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HomeTurbineAircraftHelicopterTurbine Helicopters › new heli turbine
08-19-2018 02:49 AM  3 months agoPost 61
KevinChiu123

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Taipei, Taiwan

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I totally agree with you all.

I can not agree with you MORE~~~~~~~~~~

Gee, I am also a turbine beginner.

Thanks a lot of all experienced pilots' contribution.

I really learn a lot from you.

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08-19-2018 02:55 AM  3 months agoPost 62
KevinChiu123

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Taipei, Taiwan

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Hi, Matt:

I think "electric motors"~ cost/price is the only concern.

TURBINE~ threshold is too high>> financial, effort, engine maintenance, ........etc. The requirement is nothing but sweat, blood, and tears.

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08-19-2018 03:31 PM  3 months agoPost 63
helihenry

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uk

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MattJen
It seems now though Turbines are dying of death in helicopter configuration, the forums are really quiet it just doesn't have the buzz it had back in the prime day ( 2000 - 2010) my opinion, since electric motors are more powerful and much cheaper and quieter, turbines in helicopter configuration are numbered.
I cannot agree with you there Matt.
Last weekend at the Midland Helicopter Club event there were plenty of scale turbine models. I did a quick calculation of the number of turbine models that the turbine folk owned that were present and it came to over 15 that I know of.
It is always going to be a niche part of the hobby mainly due to the cost but from what I see it is going just as strong as it always was.

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08-19-2018 03:52 PM  3 months agoPost 64
MattJen

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UK

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fair enough Simon,
as said my opinion only.. as I don't see anything happening in my neck of woods, all the scale I see are electric, and the only turbines mentioned on the forums these last few years are pod and boom, compared to 20003 2010 they were loads, most of the big flyin events all the scale is electric.. with only a couple of turbines.. if Midland is still going strong awesome.. when I flew at midland a few years back there was only 3 of us with turbines the rest were Electric or Nitro or gasser.

But my personal opinion turbines in scale heli configuration have had their day with electrics more powerful and less maintenance..
Also I find a lot of the turbine flyers who were there at the beginning still have a large collection but dont fly them as much if not at all or post anymore. my good friend Bell Bloke who championed Wren at the beginning his machine is now a museum piece, he will never sell it but keep it for posterity. I know a couple of theirs who had the same machine as myself they dont fly anymore but wont sell up as they keep it for posterity.

All The Best

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08-19-2018 04:16 PM  3 months agoPost 65
helihenry

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uk

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You obviously don't come to the right scale flying events then Matt.
There have been at least 6 new scale helis with Wren 44 turbines on the scene in the last couple of years along with the existing Jakas and a few new Jetcats. Turbines are never going to overtake electric but there are a few of us hardcore turbine enthusiasts and I cannot see us going over to electric any time soon, but you are certainly entitled to your opinion.
Simon

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08-19-2018 04:20 PM  3 months agoPost 66
MattJen

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UK

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You obviously don't come to the right scale flying events then Matt

Yep cant disagree with that, since the loss of my long-ranger I haven't been to any UK event since 2014. I only have my Zealous with WrenMw54 so it is not a scale.Along with a Spare Wren gas Generator and a Jetcat PHT3 in my Hotcat Configuration.
Hopefully some of those 14 turbine owners will visit the Eynsford Scale Fly in..as in the South East Kent Area there is hardly any scale turbine owners, When I belonged to Eynsford Helicopter club up to 2016, there was just two of us regular Turbine Scale Flyers and Fred who made up a third when he flew which was occasionally..
EDIT ADDED
With the demise of Model Helicopter World Magazine there is no news anymore of what is happening in the RC Helicopter world within the UK, I used to enjoy the Scale event write ups where you could see the regulars flying their scale machines, some of which I wrote myself, you used to get a good idea of what was new and any scale builds on the circuit, if you live in an area where not much happens, in the RC World, the BMFA magazine is as much use as a cat flap in an elephant house, I haven't even seen RotorWorld on the shelves..so unsure if that is still about. So you go by what is on the forums. I only knew of an event in Cambridge and of course near where I Live the Eynsford fly in.. so good to see others, and thanks for the info on Midland.

All The Best

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08-26-2018 12:10 PM  84 days agoPost 67
PETER ROB

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Devon UK

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Turbines
Although I do not post a lot now, I still have a large collection of turbine, I had a friend from Ireland visit, the photo is of just a small selection, that I showed him, there is a video of the Oddysey running,on my face book page
I see that Scale helis is now at the top of the page, Mark has had a shake up
Peter R

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08-26-2018 12:42 PM  84 days agoPost 68
keron

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Miami

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nice photo's peter. i myself have scale heli. including a turbine nh90

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09-25-2018 02:35 PM  54 days agoPost 69
THX1138

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Indianapolis, IN

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I have a Hirobo Freya EX that is begging for a turbine... This KT-45 would be an excellent solution, as well as the Wren 50 Two-Stage...

Lou

Just give me five dudes and two flashbangs...

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09-25-2018 04:04 PM  54 days agoPost 70
PETER ROB

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Devon UK

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What about mechanics? the Wren is stand alone
Peter R

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09-25-2018 04:50 PM  54 days agoPost 71
THX1138

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Indianapolis, IN

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The Freya frame is a perfect donor for the conversion and I think it would take minimal custom parts to get it done. My big question would be how the second stage gearbox would mate to the frame. The Wren is a no brainer as it mounts exactly as an OS91. A front brace for the engine itself is pretty much all you would need there, then cut the frame appropriately for the exhaust and such. Adding fuel cells could be tricky to get flights up around the 5-6 min mark. It would be a sport heli at best.

Lou

Just give me five dudes and two flashbangs...

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09-29-2018 06:33 PM  50 days agoPost 72
MattJen

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UK

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The predator wren conversion was very successful but did not mount directly using the 90 size engine mounts it needed a donor and then had a conversion set of frames as did most of the turbines back then due to their size especially the single stage.
There are a few wren44 on a 90 size machine, I've seen the Synergy, Raptor 90, Trex 700, even an Xcell Fury using the MW44, even the powercat which was originally designed for the Jetcat PHT3, I am sure there are more,
I am interested in this Wren50, funny how they've gone back to a 50 after the demise of the MW54...

All The Best

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09-29-2018 06:56 PM  50 days agoPost 73
MattJen

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UK

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Obviously there is a caveat the above, that you are taking a machine designed for a 90 size engine and power and adding a large power plant, which takes it out of the design it was originally for..

But with all these electric conversions I see which are much more powerful than turbines the machines seem to hold up to the abuse..

All The Best

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09-29-2018 08:19 PM  50 days agoPost 74
THX1138

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Indianapolis, IN

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I’m not concerned about the increase in power, people fly turbine because of the awesome cool factor! If I actually attempt a conversion, I’ll extend the boom and belt to swing 770-800mm main blades and it will be a nice sport flyer. The weight of the engine and support equipment would load that disc nicely and possibly give way to being able to carry more fuel...

Lou

Just give me five dudes and two flashbangs...

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09-29-2018 09:48 PM  50 days agoPost 75
MattJen

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UK

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Cool go for it, my only concern with the freya would be as I had with the Cuatro, THE BELT, on the early Wren Cuatro conversions when we stretched boom and belt to use larger blades the turbine did tear the drive belt. So I have always opted for direct drive and pinion, but belt technology probably has moved on considerably.

All The Best

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09-29-2018 10:15 PM  50 days agoPost 76
THX1138

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Indianapolis, IN

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Noted. I can’t remember if hirobo makes a TT or not...

Lou

Just give me five dudes and two flashbangs...

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09-29-2018 10:28 PM  50 days agoPost 77
keron

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Miami

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guys sorry to cross post. i have a keroplug here and its giving me hell to ignite. when i do a test its working. now and then it ignites. i carry the pump volts to 50 then up to .275 and it floods the engine.

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09-29-2018 11:10 PM  50 days agoPost 78
MattJen

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UK

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Keron
You'd be better off starting a new thread..

All The Best

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09-29-2018 11:11 PM  50 days agoPost 79
keron

rrNovice

Miami

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jetcat pht3 heli

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09-30-2018 12:26 AM  49 days agoPost 80
payne1967

rrElite Veteran

uk

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the freya can be converted to torque tube tail drive
I would make sure that you are sitting down when you look at the cost of the conversion
however the Hirobo belts are very reliable

www.alcesterhelicopterclub.bmfa.org

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