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Jay Leno’s Garage—Merlin Aircraft Engine

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February 09, 2019, 10:40 AM
TMats
Jay Leno’s Garage—Merlin Aircraft Engine
I love this sort of thing, and I believe lots of members here do as well. Leno acquired a Packard-built RR Merlin aircraft engine. He had it restored to its full glory as a demonstration engine. He explains in detail how it works and then lights it up.




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despite them
February 09, 2019, 11:17 AM
Ronin1069
Wow.


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February 09, 2019, 12:01 PM
BBMW
He needs to find a P-51 to wrap around it.
February 09, 2019, 12:19 PM
apf383
Jay is the man.



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February 09, 2019, 01:03 PM
medic451
quote:
Originally posted by BBMW:
He needs to find a P-51 to wrap around it.

Wrong Merlin, Jays is a -1 which was used in the P40 Kittyhawk.



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February 09, 2019, 01:37 PM
TMats
quote:
Originally posted by medic451:
quote:
Originally posted by BBMW:
He needs to find a P-51 to wrap around it.

Wrong Merlin, Jays is a -1 which was used in the P40 Kittyhawk.

Didn’t know that; I thought they were all Allisons


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despite them
February 09, 2019, 02:03 PM
RAMIUS
Working for him must be a dream job for a mechanic.
February 09, 2019, 02:55 PM
sandman76
Jay has all the coolest toys.


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February 09, 2019, 03:05 PM
Johnny 3eagles
Jay has all the coolest $$$.



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February 09, 2019, 03:07 PM
gearhounds
Very cool- ol Jay really has a passion pretty much unmatched. Good lord, to take a ride in that Lancaster at 9:30. What a thrill that would be




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February 09, 2019, 03:09 PM
Jimbo54
I think the coolest sound I've ever heard was the sound of Merlin and Allison V-12's in the Unlimited Hydroplanes of the early 60's. Hearing 8 of those things on the front straight at full throttle is a full body experience. By that I mean that you felt them clear down to your bones as well as a full scale assault on your eardrums. Those were the days!

Jim


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February 09, 2019, 06:26 PM
Gene Hillman
quote:
Packard-built RR Merlin aircraft

I know very little about that particular engine but Jay mentions 4000 R.P.M. which seems awfully high for a WWII combat aircraft engine.
February 09, 2019, 10:06 PM
jhe888
A Merlin sounds great, but a Double Wasp is where its at.




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February 09, 2019, 10:50 PM
sigspecops
I've got this old truck that needs an engine, I wonder if a person could...


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February 10, 2019, 12:26 AM
Jelly
Thanks for posting really enjoyed it.


quote:
Originally posted by Jimbo54:
I think the coolest sound I've ever heard was the sound of Merlin and Allison V-12's in the Unlimited Hydroplanes of the early 60's. Hearing 8 of those things on the front straight at full throttle is a full body experience. By that I mean that you felt them clear down to your bones as well as a full scale assault on your eardrums. Those were the days!

Jim
You got that right! The Thunderboats


February 10, 2019, 05:56 AM
Micropterus
quote:
Originally posted by TMats:
quote:
Originally posted by medic451:
quote:
Originally posted by BBMW:
He needs to find a P-51 to wrap around it.

Wrong Merlin, Jays is a -1 which was used in the P40 Kittyhawk.

Didn’t know that; I thought they were all Allisons


You can tell whether a P-40 has an Allison or a Merlin by whether or not it has a carb air intake scoop on the top of the engine cowling just behind the propellor. If it has a scoop, Allison. If not, Merlin.

Merlin


Allison



The Merlins used in P-40s did not have the same supercharger as those in P-51. In the P-40, the supercharger was 1 stage, 2 speed unit that gave the engine only slightly better high altitude performance over the Allison.


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February 10, 2019, 07:12 AM
tacfoley
Every single one of the Packard-built Merlin engines came in its serially-numbered crate with a serial-numbered jig and tool kit, every single part of which was serial-numbered to match the engine and everything else. A retired engineer of my acquaintance has such a set of tool on the walls of his man-cave.

He also has the engine that goes with it.

He also displays it a couple of times a year. He opines that the Packard-built engines were all totally interchangeable, whereas the Rolls-Royce engines needed an amount of hand-fettling to get things fitting properly.
February 10, 2019, 07:28 AM
PGT
Amazing. Jay's work post-latenight redeems him, IMHO
February 10, 2019, 08:08 AM
Mars_Attacks
One of the few who put their earned fortune to good use.

I admire Jay for it.


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February 10, 2019, 08:14 AM
ScreamingCockatoo
I know where one is sitting in front of a business.
Just sitting there.

Not many left after all the racers destroyed them.





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