Trekker 800 stretch to 900

[utrinque]

Originally Posted by p.weyts

Good point

To make things clear... XXTREME 800 is my favourite 800 class heli. Unfortunately I am not going to get it... yet

Originally Posted by satsuma

Have just had an awesome custom canopy done for the Logo
http://s167.photobucket.com/user/sat...6b63b.jpg.html

My favourite canopies are Fusuno. I have one for X5 but I will get more of them for biger sisters.

[satsuma]

Originally Posted by utrinque

To make things clear... XXTREME 800 is my favourite 800 class heli. Unfortunately I am not going to get it... yet



My favourite canopies are Fusuno. I have one for X5 but I will get more of them for biger sisters.

Also my favourite 800 heli, big and smooth, it was also a pleasure to build with zero issues along the way
Fusuno did my canopy for me, decent quality and fast turn around.

[doitalldal]

Hi satsuma,

Was just wondering how you stretch your tail & tt what method do you do cut and shut or replace will new longer tube ?

If replace where do you get the tube as I have been struggling to get long lengths of thin wall tube for tail extensions.

Looks great I love stretch machines why fly standard when you can fly a stretch
Darren.

[satsuma]

Cut and shut is the only way, I can't find thin wall long enough lol BUT, the boom is then sleeved in a carbon tube that JUST fits over the Align boom, so NO joints show.

[nightflyr]

Originally Posted by satsuma

Nightflyr, I sure as hell DO

Awesome beast you have there lol

Is the raised tail manufactured by yourself, looks superb., would be good for me in a big Bell 412.

What blades are you running please ?

Ahhhh .... got the big bird bug....

The offset tail is my own....





The blades....

[utrinque]

Satsuma show us 8 foot long turbine Ecureuil.

http://rc.runryder.com/helicopter/t694973p3/

[Swooper6]

That is really cool man. Would love to know what parts (especially boom) that you used to do the stretch. Or was everything custom from raw stock?

[satsuma]

Originally Posted by utrinque

Satsuma show us 8 foot long turbine Ecureuil.

http://rc.runryder.com/helicopter/t694973p3/

Here you go, Jakadofski 5000 pro turbine, 23KG weight, 2.3 metre rotor span, scale Starflex head, metal M blades mains and tails.

[satsuma]

Originally Posted by Swooper6

That is really cool man. Would love to know what parts (especially boom) that you used to do the stretch. Or was everything custom from raw stock?

All customized items from different sources,cut and fabricated to fit/extend everything.

[satsuma]

Nice work Nightflyr.
Are the SAB blades semi sym or fully sym ?

[satsuma]

Flew the 900 today at 1400 rpm, getting 7 mins with just over 25% left in lipo's, esc and motor barely warm .mild sport and scale type flying though.

[utrinque]

Originally Posted by satsuma

Here you go, Jakadofski 5000 pro turbine, 23KG weight, 2.3 metre rotor span, scale Starflex head, metal M blades mains and tails.

She is beauty.

Metal blades WOW. She is serious...

[Swooper6]

that is one nice heli man good job

[satsuma]

Thanks

[satsuma]

Done a fair few flights with the 900 now, it's dialled in on the V bar and flying very well at 1200. 1400 and 1500 rpm, no problems etc even at 1200 and the blade noise is awesome

[utrinque]

Originally Posted by satsuma

blade noise is awesome

I can not wait to stretch mine to 800. I have ordered parts. I will not hurry. You are so lucky to fly such gorgeous ladies...

In fact I am analysing why there is so much "metalic" noise in Gartt. Do you have any clue? Could it be related to bearings? They are so smooth... I suspect motor but it is pretty well balanced.

[satsuma]

Is the metallic like noise there all the time, or does it change with the headspeed ?

[HeliGriff]

Originally Posted by satsuma

Test flew my 900 stretch Trekker today, great fun, will keep my hand in on my big scale stuff over the winter lol.

Boom, torque tube and tail control rod extended by 4 inches and Sab 880 blades fitted, total rotor span is 1900mm, flies like its on rails lol

Satsuma,

I love the 900 stretch! I own a Trekker as well. I'm thinking of stretching a 700. Can you explain the term "cut and shut"?

Thank you,
HeliGriff

[nightflyr]

Originally Posted by satsuma

Nice work Nightflyr.
Are the SAB blades semi sym or fully sym ?

[utrinque]

Originally Posted by satsuma

Is the metallic like noise there all the time, or does it change with the headspeed ?

I assume sound is motor related.

Please compare two different helis with SK3 T700 Helidrive make high pitch, iritating, metalic noise:

This is stretched 600 to 700mm with SK 3 T700:

2013-06-23 700ta (5 min 41 sec)

This is Gartt GT700:

Andrzej with his Gartt 700 - maiden flight (3 min 59 sec)

Those are Assault 700 and Align 700 v3 with Align motors they sound better, no metalic noise:

Assault:

Assault 700 DFC (5 min 29 sec)

Align:

Emil ze swoim TREX 700 DFC na Chudoby 11/11/2013 (6 min 11 sec)

In general I DO NOT care about sound that much. I am just couriou if sound is related to:
- motor
- frame
- bearings
- blades

Definitely Align sounds sweet, Tarsan Karlik Assault sounds good and two my models sound worst...