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HelicopterTurbine Helicopters › Predator Wren Flying.
03-21-2009 12:54 AM  8 years agoPost 1
MattJen

rrElite Veteran

UK

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Well it has been almost 4 months now since building this machine..
Over the last 2 weeks i have done over 15 flights, and i am now having to turn up the power and speed up the settings, as i set them originally with Bells help, very soft and slow.. that is the beauty of this machine when compared to others i have flown, is you can grow with this machine and each time you progress you can ajust the machine to keep up with you... as you are not limited with manufacturer settings that limit the capabilities..
The predator and Wren i have found really complement each other, a beautifully crafted engine matched by a competent machine that is so flexible you will never out grow it.
I am finding that each day i wake up and the sky is clear i actually look forward to flying it, with the 2 battery packs 4300 each i can fly for 10 flights before a charge, so i have really been able to concentrate on honing my skills, like today despite the breeze the machine flew effortless around the sky, i got incredibly daring, doing knife edge turns i found it realxing that the machine responded to my every stick movement, i had a couple of scary moments where i got carried away and forgot about the power i had at my finger tips and suddenly reality kicked in that i was flying a turbine and not a cheap tiny micro helicopter... i was having to calm myself down, as i had been flying so fast getting into the groove with this machine, that i let it get too high and too far away, i was flying it around as if it was my trex 450, just forgetting about how much money is flying around..
It just tracked as if it was on rails, I have never felt this way about a turbine, i have always been edgy and hesitant with the mechanics, but i really feel relaxed with this machine, i just cannot get over the power and stability this machine has, and it can be set to whatever your style of flying is, whether you want a slow scale like setup or a ballistic 3D setup or as i call it a general F3C style setup, where you have the power if you want it, but the machine is manageable, it can be achieved, and as i said earlier as you progress and gain more confidence you don’t have to upgrade you simply turn up the power and you turn the machine from a puppy into a cheetah.
I haven’t felt like this about any machine since i sold my Fury xtreme 90, i was so happy with that but was talked into upgrading and ever since then i have tried to find a machine that was like that..
The predator turbine experience is similar, i have always wanted to fly a turbine but just haven’t found the machine right for me the others i flew i just did not have the confidence in mechanics or feel at one with them, with the predator Wren i feel that connection...
I had an old timer come up to me today whilst i was flying at my club field, he has been around for many years and is one of our club examiners, never really talked much, but he sneaked up as i was whizzing around, and he watched with a big smile on his face and said when i autoed it in “ you really enjoyed flying that didn’t you” he said what power there is there and he could not believe how quite it was, they thought it was an electric machine until the waft of Kero reached the pit area... a really nice guy, he just said how he was impressed to see me flying a turbine around, fast and not just hovering on the hover patch, as i have done previously, i cannot say enough about this machine, i was hesitant at first with some of the comments i had received, but having knuckled down and made myself fly the machine that effort has really paid off, flying a turbine is now real fun and an enjoyable experience, the smell, the sound of that first pop, as the engine pulses into life really makes flying a turbine helicopter an exciting adventure... i see it flying around with its nice canopy and i think to myself i built that, and it does really give you sense of accomplishment...
I love every minute of it and i would recommend this machine to anyone who wants to fly a turbine, as it can be tuned to your capabilities.. and progress with you as progress...

All The Best

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03-23-2009 10:32 PM  8 years agoPost 2
DRUMMER

rrApprentice

Dover, UK

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A very graphic and passionate description Matt. The only time I have ever written anything quite like that was after i met this nurse and she took me home for the night.... Anyways, not quite a night with a nurse but still a good read, thanks!

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03-24-2009 01:27 AM  8 years agoPost 3
Bell Bloke

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UK

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L.M.A.O.& just wet my pants!!! Nurse!! Oh nurse!!

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03-24-2009 11:37 AM  8 years agoPost 4
MattJen

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UK

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My wife has just comine into my office and asked what on earth i am laughing at so loud.at..

That has got to be one of the best simmilies i have ever read....

Truly funny... thanks Drummer....

I have knuckeld down, just learnt to fly this machine and put in some seriosue time, I cannot take all the credit for doing it as i Have Had Bell helping me all the way, explaining when i ask, and as some may say well thats not earnt knowledge i disagree, cos if we all felt like that then there would be no need for forums... such as this..to pass on experiences and hints and tips..

I have learnt a tonne of stuff since flying with Bell, and cos he has the engineering understanding of a turbine it has accelrated my learning curve.. as he can explain in detail why and how things happen on a turbine, i then go away and read up and then try it myself to apply it..

It has been a two way street, as i have been able to show him about Jetcat and how the programming works... so it has been an exchange...

I am even going to learn how to balance a turbine wheel when i next see him... to dispell the myth you need thousands of pounds worth of equipment to do it..

All The Best

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03-28-2009 01:08 PM  8 years agoPost 5
DRUMMER

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Dover, UK

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Hi Matt & Bell,

Glad my reply raised a smile. As you could guess from my posts I am just a turbine wannabee who pops in here to see how you big boys are doing. [who is rubbishing who, what turbine is the very best,how to reset the egu/ecu/ovenready chicken sensor temp etc etc]

I am envious, I feel like I did as a kid in the high street, nose pressed against the window of Lawtons toy shop, watching the trains go around. I promised myself there & then that one day I would have one of them train sets, so I worked hard, saved my pennies and when I had enough I went out and bought a helicopter..thats when the trouble began!
Anyways, starting saving again and I WILL have a turbine one day, but i guess by then you guys will have moved onto time machines
[Wren have one on the drawing board I hear but the Jetcat one will be better and move you backwards AND forwards in time]

Keep the descriptions coming,especially with pics/videos but be sure to include the turbine sound and blade spool up..is that wrong of me to like thoses thing?

cheers
drummer

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03-28-2009 01:21 PM  8 years agoPost 6
ppridday

rrKey Veteran

Detroit Lakes MN

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Keep the descriptions coming,especially with pics/videos but be sure to include the turbine sound and blade spool up..is that wrong of me to like thoses thing?
It's what wet dreams are made of...

Paul

"There's someone in my head, but it's not me..."

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03-28-2009 01:56 PM  8 years agoPost 7
MattJen

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UK

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Drummer

I notice you are in Dover, if you ever want to have a go on my machine you are always welcome to hover it....

I spent the last couple of days on the predator,flying and tweaking still the setup on the head...

Matt

All The Best

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03-28-2009 06:34 PM  8 years agoPost 8
DRUMMER

rrApprentice

Dover, UK

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Thanks Matt, a very kind offer. We did exchange a few emails last year when I invited you down to fly with us. Unlikely I will make it up soon though as I have just taken over a pub and as a business needs a lot of time, but I do appreciate the offer.

cheers
drummer

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03-28-2009 07:18 PM  8 years agoPost 9
MattJen

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UK

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Apologies Drummer,

I did not remember you, I am down Dover way a lot now, and i will be changing my job in 2 weeks time covering all the south kent area, so maybe when the weather breaks a little it owuld be nice to come down your way.. I have a case of Vodka i can give you as you have apub, i had some samples, i will never use them... you may as well have them..

Keep in touch

Matt

All The Best

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04-02-2009 11:33 AM  8 years agoPost 10
DRUMMER

rrApprentice

Dover, UK

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hi Matt,
sorry been a busy week so not checked in here for a while.
I am over in the seaside town of Deal about 5 miles from Dover. So if you are down this way during the summer let me know. Be good to see your heli to!
regards
drummer

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04-02-2009 03:33 PM  8 years agoPost 11
MattJen

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UK

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I know Deal very well,

I had family in Herne Bay, before they moved to Wales..

I will pm you my new number as i am changing jobs and start my new one on 14th April...

Matt

All The Best

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04-07-2009 10:46 PM  8 years agoPost 12
MattJen

rrElite Veteran

UK

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Spent a couple of days down at bells,
Came home with a head ache, i learnt to balance a turbine wheel to within a human hair weight of accuracy.. put to sleep the idea you need thousands ofpounds worth of equipment to do it..it amazed me how accurate you can balance a turbine wheel on a relativley simple piece of equipment..

Also discussed some aspects of thermodynamics,and picked up some real nice tips how to turn a machine from being great into awsome and a competition winner.. i applied the theory and have to say as skeptical as i was at first, once i bought it up into the hover and moved into FFF i could really see and noticably feel the difference...

Thanks To Bell, Am spending the next few weeks flying around and really enjoying it, even club members enjoy seeing it fly, even plank flyers.. it has generated some nice chats over a cuppa and shared experiences of how they used to fly gas turbines..

It has been nothing but positive, very easy to setup, all i am doing is just tweaking what is already a good setup..i am chaging the setup as my flying style changes and evolves...

I am moving over to 2.4 and sticking with the Futaba 10C as it fits my style of flying... so i will be looking forward to mastering another radio and its intricate programming..

Matt

All The Best

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04-25-2009 07:43 PM  8 years agoPost 13
MattJen

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UK

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well i made the change over to 2.4 as my 10C arrived last week,but with starting a new job on Monday and having 2 jetcat PHT3's on my work bench that have been sent to me after a crash and i have been away all week today i made the effort to make the change over.
well the weather this morning was blowing a 20mph wind not nice for setting up..

I asked Bell bloke to cast his expert eye over it to ensure all was well and in doing a long range check to ensure we had the arials in the best position.
Well i did a rough setup and then fired her up after doing the re learning of radio..
I needed to up the mid point to get the required head speed, within half a tank the throttle curve was done, i had set the pitch to maximum in idle up to -12 0 +12 i went intdo normal flight mode and after finding out how to access the other 2 points on the 5 point curve i set 5degrees at mid stick and then smoothed out the curve..

The end result all within ONE tank was a very smooth curve, despite the wind really kicking up i once again found it a plesure to fly..

All The Best

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04-25-2009 10:44 PM  8 years agoPost 14
KIM JOHNS

rrNovice

CORNWALL

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HI MAT

WHAT VOLTAGE ARE YOU USEING FOR THE RECIEVER,

CHEERS KIM

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04-25-2009 10:48 PM  8 years agoPost 15
MattJen

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UK

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i am using standard NIMH 4300 4.8 volt, as my servos are analogue 9206

Matt

All The Best

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04-25-2009 11:27 PM  8 years agoPost 16
KIM JOHNS

rrNovice

CORNWALL

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HI MAT

if i were you mat, i would change the 4.8v 4300 mah to a 6v 4300 mha,

its good insurance, that 2.4 is not keen on low voltage,

my raptor 90 turbine is on 35MHZ i have always run that on 6v.

i am going to change to 2.4 specktrum i will still keep to 6v.

with good servos and a good gyro, i dont think you need to wag

the sticks to long before the voltage gets under 4.8v

then your in to fail safe

cheers kim

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04-26-2009 02:11 AM  8 years agoPost 17
DKTek

rrVeteran

Melbourne, FL-USA

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The predator looks real nice Matt. I just checked your gallery. I built a Rex700 and will put the little Wren in it when it's available. The 700 has a 12mm main shaft as well. After flying the XLV, I too am having a ball with this machine. I'm not a 3D guy but I love stirring the stix with this. I am anxious to put the Wren in it and your writing has me grinning as well.

The beatings will continue until morale improves...

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04-26-2009 02:26 AM  8 years agoPost 18
predatorman

rrVeteran

Falkland Islands

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Kim Johns...does the Raptor have a Wren fitted? what size is it?

I am after a Predator airframe but am open to ideas as to other airframes if the conversion is not too hard to do.

Been looking at a Trex 700 thats being put together...what a qaulity bit of kit!

I have just bought a Wren MW54

Nice story there Matt, one of the comments summed it up...passion!

Quality takes........time!

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04-26-2009 10:54 AM  8 years agoPost 19
KIM JOHNS

rrNovice

CORNWALL

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HI predatorman

yes i put a wren mw54 and second stage in the raptor 90 and a

hobbyparts universal gearbox, you could use the wren gearbox

both gearboxs are good. there are photos of the raptor 90 turbine

in my gallery. predatorman pm me if you want more info,

like bellbloke said any conversion is posible,

if you dont want to do full 3d why not put a wren mw54 in

a Trex 700 dont think any ones done that yet,

cheers kim

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04-26-2009 01:42 PM  8 years agoPost 20
MattJen

rrElite Veteran

UK

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Hi Dk

The XLV is a lovely machine, i just did not like the way mine was setup with poor tail authority, but knowing what i know now i would know easily how to over come this..

Once the zealous is up and running - working on paint reaction to canopy i may look at another XLV using the Wren, as Chopperjockey flies a wren conversion and it is lovely... and seeing yours and another guy in the UK has modified it to fit in his car really does make you want to get another one.. thanks for the comments on the predator.

Kim Johns

Thanks for posting, as 2.4 is new to me the voltage comment you made i hadn’t even considered so thanks, i do have a question for you, I am running 2 Nimh 4300 packs 4.8, as i have been taught to use a double pack system as a back up with 2 individual switches, after 6 flights i only use 720mps out of each so i am well within the packs limits, would you still recommend i change over to lypo ? reason being i am not a fan of regulators when used in conjunction with an ECU/Fadec.. But i admit things have moved on and a lot are now using this system as a means of power..

Predman
Glad you have taken the step, it is a great setup and take a lot being thrown at it when you see the likes of coolice and bell bloke and others thrashing theirs around as if it is a trex 450..

Look forward to reading your build threads.

You are correct in it takes time to get a machine running at its peak, i have had mine now for nearly 6 months, i would also add flying with the right kind of people also helps a great deal, those who know how to setup a machine properly and know how and why things happen on a turbine, and want you to learn and do well.. something which has been great with Bell and skeeter pilot and a couple of
others..it is nice leaving bells home with a smile on a my face feeling i have learnt and achieved something rather than like before feeling i had been emotionally batterd and taken advantage of..

All The Best

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