The EDM Aerotec CoAX 2D/2R is a series of German coaxial main rotor helicopters designed and produced by EDM Aerotec of Geisleden. The aircraft is supplied complete and ready-to-fly.
|EDM Aerotec CoAX 2D/2R|
|Status||In production (2017)|
Design and developmentEdit
The CoAX 2D/2R was originally known as the FLIP 2 (Fly In Perfection) and is a derivative of the FLIP 1, a conventional helicopter with a main and tail rotor.
The CoAX 2D/2R was designed to comply with the European Class 6 microlight helicopter rules, including the category's maximum takeoff weight of 450 kg (992 lb). Design testing commenced in 2012.
The design features dual coaxial main rotors, a two-seats-in side-by-side configuration enclosed cockpit and skid landing gear with ground handling wheels. The two variants use different power plants. 
The aircraft fuselage is made from composites. Its dual composite two-bladed main rotors have a diameter of 6.50 m (21.3 ft). The aircraft has a typical empty weight of 283 kg (624 lb) and a gross weight of 450 kg (992 lb), giving a useful load of 167 kg (368 lb). With full fuel of 48 litres (11 imp gal; 13 US gal) the payload for the pilot, passengers and baggage is 132 kg (291 lb).
- CoAX 2D
- Current production version in 2017, powered by a six-cylinder, liquid-cooled, four stroke 135 hp (101 kW) D-Motor LF39 engine.
- CoAX 2R
- Version powered by a four-cylinder, liquid and air-cooled, four stroke 100 hp (75 kW) Rotax 912ULS engine. No longer advertised as available in 2014.
Specifications (CoAX 2D)Edit
Data from Tacke and manufacturer
- Crew: one
- Capacity: one passenger
- Empty weight: 283 kg (624 lb)
- Gross weight: 450 kg (992 lb)
- Fuel capacity: 48 litres (11 imp gal; 13 US gal)
- Powerplant: 1 × D-Motor LF39 six-cylinder, liquid-cooled, four stroke aircraft engine, 101 kW (135 hp)
- Main rotor diameter: 2 × 6.50 m (21 ft 4 in)
- Main rotor area: 66.3 m2 (714 sq ft)
- Maximum speed: 170 km/h (110 mph, 92 kn)
- Cruise speed: 150 km/h (93 mph, 81 kn)
- Disk loading: 6.7 kg/m2 (1.4 lb/sq ft)