the Pete is slightly larger than the T-28. The spinner was made from soft balsa turned on a drill. It is small, so only a few minutes with a sanding bar and a file to cut
he propeller slots did the trick. The spinner was adhered with silicone to a 160mm x 70mm propeller attached to a UMX P-51 brushed motor and gearbox. After it cured, this assembly was secured with silicone to a scrap balsa plate in the nose by aligning the spinner to the front cowl former.
Covering and Paint
The Pete was covered with lightweight
Japanese tissue from Easy Built Models.
I applied Elmer’s glue stick on the
framework and then positioned lightly
dampened tissue over each section. A little
heat from a trim iron activated the glue while
drying and tightening the tissue.
After all of the tissue was on, it was
sealed with two coats of diluted water-based
polyurethane. This was covered with three
coats of thinned, gloss-white latex paint
applied with an airbrush.
The prototype’s markings are homemade
decals printed from a custom file. My favorite
is the illusion of the exposed engine—the
cowl on the full-scale Pete was cut away to
aid in cooling.
The decal was made from a high-resolution
photo provided by Kevin Dahlhausen. Kevin’s
walkaround photos of the original Pete and
the graphics file can be found in the build
thread on RCGroups referenced in the
“Sources” list. Vinyl graphics are also available
from Callie Graphics.
The center ribs are reinforced with scrap balsa to accept the Pete’s spindly
landing gear. Bracing wires running out to the wings provide needed support.
The Pete is covered in tissue, sealed with water-based polyurethane, and
is ready for the paint shop.
Although the Pete weighs nearly twice
what the UMX T-28 did, it has no problem
getting off the ground and zooming around
the field using the 1S brushed setup. At
70 grams ready to fly, takeoffs require a
moderate rollout, and landings are a breeze.
The Pete’s internals and unique landing gear arrangement can be seen to good
But there isn’t a tremendous amount of
power for the aerobatics.
As previously mentioned, a variety of 2S
power options have become available since I
built the prototype. One of the more notable
Manzano Laser Works
Easy Built Models
is the E-flite 180BL 2,500 Kv motor found
in the UMX Beast and other 2S micros. I’ve
added the outlines for a simple motor mount
to the drawing for builders interested in using
35 Model Aviation