Roth RX-1 helicopter
Crew: 1
Length: 27 ft.
Height: 8.5 ft.
Weight: 1,120 lb. empty, 1,625 lb. gross
Powerplant: 1x Roth RV1 piston 165 hp.
Max speed 75 mph
Rotor diameter: 33 ft.
First flight:1942
Design features: Two wooden rotor blades, tricycle landing gear, welded tube frame, teetering rotorhead with stabilizer bar, can carry up to 500 lb's
Roth R-1 helicopter
Crew: 1
Length: 27 ft.
Height: 8.5 ft.
Weight: 1,150 lb. empty, 1,650 lb. gross
Powerplant: 1x Roth RV1 piston 165 hp.
Max speed 75 mph
Rotor diameter: 33 ft.
First flight:1943
Design features: Two wooden rotor blades, tricycle landing gear, welded tube frame with outer skin and canopy, teetering rotorhead with stabilizer bar, can carry up to 450 lb's
Roth R-2 (Licence built Societe Francaise Du Gyroplane SH.20 Cigale)
Image by Bruce, design by Brock.
Although the Roth-Dorand GII.A had decent performance for a helicopter of its generation, and delivered acceptable service, the type was never fully satisfactory, particularly in its maintenance and accident history. SFG, in collaboration with their Atlantean and Russian counterparts, worked to develop a new type with more utility and safety.
General characteristics:
Crew: 1 (pilot)
Passengers: 1-3 passengers (version dependent)
Length: 13.1 m (43 ft)
Rotor Diameter: 15 m (49 ft 2.5 in)
Height: 3.9 m (12 ft 11 in)
Loaded weight: 2,270 kg (5,004 lb)
Powerplant: Gnome-Rhône 9M (600 hp / 447 kW) radial engine
Performance:
Maximum speed: 94.5 knots (108 mph, 175 km/h)
Max Range: 475 km (295 miles)
Rate of climb: 5.3 m/s (1,043 ft/min)
Service ceiling: 3,500m (SH.20); 3,900 (SH.22)
Armament / Capacity:
- 2 × depth charges or 4 × 25kg bombs
or
- 2 panniers for mail, cargo, or casualty evacuation (1 person / 125kg each)
Variants:
- SH.20: Initial 2-seat prototype, unarmed (1941)
- SH.20M: 2-seat armed variant for Marine Nationale (1942)
- SH.21: 3-seat variant for Army utility and light reconnaissance (1942)
- SH.22: 4-seat variant for Army utility (1943)
- SH.22M: 4-seat variant for Navy utility (1943)
- SH.23-25: Reserved for possible export variants
- SH.26: 3-seat civilian helicopter (1944) based on SH.21
- SH.29: Turboshaft engine testbed (1946)
Roth R-3 helicopter
Crew: 1
Capacity: 2 passengers or 460 lb's of cargo
Length: 40 ft.
Height: 10 ft. 10 in.
Empty weight: 3,740 lb.
Gross weight: 4,710 lb.
Powerplant: 1x Roth RV-8 piston 585 hp.
Max speed 110 mph
Rotor diameter: 47 ft.
First flight:1947
Design features: three rotor blades, tricycle landing gear, fully enclosed cockpit/fuselage