Further to the downed Angel. Two things stick out...to me anyway..
1. the first circuit (which I didnt see) was said to be airborne after 300 mtrs Angel being STOl, there must have been good grunt available then. Which didnt last because rough running was heard on downwind and approach. After run ups > they tried again.
2..On the secong take -off roll, why nobody chopped the power and jumped on the brakes when there was pracitaly none left...Que? 3. Did the rough running engine actually fail.?....adding to the cut back from the "failed" engine thus giving leading to the impression of a silent glder final.
Perhaps we'll never know. The aircraft had been sitting around for a couple of years, old fuel, mud wasps up the tank vents ...no air in, no fuel out
BIQ the Aztec a year or so before ,was likewise left for years. That got parted out in the bush shortly afte a "hairy goat" departure which I also witnessed.