This strange creature was a tracked vehicle with six 106mm recoilless rifles all pointing in one direction. It is worth looking up as a curio - the military equivalent of a platypus.
Climbed inside an Ontos once. I’m 6’2” and that was a cramped little sucker.
Ontos - Think of a ‘lowered’ Bobcat skid-steer with armor plate and a 283 Chevy V-8.
Six 106 recoil-less rifles, each with its own .50 cal spotter rifle bore-sighted and loaded with a WP-Tracer with identical ballistics to the 106 round.
These 106s could be loaded with HEAT (High Explosive Anti-Tank), HE, Hep-T, Flechettes (’Beehive’ - so called for the buzzing sound these hundreds of mini-darts made).
Very accurate! We watched an Ontos and an M-48 tank have a shooting match at a tree. The Ontos won handily!
Very thin armor. Light weight (compared to a tank), able to go places a tank would bog down. Pick a ‘hull defilade’ firing position, shoot-n-scoot!
Lots of firepower in a small package!