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