General Specifications List

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• Main Rotor: 23 to 27 feet
• Blade Chord: 7 inches
• Length Overall: (rotor turning) 23-27 feet
• Length of Aircraft without Rotor installed: 18 feet (16 feet, short-versions)
• Wheel Track: 7 feet
• Wheel Base: 13 feet - (11.5 feet, short-versions)
• Landing Gear: Conventional (tailgear)
• Overall Height: 8.5 feet
• Cabin Width: 26 inches
• Cabin Height: 42 inches
• Cabin Length:
  • Approx. 49 inches (single)
  • 75 inches (2-place)
• Baggage: Small shelf aft seat(s) 10 lbs. max.
• Rotor Disc Area:
  • 415 Sq. feet (23 ft.)
  • 573 Sq. feet (27 ft.)
• Disc Loading (@ gross wt.):
  • 1.8 lb./sq. ft. single-place (23 ft.)
  • 1.9 lb./sq.ft., 2-place (27 ft.)
• Tailplane Area:
  • Vertical Fin: 4.52 Sq. feet
  • Tip Shields: (2) 1.59 Sq. feet each
  • Rudder: 3.3 Sq. feet
  • Horizontal Stabilizer: 8.8 Sq. feet LW-3 series (8 Sq. feet for elevator models)
  • Elevator: (LW-2 and LW-2+2) 9 Sq. feet
• Control Method:
  • Conventional rudder, fully-tilting head (LW-3)
  • laterally-tilting head with elevator (LW-2, long frames only).
• Rotor/horizontal tail volume ratio:
  • 22% for long frame
  • 14.9% for short frame.
• Empty Weight:
  • (Single-Place)
    • 351 lbs. w/Rotax 582-618, 2Si 540-L(two-stroke powered)
    • 452 lbs. w/ 2180 VW (four-stroke powered)
  • (Two-Place)
    • 451 lbs. w/ Hirth F-30 (two-stroke powered)
    • 520 lbs. w/ Rotax 914 (four-stroke powered)
• Gross Weight:
  • 750 lbs. Single-Place
  • 1100 lbs. 2-Place.
• Fuel Capacity:
  • 8.5 US gal. (single-place)
  • 13.5 US gal. (2-place)
• Center of Gravity of loaded machine: Located on propeller thrust-line (slight variations with different powerplant installations) Horizontal position accomodated by adjustable pylon.
• Cruise Speed: 65 - 75 mph
• Minimum Speed: 15 - 20 mph
• Landing Speed: 10 - 15 mph
• Takeoff distance: 100-750 ft., depending on type of prerotation. (Hydr, mechanical, electric)
• Landing Roll: 0-25 ft.
• Rate of Climb: Varies with powerplant, density altitude and weight.
• Ceiling: Undetermined for normally aspirated engines..20,000+ with Rotax 914.
• Two-Place seating: Tandem, solo from rear seat w/ fully dual controls.
• Construction: Welded SAE 4130 steel tubing, Dacron fabric covering.