-1
We don't have planes sitting on the runway, these para frags would not destroy tanks unless possibly a perfect hit on top (doubtful even). Far as town goes just how much can one little bomb do? an Ack gun?
I can see delay fused bombs used on 109s and 190s - 250kg bombs which were dropped above formations, this is only thing I can think of that might actually work.
If in the future - we had runways with aircrafts lined up along side of it, it would make perfect sense... Aces high I can only see it damaging a small row of buildings in town..