Firestreak/Red-Top generation of missiles a clean pair of heals and were intended to be used air to ground
A couple of questions: Does your selection of missiles in the previous generation imply that the challenge is British?
And, purely as an non-native speaker: What does "show a clean pair of heals" mean
LM: just noticed something else - it's got a bloody thick wing. Thick wings and deltas do not go well together.
That's why I said "Not for very high speeds...."