The Teman Mono-Fly is an American ultralight aircraft that was designed by structural engineer Bob Teman.
sample Teman Mono-Fly plans & manuals (6 of 150 pages)
The Teman Mono-Fly was designed to comply with the US FAR 103 Ultralight Vehicles rules, including the category’s maximum empty weight of 254 lb (115 kg). The aircraft has a standard empty weight of 250 lb (113 kg). It features a strut-braced high-wing, a single-seat, open cockpit, tricycle landing gear and a single engine in pusher configuration.
The aircraft is made from aluminum tubing that is pop riveted together using gussets. On early examples the flying surfaces were covered in dope and aircraft fabric covering, but this was later changed to heat-shrunk Dacron sailcloth, to save weight. Its 30.8 ft (9.4 m) span wing employs a modified Clark Y airfoil. The wings are supported by a single lift strut and a jury strut. The pilot is accommodated on an open seat, without a windshield. The controls are conventional three axis, but the aircraft uses a control yoke rather than the more common control stick. The landing gear features main wheel bungee suspension.
Reviewer Andre Cliche described the Mono-Fly as “well engineered”. It is stressed to +10/-10g.
Specifications Teman Mono-Fly
- Crew: one
- Length: 17.2 ft (5.2 m)
- Wingspan: 30.8 ft (9.4 m)
- Height: 6.6 ft (2.0 m)
- Wing area: 124 sq ft (11.5 m2)
- Airfoil: modified Clark Y
- Empty weight: 250 lb (113 kg)
- Gross weight: 550 lb (249 kg)
- Fuel capacity: 5 U.S. gallons (19 L; 4.2 imp gal)
- Powerplant: 1 × Rotax 503 twin cylinder, two-stroke aircraft engine, 50 hp (37 kW)
- Maximum speed: 63 mph (101 km/h, 55 kn)
- Cruise speed: 45 mph (72 km/h, 39 kn)
- Stall speed: 20 mph (32 km/h, 17 kn)
- g limits: +10/-10
- Rate of climb: 1,000 ft/min (5.1 m/s)
- Wing loading: 4.43 lb/sq ft (21.6 kg/m2)
While flying in an Teman Mono-fly, a rudder cable broke throwing the aircraft in a tightening spiral. Accelerating fast with no control, pilot Ron Kline deployed his older BRS-2 (electrically-activated) BRS system.
“We watched the ultralight flying straight and level when we heard a loud pop, followed by the motor quitting. We could see the ultralight making tight turns. After three turns, the nose headed for the ground like a lawn dart. At 500 feet, he deployed maybe at 80 mph.
Today’s score:
BRS-1;
Death-0.”
Result: Pilot Survived!
