H5606

A 1/32" ply side mount for the throttle servo was abandoned in favor of a tray as the front fuse side separation points don't allow flat areas for bonding - fabricated from 1/16th ply with 1/8" lite-ply doublers for more screw bite - predicted nose-heaviness allows aft-most positioning of throttle servo -

Located tank feed line hole in fuse bottom sheeting and vent hole in firewall; fabricated a custom foam cradle to position and immobilize tank; added a tape pull tab to facilitate tank removal - clearance for tank vent blister was added to top of hole on former, F-2 -

I've never used exhaust throttle on Cox engines before - installation presented numerous challenges to get it working satisfactorily - ended up using a braided cable (not pictured) with .047" Z-bent wire soldered to end attaching to throttle snap-ring.

Final coat of epoxy resin to tank compartment and sealed up fwd fuse with top sheeting, opened up hole for choke tube, and sanded excess sheeting flush -


Unused servo mount -

Substitute servo tray -

Throttle servo in mount with tri-stock gussets -

Intended throttle servo location at aft end of fwd fuse -

Fuel tank cradle fashioned from Ethafoam on bandsaw -

Tank in cradle -

Tank in position; note vent line poking through firewall -

Fuel tank access pull-tab -

WOT?

Throttle cut? (I hope) -

Shimming the throttle sleeve to eliminate slop w/ 4 layers of copper tape -

X-Acto knife used to trim out center of shims -

Throttle linkage installation -

Front end before rounding off all corners -

Throttle servo tentative position -

Notch filed in former for tank blister clearance -