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HelicopterTurbine Helicopters › Thinking about getting a turbine...
11-26-2007 09:16 AM  9 years agoPost 1
Climax

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West London, United Kingdom

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Hi all,

I've decided that I'd like to get a turbine, it's funny ‘cos as until recently I was happy flying and owning glow machines but all of a sudden I've developed a turbine craving... Is this normal?

I appreciate that turbines on the whole are more powerful than the larger glow engines and as such they tend to end up in bigger models swinging large blades etc. But, are there and "90 sized" turbine powered models? Ideally pod and boom style models that have been specifically designed for turbines and not conversions such as the Century Predator?

I’d also like to compile a list of links, to be added to http://www.collectivepitch.com/ to help out others like me that are just starting out with respect to turbine powered helis. At the moment I’m just trying to read as much as possible before diving in head first!

Many thanks!

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11-26-2007 10:22 AM  9 years agoPost 2
mcfast

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Quebec Quebec Canada

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Hi Climax

The new Wren MW44 is for 90 size hellis !

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11-26-2007 10:32 AM  9 years agoPost 3
Climax

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West London, United Kingdom

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Thanks, but for what machines?

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11-26-2007 11:47 AM  9 years agoPost 4
HFr

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Lagrange ,in USA

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The Bergen turbine is specifically designed for the MW 54III motor .
http://bergenrc.com

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11-26-2007 12:48 PM  9 years agoPost 5
jwb1450

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Manchester, UK

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Hi,

The conversion route works well - although there are specialist machines designed from the ground up for turbines; e.g. the Len Mount Odyssey which uses the Jakowski turbine

The David Owens conversion to fit a Wren MW54 into a robbe Cuatro is a nicely engineered conversion. I've just started test flying mine after building a new Cuatro and incorporating the conversion kit and Wren turbine at the same time.

The support available from David (http://www.removebeforeflight.org) and Wren Turbines (http://www.wrenturbines.co.uk) is very good.

David can update you on the progress with the Wren MW 44 in the robbe Millenium and Synergy machines too.

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11-26-2007 01:25 PM  9 years agoPost 6
TTCuatro

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Haugesund Norway

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I have converted one of my cuatro´s with David Owens kit. this is working good.

I also have a kit from turbine tecnics, but I have had many problems with them, I also have problems reciving spearparts from them.

Go with the convertionkit from David Owens, grait service and good quality

Check this link.
http://www.runryder.com/helicopter/t307180p1/

Have still just got the frame, and have not recived my money back for the turbine, I bought form turbine tecnics in 2004.

Birger Hovland

Birger Hovland

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11-26-2007 01:32 PM  9 years agoPost 7
Climax

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West London, United Kingdom

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Thanks for the info, I have a few e-mails to send...

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11-26-2007 01:52 PM  9 years agoPost 8
MattJen

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UK

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the only turbines which have dedicated mechanics is the Jetcat Powercat and the Oddyseey which uses the Jako turbine all the others are normal pod and boom nitro/gasser machines which have been modified to take a turbine.
The 2 mentioned above are sets of mechaincs which have been built and designed around the turbine they are intended to be for.

The new one for the 2 stage jetcat is the Zelous which is RHR, again it has been built and designed around the intended turbine and is not made up of one kit and other conversion parts.
The benefit of these one stop machines is you havent got the problem of having to go to 2 seperate manufactrers for mechanics parts, as they all come from one place..

The bergen was also designed around the wren,

I would deffinatly worry about having a synergy with a turbine, when you see the horrendous probs people are having in its Nitro form.

just my opinion, go have a look try a few of the different machines
of all turbine makes, there a few wren's in the predators, and i only know of 1 quatro ( richieUK) i have a couple of jetcats you can try, i am sure there are others here that would be willing to let you see/fly there's and you will then find one you like,

with the long service levels for jetcat at the moment, i would look at the others, wren is a very quick turnaround,

Matt

All The Best

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11-26-2007 02:42 PM  9 years agoPost 9
jonesjj

rrApprentice

Northern IL

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I am in the same place also, there are a few choices to make here with regard to What to Buy.

I am wanting to end up with a scale ship with a multi blade head down the road but want to do the pod and boom to get going with the learning curve.

What I have figired out was if you want to do scale is to figire out what scale ship you want and then figire out what turbine/mech will fit in it, or be best adapted to it.

If you have no intention of doing scale and just pod and boom you can go pretty much anyway you want. For me the 2 MOST important factors are Customer Service and Parts Availability, cost isnt that much of an issue here as it is ALL more expensive than it should be, so if your going to Play you are going to PAY.

I would like to end up with an EC 145 with a 4-blade head down the road, our local hospital has a 1986 BK 117-A they fly.

From what I am finding out the Vario PowerCat is the Easyest way to get there, with the Vario fuse and 4-blade head.

That being said is there any opinions on the PowerCat from experianced people with this ship? it being single stage will it handle a 4-blade head and the weight of the added fuse sufficiantly?

Jeff

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11-26-2007 02:54 PM  9 years agoPost 10
MattJen

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UK

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jeff

yes the PHT3 single stage tuebine will easily handle the 4 bladed head, and as it is governed you wont have to worry about precision of a pitch and throttle curve,as the head speed is critical for a multi bladed head,

I had an ec135 which had a 4 bladed head, there are a few on here, Paul999 bought my hotcat ( predecssor to the powercat) and he is learning to fly it as a turbine pod and boom before he puts the same turbine into the vario EC145 which he has bought.

All The Best

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11-26-2007 03:14 PM  9 years agoPost 11
Climax

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West London, United Kingdom

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I'm looking for a pod and boom machine that I can use for mild 3D. To me the two most important aspects of any machine are:

1. A reliable turbine that keeps running, i.e. minimal/no flameouts.

2. A design that protects the turbine if/when the helicopter crashes (the Zyclone and some of the rear facing turbine designs look good in this respect)

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11-26-2007 04:06 PM  9 years agoPost 12
dazzaster

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right next door to hell

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climax. on no2 it does depend on which way you crash.
unlike a fixed wing the heli isnt always traveling in forward flight.

A.K.A 509

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11-26-2007 04:24 PM  9 years agoPost 13
MattJen

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UK

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Hi Max
Glad to hear you are thinking of joining the turbine gang,

So how is acrobatics coming on, i notice the Avro is being explored for its 3D capabilities

we will have to convince Dave that he needs a school model

Matt

All The Best

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11-26-2007 04:24 PM  9 years agoPost 14
Sara

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Yorkshire, England

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. A design that protects the turbine if/when the helicopter crashes
We have very rarely seen crash damage on turbine helicopter engines - they are quite strong and seem to be fairly resistant to impact. The exhaust outlet is the most vulnerable section and we have sometimes had to hammer one back into shape (or even replace the exhaust) but no-one has done much damage to the rest of the engine.

Sara Parish
Wren Turbines

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11-26-2007 04:26 PM  9 years agoPost 15
Climax

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West London, United Kingdom

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Like most of us I've had my fair share of crashes and often the front of my helis have taken a pounding, but I take your point.

I still like the Zyclone main mechanics design as the turnbine appears to be quite well protected. I guess I'm looking for a defensive design, or at least one that I feel is defensive such that I don't spend too much time worrying about it... i.e. minimising the psychological effects on flying 3D on an expensive turbine!

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11-26-2007 04:35 PM  9 years agoPost 16
Climax

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West London, United Kingdom

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Hi Matt,

Loving the Avro! I'm considering a conversion... I've not spoken to anyone about this yet but I've been giving it a lot of thought...

Hi Sara,

How many people 3D turbines? It's only since my flying has become good enough for 3D that my crashes have become expensive! I appreciate that there is not much you can do about this other than try and protect the turbine as much as possible... I suspect that my crashes are about to get an order of magnitude more expensive! Hopefuly there will not be too many of them...

When will the 2-stage MW44 be available? (forgive me if this information is already available as I'm currently drowing in information!)

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11-26-2007 05:21 PM  9 years agoPost 17
Sara

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Yorkshire, England

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3D turbines? Quite a number of them. Bob Johnson does some of the most extreme flying with a Wren turbine and his engine has been back twice for crash repairs - each time it was the airframe that gave up rather than the engine. Nevertheless, he didn't manage to do too much damage to the engine, even when it dropped sideways out of the sky.

The 44 helicopter should be out some time in the New Year - some of the parts are in stock already, but we need all of them before we can start selling.

Sara Parish
Wren Turbines

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11-30-2007 10:42 AM  9 years agoPost 18
Bell Bloke

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UK

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My Wren has been in the dirt 4 times now, engine always fires up and runs fine after a bit of a clean up with a toothbrush.
1st crash was radio problem.
2nd crash was striped main gear due to overloading.
3rd crash was brain fade after being destracted by someone as I was landing(I looked at them and not the heli).
4th crash was failed flight reciever pack locking out the whole system.

So yes I can safely say that so far I've given my engine a good crash testing, I'm somewhat embarrased to admit.

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01-01-2008 03:30 PM  9 years agoPost 19
THX1138

rrElite Veteran

Camp Bondsteel, Kosovo

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I am really excited about the 44. I think it will open up the door for a whole new level of flying and I hope I can get in on the ground level.

Lou

Just give me five dudes and two flashbangs...

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01-02-2008 09:01 PM  9 years agoPost 20
Richard

rrVeteran

Scottish Borders, U.K.

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Try this link to my flying club and click on activity. I was asked to write an article on building my Powercat for the web site.

http://www.scottishbordersmfc.co.uk/

Richard

Oh **** ! this is going to be expensive?

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