RunRyder RC
WATCH
 1 page 1606 views POST REPLY
HomeScaleAircraftScale HeliScale Helicopter Main Discussion › Vario EC135 Turbine
10-29-2011 12:51 PM  6 years agoPost 1
JOJO HELIS

rrNovice

malta (Europe)

My Posts: All  Forum  Topic

Hi All,
Been thinking on my next project to be, and I am becoming quite inclined to get the Vario EC135, fenstron and PHT3 turbine. Been reading about this model, but not sure whether it is a stable model in terms of tail authority is concerned or not. I wouldn't like to end up spending hours upon hours in making the model decently flyable.

Would love to hear any one of you with a'hands on' experience...

Thanks in advance

Jojo

Jojo Helis

PM  EMAIL  GALLERY  Attn:RR  Quote
10-29-2011 04:08 PM  6 years agoPost 2
Héli Suisse

rrApprentice

Geneva Switzerland

My Posts: All  Forum  Topic

it is a stable model in terms of tail authority
Hi Jojo,
This is an interesting question. i have both models EC 135 JetCat and electric. For the PHT3 it is true that under some conditions the tail authority might be weak. An important point to consider is to build a light model. The heavier the heli the more pitch required, thus an increase in drag, conversely torque to counteract. I would also recommend using the new 10 blades Vario fenestron 93/90 http://www.vario-helicopter.biz/de/...ducts_id=100054 (former Cine-Scale) which is much more effective in maintaining a good tail authority.

Else when properly build and set the EC 135 Jet is very cool to fly and demonstrates a great stability and agility. I just went back from 2 flights with my model.

PM  EMAIL  GALLERY  Attn:RR  Quote
10-29-2011 04:53 PM  6 years agoPost 3
JOJO HELIS

rrNovice

malta (Europe)

My Posts: All  Forum  Topic

Hi !

and thanks for your reply.

I see your point when it comes to weight. To be honest it is a concern for me, since I am still a 'NO GO' when it comes to LIPOS! so I have to see about that one too.

I am also realizing whether it is a complete MUST to install some sort of stabilizer like Heli Command.
what is your opinion on this? in that, will it be a struggle to fly the model without any electronic stabilizer??

Just trying to see if I can keep the model rather simple, hence less things that can go wrong....

Thanks once again
Jojo

Jojo Helis

PM  EMAIL  GALLERY  Attn:RR  Quote
10-29-2011 06:56 PM  6 years agoPost 4
darrens

rrKey Veteran

United Kingdom

My Posts: All  Forum  Topic

I have had a lot of experience with this heli on a four blade Vario head.
My experience is that the heli is too small for turbine weight i.e. the overall weight is to high for this size of disc, the blades are too light and the head is very rigid.......overall this makes it less than stable!

key things to do;

1. Keep wieght to a bare minimum
2. Fly it on 2 blades, they seem just fine on a 2 blade head
3. If four blades, I believe the OF head is way better but less scale looking - your choice
4. Use stabilisation and be sensible to not fly it above 10-12 mph (dependant on final weight of course)

I hope this helps and my build thread is here if you would like a read https://rc.runryder.com/t424802p1/

He who dies with the most toys is the winner!

PM  EMAIL  GALLERY  Attn:RR  Quote
10-29-2011 08:19 PM  6 years agoPost 5
JOJO HELIS

rrNovice

malta (Europe)

My Posts: All  Forum  Topic

Hi,

been reading your tread, thanks.

From what I can see and read, it seems that one of the options to consider is to go for a two bladed version, and therefore eliminate the need of any electronic stabilizer help. I assume that the tail authority shall be even better too...regards

Jojo

Jojo Helis

PM  EMAIL  GALLERY  Attn:RR  Quote
10-29-2011 09:07 PM  6 years agoPost 6
darrens

rrKey Veteran

United Kingdom

My Posts: All  Forum  Topic

Hi Jojo

A 2 blade head is fine and easier on the tail too

He who dies with the most toys is the winner!

PM  EMAIL  GALLERY  Attn:RR  Quote
10-30-2011 08:20 AM  6 years agoPost 7
JOJO HELIS

rrNovice

malta (Europe)

My Posts: All  Forum  Topic

Hi Darren,

thanks for your assurance. So I shall anyway need to order the fenestron tail drive system (134/37)right?

Jojo

Jojo Helis

PM  EMAIL  GALLERY  Attn:RR  Quote
10-30-2011 01:16 PM  6 years agoPost 8
Héli Suisse

rrApprentice

Geneva Switzerland

My Posts: All  Forum  Topic

Hi Jojo,

I fully agree with Darren from whom I've follow the progress in attempting solving some problems flying the EC 135 in windy conditions. I have an electric EC 135 2 blades flybared and she flies great, she's light (<10 kg) and both head and tail authorities are granted.

I've started flying the EC JetCat when Heli Command was not yet available and a Vario 4-blade head was flyable but you really had to concentrate on how to pilot the inputs. In windy conditions that could have proven being quite a challenging task. OF heads in that respect are much more compliant and convenient.

YES you do need 134/37, the gear box to increase the tail shaft speed from the mechanics, whatever system (electric or turbine) you select.

PM  EMAIL  GALLERY  Attn:RR  Quote
10-30-2011 01:58 PM  6 years agoPost 9
JOJO HELIS

rrNovice

malta (Europe)

My Posts: All  Forum  Topic

Yes, and this is the reason why I am talking to you guys, since there is nothing better than an advise from people who "been there done that".

What worries me is that form what one can read in this forum, this model seems to have been a challenge to whoever purchased one of these kits. Not denying the fact, that all models have their own challenges, but one hopes that when the day comes, the helicopter will be a real pleasure to fly...

I am sure you know what I mean.

Jojo

Jojo Helis

PM  EMAIL  GALLERY  Attn:RR  Quote
WATCH
 1 page 1606 views POST REPLY
HomeScaleAircraftScale HeliScale Helicopter Main Discussion › Vario EC135 Turbine
 Print TOPIC  Make Suggestion 

 1  Topic Subscribe

Monday, October 15 - 11:19 am - Copyright © 2000-2018 RunRyder   EMAILEnable Cookies

The RC discussion world needs to consolidate. RR is now one choice for that. Its software is cutting edge. It hosts on-topic advertising. Help RR increase traffic buy making suggestions, posting in RR's new areas (sites) and by spreading the word.

The RunRyder Difference

• Category system to allow Rep/Vendor postings.
• Classifieds with sold (hidden) category.
• Classifieds with separate view new.
• Answer PMs offsite via email reply.
• Member gallery photos with advanced scripting.
• Gallery photo viewer integrated into postings.
• Highly refined search with advanced back end.
• Hosts its own high end fast response servers.
• Hosts thousands of HD event coverage videos.
• Rewrote entire code base with latest technology.
• No off-topic (annoying) click bait advertising.
Login Here
 New Subscriptions 
 Buddies Online