rrTV-PHOTO   New HD TV
HOME   rrTV-PHOTO   GALLERIES   MY GALLERY   HELP-FAQ
myHOME PM pmRR MEMBERS 729 ONLINE 20 EVENTS SEARCH REGISTER  START HERE
 
3 pages [ <<    <    ( 1 )     2      3     NEXT    >> ]4566 viewsPOST REPLY
Heli Wholesaler . 3D Heli Depot . JR-Spektrum

.
.
Flybarless Rotor Head Systems > 3D masters CSM Flybarless
 
 
Toolman
Senior Heliman
Location: London

Went on Saturday to a wet & very muddy 3DM
Watching the flying & noticed Duncan seemed to have loads of power during his set manoeuvres. Thought to myself he’s tuned his engine well, but as he walked back to the pits I noticed no flybar.

Anyway Colin Mill did a seminar on the CSM flybarless system.
Wow, this involved demonstrating it in action on a trex600 attached to a stand which allowed it freedom in the roll axis. The photo explains it better than I can describe it.



Sitting a few feet from a 50 size heli run up, is something that ALL heli pilots should experience! It’s bloody terrifying, and will give you a whole new respect for what your heli goes through & make you more diligent with your maintenance. I was thinking to myself, didn’t they have failures with the first batch of trex600 plastic blade grips . . .

On the first demonstration CM had the flybar locked up. When run up to speed CM showed the force required to roll the heli by rotating the end of the plank. The heli rolled quite easily.

Second demonstration showed the action of the flybar with the heli run up. Awesome seeing a heli rolling front of you!

The Third demonstration was with the flybarless system active & the flybar disconnected & locked.
Once run up to speed CM tried to roll the heli by turning the end of the plank, but basically it didn’t move (though the plank twisted quite a bit!). The flybarless system held the attitude.

I know that there was a camera man filming so hopefully you will all be able to see this.

Anyway big thanks to CM for another great seminar.

Tim.
07-22-2007 Over year old.
 
 
OUCaptain
Senior Heliman
Location: Heli Addict Rehab Center

Now that I gotta see the video of! Sounds cool

"Human beings are viruses with shoes"
07-22-2007 Over year old.
 
 
raptor50luvver
Veteran
Location: southampton UK

Good job nobody got hurt during this irresponsible demo,i am sure the heli manufacturer would not condone it being operated in this manner
07-22-2007 Over year old.
 
 
raptorheli2
Elite Veteran
Location: rip off britain and no changing it

you would need to be radio rental to stand there and watch that imo.....however....bring on the video

cheers


www.waterfoothelis.com
07-22-2007 Over year old.
HOMEPAGE  
 
 
AJM
Heliman
Location: Glasgow UK

I am somewhat shocked to see something like that at an event like this.

I can't think of anything much more irresponsible to do as a demo.....

I am a mole and I live in a hole.........
07-22-2007 Over year old.
 
 
RappyTappy
Elite Veteran
Location: Las Vegas, NV

U sure they banned alcohol from the event?

Chris
Xero G

Forever Brothers
Mickey Tylo
07-22-2007 Over year old.
HOMEPAGE  
 
 
Toolman
Senior Heliman
Location: London

If you can’t come to terms with being in the vicinity of a spinning disc then models helis maybe aren’t for you. As you are taking a risk every time you fly.

Maybe it would be an idea however to put it behind a piece of plexi glass or something, for piece of mind. I should add also that it was run at a lower head speed.

One interesting thing was the amount the blades actually flex. On the run with the flybarless system activated, when CM tried to roll the heli by turning the plank the head fought the turning force. I would say that the blades deflected by about 4-5” or so fighting to maintain level attitude, which it did remaining dead level.

Tim.
07-22-2007 Over year old.
 
 
raptorheli2
Elite Veteran
Location: rip off britain and no changing it

toolman, colin is trying to force something...that wouldn't happen in flight so the loads are different. nothing to do with "coming to terms with a spinning disc". we all take a risk flying but you don't purposly fly close to yourself. also the heli is strapped down so where are any vibes going to go? even being an electric it's bound to have some.

also when i hover it tends to be a lot, no a LOT further away than standing next to a plank of wood with a heli strapped on.

it would have been an idea to run it behind plexiglass yes. you could not have paid me to stand in there as it is.

cheers


www.waterfoothelis.com
07-22-2007 Over year old.
HOMEPAGE  
 
 
Captain Crazy
Senior Heliman
Location: Wakefield, England

I was sat at the very front at this seminar and i was shi#ing my pants. Every time the heli was spooled up i was a little uncomfortable, the downwash from the blades in such a small enclosed area was incredible.Was interesting to see some of the forces on the flybar and blades.Cheers Colin & the 3D masters.
07-22-2007 Over year old.
 
 
MrMel
Elite Veteran
Location: Lidingo, Sweden

Lol, my new E-Raptor 90 exploded mid-air, parts flew about 60 yards in every direction, some with body piercing speed (they would have flown alot longer then 60 yards if they didnt hit things on the way)

I got a battery about 3 feet from me, and I was about 30 yards from the heli.

I have respect for heli's no-a-days, no way I would sit close to it without good protection.
07-22-2007 Over year old.
 
 
Toolman
Senior Heliman
Location: London

The photo was taken after the seminar when CM was answering some questions, nobody was quite that close while the head was running.

Quote 
colin is trying to force something...that wouldn't happen in flight so the loads are different.
Not sure what you mean by this statement, the loads on the blades (and thus the head) are only aerodynamic, centrifugal, and gyroscopic which ARE excactly the same whether the helis is tethered or flying. The only difference is that the helis is free to move in only one axis.

Tim.
07-22-2007 Over year old.
 
 
raptorheli2
Elite Veteran
Location: rip off britain and no changing it

toolman, your trying to force something to move that isn't normally tethered....i.e the flybar/head. hence you could move the heli easily with the system off in your own words and couldn't move it with it on (the plank was twisting you mentioned above).

i look forward to seeing the video.

cheers


www.waterfoothelis.com
07-22-2007 Over year old.
HOMEPAGE  
 
 
raptorheli2
Elite Veteran
Location: rip off britain and no changing it

on another note, did anyone see the revlock 30 that was rumoured to be there and what the differences are?

cheers


www.waterfoothelis.com
07-22-2007 Over year old.
HOMEPAGE  
 
 
Toolman
Senior Heliman
Location: London

None of the different experiments demonstrated, applied any loads to the blades, head, or other components that are different to those that would be experienced by a model in flight.
Whether the stand was strong enough, well the main beam was at least 3” square which is pretty strong & had been used extensively for flybarless system testing. It wasn’t just knocked up for the demonstration.

I am not saying that there wasn’t an element of danger though & I wouldn’t want to be spending a great deal of time sitting next to the thing.

I didn’t hear anything about the revlock30, didn’t think to ask about that.

Tim.
07-22-2007 Over year old.
 
 
Snake Rimmer
Senior Heliman
Location: Up north in the England

I am sure the safety aspect of the demo was taken into account, in fact I bet a damn lot of thought went into it, as with all things involving the public there would of been a method statement and risk assessment done, this is a standard practise in leisure and industry, so if it was going to be unsafe then I'm sure it would of not been allowed!

Anyhow how do you think they do all these test in the factory? You will probably find that this method is what has been used for many test sessions for the flybarless system probably spanning years now, so you could say it would be a tried and tested system.

Anyway at the end of the day if people were not happy , they always know where the door is!!

To infinity and......................... the ground............Paul
07-22-2007 Over year old.
 
 
RussD
Veteran
Location: UK

Quote 
on another note, did anyone see the revlock 30 that was rumoured to be there and what the differences are?

The differences are 3 extra adjustments.

1: You decide how much collective can be pulled off by management system.

2: You decide how fast via a gain control.

3: You decide how much bog before system starts to pull off collective via deadband adjustment.


RussD.
07-22-2007 Over year old.
 
 
raptorheli2
Elite Veteran
Location: rip off britain and no changing it

russ, do you mean it is linked to pitch now and will automatically ease off it to preserve headspeed?

cheers


www.waterfoothelis.com
07-22-2007 Over year old.
HOMEPAGE  
 
 
raptor50luvver
Veteran
Location: southampton UK

A friend of mine used to tether his helis to tune them but using reduced pitch,,,one time it exploded..

A tethered Heli is not safe FULL STOP,,,very very dangerous,i was standing 20 feet away from my friends and i never want to be in that position again,,when the model is in flight the loads are different..

If the heli was behind plexiglass or something then fair enough but to be in an enclosed space with no protection is idiotic
07-22-2007 Over year old.
 
 
TOSH
Elite Veteran
Location: UK.

raptorheli2

lt`s my understanding that that`s how it works. l also think l desperatly need one.

SPONSORED BY CREATIVE INVOICING
07-22-2007 Over year old.
 
 
raptorheli2
Elite Veteran
Location: rip off britain and no changing it

thats a nice feature, i think i'll need to be looking at one of these.

cheers


www.waterfoothelis.com
07-22-2007 Over year old.
HOMEPAGE  
 
 
3 pages [ <<    <    ( 1 )     2      3     NEXT    >> ]4566 viewsPOST REPLY
Gyro Hobbies . E-flite . Next D

.
.
Flybarless Rotor Head Systems > 3D masters CSM Flybarless
 PRINT TOPIC Advertisers 

Subscribe to This Topic

Thursday, December 4 - 5:18 pm - Copyright © 2000 - 2008 runryder.com | email | link to rr | runryder needs cookie