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**snotvis** · 10-08-2011, 01:22 PM

Try this guy, he is in my club. [url=http://www.thegauistore.co.uk/]The Gaui Store - Gaui Kits & Spares for 200 255 425 550 X5 X6 X7 330x[/url]

**Mikej** · 10-08-2011, 01:50 PM

I get my (550) spares from a variety of places, in the UK
RossMods, Buzz-Flyer, Gaui-mad, thegauistore

from Asia
Flying-hobby, HobbyKing, Infinity-hobby

From USA
Allerc, BPP

The 425 is basically a shortened 550, the bits that they changed are the boom, belt, rudder rod, blades, tail rotors, fly-bar paddles, gearing, motor - it's really not much if you ignore the blades, motor and gearing, you used to be able to get "stretch kits" for about $15 part number 204662 - bear in mind that the 425/550 has been available with 3 boom sizes

Small - 425mm blades
Medium - 475 / 500mm blades
Long - 550mm blades

You will also need the appropriate belt and rudder rod for the boom length. Changing the gearing is dead easy - you change the "primary gear" and pinion. The big question is generally whether or not you can gear you HS down enough with your current motor to hit a sensible HS for the 500 or 550mm blades (around 2000 rpm is ideal).

Any other questions just shout.

Cheers,
Mike (Hurricane Anorak - I have 2 x Hurris, one a FBL500 blade, the other FB 550 plus I built up a 425 as a 550 for a mate)

**Davy Crockett** · 10-08-2011, 02:12 PM

That tells me everything I need thanks!!

Only thing I need to decide now is do I stay with the 425 or extend it to 500 or 550?!!!

**Mikej** · 10-08-2011, 04:19 PM

You've got to try it - my personal favourite is the 500mm blades, flies fantastic, what motor do you have ?

**Davy Crockett** · 10-08-2011, 07:49 PM

Not sure without looking, I'm away from home so I'll look when I get back tomorrow.

The bloke who I got my 425 from had another with the 550 boom and it flew superb!

**Davy Crockett** · 15-08-2011, 11:45 AM

I've had a look at the motor and there are no numbers or anything to say what type/power it is, all it says is Gaui

Looking at the spec when I bought it, says 500 class motor

not much help I know!!

**Mikej** · 15-08-2011, 01:20 PM

I think that is probably the Gaui 1400kV, - you can just about use that for 500mm / 550mm blades using a 14T pinion and a 60T primary gear and then run a 80% or 85%

Is it a black body ?

**Davy Crockett** · 15-08-2011, 01:28 PM

Black top and base, silver body

Running 15T pinion and 50T main

[IMG]http://i.ebayimg.com/00/$(KGrHqQOKo8E4i7FdKrbBOKYQC0Egg~~_12.JPG[/IMG]

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Hurricane 425 question

Hurricane 425 question

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