.
Those who look closely may notice that we happen to have 100 series units in the wing because they were on hand at the
time we were building. For all practical purposes they are identical in mounting and usage to the 200 series. You must,
however, have a 200 series nose unit (No. 205) with single arm steering that comes in the No. 201 or No. 202 outfit, for best
results in the nose.
Though the pictures are only of Spring Air equipment, they still should be useful in providing guidance for mounting other
types of retracts.
Full size drawings on the plan show the amount of space available for the nose units. Make certain that both the mounting
and nose gear steering methods of the units you select will adapt to the King Kobra before buying them. There should be no
space problem in the wing for most any kind of retract units.
The kit does not include any parts or materials required for retract installation.
139.
The wing mounting plates are cut from 3/16" plywood. 4-40 blind nuts are epoxied on the backside.
NOTE: The wing core has a slot cut out for the fixed gear grooved mounting block. In most retract installations this slot will
have to be enlarged further during installation. If you find that your gear does not require all or part of this slot, glue scrap
foam in it.
140.
A small sanding tool is handy for making openings in the core for the retracts. This one is made from scrap plywood.
141.
Drill 3/16" holes through the mounting plate and out the other side of the core. Epoxy the plate to the foam. Cut dowels of
the proper length to go completely through the wing to the opposite surface. Epoxy them in place.
142.
Excavate the foam as required to pass the retract unit and wheel.
143.
Line the sides of the wheel wells with balsa wood. Wet it to make it easier to bend in place.
144.
After sheeting the foam cores, cut out the openings for the wheel and retract unit.
145.
Cut the nose unit mounting place from 3/32" ply (not lite ply) and glue it to the bottom of the tank floor.
SUGGESTION: As supplied, the nose gear has the coil located farther from the unit than is required for this installation.
Before beginning, shorten the top of the gear so that the coil will be as close to the unit as possible without interfering with
the retracting motion. Careful! Don't take off too much, check as you go. (It's easy to work the units by hand once you get
the knack of catching the sliding brass bar with a thumbnail on each side and pushing away from the cylinder.) Don't bend
the wheel axle into the gear until you are certain of your airplane ground angle. Set it up on the bench to be certain.
