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Thunder Tiger Raptors 30-90 - Imperio > 20oz fuel tank for Raptor 50
 
 
tailrotordave
Veteran
Location: Burbank, Ca

Hello again,
First this is on behalf of my flying buddy Tim. He has just converted his R30v2 to a 50V2 and was very impressed with the power but not so impressed with the flight times/fuel consumption. He and the owner of the LHS (Hobby Zone , Edwin) got together and started test fitting Dubro fuel tanks into Tim's R50.
They came up with the 20 oz tank as being a very slight interference fit between the frame rails and a bit of foam between the tank and the boom struts where it exits the back of the frame. The tank is placed in the frame on its side.
His Raptor is nose heavy with no fuel and (now) tail heavy with full fuel. We both flew it and it would hover hands off for a couple seconds at the beginning and the end of the fuel tank. He's still running pretty rich and can get 15 minutes of solid FFF/mild 3D.
I can get some photos of it later and post them here. We put a few flights on it today and a bunch of piros and the tank is very secure.
03-28-2004 Over year old.
 
 
greg
Key Veteran
Location: Yorkville, IL

I have heard the Raptor 60 fuel tank will fit in the Raptor 50. Is this true and has anyone tried it?
I myself am not impressed with my 9 1/2 min flight times with my OS.50 with the 60L carb. I would like a bigger tank but I also don't want an awkward looking fuel setup. Any retrofit pictures would be welcome.
03-28-2004 Over year old.
HOMEPAGE  
 
 
tailrotordave
Veteran
Location: Burbank, Ca

I'll post photos tomorrow

Here is one
03-28-2004 Over year old.
 
 
C-DOG
Veteran
Location: SunShineState

Yes the 60 tank will work in the 50

For I am the one that has posted about it several times in the past.
03-29-2004 Over year old.
 
 
fuse
Heliman
Location: singapore

May i know the part number for the 60 tank? how much bigger is that compared to the 50s? and do we need to modify any thing to fit.


thank you.


my 50s bird is nose heavy with the sub c cells (3300mah)
03-29-2004 Over year old.
 
 
tailrotordave
Veteran
Location: Burbank, Ca

Can you post a photo of the 60 tank in the 50 frame please?
03-29-2004 Over year old.
 
 
greg
Key Veteran
Location: Yorkville, IL

C-Dog is sending me some pictures of his modification and I will post them if says it is ok.
03-29-2004 Over year old.
HOMEPAGE  
 
 
tailrotordave
Veteran
Location: Burbank, Ca

If not, then email or PM them to me. I'm interested myself.
03-29-2004 Over year old.
 
 
Joe Ubaldo
Veteran
Location: Grand Rapids, MI USA

Here's a link outlining my experience with this subject...

LINK
03-29-2004 Over year old.
 
 
alextstone
Heliman
Location: Hattiesburg, MS USA

Uniflow fuel system

I am interested in converting to the 20oz tank with uniflow plumbing, but I do not know where to purchase the fuel system. I searched a couple of online merchants with no luck. Any suggestions?

"The significant problems we face cannot be solved by the same level of thinking that created them"
03-29-2004 Over year old.
 
 
BigJon
Senior Heliman
Location: us

Probably awesome flight time, but to heavy for 3D. How much does she weight? Thanks for posting. I`ll check back later for the PIC`s.
03-29-2004 Over year old.
 
 
helifish
Heliman
Location: fenton mo.

uniflow fuel system

go to www.heli-lessons.com this site will tell you everything you need to know
03-29-2004 Over year old.
 
 
tailrotordave
Veteran
Location: Burbank, Ca

BigJon, with full fuel it weighs 8pounds, 13oz.
After a few minutes, it's down to what it would normally be anyway, right? This gives you the option to fly for 15+ minutes or don't fill it up and fly it with the stock amount of fuel.........
03-29-2004 Over year old.
 
 
tailrotordave
Veteran
Location: Burbank, Ca

Thanks Joe and C-Dog. Here is the large (550cc) fuel tank that I installed tonight. I drilled a 5/16 hole in the rear of the frame for the exhaust to tank tubing.
I used a butane torch and my glass patio table to melt, flatten, and seal the lower nipple on the tank. Really happy with how it came out.
03-30-2004 Over year old.
 
 
tailrotordave
Veteran
Location: Burbank, Ca

Side view
03-30-2004 Over year old.
 
 
tailrotordave
Veteran
Location: Burbank, Ca

Right side view
03-30-2004 Over year old.
 
 
lifepak-1
Senior Heliman
Location: Edmonton

Not only can a R60 tank fit in there but mine has a R90 tank shoehorned in. Just ensure you have some type of material to dampen the vibrations from the frame onto the tank or else you will be carving nice little groves into them.
03-30-2004 Over year old.
 
 
Joe Ubaldo
Veteran
Location: Grand Rapids, MI USA

Nice work Dave. Let us know how she flies and how long your flight times are now. Enjoy!
03-30-2004 Over year old.
 
 
HelicopterJohn
Key Veteran
Location: Seffner, Florida (Just East of Tampa, Florida)

Dubro Fuel Tank Part #

tailrotordave

Do you have the Part # for the Dubro 20 oz. fuel tank? Do you have any pictures of the front of the tank where the plumbing is? Does the opening on the front of the tank for the fuel line exit come straight forward or is it on a slant?

Thanks in advance for any additional information.



OC Bob's Gathering #2 was a Premiere Event. Pictures in my Gallery
03-30-2004 Over year old.
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Phelipcopter
Senior Heliman
Location: Singapore

Hirobo Tank

Just put in an Hirobo 480cc tank in a R50. Small enough to get in between the frame and secure it with silicon and nylon straps. Will try it out this weekend if weather permits.
03-30-2004 Over year old.
 
 
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Thunder Tiger Raptors 30-90 - Imperio > 20oz fuel tank for Raptor 50
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