User Manual

27
DeNight Special 50 ARF Assembly Manual
􀀀 Step 8
Place the fuselage left-hand side down in a suitable
stand. Set the engine on the mount and position it so
the face of the drive washer is 4 5/8 inches from the
forward face of the rewall.
􀀀 Step 9
Insert a 5/32-inch drill bit in the engine lug holes and
twist it by hand to mark the engine mount locations.
You may nd it helpful to clamp the engine to the
mounts during this step so it cannot move.
􀀀 Step 10
Remove the engine. Use a 9/64-inch bit in a drill motor
to drill the holes in the engine mount. Make sure you
keep the drill perpendicular to the mount while drilling
the holes.
􀀀 Step 11
Place a #6 steel washer on each of the 6-32 x 1-inch
Allen head machine screws.
􀀀 Step 12
Place the engine on the mounts and insert the screws
into the engine lugs and mount. Thread an 8-32 nylon
lock nut onto each of the screws and use a 7/64-
inch hex wrench and 5/16-inch wrench to secure the
engine to the mount.
􀀀 Step 13
Insert the nylon pushrod housing into the hole drilled
in step 2. Slide it into the fuselage making sure it
passes through the hole in the plywood standoff.
Leave 5/8 inch of the housing exposed in front of the
rewall. Use canopy glue to glue the housing to the
rewall and standoff.