A400m
At twice the SHP of the Tyne, with an 8 blade prop 18" larger in diameter, I assume you envisage a twin installation? The Guppy inboard prop ground clearance (loaded) is only abot 15"
It would certainly shift more than the envisaged 9 pallets/120 troops planned for the A400m, but it would look like a bloody great Budgie.