seajet tanks
Correct as usual !
The orignal FRS1 carried 100 gal drop tanks, but as soon as the Falklands started, an urgent mod' scheme ( probably already on a back-burner project ) was put into effect to convert the tanks to 190 gals - these were made up feverishly night & day & sent down south.
There is some doubt the modified tanks reached the Seajets before it was all over.
Suggest you try a search engine & put in the aircraft name, UK, & you'll get more data than you can possibly want.
In peace-time non-taking things to risky levels test flights, 45 mins was about average, though one thing to bear in mind is that due to the nature of the Pegasus, one can to an extent hang any stores or ask almost full throttle, and fuel consumption doesn't vary as much as other aircraft - it just guzzles along ignoring drag anyway !
That's as I understand it - please correct me if I'm wrong as usual and you're reading this, John !