Engineering:Schreder HP-14
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Short description: American single-seat glider
| HP-14 | |
|---|---|
 | |
| General information | |
| Type | Club class Sailplane |
| Manufacturer | Homebuilt |
| Designer | Richard Schreder |
| History | |
| First flight | 1966 |
The HP-14 is a Richard Schreder-designed all-metal glider aircraft that was offered as a kit for homebuilding during the 1960s and 1970s.[1] It was originally developed by retrofitting improved wings to the fuselage and tail of the HP-13, and first flew in 1966.[2] Schreder won the 1966 US national soaring championship in the prototype HP-14.[3]
The HP-14 features a folding V-tail and 90-degree flaps for glidepath control. The fuselage and wings are of all-aluminum riveted construction.[3]
Development
Variants
- HP-14
- Developed from a modified HP-13 fuselage, with V-tail, using the Wortmann section wings of the Schreder HP-12[4]
- HP-14C
- An 18-meter span HP-14 produced by Slingsby with a conventional cruciform tail,[4] flown by Nicholas Goodhart at the 1968 World Championships at Leszno in Poland. The initial prototype used an enlarged V-tail.{{Citation needed|date=October 2011} ;HP-14T
- The HP-14 fitted with the 18-meter 'C' wing and a T-tail.[4]
- Krutchkoff SHP-1
- An HP-14 with a new fuselage designed by Andre Krutchkoff.[4]
- Zauner OZ-4
- Modified version with a 19.2 m (63.0 ft) wingspan and a 850 lb (386 kg) gross weight.[4]
Specifications (Slingsby HP-14C)
Data from Coates, Andrew. "Jane's World Sailplanes & Motor Gliders new edition". London, Jane's. 1980. ISBN 0-7106-0017-8
General characteristics
- Crew: 1
- Length: 23 ft 10.5 in (7.28 m)
- Wingspan: 59 ft 0.5 in (18 m)
- Height: 3 ft 11 in (1.19 m)
- Wing area: 146.2 sq ft (13.58 m2)
- Aspect ratio: 23.9
- Airfoil: Wortmann FX-61-163
- Empty weight: 639 lb (290 kg)
- Gross weight: 840 lb (381 kg)
Performance
- Maximum speed: 134 mph (216 km/h, 116 kn)
- Maximum glide ratio: 44 @ 96 km/h (60 mph)
- Rate of sink: 98.4 ft/min (0.50 m/s)
References
- ↑ Air Trails: 80. Winter 1971.
- ↑ "J2mcL Planeurs - Fiche planeur n°". https://www.j2mcl-planeurs.net/dbj2mcl/planeurs-machines/planeur-fiche_0int.php?code=1269.
- ↑ 3.0 3.1 Activate Media (2006). "HP-14 HP Aircraft, LLC". http://www.sailplanedirectory.com/PlaneDetails.cfm?PlaneID=162. Retrieved 2008-07-24.
- ↑ 4.0 4.1 4.2 4.3 4.4 "Schreder HP-13 and HP-14". Sailplane Directory. Archived from the original on 31 January 2010. https://web.archive.org/web/20100131081601/http://www.sailplanedirectory.com/schred.htm. Retrieved 2009-08-15.
- Schreder Designs webpage
- Simons, Martin. "Slingsby Sailplanes". Shrewsbury, Airlife. 1996. ISBN 1-85310-732-8
- Sailplane Directory website
- Coates, Andrew. "Jane's World Sailplanes & Motor Gliders new edition". London, Jane's. 1980. ISBN 0-7106-0017-8
Template:Schreder Sailplanes Template:Otto Zauner aircraft
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