N.S. BlueBird 0.25 ????????  
View related threads: (in this forum | in all forums)

Tower Hobbies
Enter up to 4 keywords or Tower stock numbers
Logged in as Guest



Users viewing this topic: none
  Printable Version
       

All Forums >> Glow Engines, Gas Engines, Fuel & Mfg Support Forums >> Glow Engines >> N.S. BlueBird 0.25 ????????
Page: [1]

Login
Message << Older Topic   Newer Topic >>
N.S. BlueBird 0.25 ???????? - 7/31/2005 2:35:10 AM   
1900Driver


 

Posts: 22
Joined: 10/26/2003
From: Kitchener, ON, CANADA
Status: offline 		Just pulled this engine off a friends old smashed up Carl Goldberg Eaglet. (no worries it was the wing that took the hit the prop didn't even break).
Anyway he gave me what was left of the plane the other day. After it had been sitting in his basement forever!!!
The engine is all that may be any good. I cleaned it and it seems good enough but I have never heard of the make. I would imagine it's some cheap Chinese knock off of the O.S. 0.25. Does any one have any info on these engines where they came from how big a piece of junk they may be.

I'll have it on the test bench by the end of the week if no one has any info I'll let you know..

Thanks for the replies.

B
       Post #: 1

RE: N.S. BlueBird 0.25 ???????? - 7/31/2005 3:05:45 AM   
w8ye



Posts: 18134
Joined: 12/11/2001
From: Taylortown, OH, USA
Status: offline 		Last year someone in Australia bought one.

I thought the Kangke Co in Shanghai made them?

< Message edited by w8ye -- 7/31/2005 3:22:23 AM >

_____________________________

Attended the CutFinger Institute of DirtNap University for years but never did graduate....

Club Saito Member #7
Original AMA #31261

(in reply to 1900Driver)
       Post #: 2

RE: N.S. BlueBird 0.25 ???????? - 7/31/2005 4:07:30 AM   
Dsegal


 

Posts: 1799
Joined: 10/20/2002
From: Philadelphia, PA, USA
Status: offline 		Saw my first Bluebird last week when a club member showed up with one a Sig LT-25. Very odd large carburetor on it. Ran OK but not impressed with its power output. He got 3 of them from someone in another state. I could find nothing in a Google search.

_____________________________

Dave Segal

(in reply to 1900Driver)
       Post #: 3

RE: N.S. BlueBird 0.25 ???????? - 7/31/2005 4:31:27 AM   
w8ye



Posts: 18134
Joined: 12/11/2001
From: Taylortown, OH, USA
Status: offline 		There's been a little talk about them on here.
According to what I read, they are related to the Brat.
Apparently, they are no longer imported as blue birds?
Click on the link for the posts....

http://www.rcuniverse.com/forum/searchpro.asp?phrase=bluebird&author=&forumid=114&topicreply=combined&message=both&timeframe=%3E&timefilter=0&language=single&top=500&criteria=AND&minRank=0&sortMethod=d&submitbutton=+OK+

< Message edited by w8ye -- 7/31/2005 12:25:08 PM >

_____________________________

Attended the CutFinger Institute of DirtNap University for years but never did graduate....

Club Saito Member #7
Original AMA #31261

(in reply to Dsegal)
       Post #: 4

RE: N.S. BlueBird 0.25 ???????? - 7/31/2005 9:35:12 AM   
Kweasel


 

Posts: 1108
Joined: 1/7/2004
From: fort worth, TX, USA
Status: offline 		The Blubirds were some of the early Chinese "OS" clones. I first saw them in the mid 80s about the same time as the Royal and ASP appeared. The performance seemed to vary, some ran as well as an OS FSR, many did not.

(in reply to w8ye)
       Post #: 5

RE: N.S. BlueBird 0.25 ???????? - 7/31/2005 5:09:16 PM   
downunder



Posts: 3279
Joined: 10/10/2002
From: Adelaide, AUSTRALIA
Status: offline 		I've got an N.S. Bluebird 51 but I've only ever run it on the test stand (yeah, that really rich break in I did ). It seems to go OK after I supposedly ruined it....same prop, plug and fuel and it turned 1000 revs higher than my Rossi 45. My local hobby shop owner used Bluebirds and he was delighted with them but told me they haven't been available in Oz for a few years.

(in reply to Kweasel)
       Post #: 6

RE: N.S. BlueBird 0.25 ???????? - 7/31/2005 6:47:01 PM   
modeltronics


 

Posts: 228
Joined: 2/26/2002
From: Horizon City (near El Paso), TX, USA
Status: offline 		A freind of mine imported them for a while. I have run most sizes of them and they run OK. The only problem I had is after many gallons of fuel in the 51 with the Blue Bird factory pipe running a 10X8 prop I broke a rod. I think all the engines were AAC. When my friend quit importing them he gave me the supply of parts for them that he had. As long as the parts hold out I will keep running them.

(in reply to downunder)
       Post #: 7

RE: N.S. BlueBird 0.25 ???????? - 8/1/2005 9:18:51 AM   
1900Driver


 

Posts: 22
Joined: 10/26/2003
From: Kitchener, ON, CANADA
Status: offline 		Thanks for the replys

Here's the scoop with this bluebird engine.
After much fuss I got the thing running on the test stand. It seems that I can either get a perfect idle, OR a fair top end but I cannot do both. Also the hi speed needle valve goes from slobbering rich to smokin' lean in just two clicks. When I did get a good idle the acceleration to high end seemed to be too rich, the engine would sputter and cut out. When I set the engine up to run at high speed (more than slightly rich), when the throttle was reduced I could not maintain a decent idle.

I'm sure this scenario has popped up a thousand times on this forum but any ideas?????

Thanks
B

(in reply to modeltronics)
       Post #: 8

RE: N.S. BlueBird 0.25 ???????? - 5/2/2006 9:07:55 PM   
VeeAte



Posts: 899
Joined: 3/11/2006
From: Geraldton, AUSTRALIA
Status: offline 		Sorry to drag up an old post, but I recently was given a Bluebird N,S .46 engine. This thing was coated in gummy half dried up castor oil and I couldnt turn it over or operate the carb barrel at all. Soaked it in some methanol for 20 odd minutes and slowly got everything rotating and it actually has a surprising amount of compression still and the bearing all run nice and free.

The engine is made in Taiwan (stamped on the engine mount tab I think) and apparently the carbs on them arent worth a pinch of s*%t, but with an O.S or similar good carb they are supposed to be a very good engine. Although not powerhouses they were a good cheap engine for their day.

The exhaust manifold has the same bolt pattern as Enya engines. Compared to a MDS .40 (yuck I know) the .46 Bluebird has a shorter stroke, but a bigger piston so am guessing it should rev harder than the MDS. The hole in the carb is also very big compared to my O.S 46AX and the MDS .40.

This may be why they are a pig to tune for a good idle and high end? Thinking slow airspeed at idle means it has to be really lean or it will bog and up high it has to be rich to accomodate a large amount of air. Just a thought and most likely wrong :P

Anyone have any more info on these engines? Would like to know how they are similar to or exactly like the Brat engines as well.

_____________________________

Success is the ability to go from one failure to another with no loss of enthusiasm.
Winston Churchill

(in reply to 1900Driver)
       Post #: 9

RE: N.S. BlueBird 0.25 ???????? - 5/3/2006 6:12:36 AM   
downunder



Posts: 3279
Joined: 10/10/2002
From: Adelaide, AUSTRALIA
Status: offline 		This is my 51 and I have to say I'm quite impressed by it. I certainly haven't had any carb problems although I've only run it on the test stand so far. It's a one flick starter at any throttle setting right up to full throttle even with the 9x6 wood I used to run it in with. I just measured the carb on mine and it's 7.8mm, my Rossi 45 is 7.85mm and the OS 40VF is 7.7mm.


Attachments
Click to see fullsize image.
Click for fullsize

(in reply to VeeAte)
       Post #: 10

RE: N.S. BlueBird 0.25 ???????? - 5/3/2006 8:11:41 AM   
VeeAte



Posts: 899
Joined: 3/11/2006
From: Geraldton, AUSTRALIA
Status: offline 		Sorry I should have said the hole the carb mounts into on the block is large. hehe

My MDS carb will fit inside it with heaps of room.

_____________________________

Success is the ability to go from one failure to another with no loss of enthusiasm.
Winston Churchill

(in reply to downunder)
       Post #: 11

RE: N.S. BlueBird 0.25 ???????? - 5/4/2006 12:37:04 AM   
Bone



Posts: 334
Joined: 3/15/2002
From: GraftonNSW, AUSTRALIA
Status: offline 		I have a 2nd hand Blue Bird 28 that I purchased via Ebay for $30. It has dual ball bearings & is of AAC construction. It runs really really well. I'm very impressed with its performance. It seems the original owner treated the engine very kindly.

I also have a new un-run Brat 25 - visually identical to the BlueBird 28 except on the LHS there is a very nice gold coloured plate with the "Brat" rather than the NS Bluebird logo - the Blue Bird carb fits straight on.

If anyone wants some pics of either engine, please let & me know & I will oblige.

(in reply to VeeAte)
       Post #: 12

RE: N.S. BlueBird 0.25 ???????? - 5/4/2006 3:43:11 AM   
downunder



Posts: 3279
Joined: 10/10/2002
From: Adelaide, AUSTRALIA
Status: offline
quote:

ORIGINAL: Bone
It has dual ball bearings & is of AAC construction.

That's interesting because my 51 is ABC. AAC is better than ABC and usually only high quality engines (like an Enya 60X ) use it.

(in reply to Bone)
       Post #: 13

Page:   [1]
All Forums >> Glow Engines, Gas Engines, Fuel & Mfg Support Forums >> Glow Engines >> N.S. BlueBird 0.25 ????????
Page: [1]





Jump to: