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.

Specifications

General characteristics

• Crew: 1 pilot
• Capacity: 1 passenger
• Wingspan: 17.22886 m (56 ft 6 in)
• Wing area: 13 m² (140 sq ft)
• Aspect ratio: 22.81r8
• Empty weight: 223 kg (492 lb)
• Gross weight: 404 kg (891 lb)

Performance

• Maximum glide ratio: 38 (at 105 km/hr)
• Rate of sink: 0.61 m/s (120 ft/min)

References

• Sailplane Directory

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