[1][2][3][4] Fisher Flying Products was originally based in Edgeley, North Dakota, United States, but relocated to Vaughan, Ontario, Canada.

[2][3][5][6][7] The Avenger was designed to meet the requirements of the United States FAR 103 Ultralight Vehicles regulations, including the maximum 254 lb (115 kg) empty weight.

Design goals included low cost, an attractive appearance, and accommodation for a 76 in (193 cm) tall, 240 lb (109 kg) pilot.

[3] Although originally designed to accept the Half VW powerplant (a Type 1 Volkswagen engine block cut in half), the aircraft empty weight can be reduced to 250 lb (113 kg) with the use of a lighter weight engine, such as the 28 hp (21 kW) Rotax 277 or the 35 hp (26 kW) 2SI 460-35.

This is technically feasible but the switch from a VW engine to a single cylinder Rotax also reduces the performance below a safe level.