Hairyplane: Thanks, I have not been to Old Warden for many years. My late father was known to some there in his time.
Aerohack:
Tipsy Aircraft Ltd started up at London Air Park, Hanworth in 1937/38
Yes, I know ... I have photographs of the man who ran that company, standing with a Tipsy and E O Tipps. The man was Brian Allen and he was my grandfather... He was RFC on SE5a and totally involved in flying and motor-bikes between the wars. Many exploits could be told - not least having the franchise for BSA and selling bikes to Lawrence of Arabia! Too old for second time around, two of his sons flew. He (and my grandmother) were killed by a V2 in 1944 and so I never knew them.