control horn

Carbon cloth stiffener

Redesigned low-profile control horn

Upright

Detail

Dab of epoxy along ribs holds skin

First strip of shiny film

Shiny film on rudders, before and after

West System drizzled into lower boom

It stuck poorly to Teflon tubing, though

Testing the CG

Former 3 wrapped with carbon tow

Jig for gluing former 1 between booms

Former 1 aramid-lashed & glued

Former 2 lashed & glued; diagram

Jig for lashing/gluing landing gear

Side view

Top view

Front strut lashing

Front strut JB-welded

Skids and struts all lashed and glued

Front view

Top view

Freed from the Lego mold!

Skid detail

Wing saddles, test-fit and for real

Jig for aft wing pylon

Motor mount and tailskid

Again

Inner face (4 screwholes)

Motor onto boom (tape keeps out dust)

Bending front wing pylon

Saddle lashed to front pylon(s)

Side view

Top view

Front pylon lashed to booms

Top view

Detail

Front view with saddle

Side

Top

Test-fit wing, side view

Top view

Test-fit battery

Battery tray;
balsa servo mount

CS-5.4's lashed together

Press-fit mount over servo flanges

Albert the Great watching epoxy cure

Carbon/balsa antenna mount; ESC glued

Antenna pylon dentistry

Joint between wing halves...

...reinforced with aramid cloth

Impact shield, only 3 grams

Coroplast/packingtape mold; carbon tape

Layup: West System & hair dryer

Foam mount glued onto motor

Blue-foam servo fairing, Sharpie'd black

Aramid "guy wires" stiffen tailboom

Sheeting the wing incidence wedges

Lower sheet is grooved for saddle
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