Are you refering to the annular radiators fitted to some aircraft fitted with inverted inline v12 engines such as the Focke-Wulf Fw 190D-9, Focke-Wulf Ta 152, and some Junkers Ju 88s.
The Fascinating Facts on Aviation Fuel notice has given me a fundraising idea the collection might like to consider. In exchange for the price of a gallon of fuel you could be awarded a ‘I kept the Spitfire Flying for a Minute’ certificate, signed perhaps by the Aviation trustee and the Chief Pilot. How about it?
Interesting idea, I’m so looking forward to this yearโs season Mew Gull, Camel, and Comet perhaps.
Here is a video I took of one of my favourite display from last year.