HP-18 HP Aircraft, LLC    Click on an image to see a full size photograph General Details Manufacturer: HP Aircraft, LLC Plane Name: HP-18 Classified as: Unclassified Country Of Origin: U S A Designer: R. E. Schreder No. of Seats 1 No. Built 0     Performance: L/DMax: 40     MinSink: 0.55 m/s / 1.8 fps / 1.07 kt       Specifications: Span Area Empty Weight Payload Gross Weight Wing Load Water Ballast m ft sq.m sq.ft kg lb. kg lb. kg lb. kg /sq.m lb. /sq.ft kg lb. 15 49.2 10.5 113 213 470 227 500 440 970 41.9 8.58 90 200 Aspect ratio: 21.4 Airfoil: Wortmann FX 67-150 Structure: forward fuselage, fiberglass; aft fuselage, metal; wings, all metal with foam ribs Engine: Comment: The HP-18 is one of the most successful of all U.S. homebuilt aircraft in terms of number built. The ship has a forward fuselage of fiberglass and a sheet metal rear fuselage. The wing is built up from a metal spar with foam ribs to which the aluminum skin is bonded. This 15 m. racing class ship carries water ballast inside the wing box spar, features flap-aileron coupling and has 90 degree deflecting flaps to permit steeper landing approaches and lower, safer touchdown speeds. The control stick is side-mounted with attached brake handle and trim tab although modifications using a conventional stick have been made. One belongs to the National Soaring Museum.             Your Comments:

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