M4 SHERMAN 'squirrel' radial engine irregular sound !!!

Continental R-975 C4 radial engine.

This year (2013) this sherman engine passed a large inspection and works more stably at low speed :)

[tSp]

I don't think I've ever seen anything that looks less like a squirrel.

[林振华-tv]

"We built too many radial engines, the planes won't use all of them. What shall will do?" " Jam them into tanks" "Brilliant!"

[terryfromsouthcarolina]

My dad was a tracked vehicle mechanic with the 4th Armored Division in WWII. He always told me about changing the radial engines and cleaning piles of spark plugs. He made it as far as Nancy and Metz before he got shelled bad and sent home.
Terry from South Carolina

[crispinjulius]

“Now we do not have the element of surprise. They will hear our Detroit motors long before we ever get inside that town.” - Oddball

[troutwarrior]

Commander (probably): "Alright men, You'll be fighting Tigers, Panthers, and all sorts of scary German stuff. You'll need the best tanks we have."
That one guy: "What's our tank called? The [insert big, scary, animal name]?"
Commander: "The Squirrel"

[PNWLeviathanFPV]

That has to be one of the quietest tank I’ve ever heard

[Cragified]

M4 was so tall because the engine is in the rear and the transmission is in the front. The drive line between the two has to pass underneath the turret bustle.

The fact that the M4 could be powered by a variety of power plants was a great strength. Also in the desert in Africa when the M4 was introduced the radial engine was a godsend. No radiators consuming limited water rations and the air the engine fan sucked in provided ventilation for the crew stuck in a metal box under the sun.

[Brams]

The sound of absolute reliability and mass production

[davidhardy]

From a former M60A1 tank guy, that looks like a nice tight track. These tanks must be well maintained.

[briancooper]

On the plus side, these radials were powerful, reliable, needed no water cooling system, often continued to operate even if one or two cylinders were damaged, and were reportedly easy to change out.

[GanjaClaus]

Sounds just like my morning toilet session after Taco Bell

[russellherberg]

Being a long-time helicopter pilot, I have to say that nothing beats the sound of a round (radial) engine!

[toastrecon]

Just imagining what it would have been like to be an 18 year old kid in one of those things, moving through France and Germany, just praying that you'd fight well and survive to make it home.

[MrSaemichlaus]

Good thing that guy walked ahead of it to warn people. I would've never heard it coming.

[joaquindgarza]

Carl: Hey guys, I stuck a cammed LS in the Sherman!
Everyone else: Goddammit Carl!

[enscroggs]

Radials always idle roughly. Watch the videos about WWII radial-powered fighters and you'll hear a similar sound. Since some of the cylinders are upside down (gravity working against fuel flow) and some are right-side up (gravity working in favor of fuel flow) a low RMPs there is always a tendency of rich mixtures in some cylinders and lean mixes in others. This evens out when the manifold pressure rises with higher RPMs.

[PHDarren]

Aircraft radial engine in a tank, that's why it almost stalls when the tank stops. Aircraft tend not to like stopping in flight as they have a gravity issue. So they like to keep moving.

[BloodShot]

Thanks for telling me to turn on my speakers, I've been going since 2005 without hearing anything. Didn't know why!

[MarcosElMalo]

It’s called Squirrel because it was good at hunting Nut-zis.

[GetsugaTensho]

Now that is some muscle car sound right there!