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Simulator software & Zhen Hua PCM-4CH - 5/11/2003 2:54:00 PM   
Dodgey99


 

Posts: 222
Joined: 4/30/2003
From: london, IL, UNITED KINGDOM
Status: offline 		Bacon, it will always pull to the left on take off. All helis do that, particularly small ones , because the blades are rotating clockwise. That's why the HB has one leg longer, to help compensate for this effect. You learn to take off with right cyclic.

I could have got that all the wrong way round, but you get the point! :-)

That's why you really need to observe your trim adjustments in the air, about two feet up.

Also, the training legs will make it near impossible to trim and fly steady. Ditch them if you have them.

(in reply to Bacon2002)
       Post #: 26

Simulator software & Zhen Hua PCM-4CH - 5/11/2003 3:36:05 PM   
Bacon2002


 

Posts: 54
Joined: 4/29/2003
From: RayleighLondon, UNITED KINGDOM
Status: offline 		Thanks,

I suspected that the pull to the left was normal as it seemed quite a natural pull rather than as a result of a problem.

The trim is helping and the general response is improved with slightly longer charges.

In order to get the trim correct in the air it requires alot of right trim on the tail and as a result the tail rotor tends to rotate whilst on the ground while no power is applied or it gives off a high pitched noise as if trying to rotate.

Again I think this is due to the all-in-one being non-adjustable. I have tried setting the transmitter to center trim before switching on but it has little or no effect.

I was hoping to use my Futaba FF6 transmitter to compensate for this but it would appear to be non-compatible with the all-in-one board. I've tried PCM, PPM and changing the crystals but no joy. I think this may be as a result of the shift on the all-in-one being different. Unfortunately the Futaba does not have the option to adjust the shift setting.

Although I could be completely wrong???????

Cheers,

David

(in reply to Bacon2002)
       Post #: 27

Simulator software & Zhen Hua PCM-4CH - 5/11/2003 4:51:03 PM   
Dodgey99


 

Posts: 222
Joined: 4/30/2003
From: london, IL, UNITED KINGDOM
Status: offline 		Glad to hear you are getting on a bit better! I tried taking off with the nose-in just now. Blimey! damn near impossible!! Lots more time on the flight sim needed :-)

The onboard tail mixer is a bit of a mystery. Sometimes I have to fly with loads, sometimes I have to remove it mid flight! I have now put revo mixing on my TX which seems to have helped, but then again, maybe not! One thing I do do now it give the gyro a good 30 seconds to initialise before moving the heli at all. I'm always inputting gentle rudder to keep her in line, but she will hover for quite a while without much rudder input. Sudden changes in throttle always result in tail rotation. The little motor simply can't keep up. I've ordered a high authority motor to deal with this.

I'm fairly sure your TX should work. I'm using PPM. When you say "shift" what are you referreing to?

Also, does you all-in one board have a pot (screw) or two to adjust? I know the picolo boards have 2. One for the gyro and one for the Tail mix. If so, search the web for piccolo setup - I have seen sites that detail getting it all right. As a general rule of thumb, info for the FP (fixed pitch) Picollo (as well as parts) apply to the Hummingbird.

Keep going. You'll get there. I can now hover a good 5-7 minutes with no touch down and plenty of height. I'm now becoming a danger to objects of value higher up in my living room :-O

I'm seriously considering getting a Picollo Pro now as I fancy collective pitch control. :-) Oh dear, must stop spending...

(in reply to Bacon2002)
       Post #: 28

Simulator software & Zhen Hua PCM-4CH - 5/11/2003 5:18:05 PM   
Bacon2002


 

Posts: 54
Joined: 4/29/2003
From: RayleighLondon, UNITED KINGDOM
Status: offline 		Hi,

The board has three pots two are similar in type so they could well be the mixer and gyro. I'll have a look on the web again I found a site http://www.pgoelz.com/piccolo1.html which seems to have lots of info on Piccolo boards but non of the boards shown are the same as the one on the Dragonfly.

Sudden changes in throttle have exactly the same effect on mine and likewise I ordered a high authority tail motor. Can't beleive how much I've spent. Best not think about it or indeed tell the wife.

I've been banished to the garage to fly during the day as our 10 month old baby was showing far to much interest in the helicopter. Still when she goes to bed I get the lounge and the kitchen back. I just got a new car but now it sit outside because I need the garage.

The Piccolo pro was next in my sites, looks good, CP and stuff. I could use the separates and some of the parts I already have and save some money for a change.

The shift I was referring to is apparently the way transmitters/receivers send and interpret the stick inputs, it would seem that some make use of positive shift and some makes use negative shift and some transmitters and receviers can do either. However the Futaba can only do one method and the board does not have a switch to change between the two types so I think one is on positive and one is on negative?????

But I am of course guessing at this. The standard transmitter (Zhen Hua PCM-4CH) has PCM written on it so I tried both PCM and PPM but no joy.

Also I was going to ask in your video you have what looks like a big screen across the wall if you don't mind me asking whats all that about?

Cheers,

David

(in reply to Bacon2002)
       Post #: 29

Simulator software & Zhen Hua PCM-4CH - 5/11/2003 5:32:12 PM   
Dodgey99


 

Posts: 222
Joined: 4/30/2003
From: london, IL, UNITED KINGDOM
Status: offline 		Hehe. The garage... hehe... wish I had one!

3 pots hey? One will be tail mix (your saviour here), one will be Gyro gain (again, your saviour!) and the other...... Possibly a Gyro center setting - I'll search for it now....

Meanwhile...

Don't touch the Pic Pro until you can hover the HB with confidence and control. The Pro will take a lot of damage with a rotor strike, and they cost! Your baby would also not like to get up close and personal with the HB, let alone the Pic Pro!

Don't worry about the money! It'll take the fun out of it :-) I have a LOT of stuff on the way from the US :-)

The screen :-) That's a 9 foot wide cinema screen. It comes off the wall and hangs across the front windows. I have a widescreen projector hanging from the ceiling further back in the room. Hmmm... Now there's a challenge... video in the making with heli by projector :-)

Can't find much about a three pot board out there. Is yours a Hummingbird (Century or Feda?), Dragonfly, skylark...

(in reply to Bacon2002)
       Post #: 30

Simulator software & Zhen Hua PCM-4CH - 5/11/2003 5:44:43 PM   
Bacon2002


 

Posts: 54
Joined: 4/29/2003
From: RayleighLondon, UNITED KINGDOM
Status: offline 		WOW,

I thought my Sony 36" TV was big. (9ft wide yeah that will do it)

Its a Feda Dragonfly mini heli which I think is a Hummingbird without the tails struts.

I have emailed helihobby.com about the conning mod and I'll let you know what they say.

Your quite right I'm a way off the Piccolo Pro at the moment, can only manage 30 second hovers and still having the odd crash and burn.

Having to do a lot of tail adjustment whilst in the air which throws my concentration a little.

Cheers,

David

(in reply to Bacon2002)
       Post #: 31

Simulator software & Zhen Hua PCM-4CH - 5/11/2003 5:54:50 PM   
Dodgey99


 

Posts: 222
Joined: 4/30/2003
From: london, IL, UNITED KINGDOM
Status: offline 		Hey , I like my films :-)

I've done a bit of reading on your heli and it looks like you have an all-in-one board with little nor no Gyro adjustments. Separates will definately help, and they will ALL transfer to a pic pro or similar.

Does sound like you are improving! The learning curve is steep but short. You'll be amazed how much better you are after another 6-10 battery packs! Imagine this, when you have the right bits you will be flying like a pro.

When I sussed my gyro gain out my flying transformed. And don't forget that the micro helis are by far the hardest to fly.

Have fun!

(in reply to Bacon2002)
       Post #: 32

Simulator software & Zhen Hua PCM-4CH - 5/11/2003 6:20:32 PM   
Bacon2002


 

Posts: 54
Joined: 4/29/2003
From: RayleighLondon, UNITED KINGDOM
Status: offline 		Thanks,

I'm getting better although I just smashed my tail rotor in half on the garage door. Doh.

So now I'm using a glued one. I've got a new one on the way and I'm thinking of trying cheaper tail rotors maybe with a direct drive if I can find any.

Parts parts parts.

Have you tried the main shaft mod yet http://www.helihobby.com/html/hummingbird_upgrades.html I've got that order as well.


David

(in reply to Bacon2002)
       Post #: 33

Simulator software & Zhen Hua PCM-4CH - 5/11/2003 6:44:20 PM   
Dodgey99


 

Posts: 222
Joined: 4/30/2003
From: london, IL, UNITED KINGDOM
Status: offline 		hehe , super glue won't hold for long, but selotape does!

Got the mod on order already :-)

keep going :-)

(in reply to Bacon2002)
       Post #: 34

Software for Zhen Hua - 6/22/2003 9:41:30 PM   
jonbar


 

Posts: 15
Joined: 5/12/2003
From: Stanton CA.
Status: offline 		have you come up with any software that works with the Zhen Hua PCM-4CH transmitter? If so, let me know where you got it.
Thanks

(in reply to Bacon2002)
       Post #: 35

Simulator software & Zhen Hua PCM-4CH - 6/24/2003 12:24:42 AM   
jonbar


 

Posts: 15
Joined: 5/12/2003
From: Stanton CA.
Status: offline 		Have you come up with any compatible software for the Zhen Hua transmitteras yet?

(in reply to Bacon2002)
       Post #: 36

Truflight - 6/24/2003 3:28:37 AM   
Plonker


 

Posts: 12
Joined: 6/14/2003
From: Darwen,
Status: offline 		Hi there

The simulator that comes with the kit is Truflight 3D version 2.0

It is 8mb in size. PM me if you want me to email it to you.

_____________________________

up, up and away :D
Plonker

(in reply to Bacon2002)
       Post #: 37

Simulator software & Zhen Hua PCM-4CH - 7/19/2003 12:09:33 AM   
pjdragon


 

Posts: 1
Joined: 7/18/2003
From: whitehall, pa
Status: offline 		I've got my zhen hua pcm-4ch transmitter to almost work with
tru-flite simulator software. My problem is that even though
I'm setting up the channels to controls in tx setup and they seem
to work there, when I go to fly the model the throttle doesn't
seem to work! The rudder, ailerons, & elavators work though! Anybody have any ideas.

(in reply to Bacon2002)
       Post #: 38

Simulator software & Zhen Hua PCM-4CH - 8/20/2003 11:06:20 PM   
thermos


 

Posts: 12
Joined: 8/20/2003
From: Ottawa, ON, CANADA
Status: offline 		Hi David,
Have you found a cable for the Zhen Hua? Where did you get it and how much? Did you get it to work with a sim? was it a shareware version?
Thanks,
Ian

(in reply to Bacon2002)
       Post #: 39

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