Engineering:Haufe Buzzer 2
| Buzzer 2 | |
|---|---|
| Role | Motor glider |
| National origin | United States |
| Designer | Walter Haufe |
| Introduction | 1975 |
| Status | Production completed |
| Primary user | Walter Haufe |
| Number built | one |
| Developed from | Haufe Ha-S-2 Buzzer |
The Haufe Buzzer 2 is an American high-wing, strut-braced single-seat motor glider that was designed and constructed by Walter Haufe.[1][2]
Design and development
After Haufe's earlier Buzzer was deemed less than successful, due to the insufficiently reliable Nelson Aircraft engine, Haufe retired that design and designed a new aircraft, which became the Buzzer 2. Intended to be a cross between a conventional sailplane and a light aircraft the aircraft was built with a 34 ft (10.4 m) wing span and has a 16:1 glide ratio.[1][2]
The Buzzer 2 is constructed with a welded steel tube fuselage and a wooden wing, all covered with doped aircraft fabric covering. The relatively low 8:1 aspect ratio wing uses a single spar and is supported by a single lift strut. The wing employs a modified NACA 2412 airfoil. The landing gear is a fixed monowheel and two wing-mounted outrigger wheels that support the wing during taxiing. The engine is a Curtiss snowmobile engine that turns at a maximum rpm of 6000, powering the propeller through an oil-immersed 2:1 chain reduction drive, giving a propeller speed of 3000 rpm.[1][2][3]
Only one Buzzer 2 was constructed.[1][2][4]
Operational history
Haufe reported that the aircraft uses 600 ft (183 m) to take-off and climbs at about 500 feet per minute (2.5 m/s). The aircraft was still on the US Federal Aviation Administration registry in July 2011, registered in the Experimental - Amateur-built category.[2][4]
Specifications (Buzzer 2)
Data from Sailplane Directory and Soaring[1][2]
General characteristics
- Crew: one
- Wingspan: 34 ft 0 in (10.36 m)
- Wing area: 124 sq ft (11.5 m2)
- Aspect ratio: 8:1
- Airfoil: NACA 2412 modified
- Empty weight: 390 lb (177 kg)
- Gross weight: 600 lb (272 kg)
- Powerplant: 1 × Curtiss two stroke snowmobile engine
Performance
- Maximum glide ratio: 16:1
- Rate of climb: 500 ft/min (2.5 m/s)
- Wing loading: 4.8 lb/sq ft (23 kg/m2)
See also
References
- ↑ 1.0 1.1 1.2 1.3 1.4 Activate Media (2006). "Buzzer 2 Haufe". Archived from the original on 29 August 2012. https://web.archive.org/web/20120829145224/http://www.sailplanedirectory.com/PlaneDetails.cfm?PlaneID=50. Retrieved 25 July 2011.
- ↑ 2.0 2.1 2.2 2.3 2.4 2.5 Said, Bob: 1983 Sailplane Directory, Soaring Magazine, page 121. Soaring Society of America, November 1983. USPS 499-920
- ↑ Lednicer, David (2010). "The Incomplete Guide to Airfoil Usage". http://www.ae.illinois.edu/m-selig/ads/aircraft.html. Retrieved 1 July 2011.
- ↑ 4.0 4.1 Federal Aviation Administration (July 2011). "Make / Model Inquiry Results N7462". http://registry.faa.gov/aircraftinquiry/NNum_Results.aspx?NNumbertxt=7462. Retrieved 25 July 2011.
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