Originally Posted by
CGameProgrammerr
I'm sure it's because it's a door - you can see the hinge on the bottom and a little lever for opening it. Probably meant primarily for medevac versions, which that prototype is. But I agree that it *seems* like it would cause a lot of drag.
The rear door utility was very high on our list. we heard a lot of negative feedback from low and awkward loading in clamshell door setups on other products, so this offers significantly better utility if we can manage the performance trade. At this setup I can walk my 6ft self underneath the tailboom on high skids and the loading height is a bit higher than a heavy work truck bed. Seems to be a good option at normal and high skids.
The drag was not as significant as initially expected, but will be validated in flight testing. Stay tuned!