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Hurricane 550 Discussion and support of the Gaui Hurricane 550


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Old 06-25-2010, 06:50 AM   #1
torana74
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Default X5 in Oz. Build thread

With a huge thanks to Jack at Empire Hobby for their terrific effort in
getting a kit sent to Oz. This hobby needs more like him and his teams efforts
in promoting the Gaui name and also helping it's loyal followers.

***** this thread was originally written for the Oz heli forum "Archeli" and therefore i haven't gone into too many details about this and our Hurri's. Please yell out anything you guys want more info on and i will try get the answers*******************

I'll keep re-editing this post as i find better words/more info etc

For now, some pics of the box Very happy chappy today )





A few "What's in the box pics"

I must say that i'm very impressed with the presentation of this. Nicely
fitting sub-boxes all printed with what's inside



The instruction manual was sitting right on top. ie read this first!!
They are trying to take my fun away




First box as according to the destructions.
The frameset and bits nicely slid in with the canopy.



The canopy looks quite good. Sturdy aswell. Will report on that more later as
we go.



The bag bits unlocked.



The CNC work looks quite nice. Very smooth and neat.
I'm not sure about the motor mount.Looks like they stayed the way of the
Hurricane and can be a bit fiddly to set mesh. Requires the mount to be removed to access the bolts for the motor. No biggie,but could have been improved. But i still haven't read the instructions



Putting the frame together was a super simple and very quick affair.Was together in less than half an hour.(with coffee)
Even the wife commented on how quick it was...... something like, you won't have to worry about time after your crashes with this...

The instructions are well written but do need some work. Would be nice if the frame assembly pic was larger and easier to work out were the few different bolts went. Again no biggie as most bolts are M3x 6mm , just 2 are 4mm.
Common sense works and is very easy to see one bolt will go into a bearing if too long.
The instructions seem to bounce around. No real order. If you are up to a certain spot, need to flick through the
manual to find what you are seeking.

Also noticed a little piece of paper in with the bolts. An ammendment to the manual regarding a washer for the lower canopy mounts.
The manual does state on the front cover to download the latest version.

Also in my travels, i noticed that not all bits in frame box are for the frame(as i thought and got concerned when a few screws were left over) and needed to open other boxes to find required bits.Obviously packing requirements have dictated the spread of parts throughout the various boxes.

Pic of cnc bits mounted to one side frame


Pic of landing gear assembly.


The actual legs are the same as the Hurri 550,but now only use one bolt per leg to mount to the lower frame.



I do like the chrome skids and think they will be replacing all my others.To replace the landing gear in the future would just require the removal of 2 bolts and out it comes. I'm really liking the base of this heli.The double carbon keeps it very rigid, there are no tabs etc waiting to break, and from experience, the legs will give way in hard landings lessening the load to the frame.

The manual states to put the landing gear together first, then mount to the main frame. I did for the pics but originally did the lower frame/main frame together and found it less fiddly.

Completed main frame and landing gear about to meet.


To say this frame is thin is an understatement.
It really has been a very low parts count in the frame assembly and it weighs almost nothing


---------- Post added at 12:59 AM ---------- Previous post was at 12:28 AM ----------

Moving on upstairs.

The main gear/ head assembly.



The maingear/tail drive/one-way came preassmbled. 3 screws hold the 61tooth tail drive gear(ex Hurri main gear) onto the sleeve that goes through the one-way bearing.


The main gear has 4 screws that bolt to another housing that holds the one-way.

(pics didn't come out i noticed,so will dismantle again tomorrow and take again)


Main gear/shaft assembly bits. The little washer sits on top of the tail drive gear and under lower mainshaft bearing.Collar on top of upper mainshaft bearing.
Mainshaft is solid,8mm diameter.


Installed in the frame.Trick here is to make sure no up/down movement when tightening the collar




Moving onto the head assembly.
Having been used to the Hurri 550 head and sizing, all i can say is WOW.
The swash on the left is the X5 ,right Hurri 550.
The X5 swash certainly looks the goods and has a nice feel .



All the balls have 1.5mm allen key heads in them and were tight and pre-locitited.


The head came pre-assembleb but i took it apart for check.
The spindle is 6mm, and the dampers are cylinder shaped.
There were "red" dampers installed but i noticed in the packs that there
is a black set. Doesn't mention it in the manual as what's what.
I have left the red in there for the time being.
Also the bolts that hold the blade grips onto the spindle are larger than previously.Everything was tight and loctited.

The spindle on the right is Hurri 550(5mm)


The flybar carrier was next. This was another with the little piece of update paper.(washer installation behind bolt head).
In my previous Gaui builds, i have had issues with bearing quality. These feel terrific and the bearing sit in the headblock.



Flybar cage, washout arms/flybar installed


Looks like Gaui have been watching people's tricks in increasing pitch and avoiding binding. Different to see the flybar visible through the seesaw.


.................................................. .

more installments tomorrow eve
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Old 06-25-2010, 08:56 AM   #2
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Looks fantastic mate - thanks for all of the pics
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Old 06-25-2010, 08:57 AM   #3
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Tonight's been a bit slow Have two ladies here with the flu and they are making sure that they get the attention before the X5. It's a conspiracy i tell you but i know what's good for me.

Anyways, again we see Gaui using the solid plastic double links. Two sizes. A 30 and a 35. Some people i've come across don't like the double link and say they prefer adjustable ones to help get the setup correct.
In my opinion they are great. One less variable to worry about and if you need adjustment in these areas, hate to say but you would have an issue somewhere else that is causing it.

I do like that Gaui include a spare link of each size, spare rods and ball links,guide, bolt.



The servos chosen for this build are the BLS451/251 combo. Included in the kit are 3 servo horns(luckily futaba spline), balls,nuts and bolts and assorted little spacers to get the balls spaced correctly.
Also carbon servo retaining plates.The top plates extend out.I'm guessing for a little added protection and to keep the canopy away from the servo horn.
I've never been a fan of servos out in the open and have looked at possible crash damage. The aileron/pitch servos are fairly well hidden. The elevator and tail are fully extruded. Looking at it closely though, it really would have to be the perfect angle and a few things bent(ie really really hard stack) for them to see damage. One of those we'll have to see things.





Onto motor/esc next...... need power ..
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Last edited by torana74; 06-25-2010 at 10:25 AM..
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Old 06-25-2010, 09:00 AM   #4
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Quote:
Originally Posted by Mikej View Post
Looks fantastic mate - thanks for all of the pics
Thanks Mike and your welcome. I think the pics etc will help all us Hurri owners have a better idea what we can do with ours in regards to conversions/part swapping etc.

Also looking at the tail drive assembly, wouldn't take much to convert it to belt drive. A spacer and the pulley .

BTW,, the X5 torque tubed boom should drop straight into the Hurri and be poss to run 500ish blades.
Will confirm as i get to that bit.

Please ask questions on anything you guys want more detail on.

Vas
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Last edited by torana74; 06-25-2010 at 10:26 AM..
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Old 06-25-2010, 09:23 AM   #5
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nearly forgot.

The flybar paddles are Tiny!!!!
Held in by a couple turns and two grub screws. One at the front on the side and on the top.

My standard Hurricane ones weigh in at 18g, KDBB 50 size were 19g off memory.
These are 8 grams!!!!!. Might as well just have the flybar LOL.
We'll have too see how they go.



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Old 06-25-2010, 09:36 AM   #6
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Big Motor

What's in the box???





Scorpion 4020 910kv..... yippee





I'm a bit complexed with the speedy.
On the speedy it states 3amp bec yet in the manual it states 4amp.
Will have to research a bit more as i had planned to use the onboard bec for now. I'm a fussy bast**d for keeping the weight to a min.
Was informed that Gaui team are running 8v and was thinking about a receiver pack and reg for tail eventually. Just not here on hand . Do have a sportsbec .Just means more stuff on the heli

Will 3amp be sufficient for 451's/251 with 500mm blades??????
Suggestions please.
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Old 06-25-2010, 11:39 AM   #7
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Hi Torana74

Awesome thread dude! Great pics, my X5 arrives on Monday, so these pics will be a great help with my build.

Sorry I cannot answer your question about BEC ampage, but I know a man who will. Damien (AKA - eDek) is the man to answer this question. Hopefully he will be along to advise the ampage or drop him a PM.

I need some help bro, I cannot decide on what servos to use in my X5. Can you please take a look at what I have got in mind and comment on each one. I am no 3D pilot, and when I do eventually get round to doing 3D it will most likely be some mild stuff. (The X5 was somewhat of an overkill purchase for my skill level - but hey its an AWESOME heli and look forward to receiving it.)

Without breaking the bank balance any further, the servos i have in mind are the following:

http://www.fast-lad.co.uk/store/kds-...e-p-10251.html

(Ideal price range but, will it fit, dimension is: 35.5mm x 15mm x 28.6mm)

http://www.fast-lad.co.uk/store/futa...vo-p-4148.html

(A little slow??)

http://www.fast-lad.co.uk/store/hype...o-p-10085.html

(A little rich for my flavour but if I have to......)

http://www.fast-lad.co.uk/store/k104...vo-p-8031.html

(I am not a very big fan of Align, however, if I really have to.......)

I am open to any other suggestions dude, just nothing over the £45 price range.

Thanks in advance.

Grant

PS, keep them awesome pics comin!
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Old 06-29-2010, 02:33 AM   #8
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Hi Vas

Ha ha, the boys here call it an anti-rotation bracket, hence my confusion, personally I think elevator guide is a more fitting description. Thanks for the pic bud and clearing that up.

I can see your concern, like you said, probably will never hit in flight, however if left in that position on spool up ......................

Yeah gonna really enjoy building this bird, only problem is it will not be for a month or so, I have a wedding and honeymoon coming up in a fortnights time!
Thanks alot for this super thread dude and let us know what your final decision is regarding the electrics.

G

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Old 06-29-2010, 04:10 AM   #9
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I wouldn't be too sure about it not hitting. I had an old HDX300 that used to go through AR brackets like they were going out of style. the flybar was able to make contact, and it did plenty of times. in my case the fb would come easily 1/3 down the bracket, clearly a design flaw in the case of that bird.
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Old 06-29-2010, 05:59 AM   #10
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G,it's anti-rotation bracket here too. I tend to make my own technical terms when the memory banks won't boot up.

Congrats on the wedding and have fun on the honeymoon. Lots of time for helis after. Inbetween what she wants to do that is

The X5 is a really nice and quick build. I'm sure if you had everything on hand, it could be done easily in an evening. Enjoy
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Old 06-29-2010, 06:01 AM   #11
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Default Anti-rotation bracket vasification

After reading NG's comments(thanks mate) i got out the dremel.
A few touches and 30 seconds later. Better safe than sorry i guess. Atleast now it
clears easily.





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Old 06-29-2010, 06:36 PM   #12
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Vas

Thanks for the wedding wishes dude, I must say I am quite looking forward to it, not to mention the week off work sunning myself in the Canary Islands doing some surfing and kitesurfing, oh yeah and keeping the missus happy!

Nice job on the anti rotation bracket, looks like me and you both have servos with friggin short leads! WTF is all that about??? I am interested to see what you come up with dude.

BTW what camera are you using?

G.
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