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HomeRC & PowerAircraftHelicopterFlybarless Rotor Head SystemsBeastX › Tip over on take off
06-04-2012 12:41 AM  6 years agoPost 1
honda411

rrKey Veteran

Surprise, AZ USA

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Well I always thought the "tip over on take off" was just BS. Well I fell victim of it yesterday. I dont know what happened. All I know is the govenor didnt even get engaged yet in normal mode, and the heli tipped right over to the right.

Im using the stock tape with a velcro strap.

HeliDirect Field Rep, Synergy N7 w/ OS 105, Torq Servos, Cyclone/ Rail blades

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06-04-2012 12:58 AM  6 years agoPost 2
ncarbon

rrApprentice

Kalispell Montana

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Thoughts
Just the other weekend, my flying buddy had a similar issue. In normal mode the swash was level while spooling up, but as he went in to Idle1 it would tip forward and he almost lost it. What he found was he had some how added trim in Idle1. He went through and dis-abled all the trim after his near miss.

Ned

It is............what it isn't!

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06-04-2012 01:09 AM  6 years agoPost 3
honda411

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Surprise, AZ USA

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Oh wow! close call! Yeah before i test flew the new unit, I made sure every trim was at 0 and no subtrims.

I have never had this happen before, but this is the first beastx on a nitro for me.

My swash also doesnt move level from full negative to full positive either. It tilts right at neg a bit, and left at pos a bit

HeliDirect Field Rep, Synergy N7 w/ OS 105, Torq Servos, Cyclone/ Rail blades

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06-04-2012 01:17 AM  6 years agoPost 4
Santiago P

rrProfessor

South West, Ohio

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Tip overs are not BS
It has nothing to do with trim.

You either gave it an input while spooling and skids on the ground

OR

You hit the dreaded resonance that seem to have with some nitros at medium RPMs WITH the stock tape.

Is your unit mounted with the wires towards the rear?
My beastx is wires FWD and it dove to the left. Not fun.

CHANGE the stock tape to one or 2 layers of 3M grey moulding tape.
I had no issues with my BeeastX since the tape change.

S

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06-04-2012 01:22 AM  6 years agoPost 5
ncarbon

rrApprentice

Kalispell Montana

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Wow
MPV didn't realize you were with us ....

Ned

It is............what it isn't!

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06-04-2012 01:47 AM  6 years agoPost 6
Santiago P

rrProfessor

South West, Ohio

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Yep, it happen to me early on last year.
My Avant had a serious vibe issue.

Used a tight velcro strap and the problem went away. I went to show it off and forgot to put the strap back on.

next take off she went hardover left.

The gray tape fixed the issue for me.

The Ron Lund with Nathan video highlights the problem.

S

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06-04-2012 02:34 AM  6 years agoPost 7
honda411

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Surprise, AZ USA

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MPV: thanks for the advice! I was just gonna sell the 700N, butim thinking I will give it one last shot and try the tape. I will remove the stock tape, and use some of that PARMA servo tape I have. I run that (one layer) on my electrics with no issues ever.

And yes, my wires are facing towards the rear. Funny how yours was forward and went left. Mine is backwards and went right.

It also scares me about the swash plate interaction im getting. I have went through the setup multiple times to be sure I didnt miss a thing. I switched it to version 3 via usb cable and computer. Thinking about switching back to version 2, since im getting the interaction. Everyone, and every place I search says not to really worry about it, but thats why i went FBL, so i dont get anymore interaction.

I will use two layers of that PARMA tape this time around. Might be a week or so before I get some blades.

one more question. It didnt smack over hard,and was able to pull it back onto the skids, but the blades scraped the ground and split them and tail blades.
Do you think it was hard enough to bend the main shaft, spindle, or tail shaft? Remember it wasnt full rpm yet either. But enough to take off.

HeliDirect Field Rep, Synergy N7 w/ OS 105, Torq Servos, Cyclone/ Rail blades

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06-04-2012 02:56 AM  6 years agoPost 8
Santiago P

rrProfessor

South West, Ohio

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You will have to check your machine to see if it bent or damage anything.

have you seen this?

Watch at YouTube

S

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06-04-2012 05:29 AM  6 years agoPost 9
honda411

rrKey Veteran

Surprise, AZ USA

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Yeah i have watched that. I will change the tape

HeliDirect Field Rep, Synergy N7 w/ OS 105, Torq Servos, Cyclone/ Rail blades

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06-04-2012 01:10 PM  6 years agoPost 10
nickwap

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Berwick-upon-Tweed, Northumberland, England

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I have been using Beastx X since they were available, I have 3 Nitro set ups right now, only once had a drift with the system and that was on my N5c maiden, went with one layer of thin, I had used 2 layers and all good.
This is what I use right now on my 700's

700#1
This is 4+ years old at least and started out as Flybared this is my 'Beater'
Align FBL conversion V1 blade grips and the 700E main shaft (slightly shorter than 700N), M1 gears, Align servos, I don't use the Align output wheels as it wont give the Blue light 6 Deg setting, I use Futaba arms and the balls out 10.5 mm. YS91 ST with Hatori Pipe and Viper Head, Align 690 Blades 11 +/- Pitch. 30% Nitro Optifuel. Align Gov at 1950 HS. Lipo/ Reg to give 6v at servos, Quick UK Tail.
BeastX mounted on the Gyro mount, wires forward one piece of Automotive tape and a snug strap , this compresses the tape by about 50%, this is a lot harder mount than the stock BeastX tape.
700#2
9 months old Upgrades, DFC head (DFC swash on its way), Carbon Tail pushrod, KDE Tail yoke, Quick UK tail,Metal evevator mount, Torsion 690 Mains, Torsion Tail Blades,JR8900G @4.8v and JR8717's @6v on Cyclic JR output wheels balls at 10.5mm, M1 Gears, Rave Boom stays (they don't get loose)YS120/ Hatori/15% Rotor Rage 12.5 +/- pitch, Align Gov @ 1950
BeastX mounted in the same way as #1 Machine.

Both are Rock solid. I don't sit on the deck, just spool up and pop, and I always auto land, even if its a waist hight throttle hold but I think this is just habit.

To sum it up, thin tape + strap = happy beast

HTH Nick

"Give me another one, this one's broke!"

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06-04-2012 01:42 PM  6 years agoPost 11
unclejane

rrElite Veteran

santa fe, NM, USA

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For what it's worth, I get the opposite results. I have to use the BeastX foam pad on both my trex 700's. On the 700E, I use the foam pad with no strap. With the 3M tape hard mounted, I get the tipover behavior. On the 700 nitro, I use the foam pad with a strap. It works without the strap, but I get a drift at higher motor RPM's. The strap cures it.

Hard mounting is bad news on both my helis. I have no idea why mine are the opposite of what everyone needs on their Beasts...

Basically, that means unfortunately you have to experiment with the tape until you get the right combination....

LS

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06-05-2012 04:18 AM  6 years agoPost 12
honda411

rrKey Veteran

Surprise, AZ USA

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thanks for the replies guys! All the help and opinions are appreciated very much! Next I will just have to try 2 layers of the grey tape and velcro strap.
Im thinking there was too much vibration and it messed with the unit.

HeliDirect Field Rep, Synergy N7 w/ OS 105, Torq Servos, Cyclone/ Rail blades

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06-05-2012 10:59 PM  6 years agoPost 13
Sam2b

rrElite Veteran

Tacoma, WA

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I would suggest not using the velcro strap because it isn't necessary and inevitably does transfer some vibration to the sensor. If you first clean the surfaces with alcohol twice and let it dry, the foam adhesive pads will not come loose.... unless you put the sensor in a messy nitro exhaust area. In all my nitro days I've never had a sensor come loose while not using a strap.
Get rid of the velcro strap!

If you have another tip over and still using the velcro strap, don't come cry'n.

_Sam B_

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06-06-2012 12:48 AM  6 years agoPost 14
wifeorheli

rrElite Veteran

reno, nevada usa

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ditch the "stock tape" first off buddy get the 3m red backed. 2 layers nitro 1 layer electric!

Novarossi Motors U.S.A
www.PLanethobby.com
Team GrandRc.com
Team Byron Fuels
ZRC U.S.A. "PushGlo, SwitchGlo"

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06-06-2012 01:02 AM  6 years agoPost 15
Santiago P

rrProfessor

South West, Ohio

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"3m red backed. 2 layers nitro 1 layer electric!"

I want to echo the same, use 1 layer for nitro, 2 layers for electric.

.

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06-07-2012 03:40 AM  6 years agoPost 16
wifeorheli

rrElite Veteran

reno, nevada usa

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lol my exoerience is as posted 2 layers for vibes 1 if none(minimal) I ran 1 layer on my nitro + beastx and it killed my heli unflyable 2 all good.

Novarossi Motors U.S.A
www.PLanethobby.com
Team GrandRc.com
Team Byron Fuels
ZRC U.S.A. "PushGlo, SwitchGlo"

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06-07-2012 06:28 PM  6 years agoPost 17
nickwap

rrVeteran

Berwick-upon-Tweed, Northumberland, England

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Honda 411
How did you get on ??

We are all waiting

Well I am

Nick

"Give me another one, this one's broke!"

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06-07-2012 11:01 PM  6 years agoPost 18
honda411

rrKey Veteran

Surprise, AZ USA

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Thanks guys!

Nick: I haven't purchased blades yet. That's what's holding me up so much. Sorry guys. No money when tranny goes in my truck now. But when I do, you will see the post

HeliDirect Field Rep, Synergy N7 w/ OS 105, Torq Servos, Cyclone/ Rail blades

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06-08-2012 04:08 AM  6 years agoPost 19
Sam2b

rrElite Veteran

Tacoma, WA

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Also try to keep neutral collective while spooling up. I've never had a tip tendency while at neutral pitch, but with a little positive collective it has gotten tipsy - no coincidence I'm sure.

_Sam B_

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06-23-2012 06:07 AM  6 years agoPost 20
dj80550

rrVeteran

Texas

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I asked this question a few days back..see if anything in here might help:

https://rc.runryder.com/t700741p1/

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HomeRC & PowerAircraftHelicopterFlybarless Rotor Head SystemsBeastX › Tip over on take off
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