AutoGyro Rotorblade Installation and Removal
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- Опубликовано: 16 фев 2021
- Cierva Aero is always working to make sure our partners have the knowledge and tools they need to keep their aircraft in flying shape. This video explains how we safely install and remove AutoGyro rotor blades for maintenance or transport.
This information is not intended to replace any Service Document, but is intended as additional expanded information to help clarify certain procedures. In all cases, the original manufacturer's service and maintenance documents are authoritative. 
Авто/Мото
Nice use of the folding camping stools. Great hint about the balance of the blades during disassembly.
Glad it was helpful!
More videos on assembly and maintenance would be great, thanks for sharing 👍
Absolutely! Any specific maintenance points for which you'd like to see content?
@@CiervaAero i own mto 2015 model, so Anything would be great. I perform my own maintenance, thats why i asked.
Cyclic adjustment, blade maintenance. Ectr...
OK! We'll try to get some MTO maintenance videos up.
Wwoo so so good love it...
Thank you.
Great video. Your method of balancing the rotor system on camp stools is great.
However, I have a problem with some of your advice regarding lubrication and torquing of the
retaining bolts.
The maintenance manual specifically states that the bolts should have only a very light oil
lubrication on the plain segment of the bolt shafts - not on the head, or threads. Further, the manual
specifies AG-GRS-01 lubricant which is different to the Lagermeister WHS 2002 grease used for
the teeter bolt.
My interpretation of this is that the tightening torque specified is for DRY threads and new nyloc nuts.
If you lubricate everything the tightening torque should be reduced by approximately 30% to achieve
the same compression / clamping forces. Of course the bolts can handle way more but not necessarily
the components being assembled. You mention 20 Nm tightening torque, whereas the manual
specifies 25 Nm. Having said that, and in view of my comments above I would have thought the
torque should be around 17 to 18 Nm if you lubricate everything in sight. Is your 20 Nm figure a
'nod' to the lubrication?
( NB motor vehicle wheel bolts should have similar parameters applied - i.e. specified tightening
torques reduced by around 30% to achieve the same clamping forces if you lubricate the threads
and seats etc.).
Another matter is your use of what appears to be 'any old' lithium grease. Many non-aviation specific
lubricants can have a detrimental effect on some alloys.
Now, I am not an engineer of any sort - just an AutoGyro Cavalon owner who does a lot of the maintenance
in conjunction with advice and assistance from a Licensed Aircraft Maintenance Engineer. and so
I am ready to stand to be corrected on any of the foregoing.
Regards
David,
New Zealand
Thanks for your interest in the video!
You're absolutely correct, the threads on the bolts should not be lubricated, only the shaft of the bolt. If lubricant gets on the threads, it's pretty simple to clean them off. The tightening torque that we received from the factory is a fairly wide range (15-25nm.) The maintenance manual indicates 15nm as the low end, we tighten to 20nm.
The grease in the maintenance manual is our grease of choice! We've spoken to the factory and they've said that any quality grease (we specifically use white lithium) is fine on the anodized materials.
It's good to see members of our community with this commitment to detail, I'm sure your gyro's in great condition. Do you have any pictures?
Excellent job
Thank you! Cheers!
Good for you..I am learning
Very nice sir
Très génial bon vent
Great job guys
The length and width of propeller blades can depend on the model of the aircraft to fly ?
Nice job.i have a curiosity.what is pitch angle between the two blades?thanks and a hug from Brazil .
Great video. Do you typically reinstall the rotor without doing a string alignment test? If you do a string alignment would you
consider doing a video for that?
We'll do a string alignment test at periodic inspection intervals (or if excess vibration, etc. is detected,) but not every time the blades are assembled. I'll see about getting a video done on that, thanks for the idea!
what is a good angle of inclination of the blade, and is the trailing edge facing down or up? because I'm confused why it can spin
The blades are angled with the leading edge up at about two degrees relative to the plane of rotation. This link isn't connected with us, but has a pretty good explanation of the aerodynamics at work www.pilotfriend.com/training/flight_training/rotary/gyro_aeronaut.htm
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What a price?
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How does make the helicopter blades
These are extruded aluminum blades from the factory in Hildesheim, Germany!
What is the size of the rotor, how many meters long and how many centimeters wide, please tell me. Width 21 centimeters or 28 centimeters and length how many meters, 7 meters or 8 meters, I want to know.
These rotor blades are 8.6m long and .2m wide!
@@CiervaAero very wide If it does not use other engines that is not a Rotech such as a sedan engine with the weight of the engine 160-180 kg
Our gyroplanes use Rotax 9 series engines, the 914 has a mass of about 64kg and the 915 comes in at around 85kg.
Согласен, не смажешь - окислится. Смазка должна быть - полностью синтетической или силикон!
What is the cost of replacing those blades ?
It depends on which length of blade and rotorhead setup for the gyroplane, but I wouldn't recommend it.
Is this iron blades?
These are extruded aluminum!
@@CiervaAero Length of Rotor Blades and Dia meter? Please reply to me
This is an 8.6m rotor system, the blades are a tiny bit under 20cm in diameter.
សូមជួយរកគ្រឿងយន្តហោះមកលក់នៅប្រទេសខ្មែរផងព្រោះខ្ញុំចូលចិត្តណាស់
سلام
That's called the Jesus bolt?
That main bolt on which the rotor system hangs and teeters is sometimes called the Jesus bolt, yes!