LoPresti Main Gear Doors are direct replacements
for Piper main landing gear doors, only we have greatly
improved the quality of materials in these parts. LoPresti
Speed Merchants employs the same high quality carbon fiber
and vinyl ester resin manufacturing process to construct
our main gear doors that we utilized in our cowl modifications.
The finished parts are stiffer than stock doors or other
vendors replacement doors, more durable and UV resistant,
and do not display the shrinkage problems of lower-cost
resin systems have. Shrinkage of polyester resin parts contribute
to the surface cracking and twisting (or warping) common
in other vendor’s parts. By replacing the fiberglass that
Piper uses with carbon fiber we have stiffened the gear
doors by orders of magnitude.
Is this a speed mod? No and yes. Our parts
are shaped identically to Pipers stock shape, BUT most airplanes
are flying with weak (or broken) main landing gear doors.
Broken or weak doors "suck" open in flight and
reduce the speed of your airplane. Our new main landing
gear doors are stiffer, and will remain closed, providing
you with the speed your airplane was designed to produce.