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Gabor
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Joined: Sat Nov 02, 2013 2:18 pm Posts: 11382
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OK let me know if I can help. The blades are quite heavy for one!!! Sooooo if you want me to I will help. Stringing the blades can be done easily. I doubt that that's your problem but just to eliminate the possibility you should do it. I am still looking at your lower section. Stick would shake more if it came from the disc. Anyways. We will figure it out. See you this weekend.
_________________A walk in the woods helps me relax and release tension. The fact that I am dragging a body should be entirely irrelevant! A simple thank you would have been enough for the morning coffee without all that "how did you get in here" nonsense.
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Mon Jul 14, 2014 7:12 am |
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loftus
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Thanks - yeah I have to work it out!!! Carb balance - check Prop balance - check I think Rotor alignment - not checked Some rudder issue?, Cable tension maybe? One of the very knowledgeable guys in SA mentioned something about the tracking of the rotor head itself that is adjustable, but I think that is with the Magni, I don't see anything on the MTO head itself that can be adjusted
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Mon Jul 14, 2014 12:46 pm |
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Gabor
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Magni is a different animal. I am not aware of MTO head adjustment. We can still check a few things from the cables to the push rods on the front all the way to the pulleys. There are a few places where slack can occur. We will find it!
_________________A walk in the woods helps me relax and release tension. The fact that I am dragging a body should be entirely irrelevant! A simple thank you would have been enough for the morning coffee without all that "how did you get in here" nonsense.
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Mon Jul 14, 2014 1:02 pm |
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Dropbear
Joined: Tue Nov 05, 2013 9:30 pm Posts: 1248 Location: UP A GUMTREE
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I think you need to ask Bob about tracking blades ( shims in the rotorhead) to smooth stick-shakes... I watched him do it @ BD's & he's got this thread going for Mentone! http://www.rotaryforum.com/forum/showthread.php?t=41247
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Wed Jul 16, 2014 11:25 pm |
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loftus
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Yeah, I did send him a message, but no reply yet. My issue is a little strange. In normal flight (Gabor and Larry backseat will confirm this), I have very little stick shake, particularly front to back, but I have some perceptible side to side shake as much in the aircraft as in the stick. Not something of any concern in normal flight. Where it first concerned me and was very noticeable - but NOT in the stick - was on full power steep climb out. Felt a real shuddering, and on one occasion I thought my rudder cables had snapped like Gabor, the pedals seemed so loose. It resolved when I pulled the power back a little. When I told Des about it at the time, he said he thought I was imagining it - as it was one of my early solo flights and maybe climbing out a little steeply Since then I can definitely duplicate it at full power and steep climb. However the confirmation came when Larry commented after our beach flight a few weeks ago that he could visibly detect a flutter or a shake in my tail even in normal flight. On the ground the comment was that the shake looked similar to what one would see if one shakes the from side to side right where the keel bend of the MTO is. So question is, is this a frame shake transmitted from rotor or motor, or is it something in the airflow over the tail?
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Thu Jul 17, 2014 6:55 am |
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Gabor
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Joined: Sat Nov 02, 2013 2:18 pm Posts: 11382
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Yes I am absolutely doubting the rotor blades. I have flown the machine and there was no 2/rev. The stick is steady and that would be your first clue of they were out of line. We will still string the blades but I am really leaning towards having one of the props being out. That would shake it when the resonance is just right. I have checked the cable tightness and the eyelet is set properly too. I don't feel the engine is rough so that is not the reason for the shake. More to come stay tuned!
_________________A walk in the woods helps me relax and release tension. The fact that I am dragging a body should be entirely irrelevant! A simple thank you would have been enough for the morning coffee without all that "how did you get in here" nonsense.
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Thu Jul 17, 2014 7:06 am |
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loftus
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See you at KDED later. If we don't sort it out - I will have an even better excuse to try one of Abid's props.
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Thu Jul 17, 2014 7:19 am |
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Gabor
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Joined: Sat Nov 02, 2013 2:18 pm Posts: 11382
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Yep. I'll see you later.
_________________A walk in the woods helps me relax and release tension. The fact that I am dragging a body should be entirely irrelevant! A simple thank you would have been enough for the morning coffee without all that "how did you get in here" nonsense.
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Thu Jul 17, 2014 7:28 am |
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GordonT
Joined: Sat Nov 02, 2013 2:25 pm Posts: 1260 Location: Central Florida
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I hope you figure it out this weekend. I will think about you from San Francisco!!
_________________ “If things go wrong, don't go with them.” ..... ― Roger Babson “People say there are thousands of options we have in life. I say we have only two: we can either be happy or be unhappy.” ..... ― Pawan Mishra
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Thu Jul 17, 2014 7:42 am |
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Gabor
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Have safe trip.
_________________A walk in the woods helps me relax and release tension. The fact that I am dragging a body should be entirely irrelevant! A simple thank you would have been enough for the morning coffee without all that "how did you get in here" nonsense.
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Thu Jul 17, 2014 7:48 am |
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Gabor
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Will be heading out to the airport soon. See you there Jeff.
_________________A walk in the woods helps me relax and release tension. The fact that I am dragging a body should be entirely irrelevant! A simple thank you would have been enough for the morning coffee without all that "how did you get in here" nonsense.
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Fri Jul 18, 2014 6:29 am |
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Gabor
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Joined: Sat Nov 02, 2013 2:18 pm Posts: 11382
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Life is grand....even grander....more grandestest!
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_________________A walk in the woods helps me relax and release tension. The fact that I am dragging a body should be entirely irrelevant! A simple thank you would have been enough for the morning coffee without all that "how did you get in here" nonsense.
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Fri Jul 18, 2014 10:51 am |
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Dropbear
Joined: Tue Nov 05, 2013 9:30 pm Posts: 1248 Location: UP A GUMTREE
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LUCKY BUGGERS!!! .... WISHING I had some company to go hang & tweak & fly with .... some days it's a real push to get motivated ...all my myself! & I sure NEED the practise! ...
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Fri Jul 18, 2014 11:05 am |
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Gabor
Site Admin
Joined: Sat Nov 02, 2013 2:18 pm Posts: 11382
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_________________A walk in the woods helps me relax and release tension. The fact that I am dragging a body should be entirely irrelevant! A simple thank you would have been enough for the morning coffee without all that "how did you get in here" nonsense.
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Fri Jul 18, 2014 11:08 am |
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loftus
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Good day today; thanks Gabor! The vibration is much better with increasing the pitch and balancing the prop. Flew North a couple of miles to Lee Municipal to stay out of the busy Deland traffic pattern, and did a bunch of T&G's on the 9/27 grass strip. Also after you leftThen back to KDED for a few more. Had a nice visit at the hangar from Mike Smith from Macon, Georgia. He has ordered a Tangerine Scream MNTO like mine, and wanted to see mine while visiting Florida. He is a certified mechanic and hoping to become a CFI. May have to do the beach again tomorrow. See you there.
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Fri Jul 18, 2014 7:06 pm |
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Gabor
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Joined: Sat Nov 02, 2013 2:18 pm Posts: 11382
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_________________A walk in the woods helps me relax and release tension. The fact that I am dragging a body should be entirely irrelevant! A simple thank you would have been enough for the morning coffee without all that "how did you get in here" nonsense.
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Fri Jul 18, 2014 8:05 pm |
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Animal
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Oh no not banned from the hanger.... say it's not so... You guys have way to much fun at Deland. looking forward to getting moved, told my A&P when ever he gets my Helicopter ready and brings it to Florida, to bring his Chadwick balancer. that thing is great on Rotors and Props. Fly safe guys, see ya soon.
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Fri Jul 18, 2014 8:11 pm |
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GordonT
Joined: Sat Nov 02, 2013 2:25 pm Posts: 1260 Location: Central Florida
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Sounds like a productive day, sorry I couldn't be there too. Next weekend I will
_________________ “If things go wrong, don't go with them.” ..... ― Roger Babson “People say there are thousands of options we have in life. I say we have only two: we can either be happy or be unhappy.” ..... ― Pawan Mishra
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Sat Jul 19, 2014 1:36 am |
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Gabor
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Joined: Sat Nov 02, 2013 2:18 pm Posts: 11382
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Great flight. The machine is flawless. YAY!
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_________________A walk in the woods helps me relax and release tension. The fact that I am dragging a body should be entirely irrelevant! A simple thank you would have been enough for the morning coffee without all that "how did you get in here" nonsense.
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Sat Jul 19, 2014 12:48 pm |
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Animal
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Great pics, thanks for sharing. I bet that is a fun flight down the beach.
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Sat Jul 19, 2014 3:00 pm |
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