[2][3] Beaver ultralights have evolved as designs over time, have been produced by several companies and remain in production in the 21st century.

This Beaver model was fitted with floats and continued in production by Spectrum Aircraft until they ceased business in 1992.

There is an older video depicting a student out of control, showing his high skill doing fantastic maneuvers including inverted -however much too close to the ground and not a good example of responsible flight.

The combination of its predictable and docile handling, along with the reliable Rotax 503 50 hp (37 kW) engine, ensured its success.

The cockpit cage was changed to welded steel tube, from the previously used aluminum, and a sprung tailwheel was added.

[6] In 1995, Aircraft Sales and Parts (ASAP) of Vernon, British Columbia, purchased the Beaver tooling and redesigned the RX 550.

[2][3][5] In 1996, a new company, Freedom Lite of Walton, Ontario, reintroduced the Beaver RX 650, first displaying it at Sun 'n Fun that year.

This is similar to the original RX-28, but powered by a 40 hp (30 kW) Rotax 447 engine and with a wing derived from the RX 550 Plus design, with additional ribs.

All Beavers prior to the RX 550 Plus and the SS had pre-sewn Dacron envelopes, which enabled builders to complete the kits in as little as 100 hours.

Earlier models did not have a steerable nosewheel since the nose wheel load weight was very light and could be used a little like a tail dragger, but the SS and RX 550 Plus include this feature.

[3] The Beaver has proven very popular in service, both with flight schools and private owners, due to its ruggedness and pleasant handling characteristics.

[3] Spectrum Beaver RX 550 C-IGOW is on display in the storage wing of the Canada Aviation and Space Museum.

In 1986 this aircraft was flown 5,000 mi (8,047 km) from Halifax to land at Expo '86 in Vancouver by Carl Hiebert, a Canadian paraplegic pilot, to raise awareness of disability issues.