Super Hellcat 90mm
Installing a M36 turret on the M18 dwarfed the small chassis of the M18, but no major technical problems arose from the conversion.However,when the 90mm gun was fired,the recoil caused the M18 to move backwards almost 2 feet.When fired to the side,the M18 rocked violently, much worse than fired to the front.Fitting a muzzle brake reduced this recoil problem.
This is a companion discussion topic for the original entry at https://ww2incolor.com/gallery/us-armor-vehicles/51617/super-hellcat-90mm