During the Viet War there were 17 Patton tanks per company: Three platoons at 5 Pattons apiece and 2 M48s in HQs Platoon.
The US Army tank platoon in Vietnam held 5 Patton tanks. 3 tanks were called the heavy section, and the remaining two tanks were called the light section. After the VN war the US Army changed to something more closer to the metric system; 4 tank platoons.
During the Vietnam War, US Army "Armor" Battalions (Tank Battalions) consisted of approximately 53 to 57 M-48 Patton tanks. 17 tanks per company; three companies per battalion, with two or more tanks in HQ Company. Armored Cavalry Squadrons consisted of approximately 27 to 30 tanks (Patton and later Sheridan tanks). Basic rule of thumb is two or more battalions made up a brigade, two or more brigades made up a division, and two or more divisions made up a corps. AFTER the Vietnam War, the US Army switched from a 5 tank platoon/17 tank company to a more "metric" orientated organization...along with the new 9mm service pistol (which replaced the Army .45). As of 2011, the US Army and US Marine Corps have a total of about 4500 M1A1 and M1A2 tanks in service, with approximately the same number of M1 tanks in storage. The US Army operates about 80% of the total US tanks.
During the Vietnam War, US Army & Marine tank battalions consisted of 57 to 58 Patton medium tanks. US Armored Cavalry Squadrons in Vietnam consisted of about 27 Pattons per Troop, then switched to M551 Sheridans in 1969; again, 27 tanks per Troop (company), only Sheridans instead of Patton tanks. Roughly 81 Sheridans per squadron.
Caterpillar built the first tanks for the U.S. Military. Ford Motor Company was the first automobile manufacture to build a tank for the U.S. Military.
When US Army M2/M3 Stuart light tanks counter-attacked Japanese forces in Corregidor in 1942, they ran into tank traps: a barricaded road which channeled the US light tanks into a specific area (zone) which was zeroed in with 37mm anti-tank guns. When the US Stuart tanks took that route, they would be hammered by those anti-tank guns. That was one form of a tank trap.
Both USMC and US Army tank battalion in Vietnam had 57 to 58 Patton tanks per battalion. 17 Pattons per company (5 per platoon, 2 in headquarters platoon).
I'm thinking most tank crew is 3 or 4. Driver, Gunner, Commander, Loader.
During the Vietnam War US Army & US Marine Corps tank battalions consisted of about 57 M48A3 Patton tanks (sometimes 58 tanks). The M48 Patton was technically called the M48 90mm Gun Tank. 3 line companies of 17 Pattons per company, 3 platoons consisting of 5 Pattons per platoon. The remaining 2 tanks were in Headquarters Platoon (the captain & XO's tanks). The remaining 6 or 7 Pattons were in HHC company (Headquarters and Headquarters Company). That took care of the tanks, then there were M113 Scout vehicles (Armored Personnel Carriers/Armored Cavalry Assault Vehicles), M125 Mortar Tracks, Medic Tracks, Maintenance Tracks, all being modified M113s. Plus about four M88 VTR (Vehicle Tracked Retrievers), and 1/4 tons (jeeps). ALL OF THESE WERE IN HHC company. The whole tank battalion consisted of about 600 men; less than half of whom were tank crewmen.
WWII thru Vietnam was 5 tanks per platoon. 3 tanks led by the LT was the heavy section, 2 tanks led by the platoon sergeant was the light section. After Vietnam, everything changed.
Most US cars have 12 gallon tanks, which is equivalent to about 45.42 litres.
The "tank battalion" is no more. In the new modular heavy division (which contains three minidivisions called Brigade Combat Teams), there are two Combined Arms Battalions per BCT. Each CAB contains two mechanized infantry companies running M-2 Bradley Infantry Fighting Vehicles and two Armor companies running M-1 Abrams tanks. Each armor company has fourteen tanks in it...so, a Combined Arms Battalion contains 28 tanks.
The best tanks are the "blooded" ones. 1. WWI's best tank was the British Mark series. 2. WWII's best tank is a toss up between the Soviet (Russian) T-34 and the US M4, both were medium tanks. 3. Korean War's best tank was the US M46 Patton (a modified Pershing M26 medium tank). 4. Vietnam War's best tank was the US M48 Patton medium tank; the last of the Patton series of tanks. 5. Post Viet War's best tank is the battle proven M1 Abrams.