Originally Posted by
treadigraph
That sounds like the BN-2T does to me at times... I was quite surprised when I first heard it, wonder if the exhaust or even the prop has been modified to reduce the noise footprint. Nothing at all like the old shake, rattle and roll piston BN-2s of course!
It was indeed one of the BN-2T "Spylanders". The western end of its racetrack pattern brought it directly overhead me several times, with G-BJOH being read off through binocs.......