Has anyone ever put tthe engine to. other uses such as marine, aviation agricultural? ???
Yes to all if you count a tractor used in tractor pulls. The V12 was a favorite of the 3/4 scale WW2 warbird builds.[quote=“scrimbo, post:1, topic:350280, full:true”]
Has anyone ever put tthe engine to. other uses such as marine, aviation agricultural? ???
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Was it successful in boats
Was it successful in boats
Popular in offshore boat racing. For that application, it was reportedly
common to add a spacer between block and head that was the thickness of
one link of cam chain. Then assemble the engine with longer head studs,
longer cylinder liners, longer timing chain and a longer stroke crank. Using
this method, they’d build a 9-liter V12.
– Kirbert
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Jaguar or Allison? I’ve read of and seen on TV, the
latter in tractor pulls and in boats.
But, a vague recollection of a Jaguar V12, highly modified on the water.
Many of the Allisons found duty in the oil fields pumping water.
Carl
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kirby ,yes doable BUT very expensive, of course you cant beat CUBIC MONEY!
many mods to the block , like steel main bearing caps, some even mounted to the sides of crankcase.
a lot of stroker V12 would try to push the crank out of the bottom end ,but would still crack the factory caps open.
gotta love those ALLISON V12 engines!
these were the real business end!!.LOL.
carl, a shame to humiliate such an engine(pumping water)!
you are correct , just after the WW2, i delivered news papers on bycycle, and this machine shop on route, had out front of building a big wooden crate , one day going by they had the top off box, there it sat in all its glory, a new WAR SURPLUS V12 Allison !
absolutely magnificent piece of machinery, they also pulled the P-40s and the P-38s skyhigh!
yes,i think they used them a lot in Australia off shore race boats, some turbod.
…a new WAR SURPLUS V12 Allison !
absolutely magnificent piece of machinery, they also pulled the P-40s
and the P-38s
skyhigh!!
Got a bad rap during WWII, though. Early on it became clear that
supercharging or turbocharging would be necessary to provide power at
altitude, and any engine without it would get shot down. Rolls Royce
responded with an excellent 2-speed supercharger on its Merlin, making it
the envy of allies and axis alike. For the Allison, though, somebody made a
very poor decision to go with a turbocharger that wouldn’t fit in most
airplanes! It’s what rendered the P-40 obsolete shortly after the US entered
the war. It was a failure in the P-51 Mustang, resulting in the plane being
reengined with the Merlin, which made it the legendary fighter it became.
The P-38, with its twin booms, was one of the few planes the turbocharged
Allison would fit into, and its exploits became legendary. But when the Brits
tried to buy P-38’s from us, we’d only fit them with the non-turbo engines, so
the Brits sent them back to us in disgust.
Another fine example was the Bell Airacobra. Again, the turbocharger
wouldn’t fit in the plane, so the plane was shunned by all the allies – except
the Russians. The Russians were defending their homeland, so when
enemy fighters showed up, they’d stay down low where turbochargers
weren’t needed and wait for the Messerschmitts to come down to them.
Then they’d shoot them up something awful, because the Airacobra was an
awesome plane other than the lack of a turbocharger. Later, Bell rectified
that shortcoming by introducing the King Cobra, looked just like an Airacobra
but completely redesigned specifically to fit the turbocharged Allison.
Awesome plane, but saw little action before the war ended.
If you doubt the importance of a turbocharger, look at the layout of a
Thunderbolt. Radial engine, not an Allison. The air intake is in the chin, and
from there it’s directed the full length of the plane to behind the pilot! That’s
where the turbocharger resides. The air is compressed, sent back forward to
the engine. Then the exhaust from the engine is routed back past the pilot
again to power the turbocharger, and from there out the bottom of the plane
at the rear. The plumbing job for all that ductwork is incredible – but the
plane was a resounding success.
– Kirbert
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i read when USA sent P38s to GB they didnt like the turbo allison, so BRITS took the turbos off and of course the planes were under powered!
check out the performance of the P38s at the Pacific fronts, they were unbeatable!
fact is P38s shot down Naval General Yamamoto plane and changed the complete pacific war, after losing there TOP General/Admiral moral went down signifinatly.
true P40 was over the hill, when the P51s came along, somehow military politics didnt want the Allison V12, ended up with 1650 RR Merlins, with 2 stage puffers!
NOW advance to today, The unlimited HYDRO plane boats(not counting TURBINE engines).
after the war tests showed a properly turbod Allison 1710 would out run a Merlins.
merlins when pushed hi boost had weak connecting rods, so nowadays they use Allison rods in the Merlins, can handle much higher RPM/Torque.
course the UK guys dont believe it.LOL
one of my cars that has a remote mounted turbo, just in front of rear axle (not recommended for off road).
have made 10/12 PSI in the inlet manifold, goes good, NO smoke.
car 1982 OPEL coupe, it does have some lag ,but nothing i cant live with!!
there is a 3/4 scale P51, with Jag V12 in San Angelo TX, as of about a yr ago, great work and guy loves it!
while i’m on a turbo rant, here is a pic of an ALLISON 1710 with twin turbos, and absolutly how nuts some guys can get!
also check the motorcycle, howd yoyu like that between your legs,LOL ooh sh$t batman.
Seen one used in an aircraft but the was a gear reduction unit between it and the prop.
That’s nice scoot, but if you really want to be impressed, Google “Radial
engine bike”.
Mike Eck
New Jersey, USA
www.jaguarclock.com
'51 XK120 OTS, '62 3.8 MK2 MOD, '72 SIII E-Type 2+2
Seen one used in an aircraft but the was a gear reduction unit between
it and the prop.
The Rolls Royce Merlin, the Allison V-1710 and the Daimler-Benz 605
engines all had gear reduction to the prop. Engines like to turn faster than
propellers do.
– Kirbert
one of my cars that has a remote mounted turbo, just in front of rear
axle (not recommended for off road).…it does have some lag ,but nothing i cant live
with!!!
Is the lag blamed on the length of the pipes or just that the turbo itself takes
time to spool up? I’ve heard that the remote mounting doesn’t really add
noticeably to the turbo lag.
– Kirbert
while i’m on a turbo rant, here is a pic of an ALLISON 1710 with twin
turbos…
Honestly, don’t those turbos look a bit small for that engine? Or are there
two more on the other side?
– Kirbert
i read when USA sent P38s to GB they didnt like the turbo allison,
so BRITS took the turbos off and of course the planes were under
powered!
Looked it up on Wikipedia. Apparently the problem was that the Brits were
also ordering P-40’s and they wanted commonality in the engines – and of
course the turbo wouldn’t fit in a P-40. That not only meant their P-38’s had
no turbos, it also meant they didn’t have counterrotating props! Needless to
say, those planes were garbage, and the result was a contract dispute
between Lockheed and the Brits.
Supposedly the whole reason the P-51 exists is that the Brits wanted to buy
P-40’s but Curtiss was too busy building them for the US and couldn’t spare
any, so the Brits went to North American and asked if they could build them
P-40’s under license. NA responded that they could, but suggested instead
that they produce a whole new airplane using the same engine, the
non-turbo Allison. Look at a P-51A and you’ll see the resemblance to the
P-40, including the air intake at the top. Of course, the Brits eventually
figured out that the non-turbo Allison wouldn’t cut the mustard and switched
to the Rolls Royce Merlin as appears in the P-51D. The air intake on top is
gone, unnecessary with the Merlin.
– Kirbert