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Preiss RHJ-7
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| Type designation |
RHJ-7 |
| Designer |
Henry Preiss and Richard Schreder |
| Competition class |
Not applicable |
| Crew |
2 |
| Length |
22.8 ft (6.95 m) |
| Height |
|
| Cockpit width |
|
| Cockpit height |
|
| Wingspan |
56.5 ft (17.22 m) |
| Wing area |
140 ft² (13 m²) |
| Aspect ratio |
22.8 |
| Wing profile |
FX 61-163 |
| Empty mass |
ca. 492 lb (233 kg) |
| Maximum mass |
892 lb (404 kg) |
| Wing loading |
6.4 lb/sq ft (31.8 kg/m²) |
| Maximum speed |
110 knots (204 km/h) |
| Maneuver speed |
90 knots (167 km/h) |
| Speed in strong turbulence |
90 knots (167 km/h) |
| Minimum sink rate |
ca. 120 ft/min (0.61 m/s) |
| Best glide ratio |
ca. 37 at 56 knots (105 km/h) and AUM |
The Preiss RHJ-7 is a side-by-side two-seat flapped glider developed by Preiss from a Schreder HP-14. The design used standard HP-14 wings with a 2 ft (0.6 m) center section added to the fuselage, V-tail, fixed undercarriage and a single control stick between the seats. The RHJ-7 first flew in 1966 and was the starting point for the RHJ-8 and RHJ-9 variants, also homebuilts.
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