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Zoom › Shogun standard head speed with brush motor?
03-09-2006 02:33 PM  11 years agoPost 1
Wardy

Heliman

INDONESIA

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Hi I have the zap400v2 with 2100mh 3s 18c lipo with quark33amp esc and a reno 3700kv donk so my head speed can go through the roof,well at least plenty fast enough to blow up the tail system,live and lern.
Any way my reason for asking about the standard head speed is that i am a newbie to heli's and i am wondering if the standard head speed would better suit a beginner if not what would be comfortable IE not to docile and no to hypo i am currently running 2000 on the head and i will have to change motor to go any slower than that.oh and what head speed does this thing need to hover at the recomended 3dg pitch i am yet to achieve this is it just make believe or have i got something very wrong? any input would be greatly appreciated.
regards Wardy, (AUSSIE FROM WA LIVING IN BALI INDO
If you read this Gorn is there a zap parts supplier in WA?

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03-09-2006 02:50 PM  11 years agoPost 2
gorn

Elite Veteran

Western Australia

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Hiya Wardy!
Rather suprised to see my name mentioned at the bottom of your post
In answer to the parts question, yes there is. 2 places I know of.
One is Discount Hobby Supplies in Willeton, and the other is Stanbridges Hobbies in East Perth.
http://www.discounthobbies.com.au/
http://www.stanbridges.com.au/
Oh yeah, and for aftermarket bits go to http://www.microheliworkz.com.au
He's here in Perth as well, good prices for Microheli gear. Also sells wooden blades that they make too.
Dont know about your headspeed question. I get a lil lost in all the calculations still lol.
You shouldnt go any slower than 2000rpm anyway, as you'll start to lose tail response.
My guess would be 2200rpm for starters. 3d starts at about 2400-2500.
Hope this helps you out with your parts anyway.

For the love of the hobby

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03-09-2006 03:31 PM  11 years agoPost 3
Wardy

Heliman

INDONESIA

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Thanks Gorn your a champ, I am rather supprised to find that there are parts suppliers in my little old home town of Perth,now i am realy home sick.I remember a couple of them just diddnt remember have a large stock of electric heli's ither times have changed or i just wasn't looking for them in the past,any way thanks for the info I visit home every six months so next time I will stock up on parts.

About the head speed i cant seem to get it above 2300 without the tail starting to self distruct,wich sucks because at 2500 the motor would almost be coming into its sweet spot, the tail on this thing is a little crummy in the sence of under engineared by way of the tail output shaft diamiter and at the moment im stuck on a relitevly primitive island so i cant even get components of some thing else to re enginear it,well i lie i have started with a 4mm stainless motor bike spoke and ive made some nylon bushes but im reluctant to start modifying the gear box or pitch slider untill i can find some propper bearings wich i think is a pretty big ask in bali but time will tell.any way sorry to drible my sht to you thanks for your reply
best regards Wardy.

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03-09-2006 04:13 PM  11 years agoPost 4
smokin

Senior Heliman

Bellevue, NE - USA

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Wardy,

I assume you have ensured you have a straight tail rotor shaft and you've static balanced the tail hub/blades as an assembly. Have you tried dynamic balancing?

I had done the truing and static balancing, I still had a severe vibration in the tail. Finally, I stuck a small (10mm X 10mm) square of electrical tape to the end of one blade and ran the thing up again. The vibration was insane! I moved the piece of tape to the other blade and spun her up again--viola`! Vibes were dramatically reduced. I cut a little off of the tape and tried it again, no more vibration! It's worth a try...

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03-09-2006 04:41 PM  11 years agoPost 5
Wardy

Heliman

INDONESIA

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Cheers smokin i have tried most of what you have suggested and had some success but i am craving some hi speed durability. I have a sht load of spare shafts now so when she starts buzzing away again i just check and change some times i find evidence of the tail rotor yoke spinning on the shaft yet i cant physically make this happen i do sometimes see grove marks from the yoke bolts spun onto the shaft .
but i am wary of trying to tighten these ton tight in fear of bending the shaft in the process, this doesnt occur often now with the aid of lock tight.Any way it doesnt happen if i don't try to push the head speed above 2300 its just i feel sorry for my motor running this low don't get me wrong it lugs this low with ease and wont bog even at10+pitch it just gets hot not running in its sweat spot.

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03-09-2006 04:55 PM  11 years agoPost 6
smokin

Senior Heliman

Bellevue, NE - USA

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Wardy,

You're welcome! I have the 400DH in one of my birds too, so I know what you mean about it liking to run high RPMs.

I do 90% of my winter flying indoors. Compound that with the fact that I am still just doing hovering and a bit of FF, I have to run my Throttle curve at 0,35,50 in order to keep the thing even resembling docile! In contrast, my other bird has a Himax 2025 in it and I run a 0,70,85 Throttle curve indoors with it--and it's still running a lower headspeed than the 400DH!

The bottom line is that at the headspeeds I run indoors I don't seem to have much problem with vibes, but outside where you can really open her up that little 400DH needs a finely balanced machine or it will rip her apart!

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03-10-2006 03:19 AM  11 years agoPost 7
gorn

Elite Veteran

Western Australia

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Hi Wardy
No worries mate.Smokin is spot on about the ballancing.
I had a quick look to see if you could get a microheli tail case for the V2 here....nope. I actually have gotten 90% of my bits out of the US, mostly cos I was after bling or just things that werent on our market here. You may have trouble getting mail order sent to Indonesia though.
If you have any hassles with parts, then just drop me a line and I'll see what I can do.

For the love of the hobby

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03-10-2006 05:04 AM  11 years agoPost 8
Wardy

Heliman

INDONESIA

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Thanks gorn,
Thats awsome,do you know where i could get hold of a trex standard tail unit coplete?I have found the after market ones but i like the idea of the standard one for avsilability and cost of part. I currently get my zap parts from Singapore via DHL 2 day dellivery from SHS Singapore hobby suplies where a purchased this bird from when i was there.Would you believe the copleat package cost me just over $400 AUS with a high quality Futaba radio but there parts are where they are making there money and they dont stock bugger all after market stuff yet they claim to on there web site.Any way i figer the trex tail might be a more durable way to go what ya recon?

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03-10-2006 12:19 PM  11 years agoPost 9
gorn

Elite Veteran

Western Australia

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Perth RC stock the Rex stuff http://www.perthrc.com.au
Bargain price for your Rex and radio!
They are $360AU here with esc and motor, thats it lol
Add on 4 servo's, gyro, reciever, Transmitor etc...
They are selling the V2 shogun here RTF, dont know what radion, for $960AU
Ive seen a few posts on people doing the complete trail conversion, but honestly I didnt pay much attention to what the results were or how they did it.
Quick search in here will give you some idea's on what they did.
Good luck mate!

For the love of the hobby

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