[ios][1.3.55] Crash when entering ship combat

[bookworm21]

When entering ship combat with non-functional engines, the game crashes. Upon reopening the game and loading the captain, it takes me straight to the "you lost the combat" results screen.

I presume this also happens when you enter combat with no pilots etc, but have not tested.

Haven't had the chance to test this on the latest version yet, so it may have been squooshed

[fallen]

#STF-3754

[Cory Trese]

FFN