Introduced in the mid-1990s the Explorer II design is now out of production as the company is developing into the Raven Rotor-Plane for the light-sport aircraft category.[2]
The aircraft was designed to comply with the US Experimental - Amateur-built aircraft rules. It features a single main rotor, a two-seats-in side-by-side configuration open cockpit without a windshield and conventional landing gear. The acceptable power range was 90to and the standard engine used is a three cylinder in-line, liquid-cooled, four-stroke, 900NaN0 Geo Metro automotive conversion powerplant in tractor configuration.
The aircraft fuselage is made from welded 4130 steel and bolted-together aluminum tubing. Its two-bladed rotor has a diameter of 271NaN1. The aircraft's specifications include a typical empty weight of 365lb and a gross weight of 890lb, giving a useful load of 525lb. With full fuel of the payload for the pilot, passengers and baggage is 477lb.
The standard day, sea level, no wind, take off with a 900NaN0 engine is 4000NaN0 and the landing roll is 500NaN0.
The manufacturer estimated the construction time from the supplied kit as 100 hours.
In April 2015 no examples were registered in the United States with the Federal Aviation Administration and it is not clear if any were produced at all.[3]