With ammunition and projectile development a project of the late Gerald Bull's Space Research Corporation in Canada, also developing the 105mm tank *STUP* projectiles at the same time. They're now a common training ammunition for use on Canada's restricted-firing tank ranges, but have been considered by the Israelis and others as an APC and light vehicle-killing round as well. And of course the Germans and Canadians have contributed greatly to the development of the late-generation German Leopard I design, as per the current Canadian Army C2 versions. The 105mm L/68 guns, as fitted on the Leo Is, German C1s and C2s and the Israeli Magach 6 through 7C series, aren't quite silent yet.
The BOLO electrical quadruple traction motor final drive [front and rear drive sprockets on both sides] offered both redundancy and sufficient power to pull the 85-ton prototype, expected to hit a possible 100 tons in a final version. Even the test bed vehicle [203mm/ 8-inch gun mount fitted in the engine compartment of a VERY modified M60 chassis, as per some WWII SP artillery] was probably beyond the realm of air transportability.
I believe some of the BOLO project design team also had a hand in a possible alternate to the miserable M247 DIVADS *Sergeant York* [later renamed Davy Crockett after the York family went public with their complaint that the less-than-accurate AA weapon was an insult to their family name] twin 40-mm AA weapon flopped miserably, the alternate design being nicknamed [not official so far as I know] *Skunk*. It mounted the GAU-8/A 30mm cannon of the A10 Warthog in a custom turret mounted on an M48 chassis. But those systems were only as good as their radars and fire control, and the M247's failure gave us a good idea what that was all about. Which came first, deponent knoweth not.
One of the M247 prototypes is tucked away at the Aberdeen Proving Ground museum, hidden behind some buildings and draped with tarp. Wouldn't want anyone to see it, and remember...
