What was found
DURING TAKEOFF ROTATION, THE CANOPY OPENED. A CANVAS CANOPY COVER WAS SUCKED OUT OF THE COCKPIT AND CAUSED DAMAGE TO THE PROPELLER. THE PILOT REPORTED SEVERE VIBRATION FOLLOWED BY A FIRE IN THE ENGINE AREA THAT DESTROYED THE ACFT. PILOT/BUILDER SUGGESTS THE SECONDARY CANOPY LATCH MECHANISM IS NOT RUGGED ENOUGH TO MAINTAIN INTEGRITY OVER LONG EXPOSURE TO PERSONS ENTERING AND EXITING THE COCKPIT AREA.