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View Full Version : My first scale attempt: HeliArtist AS350 with Trex 450 mechanics (with movie!)


Patriek
11-02-2009, 02:33 PM
Here is the result of my first scale attempt. It's rather fun-scale and for the moment I am not planning on major detailing or a tri-blade rotorhead; my goal was to make it more like a helicopter in the air rather than a "flying broom stick" :D - but maybe when I get bored this winter I might add some detailing, who knows :D

I started with my 450 as a learning curve towards my next project (Trex 600E mechanics in a Funkey MD500E, also fun-scale ;) ) and I am quite happy with the end result! It is really joyfull to watch this little machine flying around the sky!

Thanks to the help of xpower180 it went together quite easiliy. Only minority I found was the quality of the supplied screws (easy to strip and breaking the head off...). Other challenges I had to tackle: the elevator servo (HS65MG) was hitting the fuselage and prevented the fuselage to fit. But with a hairdryer and patience this was easy to get by. Heating the fuselage and slightly deforming cleared it enough to fit easily (it doesnt show from the outside). A bit of dremeling on the doghouse area to clear the swash servo linkages and a bit of dremeling on the tail unit to clear the tail pitch slider, and all was good :) If I can put this together then everone can :D

Heliartist AS350 fuselage
Trex 450 SEv2 mechanics
HS65MG cyclic servos
GY401 & S9650 on the tail
JGF500TH motor & Kontronik Jazz 40-6-18 ESC (headspeed 2100rpm governed)
335mm wooden blades, pitch -3, 5, 11 (cyclic 5), 25% expo

I think I can pull off 9 minutes of flighttime on 2170mah lipos but I am still testing that with FDR's and timed flights.

In 15C (60F) ambient temp the post-flight electronics temperature:

Motor: 30C (85F)
ESC: 32C (89F)
Lipo: 38C (100F)

Here's a movie of part of the maiden flight. I hope you enjoy :) YouTube - Scale AS350 with Trex 450SEv2 mechanics



Patriek

cabojay
11-02-2009, 03:25 PM
Very Nice ..Good work!!! Thanks for sharing... Jay

sidneyw
11-02-2009, 03:32 PM
Nice work. ;) About a month and a half ago, a corner of my heli landing pad (light rubber) sucked up by rotor wash during landing, my 5-bladed MD500e went down in split of a second. I am now using a piece of plywood. :YeaBaby:

Patriek
11-03-2009, 05:31 AM
Very Nice ..Good work!!! Thanks for sharing... Jay

Nice work. ;) About a month and a half ago, a corner of my heli landing pad (light rubber) sucked up by rotor wash during landing, my 5-bladed MD500e went down in split of a second. I am now using a piece of plywood. :YeaBaby:

I really appreciate the compliments guys, thanks :thumbup:

@ sydneyw; yeah I should make a nicer and beefier landing pad, if not for what you have experienced then foor the looks :YeaBaby:

Here's some pictures of this bird:

http://img9.imageshack.us/img9/1227/68532397.jpg

http://img18.imageshack.us/img18/7917/27880542.jpg

http://img188.imageshack.us/img188/6501/26120281.jpg

Patriek

Loner
11-03-2009, 02:56 PM
Nice job.:thumbup:
Looks to be good flyer as well.

blade77
11-06-2009, 07:12 AM
Nice heli you got there - is there enought tail control with the 2100 headspeed? what pinion are you using?

Patriek
11-06-2009, 08:10 AM
Nice heli you got there - is there enought tail control with the 2100 headspeed? what pinion are you using?

I am using a 11T pinion and the tail is smooth as silk :)