I am super interested in the rear ejection. I have yet to build something like that. Two questions:
1). How will you arrange the parachute and cord? Either side of the engine mount? Spooled around? Something else?
2). Since there is close to no volume for the gas to expand, will the ejection be extra energetic calling for a super long shock cord?
Bonus question. What are the chances the recovery spool will exit at an angle and possibly complicate things?
( Parachute gets pinched maybe? Probably nil, but anything is possible.)