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HomeRC & PowerAircraftHelicopterFlybarless Rotor Head SystemsOther › Blade stops with V Bar ?
06-02-2009 09:44 PM  9 years agoPost 1
Jeff polisena

rrElite Veteran

westpalmbeachflorida usa

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I have done everything I can to see if V Bar will let me down and it has not . My question is has anyone tried blade stops ?

I stole it ,flew it and gave it back ;)

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06-02-2009 09:50 PM  9 years agoPost 2
Jag72

rrProfessor

South of Boston

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I would like to see that
I'm betting it would not end pretty though

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06-02-2009 09:52 PM  9 years agoPost 3
cdrking

rrElite Veteran

Seattle

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I saw Matt Botos doing them with a FBL N9 last summer. Seemed to work very nicely.

Jeff

To hover is divine, the alternative is rather PLANE.

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06-02-2009 11:08 PM  9 years agoPost 4
bobn

rrNovice

Alvarado, Texas USA

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I have seen Curtis Youngblood do it at SRC 2007 with his flybarless Vibe 90 with his own FBL unit and Andy Rummer did it Saturday night with his Logo600 - there is a video of Andy's flight on RunRyder rrTV Videos. All you could see was two red lights falling - I have never seen anything like it before that funfly. He turned on and off lights the whole flight - what a flight to watch !

Andy's Video in the last video of the night flying on Saturday night

http://runryder.com/?v=/rrTV-Photo/...ight-Rummer.wmv

Need to check it out and see it for your self.

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06-02-2009 11:11 PM  9 years agoPost 5
Ronald Thomas

rrMaster

Gainesville, Fl, USA

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OK that was cool

Team MikadoUSA 480XXTreme, 550SX, 600SX, 700XXTreme, 800XXTreme!!

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06-02-2009 11:45 PM  9 years agoPost 6
Jeff polisena

rrElite Veteran

westpalmbeachflorida usa

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I can do them on flybar so I will try them on FBL I will let you know

I stole it ,flew it and gave it back ;)

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06-03-2009 12:42 AM  9 years agoPost 7
Big Fil

rrKey Veteran

Santa Rosa, CA

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Isn't there more to it than just flybarless or flybar'd? Thought I remember something where the design of the Trex 700 head did not allow for bladestops. I don't know since I can't do them but it sounds like it would be based of individual head design more than FBL or not.

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06-03-2009 01:04 AM  9 years agoPost 8
Jeff polisena

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westpalmbeachflorida usa

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Ive done them on 700 and many more(Synergy,Vibe 90,Raptor 90,Vibe 50 ,Trex 500) so I dont know about designs

I stole it ,flew it and gave it back ;)

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06-03-2009 11:59 AM  9 years agoPost 9
maj

rrVeteran

united Kingdom

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You can stop the blades on any helicopter, It's getting them going again that is the art.

You can try anything once!!

MJ

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06-03-2009 02:16 PM  9 years agoPost 10
bobn

rrNovice

Alvarado, Texas USA

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You have to make the blades very tight in the grips so they do not fold up ! That makes for a real bad experiance.

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06-03-2009 03:14 PM  9 years agoPost 11
Eury

rrProfessor

Dover NH

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I did it (inadvertently) with my 600N V-bar. Turned out fine. A visitor asked at the field how high a heli could go, and I showed him by doign the proverbial mile high auto. After hitting hold it was coming down and probably 10 seconds later my buddy and could finally see that it was falling almost knife edge with the blades barely turning. Luckily I had a huge amount of altitude to play with the collective, because I got them spinning again and had an uneventful landing so I could get a fresh pair of shorts.

Basically it acted like a conventional head in that situation.

Nick Crego

Citizen #0168

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06-03-2009 04:19 PM  9 years agoPost 12
Jeff polisena

rrElite Veteran

westpalmbeachflorida usa

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I always power on in normal mode so blades don't fold

I stole it ,flew it and gave it back ;)

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06-03-2009 05:26 PM  9 years agoPost 13
Foster

rrApprentice

Saline MI

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What does powering on in normal have to do with your blades folding during an auto because they stopped? Serious question here...

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06-03-2009 05:32 PM  9 years agoPost 14
Jag72

rrProfessor

South of Boston

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Powering in normal
means the head will spool slower=less likely to induce a blade fold

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06-03-2009 05:35 PM  9 years agoPost 15
Foster

rrApprentice

Saline MI

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oh really???!? at spool up yes but again WHAT does that have to do with a blade stop auto? We are talking about them folding in the air after the blades stop not on the ground before take off. Or am I being stupid again?

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06-03-2009 05:37 PM  9 years agoPost 16
Ronald Thomas

rrMaster

Gainesville, Fl, USA

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Blades are stopped....spool up too fast = blades fold. Whether you are in the air or on the ground = bad day.......Ron

Team MikadoUSA 480XXTreme, 550SX, 600SX, 700XXTreme, 800XXTreme!!

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06-03-2009 05:39 PM  9 years agoPost 17
Foster

rrApprentice

Saline MI

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Are you guys screwing with me or just not reading my question at all?

Does it really matter what mode you are in during a blade stop auto in regards to the blades spooling up again without power?

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06-03-2009 06:05 PM  9 years agoPost 18
Eury

rrProfessor

Dover NH

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The blades don't fold when they stop, they slow down and stop gradually, so they never fold. Then you get them going again in normal mode slowly, so they don't fold as they are coming back up. Is that the answer you were looking for?

Nick Crego

Citizen #0168

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HomeRC & PowerAircraftHelicopterFlybarless Rotor Head SystemsOther › Blade stops with V Bar ?
06-03-2009 07:56 PM  9 years ago •• Post 19 ••
Foster

rrApprentice

Saline MI

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If you are in throttle hold performing an autorotation, you are not in normal mode nor idle 1 or 2 you are in throttle hold mode.

Maybe I am confused and don’t understand the fundamentals of a blade stop autorotation landing? DO you go back to normal mode so the motor spools the blades again? I'm pretty sure you do not but I have been wrong more than right in this hobby thus far...

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06-03-2009 08:55 PM  9 years agoPost 20
bobn

rrNovice

Alvarado, Texas USA

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The blade stops I have seen did not use the motor to spool the blades back up again. You carefully start feeding negative collective (IF upright)to get them going again. That is why I noted that you had better have the blades real tight in the blade grips. If you don't you are likely to have a boom strike.

I have seen Curtis Youngblood do double blade stops and have enough head speed to do a 540 degree Pyro before landing, but he was way-way up there before he started - he sure has good eye site.

I have also seen unsuccessful blade stops where the blades did fold! That is why I mentioned to keep the blades real tight. THEY WILL FOLD if they are too loose in the blade grips. And if blades are only slightly tight I have seen them fold enough to not be able to get the heli spooled back up again and when you go to bail out of the Auto using the motor it shakes the heli to pieces.

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