Design and Development
The HP-18 is a flapped (15-meter) sailplane featuring a V-tail and 90-degree flaps for glidepath control. The fuselage is composed of a prefabricated composite forward fuselage and a semi-monocoque aft fuselage, and features steeply reclined seating and a side-stick controller although modifications using a conventional stick have been made.
Major features:
- Very low cockpit with reclining seating position
- Sidestick (changed to conventional stick by some homebuilders)
- Two-piece canopy (changed to single piece forward opening by some homebuilders)
- V-tail that folds upwards for easy storage
- Wing structure composed of spars with caps pre-machined from solid aluminium plate and aluminium wing skins bonded to closely spaced foam ribs
- Fiberglass fuselage pod, wing tip skids and tail fairings
- Aluminium tail cone
- Winglets added by some homebuilders
- Water ballast carried inside the hollow aluminium wing spars
- Typical Schreder trailing edge flaps/airbrakes partially interconnected with the ailerons
Read more about this topic: Schreder HP-18
Famous quotes containing the words design and/or development:
“A good scientist is a person with original ideas. A good engineer is a person who makes a design that works with as few original ideas as possible. There are no prima donnas in engineering.”
—Freeman Dyson (b. 1923)
“The young women, what can they not learn, what can they not achieve, with Columbia University annex thrown open to them? In this great outlook for women’s broader intellectual development I see the great sunburst of the future.”
—M. E. W. Sherwood (1826–1903)