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HelicopterMain Discussion › Kosmik or V-bar gov
05-28-2013 02:10 PM  4 years agoPost 1
Helijockey

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150 miles from somewhere

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Guys I've read a number of threads where they say the gov of a fbl unit holds the headspeed much better than an esc gov. Then the guys using a kontronik esc particularly the kosmik say it has the best gov. Since this will be my first v-bar and kosmik I'm a little confused as to which route to take I'd really like to hear ur views. Btw previously I've been using beastx and cc esc.

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05-28-2013 04:02 PM  4 years agoPost 2
RyanW

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Edmond, Oklahoma

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Both are true

Active and reactive gov. I have flown really good versions of both and I can say hands down the best active gov I have used is the V-Bar and the best reactive gov is the Kontronik.

In general a reactive gov responds to a change in head speed, therefore it can never really be ahead of the curve. You can set the model up so that it will overspeed a bit then the load pulls it down to the desired rpm. This is really just a band-aid.

The Kosmik governs so well that I am not entirely convinced there isn't something inside that looks at the throttle position and it pre-adjusts the gov. It is by far the best reactive gov I have used.

The V-Bar takes it to another level. It looks at all of your inputs (because it can) and can adjust the throttle output before the machine actually loads up in the maneuver.

I don't think the Kosmik plays well with the V-Bar gov. I could be wrong, but everyone I know who is running the Kosmik is using the internal gov. When it comes down to it I haven't really missed the V-Bar gov on the Logo 700Xxtreme.

-Ryan
Mikado USA, Kontronik, Opti-Power, MKS Servos

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05-28-2013 04:26 PM  4 years agoPost 3
cdrking

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Seattle

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I don't think the Kosmik plays well with the V-Bar gov.
I asked Kontronik directly and the V-bar governor does NOT work with the Kosmik line of ESC's.

I have a Kontronik (not Kosmik) on one machine and it works excellent. I have a Hobbywing ESC with V-Bar governor on another machine and it works better than excellent. The RPM control is so smooth and precise.

Jeff

To hover is divine, the alternative is rather PLANE.

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05-28-2013 04:37 PM  4 years agoPost 4
Havoc

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Ky.

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I've used the HeliJive governor and VBar. You'll need to bump up the collective look ahead parameter (don't remember the exact name) to get similar performance with the vbar but you can also soften it for longer flight times if you don't need smack down style. Hard to find fault with the kontronik but I thought I might like bailout ability and the HeliJive bailout times out.

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05-28-2013 06:08 PM  4 years agoPost 5
Futura SE

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Fayetteville, Arkansas

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A Kontronik Jive is a excellent ESC. It's one chink on it's armor is simply that is is SO concerned with overspeed in hard 3D many times you don't get full power. The fraction of a second there is a overspeed the jive backs out of the throttle and then you slam the pitch it may can give full power almost instantly as a jive has a fast processor but the motor can't spool up under load that fast. Thus you get decreased power till you let off the pitch for a split second and let the rpm recover. Weaker your batts the worse the effect.

This is NOT a Jive issue. It is the limit of what a external governor can simply do. Period...

A Kosmic is slightly better. K tuned it to not be near as concerned with an overspeed condition. It will allow some ON PURPOSE so when you dump the pitch you are not down on throttle like the Jive does. It is still REACTIVE. Better but still only reactive.

V-Bar Governor....

Ah..... My Favorite.... I will never run internal gov again. EVER...

Since the vbar is in control of all the axis it can add throttle before it is needed to make sure a under speed condition never occurs and decrease throttle to prevent a overspeed as well. The vbar can be tuned to allow some overspeed desirable for hard 3d or it can be tuned to allow none. Your choice...

Vbar can see pitch being added a respond quicker as it can and does make preemptive changes. Something a external gov can NEVER do.

Norman Ross Jr.

Team Mikado USA -- Team Insane Canopy -- Team Scorpion -- Team Evo Power Batteries

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05-28-2013 06:17 PM  4 years agoPost 6
Dr.Ben

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Richmond, VA, USA

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Just as a reference:

The only Kontronik ESC that supports and external governor is the HeliJive.

The Kosmik more or less doubles the timeout interval for its auto bailout function. It should satisfy most unless you want to recover from a >20s auto.

Ben Minor

Peak Aircraft/Team Minicopter Team Futaba Team Kontronik USA

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05-28-2013 07:46 PM  4 years agoPost 7
Helijockey

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150 miles from somewhere

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Guys thank u, I now have a better understanding of the difference between the esc and fbl gov I'll be trying the v-bar gov now and the cc edge 160 with it.

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HelicopterMain Discussion › Kosmik or V-bar gov
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