Originally Posted by
Vendee
Not really. He probably meant that the F3 had a larger oil capacity than the GR1 with its original Mk 101 engines and he would have been correct in that respect.
Possibly.
I cannot remember the exact oil tank capacities but they were quite similar.
The 101 engine had an oil tank that conformed to the LP Compressor Casing. But it was not 'all attitude'.
So the 103 oil tank was circular in section to allow all attitude operation.
As a result I don't think there was much difference between the two capacities.
As I mentioned it was primarily down to oil system improvements that allowed significantly longer flight times.