Usually 4 planes at a time packed carefully in my suv. It's a combination of 2 .40 size and 2 .60 size planes. But this spring it may drop down to only 3 though since I'll be moving up to some larger planes. It's usually a combination of 2 from each group below:

.40 size
- hot rodded hangar 9 PTS P-51
- hot rodded seagull PC-9
- standard trainer (it's fun t
- hangar 9 t-34
- electric stick

.60 size
- P-51
- hellcat
- corsair
- P-47

And coming in the spring:
.120 size and larger
- .120 size stearman
- .120 size typhoon
- .120 size pattern plane
- IMAA size T-28

So I'll have to see what will fit.