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Terrific movie / documentary, even with its curious, nostalgic, romantic music of the era … playing amidst powerful beauty and destruction. The genius of Sir De Haviland & Co. … and its heroic builders, crews A N D pilots! 👍 B I G thanks for this video!

I’m assuming it wound up a big clock type spring to start the motor ??

Besides his "women" comment, he also obviously doesn't know what 6 inches is.

Omg the slapping of your lips is fucking unbearable

I can almost hear the long fiber grease hiss as he turned the mechanism.

What a twat for saying "even women" If it wasnt for the "unskilled women, and guys" back in the late 30's - 45 we would be talking German know

2:17 Chuck Norris mode begins.

Yeah, You're Lucky To Have That! Was It Used As A Backup? For What It's Worth, Women Kept The Lathes Turning While The Men Were Away. Foyle's War - 'Bleak Midwinter' Thank You.

I think the Mosquito had 2 of the same engine that powered the Spitfire. The Spitfire had a port on one side where the ground crew would insert a crank handle to start the engine, as an alternative means to the electric start.

so???? this is where Utubers get the idea that annoying background music is a good thing????

How dumb is that?

Well at least a woman would slap her chops less and sound more interesting.

Unskilled women? Utter waffle. They were highly trained and took great pride in their work.

How come we never seen them on Spitfires and Mustangs.?????

The is the gearbox that was mounted above the electric starter on some Merlins. It provided an alternative, hand start capability. Hand starting was achieved by using the gearbox to spin up a heavy mass to high speed and then use it's inertia to turn the engine over, via a clutch mechanism. The smooth, turned 'knob' on the end of the shaft isn't original. It should have a part with a transverse pin for a removeable handle to attach to. Shame about the blatent mysogyny

So how did the thing work? Planetary and complex and clever, compact, didn't weigh much, all very impressive. Large reduction ratio ~ 80 or something to one. Now how do you start a 27 litre supercharged engine with that? By 'hand'?

I don't think the fact that women made that made is it any less functional than if it was made by men. The whole idea of mass production was to make make endless replicas of something of which all parts were interchangeable with the next. Unlike conventional British manufacturing at the time where gears planetary sets were made for a single unit and we're not interchangeable.

Let me say this. I don’t think I could build that or come up with the idea. So I would consider myself unskilled, and I’m a guy. But it is pretty ingenious. Furthermore I have been taught mechanics and have never witnessed anything like it. I guess I have something to learn yet.

And women at that. Wow. Suggesting women couldn't have the skill when they clearly did.

The production method was used in the automotive industry for at least 15 years before WW2. It was applied to war time production because the volume was just like automotive manufacturing. The gear set is an epicyclic gear train that was used for many applications even then but later in the 1950's it formed the main gear sets for the majority of automatic transmissions and is still used today for that.

A plausible con trick to see who falls for it before it is uncovered as a ruse.

It probably has a Sprague clutch, or similar "one-way" mechanism, otherwise it would be spinning thousands of RPM when the engine was running, and, to prevent the starting handle from killing the mechanic when the engine turned over!!

"and women, at that..". God, man, I'm an old fart, too, but I'd never say that! Women can do anything that men can do, unless it's a brawn over brain "thing", and certainly did all sorts during WW II !

Just another typical arrogant British SNOB talking through his 🫏 !! 😭😭😭😭😭😭😭

1:30 80:1 or 18:1?

@ 1:38 made by unskilled workers. Couldn't walk, couldn't talk, couldn't speak, had no thumbs and fingers, ate cockroaches and thought there was a god. Pharq there's some bullshit here on the toooob.

Why don't you say anything about the mysterious hand starting of the engine?

I want to know more about how it was mounted, cranked and, connected to the engine for starting.

Is that a full sized or a dmall model

Why not explaining how it did work?? I assume that you didn't just turn the knob with two fingers and then the Merlin started? 🤔🤔🤣

That would not start any engine! That's 80 hand cranks for just 1 turn of the engine! I've just timed myself simulating that and I managed about 22 turns in 5 seconds. So that equates to about 20 seconds for one revolution. Way too slow to start ANY ENGINE!

"And women at that." Women because they tend to be better at tricky intricate work!

I've got a weird ww11 airplane part, USA made that has about a 40-1 ratio, one side has a speedo square type cable maybe and the other a bnc type tube connection. 20+ years back when I got it the internet only showed one thing about it and I haven't looked since then

Still have no clue how it was used to start the engine... perhaps like Donald Pleasance in The Great Escape?

What a unique looking device!

🤔How are the two sets of planetary gear set connected I see they are turning at different rates.

Fine piece of engineering. 80:1 reduction gearing in a very small unit and congratulations to the women who made it. So how did it start a Merlin? The spindle looks to small to wrap a pull cord to start a 27 V12 like a lawnmower.

Cannot believe the ignorance of this person to belittle the men and women who got there hands dirty to help win the war.

Not unskilled. They had very specific skills. Maybe a bit limited. How many went on to become fully skilled craftsmen..

Planetary gears mess with my head.

that "...and women at that" comment gonna get him in trouble now-a-days...

This narrator puts me to sleep. Absolutely no color or sense of urgency, none.

Remember that it took a woman to make you! Geezer

Remember that it took a woman to make you! Geezer

"And women at that". Ugh! Disliked and won't be subscribed to either.

I wouldn't say they were unskilled!

Excellent video

"And women at that" dude is super based!

Grandi,grandi,grandi. Finalmente qualcuno che spiega come si avviano questi motori 👍👍👍👍👍👍👍👍

Any video shooting at MIR or DJE