My dad was a stoker on HMMLs during WW,2 these engines are what sent him hard of hearing.He is now serving in that engine room in the sky "wynd em up dad"!
These were period correct for WW2, Unfortunately those Hall Scott V12 didn't have the kind of power the Navy wanted to power it's PT boats! Hall Scott V12 produced 650hp, Packard V12 -1000hp! On a practical level would have been a PT boat fitted with 4 X Hall Scott V12 vs 3x Packard V12! The trade-off would have been the Hall Scott V12 could run on low Octane gasoline vs the Packard V12 were aircraft engine's and needed aircraft grade gas! Also the Hall Scott V12 were half the cost and twice the durability!
The Packard V12 Marine engine was not also an aircraft engine. Packard did build the Rolls Royce Merlin V12 under licence which looked very similar but was smaller in overall dimensions.
@@dartskipper3170 The Packard M2500 was a purpose designed PT Boat engine basically using the pistons and Crank from their A2500, a completely different engine. the M2500 PT Boat engine was supercharged and had NOTHING to do or look like a Merlin. Merlin was only 1650 Cu In displacement The M2500 Packard PT Boat engine was 2500 cu in displacement or 50% Larger, and the M2500 was being delivered to the us navy in 1938, Packard ran its first Merlin a V1650-1 in Aug of 1941 with production starting in 1942 FOR THE BRITS !!! Why Packard was contracted with to build the merlin. IF you have ever seen either engine they look NOTHING like each other, The Packard M2500 had the bold wording PACKARD stamped into the valve covers, the Packard built Merlins had a PLAIN stamped steel valve cover !!! Facts of History less the hype, lies, and Bull$hit !!!
@@wilburfinnigan2142Exactly. You didn't read my post correctly. I know the difference between the marine and licence built aircraft engines. I've been pointing it out for years on British forums. Some of the confusion has been the result of the British Power Boat Company marinising Rolls Royce V12 aero engines for their early MTB/ MGB designs. The owner of the company, Hubert Scott Paine, discovered the physically larger Packard engine when he visited the States to promote his boat designs. ( Elco took his basic hull form lines for their PT boats.) The Packard Marine V12's were supplied under the terms of the Lease/ Lend contract to Power British Power Boat and Vosper MTB's, MGB's, and the larger Fairmile D MTB/MGB which required 4 engines per boat. After the war, most Packard marine motors were returned to the USA. Packard got the contract to build the Rolls Royce Merlin aero engine because Henry Ford refused it. OK? Happy now?
@@alexandercurtis4427 Heard about that one, one of the only (if not THE only) applications of a Hall-Scott V12 in an OTR truck. Seen a fair few big HS sixes in classic trucks, especially fire apparatus, but if there are any more V12s mounted up to trucks then I have yet to see them.
