From the McGraw-Hill Dictionary of Aviation:
Bunt:
i. An outside loop in which the aircraft remains on the outside throughout the maneuver.
ii. A maneuver involving a negative g pushover
The DM has assumed, wrongly, that the reference to the Tornado performing a bunt means the former (which, given that the Tornado was at 250' AGL, was clearly impossible).
From the Airprox report:
"Whilst transiting along the W side of the River Spey valley, heading 045° at 420kt and 250ft AGL and keeping clear of the Highland Wildlife Park to the W, he saw a glider at an estimated range of 500m, slightly above and to the L, which had been hidden behind the canopy arch. He bunted
and passed 100ft below it." [my emphasis]
In other words, the DM's graphic is pure
:
