[1] Eipper added a seat, wheels, and a small engine behind the wing of the hang glider, and the Quicksilver ultralight was born.

Pilots still wanted a true three-axis control ultralight, so Eipper added spoilerons.

The next generation of MX had true ailerons which gave the aircraft full roll authority.

[citation needed] The current production MX Sports and Sprints are built from anodized aluminum tubing that is fastened together with bolts.

[4] In the summer of 1982, Peter Burgher modified a Quicksilver MX-1 with longer wings, larger fuel tanks, and modified carburetor jets flew from Utica, Michigan to St. Petersburg, Florida on an endurance flight setting 56 world and national records.