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Piper
flaps have a large gap between the flap and the rear wing spar. This gap
allows high pressure air from under the wing to rush upwards into the low pressure area above the wing. This vertical air current has the effect of separating the air from the upper surface of the flap, reducing its lift and increasing the drag! Laminar
Flow Systems flap gap seals eliminate this problem! ( Some of the
latest model Pipers actually incude flap gap seals, Laminar Flow Systems flap gap seals are made of aircraft aluminum, and are guaranteed for the life of the aircraft! On their own, flap gap seals will produce a cruise speed increase of approximately 3 mph, as well as an increase in rate of climb. Installation can be done without removing the flaps, and takes only one and a half hours. Laminar Flow Systems flap gap seals are very reasonably priced at only $195 per set for most Pipers. ( for Senecas, the price is $195) Note:
It is always preferable to use mods of the same material as the part to
which they are attached. This eliminates problems of incompatibility,
differential shrinkage or expansion leading to cracks, problems in paint
matching, etc. Always attach only |