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Gaui EP550 › Gaui 550 (IRCHA 425 stretch) build
01-03-2010 03:32 PM  7 years agoPost 1
nexgen

rrNovice

Brainerd, MN - USA

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Ok so I have not posted over here in a while so I thought I'd share with you all my Hurricane 550 (IRCHA 425 stretch) build.

I got 3 IRCHA kits at a local funfly last fall, sold 2 of them to buy parts and built the 3rd one. I ended up stretching it to 550 right out of the gate. I have never had a heli this large, so everything about it was new from a size standpoint, for instance I couldnt believe how large the servos really were in person!! It has been a fun build and even more fun flying it.

heres what my current setup is.

AR6110e (it works just fine at long range, no hits)
Gaui 850Kv/Exceed RC 80A OPTO
Hyperion DS20FMD³,
Hyperion DS20GMD¹/DS760

gearing is 16/42/19/61

here are some pics of the progress to this point:

Frame built, started in its native 425 form

little man helping out:

motor and servos installed:

a little paint on the plastic canopy, it turned out better than I thought. gluing the 2 halves together was a pain but I did a fair job i'd say:

on to the stretch, I was surprised at how much longer the boom was than the 425 boom:

I got a bunch of free parts in that crazy ReadyHeli giveaway, so added some metal bits to the head, got some 500mm woodies, lightweight paddles, and kbdd 92mm tail blades. also added a larger fin from a Hirobo to keep the butt up:


te rest of the electronics:
the rx tucks in nicely in the frame where the tail servo used to go, the bec up front on the bottom, and the esc on the esc plate. wiring is hidden fairly well:




I have also since added some Sonix cnc main grips, and have some cnc tail grips en route.

heres a final couple pics of the complete heli:



By the time you read this, you've already read it!!

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01-03-2010 03:34 PM  7 years agoPost 2
nexgen

rrNovice

Brainerd, MN - USA

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AND SOME VIDEOS!!!

Maiden voyage

Watch at YouTube

Flying at work

Watch at YouTube

more flying at work, this time dipping into the snow inverted!!

Watch at YouTube

By the time you read this, you've already read it!!

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01-12-2010 07:07 AM  7 years agoPost 3
FPC

rrNovice

Taipei,Taiwan

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AND SOME VIDEOS!!!

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05-10-2010 10:41 AM  7 years agoPost 4
3d-wanna-b

rrApprentice

Strawberry, Ar. U.S.A

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looking good nexgen..... I just picked up a 425 basic today myself to start on 550 stretch... How does she fly? You wouldn't happen to have a link to those tail and main blade grips would you?

<<Beating the air into submission!!!>>

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05-10-2010 02:23 PM  7 years agoPost 5
kc8qpu

rrElite Veteran

sc

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Did you notice any difference with the stretch??? Personally I love the way my 425 flies. Perfect size just to throw in the car and go and seems to track and fly great at the 425 size. If I were you I'd be careful with that 6100 rx. I believe that is a park flyer rx.

Carpe Diem!!!

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06-05-2010 08:45 PM  7 years agoPost 6
nexgen

rrNovice

Brainerd, MN - USA

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man I should get on here more. yes I notice a big difference going to the 550 moom/belt/blades. I'm currently running a Scorpion 4020-901 kv motor and the thing is a BEAST. words dont describe it. go to my YT through one of the other vids, and see all the newer vids of me and this bird in 550 form, it is like night and day,

By the time you read this, you've already read it!!

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02-04-2011 07:12 PM  6 years agoPost 7
raptoro50

rrApprentice

Germany

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looks a bit strange with the long boom.
maybe you can put a biger/longer canopy on it.

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