The following is the description of the i28 Impulse from the 2002 Estes catalog:
The i28 Impulse Boost Glider combines boost glider technology with R/C aerobatics to deliver maximum flying fun! It blasts 600 ft. (183 m) into the air. The i28 Impulse comes almost ready to fly with factory built and covered wings, tail and fuselage, with linkage installed. Requires 2-Channel R/C system - sold separately. It can also be converted to fly with a Cox .049 glow engine - not included.