Ampmaster Jr

Designer
Al Eastman

Al Eastman's electric sport plane, inspired by Stream Inc's 25E but larger and lighter. Don't be put off by the Clark Y airfoil: it's very aerobatic. It also builds into a great .20–.25 glow ship with an inverted engine.

Specifications

Construction
Light built-up balsa; Clark Y airfoil
Power
10-cell electric, or .20–.25 glow

Downloads

CAD drawings (.dwg, .dxf) open in most CAD programs. To view them for free, try a viewer such as LibreCAD (.dxf).

Plan sheets 4

Tap a sheet to open the full-size scan. On a computer, right-click it and choose “Save image as” to keep a copy; on a phone, press and hold.