new CSM Gyro

i have seen the new CSM 720 gyro in action today, it is the best gyro CSM have made to date

this thing rocks big time

any ideas when it will be on general release?

yea i also saw one fly today it was trully awsome kick the ass of a 601 for shure

How is it better?

no wag, no drift, no pickiness like the old versions, can wind the gain right up.

tail locks like it is on rails

fast backwards no problems

Sounds like a good mech setup to me. I will get one anyways.

i think the wait wont be to much longer..

i can confirm it is one hell of a gyro...

easy set up ...tail lock is awsome...piro consistency is by far the best i have ever used...
this was on a not so great machanical set up...cant wait until i tune the machanical set up...

Regards

Steven Gerrard

CarbonXtreme
AvantRC
V Blades
Magnum Fuel
Align
Spektrum
Thunder Power

I was told it would be close to 6 weeks after 3D Masters, for the 720 to be released ?

Can't wait to try one out

Flybar and nitro kicks electric and Flybarless ;-)

Well you guys have just made my day!!!

The 720 is currently undergoing ongoing hardous beta testing by many well-respected competition proven 3-D pilots and CSM are confident the 720 will be available towards the end of Sept 2005.

Thanx for the tests and great feedback... and keep the comments rolling

RussD.

Hey Russ

I might as well pitch in. I have one of these gyros to try.
Jesus man today it was unreal.
I got the gain up to 130% and no wag.
I was told that the millennium tail system was one of the best re leverage etc. Not into it my self.

I found that I could turn the gain right down to 60% and the lock was still in a rail. To be honest i did not find any problems at that.
I was told that I might expect between 80 and 100%.

What amazed me was the stops. And the piro rate consistency is even better than the 560.
I was using the 8700g,, I am also informed that if I would like to get a 9151 a-la gy601, it will work with that once set!. I really don't think I will bother..
mind you,,, I do have a gy601 in the other machine with a 9251 in.

Si

Smooth 3d should never go out of fashion!

Hi Simon

i am using mine with the servo of a 601 (9251)

I am very pleased with the performance..i flew it the first time on Saturday in a 15mph wind and was really happy to see my piro walls of deaths looking so good with no Whip as you get with a 601 even more when its windy..

should hopefully get out tommorow evening to try it some more.....Cant wait..

Steven

CarbonXtreme
AvantRC
V Blades
Magnum Fuel
Align
Spektrum
Thunder Power

Hi Steve
It is nice to read that someone else sees a slight whip to the tail on a gy601 too.
I know it is the dogs rocks and currently considered the best gyro, but that slight whip took some getting used to when I refitted a gy601 a month or so back.

Great gyro but I can't wait to swap out the gy601 for another 720 one day..

Si

Smooth 3d should never go out of fashion!

Hi Ya Simon,

Very pleased to hear your results and feedback... especially on the low / high TX gain tests. Colin (somehow) managed to remove the burden of high TX gain for Lock and Piro consitency from the control loop. Thus the 720 should lock well down to about 40% JR TX gain and the Rippers are still pretty good How's the RX batt life holding up? Have you noticed any difference in flights per charge?

Yes the 720 will run the 9251 at 760Us Frame Rate and 3ms pulse rate which is selectable in the 'quick set-up' or via the PC interface. It will also run the 9253 / 9254 at 1520Us Pulse rate and 3.5ms pulse rate and the 8700G your running at 1520Us and 4ms pulse rate... so full flexibility of options. Duncan has been running the 9251's for a few months at around 95% TX gain with good flights per charge and no detectable heat in the servos after very demanding flight routines.

Hi Steven,

I was hoping you would notice an good improvement in Piro' consistency and I am very pleased to hear it. Reverse rippers all the way down was good fun on the test models... but not sure how the drive-train would hold out long term

Thanx once again,

RussD.

Oooh, you guys got me going now !

Cant wait to get one in my hands... my new Stratus awaits !

www.liorzahavi.com

Hi.
I have the same amount of flights per charge as i did with the 560.
i can get 4 good flights with plenty of piro work and cyclic pitch work.

I do still to lean towards the smoothy boring stuff so this might be why I get going on for four flights per charge of a 2400 nicad.

With the gy601 I would only get two!.
the machine with the gy601 has just met the floor but that has lipos in, so even with the gy601 I get 8-10 flights per charge. but thats lipos for you innit.

I am going to change the 720 heli to lipos as soon as funds allow. This will mean the voltage might be a tad higher. i would hope this would make no changes to the 720's performance.

interesting that you could go down to near 40% and still have good lock. I did find it a little confusing when I deliberatly played with the gain, loweriing it down and down and no change to the lock.
i could not see a change in anything, not even the stops so I had to stop and have a think.. Was I using the wrong setting in the tranny? Had I plugged the gain into the wrong channel?
Nope, it was going down ok. maybe I am wrong is winding the gain up and up until I got to the 130%. Actually I did ease it back to 120% because one guy reckoned he saw the slightest fast wag on the tail when I absolutly hammered the poor thing backwards down wind.

I don't want to sharped the stops up even more, (if that is possible) as I consider the gears to be the part that suffers. I understand I can play with those, but I am not going there..

I wonder if Steven has played with the stops or just shoved it in like me and gone fly??

Simon

Smooth 3d should never go out of fashion!

Hi Simon,

I am going to change the 720 heli to lipos as soon as funds allow. This will mean the voltage might be a tad higher. i would hope this would make no changes to the 720's performance.

Duncan saw a noted improvement in both collective / cyclic and tail performance when he changed over to regulated Lipos... so no probs at all when you go Lipo!

Yes the lock is no longer critical on high TX gain... but I did find the stops suffered at lower TX gains... your set-up must be very good not to note softer stops at low TX gain!

I will be very interested to hear how much difference you note between the 9251 and current 8700G set-up! I won't prompt you on what I found... but will wait to hear how you find it?

Hi I3DM,

Patience needed... takes a little longer to get samples across the world... rather than just round the corner

RussD.

So other than the piro lock on lower gains and temperatuere stability what else is different form the 560V4?

I guess I am stuck with mine band new...

It's hard to see the light when the fridge door is closed

hi guys,i have an old cms 560 head locking gyro and i think it works great. where can i find more info on this new gyro that is coming out from cms?

It Looks like CSM is back to take the crown

Hi.

your set-up must be very good not to note softer stops at low TX gain!

I just cannot get too critical with these stops. Maybe my head / eyes aren't quick enough to analise a stop when it happens in a split second.

At the mo, I think you (Russ) might consider the stops a tad soft. I reckon I could alter things and get them so hard and crisp, but because there is no bounce as far as I see, then I am happy to give the gears a chance.
I also back off slightly on the piro rate.
I don't think I shall lift this unit out of the 8700g setup combination. That would mean cutting the wiring back out, and putting the 560 back in .. nar.. I'll enjoy this combo and wait till they come out to try one in the gy601 heli with 9251.
Clearly from Steven's comments it is still rocking as he is used to a gy601 and already appears to prefer the 720.

Can Colin make a clear box for it!!.. It looks real techno smart as it is.. Love it. Like a wing on a balsa plane. If the work is a bit dodgy, cover it in solid colour. If it is a piece of artwork, the transparent solafilm is the order of the day.. What you reckon?

So other than the piro lock on lower gains and temperatuere stability what else is different form the 560V4

The lock as far as I am concerned. I had the v3 560 for ages. With a honking 90 it might slightly move out of line under changing torque loads. I tried the v4 upgrade and it de-tracted things for me. So instead of asking for it to be turned back to a v3 or investigating quite why, I fitted a gy601 I had sitting around. I took that out because I was only getting two flights per charge, but now I have lipos in that machine.

Gy601 for me locks real good. Best I have had, but the piro is nothing like as consistent under load as 560v3.

Well this 720 is even more consistent than the 560 for me. Very hard to perceive when the 560 was so good, but I def think it is even better.
The lock I think is even better than my gy601 machine which I can and do back to back flying to compare.
I have an 8700 on mine with impressive results which is also a plus. how long the 8700 g will last with the added work it is doing to gain these improvements is something I will find out over the future months.

so for me, the stops are far better, the lock is better than even the gy601 and the piro rate hold is better. And at the moment is is no bigger than a match box ish, all in one unit.

I will be very interested to hear how much difference you note between the 9251 and current 8700G set-up! I won't prompt you on what I found... but will wait to hear how you find it?

Well I really cannot think how it can be better.the feel is so nice too. But one day I will find out.

It Looks like CSM is back to take the crown

It would be nice would it not seeing as Colin invented heading lock gyros with the first ever being the 360. Naturally all the others saw it and jumped on the idea. So the concept / invention was csm british. It would be nice if they could make the best example to suit the changing heli scene and demands.

Si

Smooth 3d should never go out of fashion!

OK chaps a general question and a specific question..

1. CSM tail servo ?????

2. I've just about given up with the 560v4 / Volz combo in my 3D MP I just have no faith in it. (just noticed Simons comment on the v4 de-tracting, certainly it hasn't improved this combo) also note Nigels comments in the 3DMP section.

One option is a full size tail mounted servo with the obvious choices being (now) a 8700g or wait a bit (I'm good on patience) a 9251
I'm pretty sure the new 720 will go in when it arrives.

So considering the 8700g has a bit of a reputation for wearing and it's an electric 50 sized rather than slimey 90 sized any opinions?

I really am happy to wait as nothing much is happening flying wise in my life right now.

Paul
AKA Ting Tong
.... ...... ...from Tooting