View Full Version : Throttle Stick Position
Ray_B
10-04-2005, 10:38 AM
Hi All, What's best for beginner, to set up your transmitter with the throttle stick all the way down or setup with it midway?
Both conditions with motor not running?
Heli is a T-Rex
Tnx
Ray
DebianDog
10-04-2005, 12:34 PM
Down is always 0% throttle (except in idle ups). I have never heard of setting it up any other way.
See the setup section here:
http://www.trextuning.com/
Ray_B
10-04-2005, 01:02 PM
DebianDog, OK and I've not either, but let me add.
When I fly the T-Rex using my Reflex Sim, I always start with the
throttle stick in mid position. I realize the motor is running (idling) but this is the kind of setup I'd like to duplicate with my actual T-Rex. I'm getting along quite well hovering with Reflex, tail in/nose in/left & right sides. Also circle field clock wise and counter clock wise
Now I'm utterly confused about duplicating this, cuz I can't/won't take it
outside and hover, I don't think it'd be wise at this point. Also the bloody
401 gyro isn't set yet.
I've been rechecking some things on my setup this morning having found more info on the internet and I may have other issues. This one being
I read that when you advance the throttle (motor disconnected) the swash should rise level. This is NOT happening with my setup, the swash is
tilting and if it rises at all it's almost imperceptible. Yet I've convinced myself that servos & ball links are correct. Maybe I shouldn't read so much!
Oh concerning the swash issue, my T-rex is the eCCPM.
Oh well, sure would like to get it outside before snow starts.
Thanks,
DebianDog
10-04-2005, 01:19 PM
You usually set it to hover at around mid-stick so when you go into idle-up (lots of throttle and negitive pitch curves below mid-stick) you have a starting and ending point. This also gives you more stick to land with ;)
Well there is no "reason" you can't set it up your way but you could never hand your radio to one of "us" without a big -WARNING-
Your throttle points would just be 0-0-0-75-100 but I really do not see the point of it.
:dontknow
Ray_B
10-04-2005, 02:49 PM
Hi Again DebianDog,
Your throttle points would just be 0-0-0-75-100 but I really do not see the point of it.
Then I'm going to do just as you've suggested regardless of how I've got it in the Reflex sim.
When you've time would you comment this also.
I read that when you advance the throttle (motor disconnected) the swash should rise level.
This is NOT happening with my setup, the swash is tilting and if it rises at all it's almost imperceptible. My T-Rex is eCCPM if that makes any difference.
Thanks,
Ray
DebianDog
10-04-2005, 04:02 PM
When you move the throttle stick with eCCPM up all three servos should move, in unison, to move the swash plate. It should be very very noticeable and your pitch (on the blades) should change from negative to positive.
You should also be able to have the motor connected and have the throttle hold switch functional. i.e. You can move your swash up and down and not engage the motor. I would -HIGHLY- suggest you get someone to help you set up your radio properly. Use the pilot locator and see if there is someone in your area (http://www.pilotlocator.net/index.php)
Ray_B
10-04-2005, 04:57 PM
DebianDog, Sorry.
WillJames
10-04-2005, 08:17 PM
I get he HAS to do that with Reflex because the governor is turned on in his reflex model. Same thing withthe Nitro helis, if you run the govvernor on, the blades never stop no mater if your in normal or not. That is NOT how it is in real life Ray unless you make a mistake with your radio programming.
Some people do however run no normal mode (flat line curve at 0% all the way across) and have their heli soft start when they switch to I1. I don't use this method because I fly glow as well and I don;t want to do anything differently between helis.
fitenfyr
10-04-2005, 08:56 PM
Ray,
I don't think DebianDog was trying to sound like he was putting you off.
What you are describing is a very typical problem for a first time heli pilot.
The electronic mixing in the radio has to be set correctly for the eCCPM system to function correctly.
What you have there is a bad mix.
Trying to sort that out over the net is a bad idea. It will just lead to a ton more time on everyones part and you don't benefit from seeing it setup in person and learning a bit more about your ship.
If you look in the pilot locator you should find somebody near you that can help. If you don't drop back here and let us know.
We can do it the long way then. :D
Filling out your profile to include a city/state would help a bit in that some people might just find you next door and offer to help you out.
You may be my neighbor and I don't even know it. :D
Ray_B
10-05-2005, 07:29 AM
I get he HAS to do that with Reflex because the governor is turned on in his reflex model. Same thing withthe Nitro helis, if you run the govvernor on, the blades never stop no mater if your in normal or not. That is NOT how it is in real life Ray unless you make a mistake with your radio programming.
Some people do however run no normal mode (flat line curve at 0% all the way across) and have their heli soft start when they switch to I1. I don't use this method because I fly glow as well and I don;t want to do anything differently between helis.
Baja170, Your comments are well taken and I won't any longer be trying to duplicate the sims setup with my T-Rex. Seemed like a heck of a good
idea (to me) at the time.
Thanks,
Ray
WillJames
10-05-2005, 08:18 AM
THere are a million ways to do things, and the inability for Reflex to have the engine at idle with the blades stopped in normal mode AND the ability to still use governor in teh radio program is a flaw and one of the things I really prefer about G3.
You would have no way of knowing this quirk of Reflex ahead of time Ray.
Basically, you want to setup the heli in the most simple way for you to be successful with it. Getting the help of someone experienced is the easiest way to do this, but there are plenty of people who figured everything out on their own. I wa not one of them though.
Best of luck with your new heli!!!
DebianDog
10-05-2005, 10:28 AM
We will get though this Ray. No worries ;)
Ray_B
10-05-2005, 11:01 AM
DebianDog & Everyone, Good Gracious the tangent I got off on yesterday is no longer a problem The swash not rising correctly etc. with application of throttle.
I've gotta confess I didn't look for anything simple that was causing my problems as I was sure it was something very complex in nature. There was no way I'd overlooked the most obvious.
I'm not about to admit that the aileron servo needed to be reversed but try it in your setup and carefully observe the results.
Oh well, onward and upward.............I hope!
Ray
DebianDog
10-05-2005, 11:14 AM
If you want some REAL fun try reversing the throttle servo on a OS Hyper 50 and starting up the helicopter. I can tell you... life gets exciting real fast. :shock:
Luckily I had a "death grip" hold on the head. :D
svein
10-05-2005, 12:04 PM
DD: Try forgetting loctite on the throttle-arm on your TT50. Gives you a similarly interesting time.
To quote Terry Pratchett: "There's a curse: They say 'may you live in interesting times'". I'd rather have a boring time with the reliability-issues of helis.
Ray: To "excuse" Dan a little bit if he sounded like he was putting you off: As you may have seen quite clearly, there's about a million things that can be done wrong when setting up your heli. Main reason Dan was asking you to find someone to help look your heli over, is YOUR safety. Take one guess at what would happen, should something fail in your swash plate setup, and place your face in a close encounter of the third kind with your rotor. I can give you a hint: "Taco!".
From the experience I have with (arguing with) Dan at another forum, I can personally vouch that he was sincerely only trying to help.
//Svein