The modular spacecraft 10, wherein said top coupling mechanism coupled to {TAIL ~ said top forward adapter section} comprises {HEAD ~ an active common berthing mechanism} 
The modular spacecraft 10 , wherein said top coupling mechanism coupled to { TAIL ~ said top forward adapter section } comprises { HEAD ~ an active common berthing mechanism }
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD HEAD HEAD