Hoffmann H40

The Hoffmann H40 was a prototype sports plane built in Germany in 1988. Designed by Wolf Hoffmann based on his Dimona motor-glider, it was a conventional, low-wing monoplane with side-by-side seating for two and tricycle undercarriage. The aircraft's high aspect ratio wings and T-tail were carried over from its motorglider heritage, but the span was shorter than that of the Dimona. Construction throughout was of composite materials. Hoffmann intended this aircraft to compete with sporting two-seaters such as the Grob G 115 and Robin ATL, but was unable to find the financial backing to bring the aircraft to market, despite a 30% share bought in the project by German pump manufacturer ABS.

Specifications

Data from Jane's All The World's Aircraft 1988-89^[1]

General characteristics

• Crew: One pilot
• Capacity: 1 passenger
• Length: 7.26 m (24 ft 11¾ in)
• Wingspan: 10.76 m (35 ft 3½ in)
• Height: 2.39 m (7 ft 10 in)
• Wing area: 13.62 m² (145.3 ft²)
• Empty weight: 590 kg (1,300 lb)
• Gross weight: 850 kg (1,874 lb)
• Powerplant: 1 × Lycoming O-235 flat-four, 86.5 kW (116 hp)

Performance

• Maximum speed: 210 km/h (130 mph)
• Cruising speed: 180 km/h (111^[2] mph)
• Range: 680 km (422 miles)
• Service ceiling: 4,500 m (14,800 ft)
• Rate of climb: 3.6 m/s (700 ft/min)

References

• Lambert, Mark (1993). Jane's All the World's Aircraft 1993-94. Coulsdon, UK: Jane's Data Division. ISBN 0-7106-1066-1. 
• Taylor, John W.R. (1987). Jane's All the World's Aircraft 1987-88. London: Jane's Yearbook. p. 98. ISBN 0-7106-0850-0. 
• Taylor, John W.R. (1988). Jane's All The World's Aircraft 1988-89. Couldon, UK: Jane's Defence Data. ISBN 0-7106-0867-5. 
• Taylor, Michael J. H. (1989). Jane's Encyclopedia of Aviation. London: Studio Editions. p. 929. ISBN 0-7106-0710-5. 
• Simpson, R. W. (1995). Airlife's General Aviation. Shrewsbury: Airlife Publishing. p. 214. ISBN 1-85310-577-5. 
• "Hoffmann Seeks Producer". Flight International: 63–64. 27 June 1987. Retrieved 2008-05-04. 
• "Hoffmann finds backer for light trainer". Flight International: 15. 27 February 1988. Retrieved 2008-05-04.