The radiator of the Spitfire Mk V was only 55 % of the size of te Me 109G's yet was only 4 % less efficient.
It could sustain higher pressure cooling than the German radiators hence the smaller size.
It used copper, which was about 3 times heavier, instead of aluminium.
View: https://www.youtube.com/watch?v=ImEpk1s-Vk0 (duration about 4 minutes into the link)
View: https://twitter.com/i/web/status/1407448574401581057
I asked about this issue on flugzeugforum.de and if the Germans ever managed to catch up but would not get a definite response.
One wonders how much faster German fighters would have gone when equipped with smaller (less draggy?) radiators.
It could sustain higher pressure cooling than the German radiators hence the smaller size.
It used copper, which was about 3 times heavier, instead of aluminium.
View: https://www.youtube.com/watch?v=ImEpk1s-Vk0 (duration about 4 minutes into the link)
View: https://twitter.com/i/web/status/1407448574401581057
I asked about this issue on flugzeugforum.de and if the Germans ever managed to catch up but would not get a definite response.
One wonders how much faster German fighters would have gone when equipped with smaller (less draggy?) radiators.