M247 Sergeant York

Its as derpy as it looks

Really? We're really doing this? Fine.

The M247 is a SPAAG (Self-Propelled Anti-Air Gun) developed by the US Army as part of the DIVAD (DIVision Air Defense) Program. In theory, the M247 was going to replace the M163 VADS as the US Army's primary self propelled Anti-Air platform, but theories are such fragile things.

The M247 is armed with twin 40MM Bofors AA gun linked to an innovative search and track radar system in a friggin' massive turret balanced on top of a M48 chassis.

In Team Yankee

The Stats (from Bizzaro world)

In the Team Yankee Universe, apparently the M247 didn't turn out to be a dismal failure and in fact was well on its way to replacing the M163.

IRL

One of the very few surviving examples

Where to start with this thing?

The M247 Sergeant York was developed by Ford Aerospace (A company that is better known for making cars rather than AA platforms, this story doesn't get much better from here guys) in response to a US Army request for a Self Propelled AA gun that could keep up with the M1 Abrams and M2 Bradley at cruising speed. However, this new SPAAG had to be mounted on a M48 Chassis and use as many off the shelf parts as possible to keep R&D costs low.

The Army was particularly concerned about the threat of Anti Tank missile equipped enemy helicopters using "Pop-Up" tactics, where a helicopter hides behind terrain features to conceal it from AA fire, then pops up for just long enough to loose a missile, then ducks back into relative safety. The SPAAG the army was at the time using, the M163 VADS, could not pick up nor engage a helicopter before a missile was inbound, a problem the soviets definitely were not having with their ZSU 23-4 Shilka.

Ford Aerospace soon came back with the prototype for the M247. Their design was armed with the iconic 40mm Bofors AA gun linked to a search and targeting system derived from the radar equipment mounted on the F-16 Falcon. After beating out an (arguably superior) design from General Dynamics. The M247 was aproved for production and dubbed the "Sergeant York" after Alvin York, a hero of the Great War.

Here's where it gets interesting. The Army decided that it was high time to show off their shiny new toy and put together a demonstration in 1982, inviting VIPs, high ranking Brass and the press to come and see. With everybody expectantly waiting, a target drone was launched and the radar was activated. Immediately the M247 swung its turret toward the grand stand, confirmed target lock, and cheerfully requested permission to fire.

After the resulting stampede of influential persons trying to get out of the line of fire was calmed down, it was determined that a glitch in the radar system was responsible for the dangerous error. A radar glitch that was caused, according to the representatives of Ford Aerospace, by the M247 being washed prior to the demonstration, to which a member of the press responded, "Don't they know that it tends to rain in Europe?"

The radar system was the bane of the M247. While it was a great system, in a plane in the sky, it just did not work on the ground

Presumable the Reason the York shows up is that the project was canceled the same year the Cold War goes hot: 1985. As the M163 VADS was always suppose to be a stop gap after the MIM 46 Mauler was canceled, the logic might have been they needed to get some kind of heavy SPAAG onto field: ASAP, the Duster being based on a light tank would have lacked in armor, while the York was suppose to advance with the tanks like the Commie ZSU 23-4 Shilka it was built to match. Hence why the York appears.