There will be no repair pad. I believe HTC has said as much before.
The challenge is to return to base in 1 piece. And it IS an intentional challenge, per Hitech. That's why you have to be on the cement for a safe landing, vs "anywhere on the ground miles around the field"... That's the price you pay to get your name in lights.
There is no penalty for upping a new plane, whereas in real life you are limited in resources. There's no challenge if you can keep repairing yourself over and over, IMO. I find the challenge is to hotpad and go back out. That means every hit, every hole, takes you 1 step closer to losing that wing. It increases the difficulty of engaging the enemy every time you take damage. Because the next time you get hit could be the straw that broke the camel's back. Kind of a gamble, that way.
That's the way I like it.