Carf-Models Ultra Lightning, Инструкция по эксплуатации

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Building Instructions
Landing Gear
The Lightning, and the complete landing
gear set and it’s mounting system, is
designed to handle grass runways.
The C-ARF landing gear set is specially
manufactured for the Lightning, integrat-
ing the very high quality engineering of
Behotec (Germany) for the retract units
and oleo legs, with the superb reliability
of the well-known Intairco (Australia)
wheels and brakes, and high quality
accessories and connectors. It is incredi-
bly strong and rated for models of 20+
kgs. All spare parts are available.
The main LG mounts are assembled in the wing moulds from a composite laminated carbon
sheet and aircraft-grade plywood. They are fully integrated into the wing and spar structure,
locked together with tabs and slots - bringing you the highest strength with the lowest weight.
The nosegear mounting system is also very strong, using 3 laminations of aircraft-grade 3mm
plywood, and provides easy access for retract maintenance. If you decide use a different
brand of landing gear you should use a ‘trailing-link’ type of
noseleg for best ground handling.
Main Gear
Temporarily assemble the wheels and oleo legs onto your
retracts, and trial fit to determine the exact mounting position
of the units, using the countersunk M4 bolts and T-nuts sup-
plied. If using our C-ARF retracts, oleos and large 115mm Ø
wheels the outer edge of the main retracts should be no
more than 5 - 6mm (1/4”) inside the plywood rib outboard of
the retract mounting bay. To get perfect alignment, centre
the wheel in the wheel well, and drill just one of the 4mm
holes through the retract unit and carbon/plywood mounting
plate. Insert a bolt, and then drill the other 3 holes, one at a
time, inserting a bolt after each hole is drilled.
Note : Don’t mount the retracts too far towards the wing root,
because you might not have enough clearance between the
wheel and the door later.
Remove the retract and open the holes up to 5.5mm diam-
eter for the M4 T-nuts. Using a spare M4 bolt with a large
washer under the head, pull the spikes of all the T-nuts
firmly into the plywood. Refit the retracts to check align-
ment, and then finally secure the T-nuts with a little 30
minute epoxy.
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(above) C-ARF retract units are
installed 5 - 6mm from the ply-
wood rib outside the LG mount.
(below) Set a little ‘Toe-in’ on
both main wheels, using a 90°
square aligned on the trailing
edge of the wings.
(above) C-ARF complete Landing Gear set.