March 2004 Club Meeting

Bobs new Graupner Extra 300, OS 91 4 stroke, receives some attention at the March club meeting
Laser cut ribs for the Sheffield Hallam University heavy lift entry to the British Aerospace/BMFA University Challenge 2004.
What appears to be a ‘black shadow’ on the ribs is in fact the ‘burn marks’ left by the laser cutter, superb quality and so precise.