Trex 450 EC135

Scale helicopter projects, links and building tips.

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chaos505
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Trex 450 EC135

Unread post by chaos505 » Wed Oct 03, 2018 3:06 pm

This is my 1st Scale heli.
However i didnt like the way it looked "stock".

so i masked and painted the panel lines and undercarriage for more details.

I do have a question though, whats the recommended pitch for scale?
Test hovered it and found the tail was not holding well and my stick was at ~85% throttle

wit out the body it was flying well
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skytrooper
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Re: Trex 450 EC135

Unread post by skytrooper » Sat Oct 06, 2018 12:07 pm

450 Fenestron:
Ubluwulululululu....!
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Theuns v V
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Re: Trex 450 EC135

Unread post by Theuns v V » Wed Oct 10, 2018 6:41 am

I am by no means clued up on hellies but I also wonder if the standard tailrotor is perhaps "intefearing" with the scale tail. My logic tells me that the airflow from the tail might not be as smooth and therefore effective as it can be around the large area that is being blanketed by the scale tail.

I stand to be corrected though.

A tip for the future, if you want to highlight small detail like pannel lines, you could do a "pin wash" where you use artist acrylic ink mixed with water that you apply into the lined with a small fine tip brush. The ink should wick into the line and give it a nice look without having to mask the whole thing. If the ink goes where you dont want just wipe it off :)
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chaos505
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Re: Trex 450 EC135

Unread post by chaos505 » Wed Oct 10, 2018 10:01 am

Theuns v V wrote:
Wed Oct 10, 2018 6:41 am
I am by no means clued up on hellies but I also wonder if the standard tailrotor is perhaps "intefearing" with the scale tail. My logic tells me that the airflow from the tail might not be as smooth and therefore effective as it can be around the large area that is being blanketed by the scale tail.

I stand to be corrected though.

A tip for the future, if you want to highlight small detail like pannel lines, you could do a "pin wash" where you use artist acrylic ink mixed with water that you apply into the lined with a small fine tip brush. The ink should wick into the line and give it a nice look without having to mask the whole thing. If the ink goes where you dont want just wipe it off :)
:lol: thanks for the tip.

Was thinking the same thing about the tail.
It was holding fine when in pod & boom config, I have added bigger tail blades so need to test.
could be a combo of the added weight and "dirty air"
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Re: Trex 450 EC135

Unread post by cakesmasher » Sun Jan 06, 2019 11:11 am

Hi
Did you see my post?
Price R4500. Still available.
https://www.avcom.co.za/phpBB3/viewtopi ... 1#p2000194
20181207_150127.jpg
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Wonko the Sane
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Re: Trex 450 EC135

Unread post by Wonko the Sane » Sun Jan 06, 2019 11:33 am

chaos505 wrote:
Wed Oct 03, 2018 3:06 pm
This is my 1st Scale heli.
However i didnt like the way it looked "stock".

so i masked and painted the panel lines and undercarriage for more details.

I do have a question though, whats the recommended pitch for scale?
Test hovered it and found the tail was not holding well and my stick was at ~85% throttle

wit out the body it was flying well
Very nice work there chaos! Yes, obstruction of airflow is the cause... bigger tail feathers will in all likelihood improve it but will not go away... going FBL will also help by reducing the drag from the paddles.

W
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My flying is not that bad....I've never left one up there..

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chaos505
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Re: Trex 450 EC135

Unread post by chaos505 » Sun Jan 06, 2019 8:52 pm

Thanks Wonko

Sadly i've put the heli back in pod and boom, and gave the body back to my friend.
Maybe will reinstall it when i get the align V2 EC.
I think this body was the V1 the front part is fixed so you have to connect the battery through the window
"Engines are the hearts of planes, but pilots are their souls"

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