1210: Sqn Patrol 9 a/c Margate Approaches to the Thames. Over the target contacted Lumbra Control vectored to 12 + Bandits angles 15. The e/a turned into 109's 5 or 6 diving on us in B flight. Scatteed and took 2 second pot shots trying to clear each other tails. I got credit for damage to one, but didnt see any go down the Sgn lost two.