It wasnt the pilot who shot down the heli. It was his WSO. There
were quite a few Hinds at that time dropping troops. When one of it
landed to drop its troops, his wso took it out just after it took
off. Taking it down while it is flying with a lgb would be nearly
impossible otherwise.
according to wiki, the heli was taken out 240m from ground, an
estimated height by special forces on the ground. i found out from
a blog that a 40 storey HDB flat is about 150m from the ground so
that means, the hind was about 100m higher than a 40 storey
flat.
i reckon that the helicopter must have moved a bit before
reaching the height of 240m because i cant reason how tactical is
it for the pilot to make a vertical ascent of 240m on the spot in a
combat situation of a desert with plenty of clearing. futhermore,
it is more than 30 seconds from the time the F-15 picked out the
hind unloading it's troops to the time the LGB struck the target. i
guess that the hind must have moved, it could be flying before the
impact.