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Further investigation revealed that the teleflex cable
running from his joy stick to the aileron mixing bell crank has
broken off at the end of the threads, at the point of attachment.
Another pilot on the field is also inspecting his aircraft and
finds that his rudder has been damaged. The fabric has a puncture
mark, which matches up exactly with his elevator horn.
After
watching their aircraft, on a very windy day the pilots found that
both the rudder, and ailerons moved around, very rapidly and
forcefully when the wind gusted, or changed direction. This lead
to the rudder puncturing the elevator horn and the breaking of the
teleflex cable.
Suggestions:
A simple remedy that has been
found to work effectively is to immobilize the rudder, elevator
and ailerons. This can be done very easily on the rudder and
elevator by the building a set of stops.
Tools required
Drill
Drill bit
Wrenches
Parts required
4 pieces of 1 inch tubing,
plastic, wood, whatever.
2 pieces of foam insulation, used on copper water pipe
Bolts, nuts and washers
2 pieces of 1/2 inch plywood 6" x 12"
Procedure
Drill a vertical, about 1/2 an inch from the end of the tubes, if
necessary debur the holes. Place the foam insulation over the
tubes. Install a bolt, into one end of one tube, then through the
same end of the other tube. Install a nut onto to bolt.
Slide the tubes over the
horizontal stabilizer and elevator. Install the other bolt into
the other end of the top tube, and then the bottom tube, install
the nut. Snug up both nuts.
Build another set of stops
and use them to go over the vertical fin and rudder. For ailerons
stops, take 2 pieces of 1/2 inch plywood measuring 6 inches by 12
inches. Use glue to cover them with a non abrasive carpet
material. Drill 2 holes in the centre of the wood, about 4 inches
from either end.
Install the one half of the
stop, so that it overlaps both the top of wing and the aileron
the, make sure the carpet side is facing the wing and aileron
surface. Install the other half of the stop with the carpet side
toward the underside of the wing, underneath the top stop. Install
two bolts through, the predrilled holes.
Make sure bolts go
through gap seal area, between aileron and wing. Install nuts and
snug the nuts up. There, about 30 minutes worth of work and 10
bucks worth of material, might just save your life. |
