Sikorsky S-58 engine startup 

Hell I was ducking when they did a closer shot

Theo, fearless is a bit much, I've done the samething the mechanic is doing.

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@@baddonkey6876 l

He’s checking to make sure the transmission is still leaking.

Lots of space between the mechanic and the rotor blades

@rinehard Yeah, instant death

Nerves of steel! Up close and personal with the rotor head....sometimes there's no other way to inspect it.

@Bertie Bollocks So true. But do correct me if I am wrong please - isn't ground resonance something that skid mounted helicopetrs are more prone to than the wheel based ones such as this old Sikorsky ?

@@VMCAviationVideos there are until there isn't.

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Much bigger than any big block Chevy V8, it uses the same Pratt & Whitney radial as a DC3!

@@glennoropeza3545 It's a Wright Cyclone 9 cylinder

Haha

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😂😂😂😂😂😂😂nice comment

Glad you enjoyed

Thank You for the thumbs up!

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@@VMCAviationVideos 👍

Thanks for watching👍

What did he use them for?

@@VMCAviationVideos Helicopter logging down in the swamps, he was the owner of a logging company from 1976 to 1994. He had a paid crew working tht log landing and in tht swampy areas. The name of company was Helicopter Lumberjacks. It was a white S-58 piston powered helicopter with one this red and one thin red line around tht helicopter with tht company title and the logo on both sides of the tail boom. N8503J was the number. But he didn't own them both at one time, he would use the insurance coverage to make another purchase, his were Navy surplus, then he used tht insurance coverage to purchase the H-19, he had about four of them but not all at one time.

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Glad you enjoyed it

Haha, yes, and he still has his head.

You know it's a slim line between bravery and stupidity.

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Agreed. That must be why the banding was painted at different points on each of the tail rotor blades. The irregular pattern draws attention to itself while turning .

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It was a hot day😄

Welcome 👍

@@VMCAviationVideos Nice to meet you 😀

Interesting

@@VMCAviationVideossame thought🤔

Thanks

Not much, if they don't get too close.

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yes

Thanks!

Thanks

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What Grand Canyon???

@@VMCAviationVideos another plumbers crack joke

Thanks for watching the video!

Thanks

I love the look of the S58

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Correct

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Thanks for the highlight and nice ❤️! Don’t know you personally but love you- Always a lover of helos I enjoyed this incredible compilation and video- love u guys and gals please take care of yourselves during this Corvid horror- and when it’s over this summer let’s live as if it’s our last day loving one another with respect/ ok? I am a loyal subscriber now

Haha

Interesting, I noticed the bouncing tail wheel too

Disclaimer: No mechanic was hurt in the making of this video😄

Thank you very much!

Sure is

I worked on these, what do you mean by 2 speed gearbox? never heard of it. There is a simple clutch connecting engine and main gearbox. Looks just like a torque converter on a car. Defin

@@currentriver4951 every single video i have seen of these they have radial engine with 2 speed trans. you'll hear them start up, run 1st speed up, drop clutch, go to 2nd, then run 2nd speed up to operating rpm. for instance in this video from 2:23 to 2:53 it runs up, rpms drop, then another gear is selected, and rpms start climbing down low again and another run up of a gear. i will accept the fact that maybe it is a torque converter... but damn if that is true, it sounds sloppy as shit as how long it takes to switch between gears and the drop in RPM

@@ilovegoatsecks I definitely hear what you are saying, but ive also been in them during quick starts, and its just start and run up. Ill ask around to some of the old timers i worked with. It would be completely new for me to learn they had multi speed gear boxes. Sure as heck CH-53s didnt. Hearing them makes me miss flying on them, love them radials!!

@@ilovegoatsecks Sikorsky S58 Heli Rollout bei Meravo in Oedheim, RU-vid this vid, it shows start up that im more familiar with, he throttles up with clutch engaged, gets to 100% rotor speed then lets off throttle, thats all thats really happening

listen to a t model start, everything is identical except power plants

Thanks for the visit

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Haha, too funny👍

Haha, better than just 1 cm

Part of the job, it gets real exciting when u have to get up top and trouble shoot things

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Thanks!

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Thats sad☹️

Adjustments on the swash plate linkage?

Good question

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importantly, nothing went wrong

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I’m a very old Navy helo driver AND SAFETY OFFICER…😖…no way having a guy doing that!!

Haha 👍

I don't have the answer to that

Cars need multi speed gearbox primarily for a wide speed range. In a helicopter the rotors run at the same speed all the time it is operating so a gearbox is not needed to give a range of speeds. The clutch is engaged on the ground when the load on the rotors is lowest and never disengaged unless the engine fails. There is enough engine power at the point of clutch engagement to achieve this without stalling the engine.

There's a fluid coupling or torque converter between the engine and transmission that allows for engine startup and bringing rotors up to speed, once rotors are turning then the engine is idled down to allow the one way clutch to engage and then it is positive direct drive for flight.

The 58's are cheap to buy and operate. The cherry season is short and they are in a hangar for 10 out of 12 months a year.

​@@VMCAviationVideos Must be cheap. Looks like 6-7 parked at Brewster on google. Assume they use them to dry off cherries? Seen vids of a little R22 drying cherries. Waiting to see em PICKING cherries by Helo!! lol. Thx!

@@MililaniJag Haha, picking cherries by helicopter might be slightly difficult

@@VMCAviationVideos Sure it would include inverted flying! Cheers!!

@@MililaniJag Yes 😀

@stromsky58 make good hand and body warmers!!!

@stromsky58 Sound's to me we gotta remove those flame dampers then.

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Haha, yes👍

No

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Primitive, but i always felt safer in 1 of these, than their modern big brother the CH-53. Radial engines very very rarely just up and quit, will give lots of notice something is wrong, not so with jet/turbine engines.

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Ohh Yes!

Why Not😁

Maybe, I'm not sure

I realize there is some vibration but the tail is nearly coming off the ground. Cool video.

@@leerilea1709 Haha, yes, it's jumping pretty good

Well it's an old helicopter

@@bnghjtyu767 so? Lots of old helicopters dont shake like that. That kind of shaking tells me somethings out of balance

No idea, sorry.

Clutch is provided mainly to allow the engine to be disconnected in case of failure, which allows the rotors to keep spinning as they autorotate to a landing.

@@nzrailmaps thank you, makes sense.

I'm not sure but I think this is normal

No it is not normal, something is pretty bad out of balance, a little worse and it wouldnt be flight worthy to me.

current river so is it just the blades out of balance? Or can bent drive shaft do that? I don’t suppose it would last too long if the tail rotor driveshaft was bent.

@@56WagonWheel I've seen a tail rotor out of balance do that, but bounce is usually quicker. I really doubt bent shaft, it definitely wouldn't last long. It could also be a mount bearing for the driveshaft. If i was really looking i would concentrate on tail fold and airframe integrity, if everything else checked. We had a CH53D that bounced so bad, nobody would fly it, and we spent close to a year trying to find problem. Sometimes it's just them Gremlins!!

@stromsky58 i would say thats more than a bit

It's air cooled, of course - it's a big radial???

@@johnmcphail2726 In B-17’s, the whole radial was exposed directly to cooling airflow. In the S-58, it’s fully hidden with a few vents.

@@Glen.Danielsen there's a big fan in these sikorski's.... takes air in the vents on top and on sides.... snarks? - what? www.heli-archive.ch/fileadmin/images/Elicotteri/Sikorsky_S-58/S-58B_inbord_profile_6404261_HAB.jpg

@@Glen.Danielsen Big squirrel cage fan on the flywheel pulling air through the vents just below the windscreen and ducted over the cylinders.

@@noshsreqd Ah, thanks Nosh. 🙂

Sikorsky actually did develop ejection seats for helicopters in the mid 70’s. My dad was in the test phase of it. They used rocket sled at Holloman AFB as I recall. Pyrotechnics blew blades, glass then seat, in that order. There’s a cool video of it on RU-vid.

Haha, wonder why

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don't know

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Good eyes👍