RunRyder RC
 1  Topic Subscribe
WATCH
 1 page 970 views POST REPLY
HomeAircraftHelicopterBergen R/C Helicopters › GV-1 compared to new rev-limiters in gasser...
12-08-2004 07:19 PM  13 years agoPost 1
gigi

rrVeteran

Port-au-Prince, Haiti

My Posts: All  Forum  Topic

There's a huge discussion on the main board about the benefits of the Rev-Max vs the Rev-Lock, and how they're heads and tails better than the TJ Pro on the all-out 3D nitro machines..

http://www.runryder.com/t140456p1/

That's all fine and dandy, but I start worrying when they describe the GV-1 as a slow, obsolete, lagging heap. I spent the bucks for one, (which is still not in the heli, as it's sitting in NYC until mid-december!), and worry I made the wrong choice now. (That's me, I'm working on it, but it's not easy )

So I have a few questions about that GV-1 on the gasser:

1) Does the GV-1 look at the throttle curve to anticipate where the throttle should be, like in a sudden increase of throttle stick? I assume the answer is yes, since I had seen something to that effect, but I want to know how effective is this feature on the GV-1?

2) Does adding cyclic-to-throttle mix sharpen the response of the GV-1? In other words, is it worth taking the time to program it in?

3) I keep hearing how slow the GV-1 is. Does it not matter in the case of our gassers, or are those other nitor folks a bit too anal about their rotor rpm?

4) Finally, considering the newer limiters are about half the cost of a GV-1, is it time to reevaluate the choice of the GV-1 as the governor of choice for the gassers?

I guess I'll find out the answer to these questions by the end of the year, with my own GV-1 / Stator Gator, but I wouldn't mind some feed-back.

Thanks for any comments!

Gigi

My heli spending has gone way down since I got a Honda 919 :-)

PM  EMAIL  GALLERY  Attn:RR  Quote
12-08-2004 08:34 PM  13 years agoPost 2
Ron Cosby

rrApprentice

Shreveport, Louisiana

My Posts: All  Forum  Topic

Based on my current experience with the GV1 and Stator Gator in my gasser, my feedback to your questions is:

1. No - The Gv1 does not look at the curve to anticipate more throttle input.
2. No - The Cyclic to throttle mix would have no effect if the GV1 is on and working. You do need to program in a throttle curve in case the GV1 goes offline for whatever reason.
3. No - Its not too slow to be a problem. I've 3D'd mine on the GV1 and its fine.
4. Personally, I like the GV1 because of the display, IMHO, its worth the $$.

Hope this helps,
Ron.

PM  EMAIL  GALLERY  Attn:RR  Quote
12-09-2004 12:53 PM  13 years agoPost 3
Malorie

rrElite Veteran

Paw squared, MI

My Posts: All  Forum  Topic

I am in complete agreement with Ron.

Pete Niotis and I had a discussion recently about the effects of the limiter compared to the GV-1. I think the conclusion was that unless you are a radical 3D'er, you probably wouldn't know the difference between the two (other than the need to program godd throttle curves). I know the GV-1 works fine for 3D on both my 90 and my Gasser.

I have been considering experimenting with a cyclic to GV-1 gain channel mix to get the GV-1 ahead of the load. That would in effect have the same result as if the GV-1 were to watch your throttle curves.

As usual, CY is ahead of the curve here. He runs a limiter that only kicks in if he bogs the machine or overspeeds the head and comes off the pipe. If neither of these things occurs, he is running on the curves. Of course, this is a unit designed by his dad, so you and I can't have one and it will probably never hit the market.

Relax and run your GV-1. They work great.
Malorie

Life's a journey, NOT a destination.

PM  EMAIL  GALLERY  Attn:RR  Quote
12-09-2004 03:28 PM  13 years agoPost 4
gigi

rrVeteran

Port-au-Prince, Haiti

My Posts: All  Forum  Topic

Thanks for info...
Well, the money being spent, I'm going to enjoy the GV-1 and Stator Gator, when I get them around the 16th. But are you guys sure the GV-1 doesn't look at the throttle curve whatsover? I ask because of this posting, 3/4 of the way down, by T. Fiddler.

http://www.runryder.com/t135529p1/

So what give?

I know what I'm going to do: Relax, and enjoy my GV-1, whether it's an expensive, obsolete dinosaur or not . And I'll programt beautiful curves in case it either goes on the fritz or uses them to look ahead.

Gigi

My heli spending has gone way down since I got a Honda 919 :-)

PM  EMAIL  GALLERY  Attn:RR  Quote
12-09-2004 04:49 PM  13 years agoPost 5
AGRAV8

rrProfessor

Mosquito Coast......Houston Texas

My Posts: All  Forum  Topic

Agreed
Gigi, there is nothin wrong with your gv-1. Like you said, RUN IT !

PM  EMAIL  GALLERY  Attn:RR  Quote
12-09-2004 05:12 PM  13 years agoPost 6
Ron Cosby

rrApprentice

Shreveport, Louisiana

My Posts: All  Forum  Topic

I don't believe the GV1 looks ahead for 2 reasons, One, there is no documentation about that in the manual. It DOES have to know the hi, low and mid stick points.

http://www.futaba-rc.com/manuals/gv-1-manual.pdf

The other reason is because I deliberately set my GV1 speed about 100RPM higher than the curve. I know the GV1 is working when I hear the speed increase. If it looked at the curve, seems to me it would try to slow down. Next time I fly I'll set a flat curve and verify that.

PM  EMAIL  GALLERY  Attn:RR  Quote
12-09-2004 05:23 PM  13 years agoPost 7
Wally

rrVeteran

San Diego, CA

My Posts: All  Forum  Topic

I'll go against the grain.

I've been running the rev-limiter in my Bergen Gasser for three weeks now, and it is a MUCH snappier and better performing combo.

I am able to make use of cyclic mixing, and aggressive changes are just that; more aggressive and quicker responding.

The heli has become harder to bog since I am not waiting for the governer to respond; the lag seems slight, but is much more apparent when your curves are doing the talking so to speak. It has made rolling manuever, loops and circles, much punchier, as well as tic-tocs and snakes...

It sounds different too; which is something Iam getting used too...

The Big Wally

PM  EMAIL  GALLERY  Attn:RR  Quote
12-10-2004 08:01 PM  13 years agoPost 8
gigi

rrVeteran

Port-au-Prince, Haiti

My Posts: All  Forum  Topic

Thanks for the feed-back...
It's happened often enough to me to do what I think is the right thing, only to find out a few days/weeks/months later that other folks knew better than I did...

I am guessing from Warren's post that my fears in this case are justified, because indeed if the limiter works better, AND costs substancially less, well, then I think the wrong choice was made.

Fortunately, sometimes, "good enough" is just that, even if there is "better" elsewhere. So GV-1 it is. Besides, I am more into graceful flight than all-out 3D, and judging from my recent crashes, it seems that might be the way for me

Regards,

Gigi

My heli spending has gone way down since I got a Honda 919 :-)

PM  EMAIL  GALLERY  Attn:RR  Quote
WATCH
 1 page 970 views POST REPLY
HomeAircraftHelicopterBergen R/C Helicopters › GV-1 compared to new rev-limiters in gasser...
 Print TOPIC  Make Suggestion 

 1  Topic Subscribe

Sunday, June 24 - 6:30 am - Copyright © 2000-2018 RunRyder   EMAILEnable Cookies

Login Here
 New Subscriptions 
 Buddies Online