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Robbe Cuatro - Millennium - Nova - Dyna-X > Robbe Nova Cuatro Gasser - Build Thread
 
 
ChrisKR
Heliman
Location: Bangkok, Thailand

My Posts This: Topic  Forum		Hello Guys,

the Robbe Forum seems quite less active than others, so I decided to post pictures of my Nova Cuatro Assembly here.

No big problems until now, some parts were mixed up in the plastic bags and one thrust bearing needs to be replaced.

I hope you like the pics and I'll keep you posted.

Greetings from hot Bangkok

Christian

03-15-2008 Over year old.
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ChrisKR
Heliman
Location: Bangkok, Thailand

My Posts This: Topic  Forum		This will be the electronics:

3x JR 8311 for Swashplate
Futaba 9001 for Throttle
CSM SL720 Gyro w/ JR 8900G

Futaba R617FS 2.4GHz Receiver

I consider adding the Eagletree telemetry system:

http://www.eagletreesystems.com/Plane/plane.html
03-15-2008 Over year old.
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Markus
Senior Heliman
Location: Montreal

My Posts This: Topic  Forum		Cuatro

Great Project.
I don't like to see a hammer next to it though.....lol
03-15-2008 Over year old.
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ChrisKR
Heliman
Location: Bangkok, Thailand

My Posts This: Topic  Forum		hehe.. didnt have to use it yet though.
03-15-2008 Over year old.
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Jarno
Veteran
Location: Finland

My Posts This: Topic  Forum		Hammer is only used for hitting your fingers if you forget to push the tail boom all the way in before the first flight. This is what almost happened to me when I did my first Cuatro. Luckily I noticed that before the first flight.

Anyway very nice project Chris. I have two Cuatro gassers and love them. I'm also converting my third one to electric.

Remember to lube the tail gears well and you'll be fine with you helicopter.

Regards
03-16-2008 Over year old.
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ChrisKR
Heliman
Location: Bangkok, Thailand

My Posts This: Topic  Forum		fast progress..

03-18-2008 Over year old.
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ChrisKR
Heliman
Location: Bangkok, Thailand

My Posts This: Topic  Forum		Hi Guys,

here some pictures of the progress.

Have a greet week

Christian

06-09-2008 Over year old.
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Bhavik
Senior Heliman
Location: London

My Posts This: Topic  Forum		NICE! What engine is that ? It fits the cooling shroud perfectly.
06-09-2008 Over year old.
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ChrisKR
Heliman
Location: Bangkok, Thailand

My Posts This: Topic  Forum		It's a TRM modified G231-SLH. The fan shroud gave me some headache, it would only fit nicely if there is a 1cm gap between the 2 halfes. I closed the gap with Scotch silver duct tape and used 2 layers (non sticky side down) around 2cm wide in the center. Time will tell if that works.
06-09-2008 Over year old.
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ChrisKR
Heliman
Location: Bangkok, Thailand

My Posts This: Topic  Forum

Here I was still using some black tape which was easily removable. I wanted to get the needed size of the pieces first before attaching that super sticky duct tape.
06-09-2008 Over year old.
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Bhavik
Senior Heliman
Location: London

My Posts This: Topic  Forum		Thanks for sharing, I too am thinking of converting my glow cuatro to a gasser.
06-09-2008 Over year old.
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rbort
Elite Veteran
Location: Franklin, MA - U.S.A.

My Posts This: Topic  Forum		My friend Jeremy had one of those YEARS back

Actually turned me onto gassers as he had a tuned pipe on it and that thing was ballistic! Flew hard and fast! Looks like its coming along good, keep up the good work!

-=>Raja.

1005 Gasser, G26 3DMax++, 2205+ flights
Spectra-g, G26 3DMax, 870+ flights
06-10-2008 Over year old.
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Jarno
Veteran
Location: Finland

My Posts This: Topic  Forum		Nice to see you here on Robbe forum as well Raja. I've been reading your thoughts on gasser forum for long time.

I fly two Cuatro gassers now and I'm very happy with them. I did put one of my models on diet and managed to bring down weight under 6kg so it is FAI legal now as FAI flying is my thing.

Regards
06-10-2008 Over year old.
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jwb1450
Heliman
Location: Manchester, UK

My Posts This: Topic  Forum		Hi - I completed my Wren MW54 powered Cuatro at the beginning of the year using a David Owens conversion. I too had quality issues - especially the clutch bell and the seesaw which wouldn't fit through the head block. The clutch bell caused belt rub issues on the lower rear sideframes. If you need more detail - give me a shout
06-18-2008 Over year old.
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shawmcky
Key Veteran
Location: Isle of Wight,United Kingdom

My Posts This: Topic  Forum		Alternative Ratio/Millenium.

Could anyone tell what gear ratio the Nova gasser uses.I have converted my Millenium 90 to gasser and running at 8.1 with a 23cc Zenoah.Any thoughts on head speed ,i am using 710mm carbon blades,Gv1 gov.Any thoughts on fine tuning this conversion would be much appreciated as i would imagine the models are very similar as i was inspired by the cuatro build here.
06-24-2008 Over year old.
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ChrisKR
Heliman
Location: Bangkok, Thailand

My Posts This: Topic  Forum		The nova cuatro with stock gasser conversion uses 1:8.9 (with 23 teeth clutchbell). When using the 27 teeth cluth bell it would be 1:7.6.
06-25-2008 Over year old.
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Jarno
Veteran
Location: Finland

My Posts This: Topic  Forum		You should really get lower gear ratio for your Millennium if you're using regular size blades like 710mm to make it perform best.

Running e.g. 1850 rpm's on the head makes your engine to rev up too much with your current gear ratio. There are several pinions available for Millennium clutch bell and I would get at least 16T or bigger.

I run 1650 on the heads of my Cuatro gassers. I use 26T and 27T clutch bells on my machines. Toxic modified engines are running very well at high rpm's as well like 13500.

Regards
06-25-2008 Over year old.
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shawmcky
Key Veteran
Location: Isle of Wight,United Kingdom

My Posts This: Topic  Forum		Millenium conversion

Thanks guys for the tips,i will look into some alternative ratios.I would like to get to 6.75 or 7.1 if i can.
06-25-2008 Over year old.
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shawmcky
Key Veteran
Location: Isle of Wight,United Kingdom

My Posts This: Topic  Forum		Robbe ratio

Just fitted a new G230 Puh and a 16 tooth gear.I think this should give me about 7.5.1.will maybe go to a 17 tooth if need be.
06-27-2008 Over year old.
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pierpan
Heliman
Location: Trieste - Italy

My Posts This: Topic  Forum		Manifold for nova

Hello, I'm from Italy, I see in your photos that you have a red (seems metallic) manifold for your zenoah. Where have you find it? I would change the plastic original. Thanks for your kindness

Pierpaolo
07-09-2008 Over year old.
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Robbe Cuatro - Millennium - Nova - Dyna-X > Robbe Nova Cuatro Gasser - Build Thread
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