rrTV-PHOTO   New HD TV
HOME   rrTV-PHOTO   GALLERIES   MY GALLERY   HELP-FAQ
myHOME PM pmRR MEMBERS 349 ONLINE 25 EVENTS SEARCH REGISTER  START HERE
 
4 pages [ <<    <    ( 1 )     2      3     NEXT    >> ]1754 viewsTOPIC CLOSED
Mikado Modellhubschrauber . GrandRC . CanoMod

.
.
Off Topics > Do you use a governor?
 
 
cwright
Veteran
Location: Blossvale New York

Just wondering how many use a governor of some type? They sound like they are the perfect choice for doing 3D with, Also wondering if you use the governor do you still need to use the pitch and throttle curves?
Thanks, Chuck
12-06-2003 12:35 AM
 
 
Dragon2115
Key Veteran
Location: New England

Ditto
12-06-2003 12:40 AM
HOMEPAGE  
 
 
slant911
Veteran
Location: Las Vegas, NV. Hirobo, Magnum Fuels, MAH

Once you have one you never go back...


John B. McNamara
12-06-2003 12:48 AM
HOMEPAGE  
 
 
choppengruven
Key Veteran
Location: Flagler County, FL USA

I am not using a gov on either of my machines. And thus far have found no need for one as my pitch/throttle curves have been just about balls on.

My cousin is running a P-Max with a C-Spec (8.18) and has a bicycle tach on the headspeed and is consistantly in the 1850-1875 range. With my setup knowledge and his flying skills we really have that thing screaming, and w/o over speeding the engine.
12-06-2003 12:50 AM
 
 
FlyRacer
Heliman
Location: germany

Have a GV-1 in my raptor 90 and will not miss it...
12-06-2003 01:09 AM
 
 
Marty
Senior Heliman
Location: Australia

I use a TJ.
I know how to set up throttle curves but I've become lazy.
I now only have the two bottom points on my normal throttle curve set to smooth the throttle transition into the governing range.
Apart from that, I haven't touched or tuned any other throttle curve point except to make points one and two a generic 100% and 75% (from 0% and 25%) respectively in idle up 1&2.
If my optical sensor fails the heli will overspeed for only the time it takes to back off the collective and land.
I'm very happy the way it is running and I just coudn't be arsed to go through the whole setup again.
12-06-2003 02:45 AM
 
 
HelicopterJohn
Key Veteran
Location: Seffner, Florida (Just East of Tampa, Florida)

GV-1's

Run them on both of my Raptor 50 V1's.

They work great.



OC Bob's Gathering #2 was a Premiere Event. Pictures in my Gallery
12-06-2003 02:54 AM
HOMEPAGE  
 
 
Vertical Limit
Senior Heliman
Location: Pennsylvania

Take a Min. Aircraft tach and watch your bird in flight with your so called perfect setup and I bet you don't hold the head speed when you push full pitch and cyclic together.

Do it with a Govenor and you will not change head spead abit.

If you think I am Full Of It. Try it with the only tach that that can be used by a buddy in flight. It's the only true test.

Mike
12-06-2003 03:29 AM
 
 
choppengruven
Key Veteran
Location: Flagler County, FL USA

Quote 
If you think I am Full Of It. Try it with the only tach that that can be used by a buddy in flight. It's the only true test.



OK, since I am the only one posting here about no gov.....I will say that you are full of it.

There's no if's and's or but's about it. If you have a tach that is being pulled straight off the mainshaft, there's no way you can get a different reading with ANY optical tach! And just for the sake of fulfilling your ego, the bike tach has been backed up by an optical one.
12-06-2003 04:22 AM
 
 
TerranAce007
Veteran
Location: Texas

Quote 
Take a Min. Aircraft tach and watch your bird in flight with your so called perfect setup and I bet you don't hold the head speed when you push full pitch and cyclic together. Do it with a Govenor and you will not change head spead abit.


That doesn't really make sense. The engine can only put out a certain amount of power, so if it bogs under full collective and cyclic without a governer, putting a governer on won't make a difference. It may keep the headspeed constant, but I don't think it will give the engine more power...

USE LINUX!
12-06-2003 05:17 AM
 
 
HoseA
Heliman
Location: Tyler, Texas

Got a GV-1 on my Vigor CS w/OS 70 and wouldn't be caught with out it. Works great every time.

Joe

[b][color=red] Jetcopter SX
Vigor CS [/b][/color]
12-06-2003 05:23 AM
 
 
Alistair
Key Veteran
Location: no where land

i am going back to no governor (used a GV-1).

with the proper curves and swash mixing, you will hold better head speed than with a governor. reason for this being, the governor responds. in the case of the Gv-1 at a .22 second time. mixing comands. governor is a luxury and/or for the lazy.

i run 1850 on the head, and if i wanted to (governor on) i could lug down to 1100-1300 easily. no machine will take full coll. and full cyclic with out lugging down.

going back to mixing.. i may just find that i am too lazy and go back to using a governor. i like the feel of mixing though.

this, i refuse to believe...

"Take a Min. Aircraft tach and watch your bird in flight with your so called perfect setup and I bet you don't hold the head speed when you push full pitch and cyclic together.

Do it with a Govenor and you will not change head spead abit."


cheers
12-06-2003 06:09 AM
 
 
Vertical Limit
Senior Heliman
Location: Pennsylvania

First of all a bike tack, POS as it is will not give you a reading through the entire flight. it will give you a max reading and thats it off the main shaft or not. If you could read I did not say the reading would be different, it would not be true throught the course of the flight.

And you are also wrong about the full pitch and cyclic, if you have a GOV. it will make up for the throttle curve to handle the engine output at a constant rate.

Without a GOV the engine can and will bog if your curves are not perfect and even at that your engine RPM will fluctuate. The only way to keep a constant RPM no matter where the sticks are is with a GOV.

A Gov. is not there to give the engine more power, and TERRANACEOO7 if you need to use the words

"but I dont think"

in your post then you should not speek to the answers you don't know.

Mike
12-06-2003 06:10 AM
 
 
Alistair
Key Veteran
Location: no where land

i think you've got the miracle engine?

GV-1 on; if i go FULL cyclic, and FULL collective, the engine LUGS DOWN.

MIXING ON; if i go FULL cyclic, and FULL collecitive, the engine LUGS DOWN.

there is no stopping it. unless you learn to keep both stick out of full deflection at the same time.
12-06-2003 06:16 AM
 
 
Vertical Limit
Senior Heliman
Location: Pennsylvania

Have you ever watched a bird for the full 8-10 min. under a tach and see that the RPM does not change I will say within +/- 50rpm Let me see that with your perfect throttle curve, not going to happen.

I also think you need to know how to tune your engine if you cant accomplish this very simple result with a GOV.

Mike
12-06-2003 06:20 AM
 
 
Alistair
Key Veteran
Location: no where land

here is why the governor does not make up for the throttle curve........

gv-1... you are mashing the sticks, or just flips with collective mashing. full cyclic and collective... whatever it may be. the gv-1 will hold WOT.

mixing... you are doing the same as above. you are in idle up. that means your min. throttle is somewhere 'round 63%-65%... likely it will be higher. your swash to throttle mixing is at 23% min. likely to be higher... somewhere 'round 30%. lets even say that you are particular in your set up and you add 5% right tail to throttle to help the engine in right piro-flips.

you go full collective... in your throttle curve that would be 100% throttle. governor would not be able to add any more throttle. your go say, 7 degrees collective. so you are probable using some some 75%-85% throttle or there abouts. then you add just a smidge of cyclic... remember you have at least 23% mixing. therefore you would be at 108% throttle..in theory anyways. obviously you would only be at 100% throttle. or how 'bout 7 degrees collective, a smidge of cyclic, and give right tail. in theory that would put you at 113% throttle. but really, you would only be at 100% throttle.

right, so are you implying that a governor will give you 120% throttle when you need it? if that's the case, i want your governor.

again, mixing is faster that a governor. governor reacts, mixing comands. as soon as you give cyclic imput, you are giving throttle at the same moment.

go try it on G2. better yet, do it on your model.

cheers
12-06-2003 06:28 AM
 
 
Alistair
Key Veteran
Location: no where land

i have watched helis with their rpm. i've never seen one lug no more than 50 rpm on the head no matter it being a governor or not.
12-06-2003 06:29 AM
 
 
Vertical Limit
Senior Heliman
Location: Pennsylvania

What is your brain on? The throttle can never be more than 100% if your goal is 1800RPM 1900RPM I don't care what it is when you push the numbers you are going to which is no problem the engine will lugg before your throttle gets to 100%.

So what the Gov. does is makes up for the lugg by increasing your throttle to what is needed to carry the same RPM. before you ever reach 100%

This is simple stuff,

if like the trouble of mixing, then mix on, but keep your false comments to yourself.

Oh by the way I must be missing the delay as my Heli's RPM doesn't change in flight.

12-06-2003 06:38 AM
 
 
Alistair
Key Veteran
Location: no where land

that was the dumbest reply i've even heard.

go back and read my post again.

that bit 'bout how your head speed doesn't change. bullock. the end
12-06-2003 06:41 AM
 
 
Vertical Limit
Senior Heliman
Location: Pennsylvania

You must not fly because I can watch a heli all day long bog from 1900 RPM to 1200 RPM in a heart beat when the sticks are pumped right.


If you want to battle this fact over doing figure eights all day long at the field, don't waste my time.
12-06-2003 06:41 AM
 
 
4 pages [ <<    <    ( 1 )     2      3     NEXT    >> ]1754 viewsTOPIC CLOSED
Futaba-RC . A Main Hobbies . Boca Bearings

.
.
Off Topics > Do you use a governor?
 PRINT TOPIC Advertisers 

Subscribe to This Topic

Friday, January 9 - 7:32 am - Copyright © 2000 - 2009 runryder.com | email | link to rr | runryder needs cookie