There's a system that allows you to engage the rotor from the engine (The Pre Rotor) and while stationary you power the rotor up to around 200 rpm then you disengage the rotor. Once you have started to make your take off run the air is forced through the rotor which increases its speed. Once the rotor gets to around 400 rpm you're airborne ( as I understand it) I'm not sure if all gyros get the benefit of ground effect, but the Arrow copter has small wings and that does.
Is the main blade propelled by the engine? I thought the lift came from the forward movement. But the main blade is moving while the aircraft is on the ground before takeoff . What an amazing machine!
I'm sure you know this by now, per the POH for the Cavalon it says stick all the way back then forward to prevent hopping into the air before Vx or Vy is achieved. Sure it'll fly but luckily you don't have winds.
Oh yes, I know... This were the first two solo flights with a Cavalon 914 Turbo and the power surprised me a little... The training in the Cavalon was done with a Cavalon 912S with only 100 hp and a FI beside me.....
Oh yes, i am very happy with it :-) One change is necessary: A pressure compensation device for the pneumatic trim. AutoGyro will upgrade the Cavalon with this feature soon . This will keep the flight smoother and easier.
Not clear why the blade is spinning at such a high rate when craft is standing still on the ground. Is there some mechanism that initiates the rotation?
RickTorn sure that there is. It is essential if you want to start flying. Usually it is needed a 200 rpm, then you release the clutch and the rotor is free to run. The air will be the "tool" that keep it running (at a faster rate). That's the way every gyro works. 😉
Tecnobingo "That's the way every gyro works." No, it's not. Many small gyroplanes do not have prerotors; you start the rotor turning by hand and then use a long takeoff roll to get them up to speed.
I don't like the way the tail boom is bent. It drags the ground behind it grey area for me. I'm not an expert but I would redesign the tail boom to a more strait back configuration if feasible.
Wolfgang, what are your operating cost per flying hour, do you use mo gas, have you had any need for factory support,ad what are your opinions of the Cavalon Gyro overall?
Rick Cahill Hi Rick, the operating cost depends on the annual flight time, of course. I never calculated it and I will not do it in the future ;-)Yes - i use mogas (super plus, called in Germany).Another "yes" to your question about the support: The clutch for pre rotating got broken after about 30 h. AutoGyro did the repair w/o charging material costs and charging only half of the hourly wages (as the warranty had expired only two months before). I feel the Cavalon was one of the best side by side gyrocopters with German certification. i would buy it again ;-)
It's called "pre-rotating", on some, this is done by hand. This one is temporarily connected to the engine most likely via belts. Typically they are spun up to around 200 rpm before disconnecting from the engine. This greatly reduces the length of the takeoff. Opps. I see that Rod already answered this question.. (guess I should read the whole thread first)
More leverage less force required and less leverage requires more force. Now that takes care of the handle. Set tension and torque remain constant. Two distinct and separate aspects of any torque wrench.
True enough for a beam type torque wrench. Absurd for modern click/beep types. The former actually measure the bend in the handle, so if you're not gripping in the right spot, the handle doesn't bend and therefore you'll apply (perhaps a great deal) more torque than desired. The click/beep type will be accurate regardless of where they're held. Wolfgang has a clicker, so he's fine.
www.auto-gyro.com/en/Cavalon/Configuration/ for a first glimpse of your next pretty invoice :D usually you will contact a sales partner from www.auto-gyro.com/en/Locations-Partners/
CBM 215 "Did not know the USAF was using Gyro Copters now and were experts on them?" The US Air Force began using Gyrocopters in 1968, and they were designated X-25s. There were X-25, X-25A, and X-25B variants. But one needn't be an expert on gyroplanes to know how to use a torque wrench; that's general mechanical knowledge.
I Guess the tool manufacturers should call you, they seem to think otherwise..... "To achieve an accurate torque reading, you must use a torque wrench correctly. You have to hold the tool on the hand grip, and either push or pull on this part of the handle only. If the hand grip has a pivot point, you have to hold the handle so the load is balanced over the pivot point." www1.snapon.com/display/231/ToolNews/TechRefs/2008/TorqueWrench08.pdf Luckily he was using it on a non critical component like the rotor blade so exacting measurements shouldn't really matter...
There's a system that allows you to engage the rotor from the engine (The Pre Rotor) and while stationary you power the rotor up to around 200 rpm then you disengage the rotor. Once you have started to make your take off run the air is forced through the rotor which increases its speed. Once the rotor gets to around 400 rpm you're airborne ( as I understand it)
I'm not sure if all gyros get the benefit of ground effect, but the Arrow copter has small wings and that does.
Love the colour choice. Beautiful aircraft.
Well done,... congratulations!
I really enjoyed your video.
6:34 "Fly me to the moon, Let me play among the stars..." ;-)
Nice!
Pretty aircraft!
I like this side by side two seater over the Calidus model. Quite a lot.
So there is no cyclic on the rotors just fixed at what angle of pitch on the rotor blades?
Is the shaft with the empenage hollow, or is there structure within to prevent collapse?
The act of watching this video of this magnificent Gyrocopter was exhilarating! Two questions that standout for me is what is the ceiling and range?
Endurance is 4 h (about 500 km) and the service ceiling is about 12 000 ft.
great video
Beautiful gyro
how does ground effect work with a gyro?
Do you have to have a Pilots License to operate one of these bad boys?
Is the main blade propelled by the engine? I thought the lift came from the forward movement. But the main blade is moving while the aircraft is on the ground before takeoff . What an amazing machine!
It's probably getting lift from the horizontal airflow created by the engine prop, just a guess.
What is the plane in the background, it has amazing long wings!
I'm sure you know this by now, per the POH for the Cavalon it says stick all the way back then forward to prevent hopping into the air before Vx or Vy is achieved. Sure it'll fly but luckily you don't have winds.
Oh yes, I know... This were the first two solo flights with a Cavalon 914 Turbo and the power surprised me a little... The training in the Cavalon was done with a Cavalon 912S with only 100 hp and a FI beside me.....
Looks goodI
At his big smiles & thumbs up looking sideways for the camera, after first landing @ 5:10 , I was waiting for him to crash into a tree. ;^>
Einfach Klasse wirklich schön.
Классно!!!
How's the Cavalon now
Are you still happy with it?
What would you change about it?
Oh yes, i am very happy with it :-)
One change is necessary: A pressure compensation device for the pneumatic trim. AutoGyro will upgrade the Cavalon with this feature soon . This will keep the flight smoother and easier.
Please post more videos there great.
any chance of doing a walk around the aircraft and inside instrumentation video?
Not clear why the blade is spinning at such a high rate when craft is standing still on the ground. Is there some mechanism that initiates the rotation?
RickTorn sure that there is. It is essential if you want to start flying. Usually it is needed a 200 rpm, then you release the clutch and the rotor is free to run. The air will be the "tool" that keep it running (at a faster rate). That's the way every gyro works. 😉
Tecnobingo "That's the way every gyro works."
No, it's not. Many small gyroplanes do not have prerotors; you start the rotor turning by hand and then use a long takeoff roll to get them up to speed.
Well it's broke in now somewhat!! Nice
I don't like the way the tail boom is bent. It drags the ground behind it grey area for me. I'm not an expert but I would redesign the tail boom to a more strait back configuration if feasible.
You need the space for the propeller...
Gibt es dafür auch ein Rettungsgerät wie bei anderen ultraleicht?
Nein. Der Rotor wird als Rettungsgerät angesehen, da er sich auch ohne Antrieb ständig dreht.
its my dream to be free in 3D world, not only 2D =)))
Wolfgang, what are your operating cost per flying hour, do you use mo gas, have you had any need for factory support,ad what are your opinions of the Cavalon Gyro overall?
Rick Cahill Hi Rick, the operating cost depends on the annual flight time, of course. I never calculated it and I will not do it in the future ;-)Yes - i use mogas (super plus, called in Germany).Another "yes" to your question about the support: The clutch for pre rotating got broken after about 30 h. AutoGyro did the repair w/o charging material costs and charging only half of the hourly wages (as the warranty had expired only two months before).
I feel the Cavalon was one of the best side by side gyrocopters with German certification. i would buy it again ;-)
Thanks for the info Wolfgang!
How does the top Propeller turn in the start, if its unpowered?
It's called "pre-rotating", on some, this is done by hand. This one is temporarily connected to the engine most likely via belts. Typically they are spun up to around 200 rpm before disconnecting from the engine. This greatly reduces the length of the takeoff. Opps. I see that Rod already answered this question.. (guess I should read the whole thread first)
sehr cool
Go to the Mountz website and get torque wrench instructions.
Enough on the torque wrench. I think this has been addressed adequately.
who is the u.s. dealer
hello torque wrench are meant to be used from end of the handle not half way up just letting you know its a big no no for torque wrench's
lol did not see that someone else already told you lol
IT is very important were you hold that torque wrench. the way you hold it your torque is not accurate
you are correct must push from end at handle , important
More leverage less force required and less leverage requires more force. Now that takes care of the handle. Set tension and torque remain constant. Two distinct and separate aspects of any torque wrench.
True enough for a beam type torque wrench. Absurd for modern click/beep types. The former actually measure the bend in the handle, so if you're not gripping in the right spot, the handle doesn't bend and therefore you'll apply (perhaps a great deal) more torque than desired. The click/beep type will be accurate regardless of where they're held. Wolfgang has a clicker, so he's fine.
I think those machines are so cool!
Очень красиво . Сколько стоит ₽ ? € ? 😃😃😃
@2:05 hey jerky in the fannypack get the F out of my shot!!!
How much did one of these set you back?
www.auto-gyro.com/en/Cavalon/Configuration/ for a first glimpse of your next pretty invoice :D
usually you will contact a sales partner from www.auto-gyro.com/en/Locations-Partners/
alright thanks for the info
Das Ding sieht aus wie ein autoscoooter
If it didn't look so dumb, I could probable own one.
It’s function, not fashion, Elvis.
As a USAF turboprop mech........you will kill someone without proper training.......torque wrench.
Jesus Rodger ... ! RELAX - Your Retired Already !!
Did not know the USAF was using Gyro Copters now and were experts on them?
CBM 215 "Did not know the USAF was using Gyro Copters now and were experts on them?"
The US Air Force began using Gyrocopters in 1968, and they were designated X-25s. There were X-25, X-25A, and X-25B variants. But one needn't be an expert on gyroplanes to know how to use a torque wrench; that's general mechanical knowledge.
That's not how to use a torque wrench.
modelleg why not?
Because when you hold it closer to the fulcrum rather than on the grip it changes the torque just like a lever.
Hunter Jones the torque is preset in the wrench mechanism so it doesn't matter if you hold the wrench at either end.
I Guess the tool manufacturers should call you, they seem to think otherwise..... "To achieve an accurate torque reading, you must use a torque wrench correctly. You have to hold the tool on the hand grip, and either push or pull on this part of the handle only. If the hand grip has a pivot point, you have to hold the handle so the load is balanced over the pivot point."
www1.snapon.com/display/231/ToolNews/TechRefs/2008/TorqueWrench08.pdf
Luckily he was using it on a non critical component like the rotor blade so exacting measurements shouldn't really matter...
IKR.... That was stuff I learned in Shop class when I was a kid.
Nice g'plane, shame about the colour...
No onboard? Pathetic.
Look at the title... You are not a pilot, am I right? Do you think I have no problem on a maiden flight other than taking a camera with me?