Advertisement
After starting your engine the first time, check for vibrations through the whole throttle range. The
engine should run smoothly with no unusual vibration. If you think that there are any excessive
vibrations at any engine rpm's, DON'T FLY at this time and check your engine, spinner and
propeller for proper balancing. Please follow the engine manufacturer's run-in recommendations
and make sure that the engine is ran-in properly before you attempt the first flight.
The light- weight sandwich composite parts don't like too much vibration and they can suffer
damage. The low mass of all the parts results in a low physical inertia, so that any excess
vibrations can affect the servos and linkages. Check that the M3 bolts retaining the horizontal
stablisers on to the aluminium tube are installed and tight, and that the hinge wires for the rudder,
elevators and ailerons cannot come out. Make sure that your main and stab tubes are not damaged.
If you have the wing fold version, make sure that the wings lock smoothly in the down position
and that the wings are attached with the 4 bolts securely. Test cycle the folding sequence several
times when the engine is running and make sure that the down lock is always safe.
A special note if the Moki 215 or Moki 250 radial is used: Please make sure that no electric wire
can touch any hot component on the engine. All wires should be protected by additional spiral
tubing and should be fixed with cable ties on to the firewall. Any rubbing of wires needs to be
prevented by using rubber grommets where they are fed through the firerwall. Do not assume that
a radial engine runs without vibration. A radial engine with a single sided counter balance on the
crank shaft does have very noticable vibrations, which seem "softer" than the vibrations of a
single or twin cylinder gas engine, but they are just as abrasive to any rubbing components.
Check the retract system for reliable function. You should be able to cycle the gear at least 3
times, after the gear was retracted for 10 minutes. Please take the time to confirm that the air
system is not leaking. Depending on the many different possibilities for air leaks, the air system
might seem perfectly sealed when the gear is down, but when the gear is up, a leak might show.
Make sure that all screws and bolts on the landing gear have been tightened and checked. We rely
on the QC-procedures of our subcontractor "Sierra Giant Scale" and do NOT check the landing
gear equipment before it is sent to you. Please for your own interest check every bolt, and if
necessary, secure it with Locktite or similar. Check the safe function of the gear before you install
it permanently in the wing.
On the hydraulic system for the wing fold, please ONLY use T-Fittings which grab the tube from
the outside, such as Festo "Push-In" Tees. An oil spill is not only very time consuming to clean up,
it might ultimately be a high risk for the wing fold system to fail in flight.
If you carefully checked all the points above and followed our advice exactly, you will have a safe
and successful first flight - and many hours of pleasure with your CARF-Models F4U-1D Corsair.
Please check the important values at the end of this manual for control throws and Center of
Gravity!
Page 4
Instruction Manual F4U-1D Corsair
Advertisement
