Excellent video Bryan. Always fascinated by helicopter rotor head mechanisms. I first heard of the Jesus nut in Robert Mason’s great read, “ Chickenhawk.” I read somewhere the Huey had a nut to mast torque value 600-700 ft-lbs. 👍🏽👍🏽
Has anyone ever thought about two holes in the bolt head and the self locking nut to safety wire to each other or is there an integrity factor in doing that with the hardware? Just an extra layer of security even though the nut is self locking. Coming off from fighter jets nearly every fastener of importance is done in that form. Great content and new subscriber thank you!
Yes Sir I'm 70 now and fly only Rc is quite different you not sitting in the Rc you can make very quickly mistakes on a Rc not happening in a real one you can feel better in a real one.
3:05 It depends on the airplane design. Some do have multiple bolts that hold each wing on at the spar. Also, wing spar bolts typically only have to deal with loads induced by lift. The "Jesus Nut" on each blade also has to deal with centrifugal force. That being said, even on a spar with multiple bolts, if one shears the other probably won't be far behind.
Probably not with this low a torque. These are not torque to yield bolts and 70 ft-lbs is nothing for a 5/8” bolt. And these bolts are loaded in shear, not tension so no need to replace unless they show signs of wear.
Probably go by grading, not hardness, but a Home Depot 5/8" Grade 8 bolt could lift several tons in shear; I'm too lazy to look it up! For aviation purposes, I'd want something with a bit more provenance, as required in the certified aircraft world.
They have titanium bolts n nuts, much lighter n stronger than steel ones. They do cost more, but aviation has never been cheap to start with, unless you're flying kites... 🤔
Seems like an awful lot of work, with the shimming and balancing, to reattach the rotors. The community appears quite wonderful and helpful to each other, but then you trailer it home, and have to attach them again on your own.
Another bolt would mean "another hole" which would weaken the rotor hub... 🤔 Also, the "length" of the bolt is what takes the stress, not the actual torque that holds the bolt in place.
Depends on what you mean by "payload"; useful load on the 162 is ~525 lbs, which includes fuel, pilot, passenger, baggage. True payload, using the term as in commercial aviation, would be very little, as it would subtract the pilot and a certain amount of fuel.
Work more hours, find a job that pays more, find a second job, reduce spending to a minimum. I did all four when I learned to fly! Then I owned an airplane for a couple of decades-now that's a money pit.
I’m in telecom, not wealthy by any stretch! I have owned two airplanes and now own a nice little Rotor Way Exec 162F. Granted the helicopter was given to me by a very nice older couple but just want you to know it’s possible..
Nice video, but the atrocious autofocus and continual focus hunting of your camera makes it really hard to watch. Time to invest in a quality camera if you're going to keep producing these videos.
Who manufactures the bolts? I hope not China. That is ALFUL thin for a bore it should be at least 3/4 " not 5/8 " don't you think ? Is it military grade ? There should also be pins after the nuts so it won't come lose fellows. Nice helicopter though.
Amén, just commented above the same. Coming off from a decade of working in fighter jets gets old with all the safety wiring lol. If I ever owned I would....
I want a grandpa like him.. the enthusiasm melts my heart
Great engineering, so much on something like a pair of blades.kool stuff
Great v
Nice to see
Bring some more about the Rotorway
Hovering Helicopters is more awesome than watching them too!
Awesome! Hi Beeba!!
Trimakasi atas keiklasan hatinya berbagi semoga Allah SWT menjadikan nilai ibada buat bekal di hari pembalasanNya
Excellent video Bryan. Always fascinated by helicopter rotor head mechanisms. I first heard of the Jesus nut in Robert Mason’s great read, “ Chickenhawk.” I read somewhere the Huey had a nut to mast torque value 600-700 ft-lbs. 👍🏽👍🏽
The CH47 can be over 5,500 ft-lbs. I've had a few that took over 12,000 ft-lbs to break torque.
@@helicopterdeeznuts Wow, that’s some serious torque!
Has anyone ever thought about two holes in the bolt head and the self locking nut to safety wire to each other or is there an integrity factor in doing that with the hardware? Just an extra layer of security even though the nut is self locking. Coming off from fighter jets nearly every fastener of importance is done in that form. Great content and new subscriber thank you!
What I found interesting is that setup of a real helicopter is very similar to an rc helicopter.
All use the same physics my bro! Pretty rad
It's actually the other way around!
Yes Sir I'm 70 now and fly only Rc is quite different you not sitting in the Rc you can make very quickly mistakes on a Rc not happening in a real one you can feel better in a real one.
3:05 It depends on the airplane design. Some do have multiple bolts that hold each wing on at the spar. Also, wing spar bolts typically only have to deal with loads induced by lift. The "Jesus Nut" on each blade also has to deal with centrifugal force. That being said, even on a spar with multiple bolts, if one shears the other probably won't be far behind.
A 5/8ths bolt depending on the grade can withstand over 20,000 lbs of force. I think they are far from their limit
New bolt each time I would suspect?
Probably not with this low a torque. These are not torque to yield bolts and 70 ft-lbs is nothing for a 5/8” bolt. And these bolts are loaded in shear, not tension so no need to replace unless they show signs of wear.
How is the lead/lag controlled?
Where can I get the extra bolts nuts and washers
So, what is the SAE hardness of the bolts? Can't just any 'ol off the Home Depot shelf. Or can it?
Probably go by grading, not hardness, but a Home Depot 5/8" Grade 8 bolt could lift several tons in shear; I'm too lazy to look it up!
For aviation purposes, I'd want something with a bit more provenance, as required in the certified aircraft world.
mast bump is the enemy. this situation can and does trash main rotor shaft, prior to slicing tail rotor boom etc, careful out there.
They have titanium bolts n nuts, much lighter
n stronger than steel ones. They do cost more, but aviation has never been cheap to start with, unless you're flying kites... 🤔
Seems like an awful lot of work, with the shimming and balancing, to reattach the rotors. The community appears quite wonderful and helpful to each other, but then you trailer it home, and have to attach them again on your own.
👍🏽
How much HP produce this helicopter engine?
Would 2 bolts be too much to ask?
Another bolt would mean "another hole" which would weaken the rotor hub... 🤔
Also, the "length" of the bolt is what takes the stress, not the actual torque that holds the bolt in place.
Sweet little chopper. Payload capacity? Max 1/4 ton, maybe?
Depends on what you mean by "payload"; useful load on the 162 is ~525 lbs, which includes fuel, pilot, passenger, baggage. True payload, using the term as in commercial aviation, would be very little, as it would subtract the pilot and a certain amount of fuel.
@@UncleKennysPlace Guess to add a chain gun I'd have to diet hard and fly naked.
@@KowboyUSA There is not a helicopter for commercial use only for fun, so far.
I'm from Germany Bell 47 is different 10 - 4 Sir.
I would love to learn to fly helicopter. How can I make more money to afford it. Yes I do have a job.
Work more hours, find a job that pays more, find a second job, reduce spending to a minimum. I did all four when I learned to fly! Then I owned an airplane for a couple of decades-now that's a money pit.
Get rid of the wife...?
Unless, she loves flyng too!
I’m in telecom, not wealthy by any stretch! I have owned two airplanes and now own a nice little Rotor Way Exec 162F. Granted the helicopter was given to me by a very nice older couple but just want you to know it’s possible..
How much price
100k!
How easy build flying helecopter
Nice video, but the atrocious autofocus and continual focus hunting of your camera makes it really hard to watch. Time to invest in a quality camera if you're going to keep producing these videos.
In the Army we call it, Jesus Nut.
There's also the Big Nut flying it!
Anyone have a spare engine for 162f keep me posted! Charlie
Taylor ranch, New Mexico 🌮
Who manufactures the bolts? I hope not China. That is ALFUL thin for a bore it should be at least 3/4 " not 5/8 " don't you think ? Is it military grade ? There should also be pins after the nuts so it won't come lose fellows. Nice helicopter though.
I'm shocked more of those bolts aren't safety wired. That's a whole lot of Jesus nuts.
Amén, just commented above the same. Coming off from a decade of working in fighter jets gets old with all the safety wiring lol. If I ever owned I would....
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