[Graham Boak]

Air Arsenal North America, Phil Butler with Dan Hagedorn, states that the Mariner was found to have a shorter range and lower load-carrying capability than the Sunderland. Several engineering features were disliked, especially the lack of self-sealing tanks, some of them in the fuselage, which were thought to present too high a fire risk.

I remember that in one account of the missing Avengers in the "Bermuda Triangle" it was stated that a Mariner that went looking for them also failed to return, but that this type had a bad reputation in the USN for catching fire. Memory says that the nickname "Flying Ronson" was used, but I can't confirm that.