Starting to
restore some of my old threads ...
The Martin AM Mauler (originally BTM) was a shipboard attack aircraft of the United States Navy. Designed during World War II, the Mauler encountered production delays and did not enter service until March 1948. A total of 151 aircraft were built, remaining in front line service only until 1950, when the Navy standardized on the smaller and simpler Douglas AD Skyraider. Maulers remained in reserve squadrons until 1953. In service the Mauler earned the nickname "Able Mable" because of its remarkable load carrying ability, once lifting a 14,179 lb useful load, including 10,689 lbs of ordnance, easily the heaviest load ever carried by a single-engine piston-powered aircraft.
Design and development
In the 1930s and early 1940s, the Navy differentiated between two types of carrier-borne bomber: the torpedo bomber and the dive bomber. In 1943, this distinction was abandoned, and the US Navy invited proposals for a new multi-purpose bomber. In 1944, four new designs were offered as shipborne attack aircraft: the Curtiss XBTC-1/2, Douglas XBT2D-1, Kaiser-Fleetwings XBTK-1 and the Martin XBTM-1. Martin was tasked to provide a back-up to the Curtiss design which had been selected as a replacement to their SB2C Helldiver. Due to the US Navy's concern that the Curtiss design was overly complex and that the company's production record was particularly suspect in the Helldiver development phase, Martin was instructed to create an "unexperimental" design that would be a reliable platform for the Pratt & Whitney R-4360 Wasp Major that powered both aircraft. Two prototypes were ordered from Martin on 31 May 1944.
A Naval Air Reserve AM-1Q.
The first XBTM-1 flew on 26 August 1944, piloted by O.E. "Pat" Tibbs, Martin's Chief Test Pilot. The second prototype soon joined the fight test unit, followed up by 16 pre-production BTM Maulers. In 1946, the aircraft designation was changed to AM-1.
Photos & Text source, Duggy at Axis & Allied paintworks
Part 1

Martin Mauler AM-1's in Building V-60 of Overhaul and Repair at Naval Air Station NAS Norfolk

Martin Mauler cutaway

Martin Mauler XBTM

Martin Mauler XBTM

Martin Mauler XBTM
Last edited by
Mark Allen M on Tue Jun 07, 2016 2:23 pm, edited 2 times in total.