CK16, on 21 February 2016 - 11:08 AM, said:
I usually look at for armored vehicles as well for official production date, The M60(A0) went from concept to testing to production with in a very short time frame, like 18 months (don't have exact dates off top of my head here). I look at this real world example though as a good reference as well to compare with the Madcat Mk.II. The M60 was an improved an up gunned M48 pretty much with a few other changes like switching from Gas to Diesel , up to date FCS and sights ect. But it was perfected pretty quickly and started production in 1959. So I still think they could have had a few functional Madcat MK.II's in 3061/2 specially in Clan service hidden from the Inner Sphere houses.
"The
M60 Patton is a main battle tank (MBT) introduced in December 1960."
"In 1957, plans were laid in the US for a universal or all purpose tank. Fulfilling this requirement with an interim tank resulted in the M60 series, which largely resembles the M48 it was based on, but has significant differences."
"Originally designated the XM60, the new vehicle was put into production in 1959, standardized as the 105 mm Gun Full Tracked Combat Tank M60 on 16 March 1959, and entered service in 1960."
It's the same thing as before - there is a delay between stages (drawing board, to prototype, to production, to becoming operational/entering service) - the M60 was put into production in 1959 (two years after the US Army put out the call), but did not enter service (e.g. delivery to the troops) until late 1960.
Though, interestingly, there seems to have been an update to MUL, as it now lists the
Mad Cat Mk.II as being introduced in 3062 rather than the original 3066 date.
(Then again, it's also listed as a brawler-type 'Mech, even though its primary weapons are Gauss Rifles & LRM launchers...

)