The incubator when fully equipped weighs around 16 stones. It is usually fitted to a standard ambulance trolley to which are attached various pieces of medical equipment
So much for progress! I worked for Air-Shields (a Narco subsiduary) in the late 60's. we had a transport incubator which could be handled empty by one person , contained it's own Oxy-cylinder and gel-battery supply and was a fully self-contained version of the standard prem-ward incubator.
I had the pleasure of flying into Stornoway and benbecula in a Viscount, IIRC, to serviceand safety-check their incubators.
The Sisters at the Sacred heart Hospital , South Uist, insisted on providing a lunch......work progressed and a sister enquired how much longer it would be,to completion....the bus was waiting at my convenience
Wonderful hHighland hospitality and a memorable journey.