Ontos, officially the Rifle, Multiple 106 mm, Selfpropelled, M50, was a U.S. light armored tracked antitank vehicle developed in the 1950s.
It mounted six 106 mm manually loaded M40 recoilless rifles as its main armament, which could be fired in rapid succession against single targets to guarantee a kill. Although the actual caliber of the main guns was 105 mm it was designated 106 mm to prevent confusion with the ammunition for the 105 mm M27 recoilless rifle, which the M40 replaced.
It was produced in limited numbers for the U.S. Marines after the U.S. Army cancelled the project. The Marines consistently reported excellent results when they used the Ontos for direct fire support against infantry in numerous battles and operations during the Vietnam War. The American stock of Ontos was largely expended towards the end of the conflict and the Ontos was removed from service in 1969.
The Ontos (Greek for "thing") project was created to be an air transportable tank destroyer capable of being lifted by the cargo aircraft of the 1950s. This limited the vehicle to a weight between 10 and 20 metric tons. The Ontos also had to use the sixcylinder engine then widely used in the Army's GMC trucks. AllisChalmers was awarded a contract on August 12, 1955, for 297 vehicles.
AllisChalmers' first vehicle, completed in 1952, was based on the running gear of the M56 Scorpion light antitank vehicle. The vehicle mounted a cast steel turret with two arms holding three rifles each. This early model could traverse the turret only about 15 degrees. A second prototype used a new suspension system, new tracks, and a newer turret with about 40 degrees traverse. The vehicle could carry only eighteen rounds for the main guns inside the vehicle due to limited space. Four of the recoilless rifles also had .50 BAT (12.7x77mm) M8C spotting rifles attached, each of which fired a tracer round with the same trajectory as the 106 mm round, and that gave off a flash and puff of white smoke on impact. The spotting rifles were used to line up the 106 mm recoilless rifles with the target. The Ontos also carried a single .30 caliber M1919A4 machine gun for antiinfantry use.
The vehicle was taken to the Aberdeen Proving Ground where single rifles had been tested earlier. When all six weapons were fired at once, the back blast from the firing knocked bricks out of a nearby building and knocked the rear windows out of several cars. The prototype and testing stage was completed by 1955, at which point the Army canceled its order.
As an antitank vehicle the Ontos had several problems, including a small ammunition load, a very high profile for such a small vehicle, and the need for the crew to exit the vehicle in order to reload the guns, exposing them to enemy fire. Although the Army canceled their order, the Marine Corps were desperate for any antitank vehicles they could get, and ordered 297. Production ran from 1955 through 1957. The Marine Corps accepted its first vehicle on 31 October 1956.
Hope you enjoy!!
Want to support my channel? Check out my Patreon Donation page! https://www.patreon.com/user?u=3081754
Matt’s DREAM: https://www.gofundme.com/f/matt039sc...
Check out my Merch: https://teespring.com/stores/matsimus...
Wanna send me something? My PO Box: Matthew James 210A 12A Street N Suite
#135 Lethbridge Alberta Canada T1H2J
Twitch: / matsimus_9033
DISCORD: / discord
Facebook: https://www.facebook.com/profile.php?...
Twitter: / matsimusgaming
⛔ (DISCLAIMER: This video is for informative and entertainment purposes only. The views and opinion come from personal experience and not that of others or other organizations. This content and information is there to provide information from public accessible sources.)
M50 'Ontos' Light Antitank Vehicle RECOILLESS TANK DESTROYER