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Mikado Modellhubschrauber . GrandRC . CanoMod

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Main Discussion > Tail blowing out in stationary flips, any suggestions??
 
 
Zman9545
Veteran
Location: The Golden STATE

HH vs Rate

To take the 401 out of HH you would have to do it remotely. The procedure will very from Tx to Tx. For example, on my Futaba 7C.. AVCS is 'A' and Normal/Rate mode is 'N'. Anyway, One way to verify what mode your gyro is on is to simply put your heli on a lazy Susan, if you got one, and spin the heli to either side. If the tail linkages moves accordingly and stays in that position, then it is on HH mode. If the tail moved and went back to the center afterwards, then your gyro is on rate mode. Not sure if this is what you’re asking.

Hope this helped


Trex600N Pro
Kinetic 50

-The ONLY way you fail is when you quit.-
05-10-2008 04:25 AM
 
 
drdot
Elite Veteran
Location: So. California, Orange County.

fwiw...

What HDX do you have?...Ther's an upgrade tail speedup pulley available, as well as new longer tail blades...These helped a friends' HDX a lot...These new parts are available as of the introduction of the carbon pro version, I think....

John.
05-10-2008 05:30 AM
 
 
Spitfire1
Senior Heliman
Location: Perth Australia

I think im wrong then, when the gyros in HH the red lights solid, but if your say piroeting the red light wont be on until you return the stick to the centre.
I was wondering if you holding the rudder stick to make the heli piro then the HH turns of until you return the stick to the central position then it holds the tail.
My wrong logic was that if the HH was still on whilst you tried to turn the heli then the heli simply wouldent turn at all.
Do you understand what i mean by if you only barely touch the rudder stick it is enough to cause the red light to go off? thats what I was wondering about, as I was thinking that durin flips even the slightest accidental touch of the rudder could cause the tail to blow out, and I dont mean an obviously big rudder stick movement but even less than 0.5 mm of stick movement.

Even us oldies can Heli. Chris. Perth Australia
05-10-2008 05:34 AM
 
 
Spitfire1
Senior Heliman
Location: Perth Australia

I v2 with 3d head upgrade, longer tail blades, 1050 kv mot I think, but I have a 4s 3700 megapower, I know that the newer megapower 4s that is 20c is 4000, so I have a sneaking suspicion that it might only be 18c, or even worse 15c, if its 15c its not doing to badly powerwise, im hopeing to get either a flightpower or xp outrage pack this week to see if it helps, I bought this heli used, ill post a pic, but its phil lennerts old heli if anyone knows what it is, it has the battery angled as a post to sliding underneath, direct servo to swash with the elevator at the back, ail and pitch are on the front, I think this could be what they mean by trex style but not sure.
Ill post this first and then try edit a pic in just incase my attempt at the picture dont work.

Even us oldies can Heli. Chris. Perth Australia
05-10-2008 05:43 AM
 
 
drdot
Elite Veteran
Location: So. California, Orange County.

fwiw..

See if you can get some info on the speedup pulley...On 4s my buds' HDX is a little lethargic, and doesn't really have the oompf for serious 3D...The new t/r parts allow backwards loops, but without the speedup any collective mismanagement really did bad things to the tail...
We've discovered the head on his heli does not have enough pitch range toallow much if any cyclic with collective...the binding is also a serious problem for 3D...Your head may not have this issue...

John.
05-10-2008 05:53 AM
 
 
Spitfire1
Senior Heliman
Location: Perth Australia

yes I have heard about the lack of response in cyclic and also pitch range, I was very dubious.
I havent tried to get anything more than 10 up and down so I cant coment on how much range is there, but im sure I could get another 1 o 2 degrees so maybe 11 to 12 neg and pos which has always seemed enough for me( I know some of the trex guys are running as much as 14 degrees though!!)
As for as the flip and roll rate, I know some peoplle must have had problems because ive heard alot on this issue but I must be lucky as it seems to be fast enough for me, I heard stories that the cyclic response on these hdx was painfuly slow and this frightened me from buying one for a long time, but my one seems way fast enough.
I know that my head has some very minor modifications, lighter paddles, longer and thinner flybar the usual..e.t.c and all I can say is it seem ok to me.
Also like you say I think 4s may be a bit on the low side, but im surea 25 or 30c 4s should make a bit if difference to the bogging. at least I hope, if not maybe go to 5s or 6s.

(maybe i did not mention I think my 4s might be as low as 15c discharge, maybe 18, not sure.

Even us oldies can Heli. Chris. Perth Australia
05-10-2008 06:06 AM
 
 
drdot
Elite Veteran
Location: So. California, Orange County.

fwiw..

The head on my buds' heli simply doesn't have the combined collective cyclic range without binding that other "3D" helis such as the T500 have...It's more like an FAI head, VERY smooth, not affected by wind much, but must be babied around 3d maneuvers...Higher C rating packs will help, but the original head isn't a 3d monster...

John.
05-10-2008 06:45 AM
 
 
mchammer
Senior Heliman
Location: California,USA

Amen to what jackheli said,check to make sure your gyro sensor is securly taped.if it is a little loose it will do all kind of crazy things to the tail.I had one come loose last week

Peace Through Superior Firepower!!!
05-10-2008 06:56 AM
 
 
Spitfire1
Senior Heliman
Location: Perth Australia

probly not a 3d monster because ime not exactly a 3d monster yet.
Ive just started doing stationary flips and rolls about 10 ft of the ground (you heard right 10 ft not 2ft)
But it seems to roll over pretty fast, i mean its not so slow that it frightens the **** outa me.
Im doing 3d flying on g3, i got aileron tic tocs, flips, inverted down packed, but cant do piro flips or backward stuff, the hdx seems quik enough to be able to do what im doing on the sim, that is when i get round to trying it low down, I cant see it doing aileron tic tocs with the 4s pack, but that being said someone just refered me to a online vid of a hdx doing some very hard sustained 3d and according to the title on the vid the guy is running an outrage 25c outrage, so im hoping if a grab a 25c pack it should be not to bad, thats not to say its too bad now, but now ive been starting to do more agressive manouvers I can see that this 18c pack isent going to cut the mustard, it may even be a 15c I dont know, will just have to see how a new 25c pack goes.

P.S only thing about the trex500 is that its more expensive than the trex600..sure the batteries cheaper but nah just seems like they set the price too high for what it is basicly a small electric heli, the hole reason I stopped flying my 50 was to bring the crash costs down. I know theres a lot of hype on at the moment about 500 size becoming the next craze due to align releasing the trex500, but I just think its too early, they could end up being a flop as far as sales a concerened, I hope not but.

Even us oldies can Heli. Chris. Perth Australia
05-10-2008 08:06 AM
 
 
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Main Discussion > Tail blowing out in stationary flips, any suggestions??
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