Bowers Fly Baby
From Wikipedia, the free encyclopedia
| Bowers Fly Baby | |
|---|---|
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| Type | Sport and personal aircraft |
| Manufacturer | homebuilt aircraft |
| Designed by | Peter M. Bowers |
| Maiden flight | 1962 |
| Produced | 1962-today |
| Number built | more than 500 |
| Unit cost | US$10,000 in 2007 |
The Bowers Fly Baby is a homebuilt, single-seat, open-cockpit, wood and fabric low-wing monoplane that was designed by famed United States aircraft designer and Boeing historian, Peter M. Bowers.
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[edit] Development
The prototype Fly Baby first flew in 1962.
Variants included a biplane version called the Bowers Bi-Baby and several dual cockpit designs by various builders.[1]
The Fly Baby was the winner of the Experimental Aircraft Association's 1962 design competition.[1]
Over 500 Fly Babies have been completed to date, with scores still flying worldwide and an active network of builders and owners. It is built from plans and was designed to be constructed in a garage using only basic tools, by a person of average skill.
[edit] Regulations
[edit] USA
In the United States of America the FAA categorizes the Fly Baby as an Experimental Amateur-Built aircraft. It also fits the FAA's specifications for a Light Sport Aircraft and can be flown in the US by pilots holding a Recreational Pilot or Sport Pilot certificate.
[edit] Canada
In Canada the Fly Baby may be built as an amateur-built aircraft[2] or as a basic ultra-light aeroplane.[3] It may be flown with an Ultra-light Pilot Permit or higher aeroplane licence.[4]
[edit] Design
The Fly Baby was designed to be a very simple aircraft. For example, the fuel gauge is a stiff wire attached to a float poking up through the gas cap (a common application in the 1930s and 1940s, as seen on Piper and Aeronca light aircraft). The structure is of aircraft-grade spruce and plywood (Bowers did not advocate skimping on the quality of structural wood), covered with fabric . Aileron controls are push-tube, elevator controls are a combination of push-tube and cable, the rudder is cable-controlled.[1]
For fabric Bowers suggested yard goods store polyester - even with decorative printing, heat shrunk with a common steam iron, rather than the aircraft grade equivalent.[citation needed]
The landing gear is fixed and unsprung. The main landing gear struts are made of laminated wood with a steel axle. The only shock absorption comes from the tires themselves. Hydraulic wheel brakes are usually fitted.
The aircraft was designed to be powered by a 65 horsepower (48 kW) Continental A-65 piston enginetaken from a Piper Cub. Engines of up to 100 horsepower (75 kW) have been fitted, including the Continental O-200 and converted Corvair engines.
While the instrumentation installed is up to the builder, most Fly Babys are equipped for visual flight rules (VFR) only. An electrical system is optional; many Fly Baby owners hand-prop the engine for starting, and use a handheld radio.
The Fly Baby's wings fold up against the fuselage enabling it to be stored in a single-car garage or a car trailer. The wings can be folded or unfolded in about 15 minutes. The airplane was designed to be stored in a garage and towed to the airport on its own gear. In practice, most owners use a trailer or keep their Fly Baby hangared at an airport.
A Fly Baby can be converted to a biplane Bi-Baby in less than one hour by adding the struts and upper wing to the existing aircraft or it can be built as a biplane version from the start.[1]
Some of the components used, such as the fuel tank and engine, were designed to be taken from the Piper Cub, which were cheap and plentiful in 1962. Even today, the total cost of construction can be under US$10,000.
[edit] Specifications (Fly Baby)
Data from Plane and Pilot: 1978 Aircraft Directory[1]
General characteristics
- Crew: one pilot
- Length: 18.83 ft (5.74 m)
- Wingspan: 28.0 ft (8.54 m)
- Height: ()
- Wing area: 120 ft² (12.24 m²)
- Empty weight: 605 lb (274 kg)
- Max takeoff weight: 924 lb (419 kg)
- Powerplant: 1× Continental Motors C-85 flat-four engine, 85 hp (63.9 kW)
Performance
- Maximum speed: 120 mph (194 km/h)
- Cruise speed: 110 mph (178 km/h)
- Stall speed: 45 mph (73 km/h)
- Range: 300 mi (486 km) at 8,000 ft (2,438 m)
- Rate of climb: 1100 ft/min (5.6 m/s)
- Wing loading: 7.7 lb/ft² (34.2 kg/m²)
- Power/mass: 10.8 lb/hp (6.56 kg/kW)
[edit] Specifications (Bi-Baby)
Data from Plane and Pilot: 1978 Aircraft Directory[1]
General characteristics
- Crew: one pilot
- Length: 18.83 ft (5.74 m)
- Wingspan: 22.0 ft (6.71 m)
- Height: ()
- Wing area: 188 ft² (19.24 m²)
- Empty weight: 652 lb (295 kg)
- Max takeoff weight: 970 lb (440 kg)
- Powerplant: 1× Continental Motors C-85 flat-four engine, 85 hp (63.9 kW)
Performance
- Maximum speed: 100 mph (162 km/h)
- Cruise speed: 90 mph (146 km/h)
- Stall speed: 40 mph (65 km/h)
- Range: 275 mi (446 km) at 8,000 ft (2,438 m)
- Rate of climb: 900 ft/min (4.6 m/s)
- Wing loading: 5.15 lb/ft² (22.9 kg/m²)
- Power/mass: 11.4 lb/hp (6.89 kg/kW)
[edit] References
- ^ a b c d e f Plane and Pilot: 1978 Aircraft Directory, pages 135-136. Werner & Werner Corp, Santa Monica CA, 1977. ISBN 0-918312-00-0
- ^ Transport Canada (February 2, 2005). EXEMPTION FROM SECTION 549.01 OF THE CANADIAN AVIATION REGULATIONS AND CHAPTER 549 of THE AIRWORTHINESS MANUAL – AIRWORTHINESS STANDARDS - AMATEUR-BUILT AIRCRAFT. Retrieved on 2007-10-17.
- ^ Transport Canada (April 17, 2007). Ultra-light Aeroplane Transition Strategy. Retrieved on 2007-10-17.
- ^ Transport Canada (December 01, 2005). CAR 401.21 Ultra-light Aeroplanes - Privileges. Retrieved on 2007-10-17.
