N3N inertia start

Radial engine start

[@singleproppilot]

At least they put the crank handle seven feet off the ground where it’s easy to reach.

[@windsofmarchjourneyperrytr2823]

That's funny.

[@thereaper8593]

They had to keep it close to the guans blender

[@jimm3093]

They could have put it at balls level so that if you forget to remove the crank, you won't do that ever again

[@brianward7550]

@@jimm3093 🤣🤣🤣

[@suncountryairline]

When you do a KZbin search for inertia start there are very few of them. Nice vid!

[@cobrarebel29]

Now I know where the Tasmanian devil spinning sound comes from.

[@robbydolson2973]

That is the coolest sound I believe I have ever heard !

[@phaedrus44]

Sounds awesome and works great! A flywheel is a wonderful way to store energy.

[@kennethnewton9132]

It's a spring almost like what's in. Clock

[@mikegoodman447]

That was one of the best cranking sounds I have heard, Thanks for showing it!

[@vector6977]

Mike Goodman taz approves.

[@Avetho]

@@vector6977 I'd be the Millennium Falcon doesn't though, since this plane started and that spaceship didn't XD

[@nathanfrancis8957]

when he engaged the stater, that's where star wars got the sound for when the millennium falcon won't jump to light speed

[@LordSandwichII]

I want this to be the way I start my car.

[@Avetho]

Its friggin awesome I tell you hwat :P For engines that are in the range of a car engine, averaging a tenth or a ninth of the displacement and/or inertial mass, the inertia starter would be maybe almost ten times heavier than the tiny lightweight starter motor? Its far too expensive to include as vehicle mechanical bulletproofing though, don't want cars to last too long eh? Otherwise nobody would buy new cars to feed money into the industry XD

[@patrickshaw8595]

kzbin.info/www/bejne/b4KmlYN_Z5etY68

[@tetrabromobisphenol]

For once an inertia start video with an actual inertia starter.

[@scopex2749]

It plays sheet music in some models as you crank it!😊

[@michaelo1929]

It's Taz!

[@happydappyman]

What a great sound. Used in movies like starwars (millennium falcon). Also they really do "crank it"

[@Xelmon]

About as clean as they get, awesome start sir!

[@rickzitarosa]

Great stuff! (And they were doing this on front-line combat aircraft into 1942!)

[@42lookc]

There must be a wicked amount of wear on the clutch from such a high RPM flywheel to a zero RPM engine!

[@TheWolfiet]

its a "high wear" component that gets maintenance often, we had a crop duster with a starter of this sort.

[@jaek_898]

@@TheWolfiet how many starts on average before it needed to get adjusted/replaced?

[@TheWolfiet]

@@jaek_898 hard to say, generally you just didn't worry about it unless it started slipping much like a clutch in a car transmission.

[@arachnenet2244]

that sound!!! Love it!

[@tyronemarcucci6991]

N3N3 built by the US NAVAL Aircraft Factory in Philidelphia.

[@daviddollar9006]

Inertia starters were on the 7.5 ton trucks in ww2 also electric starters.

[@ronaldmendez4112]

Love the entire sound.

[@p61guy]

Thanks for posting.

[@danielthrasher7052]

Would be nice to have a starter like that on a car are truck for when the battery is dead.

[@cfrefrigeracao7320]

Show

[@kennethnewton9132]

She's beautiful

[@FlyNAA]

Aww jeez, my gut shrank when it turned out the engagement control was there too, and he had to stand there as it starts

[@patrickshaw8595]

Not too bad - have you ever seen a chain of men grabbing a propeller blade and running to crank a 3500 hp radial aircraft engine ? I have. Near-suicidal. Only guys without children were permitted to be the last guy in the chain in case he got sucked into the prop.

[@RedTedsRoadShow]

Did your men deactivate the hyperdrive on the Millennium Falcon?

[@brennenfitzgerald]

RomeoPapaCharlie No lightspeed?

[@johngnang6724]

No other sound like that

[@blackswampaviation]

Have any more videos of that n3n?

[@pieterpretorius1014]

is that on a Stearman?

[@FlywithMagnar]

Hi, van I use your video in a video I'm making about the Boeing Model 100 (P-12)? I want to show how the inertia starter works. You will be given full credit.

[@bunnythekid]

I need one

[@paulmurphy42]

Two questions: 1/ What is it he touches at 0:59? External magneto switches? What's the exact name for it? 2/ Is it possible on this engine to start by hand swinging the propeller, or do you have to use the crank handle? Many thanks.

[@singleproppilot]

The control he touches behind the crank handle engages the starter clutch which cranks the engine. What you don’t see because it’s off screen is that there has to be someone in the cockpit operating the magneto switches and throttle. Hand propping is technically possible but not really practical on an engine this large. That’s why they saw fit to include an inertia starter. It’s easier and much safer.

[@paulmurphy42]

@@singleproppilot Excellent answer, thanks! But what's the formal name for it?

[@singleproppilot]

@@paulmurphy42 I honestly don’t know. Nomenclature varies so much from airplane to airplane, it’s hard to keep it all straight.

[@paulmurphy42]

@@singleproppilot Ok, fair enough, thanks for trying!

[@patrickshaw8595]

@@singleproppilot I have solo-cranked R-1830 Pratt Whitney engines as part of a three man team, and R-3350 once as part of a five man team. I could still prop a an R985 and when I was 25 could prop an R1340. Solo.

[@paulmurphy42]

What is the biggest aircraft that anyone knows of that can be started by a mechanic turning a cranking handle in the side of the engine like the one in this clip? Any really big four engined aircraft? If so, which?

[@singleproppilot]

I don’t know about cranking by hand, but there were a number of large aircraft that used electric inertia starters. The Boeing B-29 Super Fortress is one example. So instead of some poor sap having to go spin up this heavy weight by cranking a handle, an electric motor did the cranking, then the clutch would engage and spin the engine just like you see here. In the B-29’s case, power to spin the electric inertia starters came from an Auxiliary Power Unit (APU). The B-29 was the first airplane to have an APU.

[@paulmurphy42]

@@singleproppilot Many thanks, can anyone else add anything?

[@patrickshaw8595]

@@paulmurphy42 Yes I worked for Braniff Airlines and many times four or five of us would join hands and - biggest guy first, littlest guy grabbing the prop - we would all run and pull sideways (from starboard to port) on the bottom prop blade. Probably 30 times from 1951 to 1964 we had to hand-prop R-2000s on DC-4's. R-2800s on DC-6s, and R-3350 Turbo Compounds on DC-7Cs. Usually just two big guys would pull it through with the mags cold during priming (the "suck-in" phase) but anytime the mags were hot it was the whole chain at a dead run to so that in case it started we would be away from it and the hand-joining was to prevent Shorty from being sucked back in to the prop-arc. Once we got one engine to run it's generator would eventually charge up the ship's 32 volt battery bank enough to electrically start the next and so on. Hurry up and ask me any other questions because I am 92, capiche ?

[@paulmurphy42]

@@patrickshaw8595 Wow, that's a great answer Patrick, thanks! I didn't think any team had ever hand propped a DC7! But what do you think is the biggest engine/aircraft that could be hand propped by one man alone?

[@patrickshaw8595]

When I was young and wiry I hand-propped an R-1830 Pratt mounted in a test cell solo once. That was at aircraft mechanic's school on a bet. The 3-bladed prop lost a blade a few seconds after startup and it disappeared. Running pretty good power with only two blades the prop hub's center was describing about a 20 inch circle despite being solidly mounted to about a 5 ton concrete block. I didn't know which way to run and I'm told I did a deer in the headlights impression. The nose casing for the gear reduction and whatnot broke off and the entire thing also took off straight up (thank you Jesus) and landed about 25 seconds later a quarter mile away in a huge parking lot with a clang.

[@missiontent111]

Sort of like sex really ......