I was at an airfield yesterday where the only way to take off and defend in the air was to resupp the field ack to keep the vulchers off the runway. It's a two-way street.
Yeah I know what you mean. There are 2 things to consider in this situation.
1. Roll a ki84, 109g2, K, La7, and just keep rolling till you can get up. Extend out on the deck as far as you can and get alt, if you can escape the field. Then turn back and go shoot em all. If you can get the plane in the air, these are perfect planes to pull a quick reversal and pop a few as they overshoot. Using the best defensive planes makes a difference! It's always helpful if you can get your handy dandy teamates to roll at the same time as you.
2. Roll from a back field. If you and a buddy or just you can roll from a back field in a high alt fighter. P51, p38, 190D,A. Temp for example. Get some alt and go mess with them. I've also hoped that we can work on making the bases closer distance so players can defend from a back field more quickly in some cases.
In either case, this is something I would do instead of grabbing an M3, simply because I am not a vehicle guy ever.
Defending is one of the biggest rushes in this game. It's where you can find the most quick action and learn to fight in some intense situations. Just keep working at it!!