In 1996, after a similar development program to the Chinook Plus 2, ASAP introduced an improved two-seat Beaver, designated the RX-550 Plus.

These were developed and manufactured in-house at ASAP, but marketed by a separate division, Summit Powered Parachutes International.

[13][14][15] ASAP also designed two welded steel tube-frame powered parachute models especially for the US market.

ASAP itself provides parts for the legacy Birdman Chinook and Spectrum Beaver aircraft fleets.

[8][9][20][21] In 2013 the company was sold to John and Kim Couch, moved to Sealy, Texas and renamed the Aeroplane Manufactory LLC.