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HelicopterGasser Model RC HelicoptersOther › OZ GASSER ??
03-18-2009 09:45 AM  8 years agoPost 41
gorn

rrElite Veteran

Western Australia

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The use of the RC engine is definately better, more power, better cooling.
The acrobat name is about all thats acrobatic about Vario.
They are far too heavy, and just plain old not designed for it.
They also do indeed fit in scale fuses as far as Im aware.
Can they do aerobatics, sure.....but most other gassers do that side of things way better.
4 servo CCPM adds weight and expense as well.
Just not needed UNLESS you are carting around a huge heavy scale fuse.
I love the look of the Mongoose heli, looks great.
But its been done.....twice lol.
I thought the idea was to simplify, make it versatile, light, cheaper etc etc.
Anyway, thats more than my 2 cents for the day

For the love of the hobby

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03-18-2009 10:22 AM  8 years agoPost 42
neale

rrApprentice

BRISBANE ,Australia

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gorn,how's it going?
by the term rc engine,do you mean the rc version of the ghenoa engine?
YES 4 SERVO CCPM is heavier,same with a belt drive first stage,but smoother.But I think direct drive is the way to go.Pull start is also in.Good swassh and variable head mixing.So which head?
I am thinking of basing it on trex 700 frames,Ialso want to have the option of spinning 810 blades,again back to head,what will cope?
Belt drive is to be prefered,l dont have a prob there,any thoughts?
I think l am narrowing down specs,thanks
Neal

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03-18-2009 11:14 AM  8 years agoPost 43
gorn

rrElite Veteran

Western Australia

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Im good Neale
Pulled the carb apart on my gasser to find out why tuning was a bit hit and miss suddenly.
Found some gunk in the filters, and little tiny piece of clear plastic stuck in there as well.
Re-fitted carb, 2 pulls and away she went again

Yes the RC version of the Zenoa engine.
It makes more power stock than the PUH, and the cooling system is better too.

The only head that is cost effective with variable mixing is the RJX Extreme 90 head.
You will need to run 3 bearing blocks for support, as it is a 10mm main shaft size.
I have owned an X90, and let me tell ya, that head is awesome.
I smacked it in very hard knife edge with the tail piro'ing out of control under power.....(I had hit throttle hold for a second, but accidentally turned it back off in the panic lol)
All I busted as far as head parts go, was the pitch arms. These are made to be sacrificial and do the job well.
You have adjustable bell and hiller mixing as well as delta offset ratio adjustment.
Another advantage to going this way is that RJX already make a drop in replacement flybarless head for 10mm shaft.

As for running 810mm blades.....hmmm Im not sure on that one.
Depends on the end weight of the complete heli really.
If the heli is kept light, I see no reason why it wouldnt handle basic aero's or more likely AP work.

Im all for belt drive too. Sure TT is better, but belt is lighter and FAR cheaper to service and replace in the event of a crash.

For me a gasser should be dead reliable with a minimum of fuss.
Other manufacturers have got the TT system worked out very well now, but that takes time and money to get right.

Anyway, Im all typed out now lol.
Seeya

For the love of the hobby

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03-19-2009 10:58 AM  8 years agoPost 44
neale

rrApprentice

BRISBANE ,Australia

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OK I have decided I am going to do a new 700 frame to do gasser,yes l know it has been done,however will be belt drive,so for now l will leave it at that,I will post finished results.

Neal

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03-19-2009 10:59 AM  8 years agoPost 45
gorn

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Western Australia

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one thing to keep in mind Neale.....make that sucker balance properly for CG

Cant wait to see what you come up with, keep us posted.

For the love of the hobby

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03-20-2009 07:14 AM  8 years agoPost 46
Trevor G

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Brisbane, Australia

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If you haven`t already Neale, take a look at http://www.gasser man.com.
They have all the conversion parts and some of them may be suitable to your project...like pinion gears and fan adapters for the zenoah.
His site shows cooling fins being hack sawed down though to fit the head under a modified nitro heli cooling shroud.
That may not be a cool thing to do...but some of the other bits might save you time and $$$

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03-20-2009 10:04 AM  8 years agoPost 47
neale

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BRISBANE ,Australia

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Thank you Trevor,l shall check it out

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03-20-2009 11:56 AM  8 years agoPost 48
gas_hopper

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...

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Hi neale
be informed before you deal with known scammers ,GH

http://www.runryder.com/helicopter/t433881p1

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03-20-2009 12:07 PM  8 years agoPost 49
neale

rrApprentice

BRISBANE ,Australia

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Gas hopper,thank you;
Yes,it rang a bell and l dld check it out.
l think l shall miss that one!!
But thanks
Neal

Also l am looking for aussie belt makers,need custom length belt for tail,have not got to cooling fan yet

Neale

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03-20-2009 12:12 PM  8 years agoPost 50
neale

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BRISBANE ,Australia

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Also trying to figure out front belt drive,preferably with original 700 boom mount,any ideas

Neal

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03-20-2009 12:21 PM  8 years agoPost 51
copperclad

rrElite Veteran

NY

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Also trying to figure out front belt drive
hi neale
you should PM Fixit for info on a longer belt , he has a stretch 600 he built with a longer belt and boom from another heli , maybe he will read this and jump in , cheers

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03-20-2009 12:24 PM  8 years agoPost 52
neale

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BRISBANE ,Australia

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Thanks copperclad I will do that,might be able to solv a couple of probs at once
thanks again

Neale

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03-20-2009 12:45 PM  8 years agoPost 53
Trevor G

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Brisbane, Australia

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http://www.minibearings.com.au/catalogue/

This a handy link from when I built my first heli. They sell belts, chains, pulleys, sprockets, you name it. General engineering supplies.
The site has changed somewhat over the years. They no longer carry anywhere near the amounts of stock they used to, but they`ll order it in if they don`t have it on the shelf. They have pinion stock that you could turn down to suit a clutch bell. also matching gear blanks.
Big project you`ve taken on! It took me 18 months of my spare time to build a 50 size from scratch.

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03-20-2009 12:58 PM  8 years agoPost 54
copperclad

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NY

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hi Trevor G
i wanted to look at the photos in your gallery , but they are not comming up , do you have any photos of your heli , thanks

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03-20-2009 05:29 PM  8 years agoPost 55
Bruino

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Auckland, New​Zealand

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Hi Neale

I've built the 700 gasser from gman. Not too bad a kit and not bad to deal with also. The heli flys pretty well also.
Cheers

Trex 700g / Align 620's cyclic / 770 & 8900 Tail / Zen 231 puh / 710 SWE Main /

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03-21-2009 10:32 AM  8 years agoPost 56
Trevor G

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Brisbane, Australia

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I don`t think I have posted any pics in my gallery copper. I can do that...which heli were you referring to?
The one I scratch built, I finished about 6 years ago and have long since stopped flying it. The pictures were posted in our Aussie Gallery years ago. They weren`t in my personal gallery but I`ll look if they are still there. My main bird is a Spectra G.

As for gasser man, I`m sure there are quite a few people who have his stuff without problems. Cheap way to get a pinion gear and flywheel to save you making them yourself.

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03-21-2009 11:16 AM  8 years agoPost 57
neale

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BRISBANE ,Australia

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Trevor,hows it going
why would you go for gasser mans pinion and gear?

Neale

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03-21-2009 01:18 PM  8 years agoPost 58
Trevor G

rrApprentice

Brisbane, Australia

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I only made those suggestions because you were looking at scratch building a gasser and I thought they may be helpful as you need the correct gear ratio for the engine.
I wouldn`t by a gasser man pinion because I have no use for one. I`d buy a Spectra G and just go fly. (I know nothing of the other brands) , but I do know the MA gasser, while not a beginners bolt together and fly model, is superb quality and does what it is advertised as being capable of - reliably.
I assemble aircraft for a living and `Miniature Aircraft` is a very accurate description of their product.
If you haven`t seen a gasser at all, you should really visit the gold coast field and ask Peter for a demonstration, he is a very competent pilot (understatement). Alternatively you could PM me and we could fire mine up down at the local field here.

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03-21-2009 01:25 PM  8 years agoPost 59
copperclad

rrElite Veteran

NY

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Hi There from Australia Heli fans! Here`s a couple of pictures of my home made carbon heli. It used century hubs, JR venture clutch, CCPM Swash, maingear and tail belt drive, and a bunch of fruity accesories from my local. The carbon work is all mine. The only plastic on it would be the hirobo tail blades and the crosstubes for the skids. I powered it with an OS46 and it turns SAB 600mm Carbonfibre blades. Hopes ya like it!
Hi Trevor
read this in your gallery , i was hoping to see photos of your scratch built machine , i understand if it was six years ago , it might not be possible , kindest regards

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03-21-2009 02:06 PM  8 years agoPost 60
Trevor G

rrApprentice

Brisbane, Australia

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WOW, was there a date on that????????
I don`t remember that (so long ago) but if I wrote it I would have posted the pics in RR as well as on ARC in Australia. I don`t have the photos anymore. I`ve had another whole computer since then and never kept the pics off the old one. Both websites have gotten rid of the them obviously because I checked. The frame is in the cupboard behind me partially stripped of parts and hasn`t flown for about 4 years! I don`t have the home made carbonfibre canopy anymore as I threw it out.

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