Here's µMLAS Rev Zero viewed from behind. Motors are canted in pairs through the centerline; one motor mount of each pair passes through the bulkhead into the parachute compartment to provide a flow path for ejection charge gasses. While µMRZ is flyable, it hasn't flown for a couple of reasons: it's not aerodynamically stable without a lot of nose weight - a LOT of nose weight - and evolution of the real MLAS had me hard at work on µMLAS Rev One shortly after µMRZ was completed, leaving it to gather dust on the bookshelf. Eventually, I'll dope out a motor / ballast combination that works and fly the thing though. That canted motor cluster is way too interesting to just ignore.