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Post  daviddiag Sat Jun 02, 2012 11:47 am

A while back, I saw on this forum, a picture of a giant Baby Bee that some one had made. I have poked around today to find it and cannot.
Where can I find pictures and details about this engine? Is it Real?
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Post  Surfer_kris Sat Jun 02, 2012 12:28 pm

The giant Babe Bee is real; http://www.reginaldluycx.be/collectie3.html

There is also a fake image of a large TD that was posted on RCU some time ago...

Giant Baby Bee A4618626-54-Foto%27s%20%2C%20Reggy%20%282%29%20030
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Post  Ivanhoe Sat Jun 02, 2012 1:05 pm

daviddiag wrote: A while back, I saw on this forum, a picture of a giant Baby Bee that some one had made. I have poked around today to find it and cannot.
Where can I find pictures and details about this engine? Is it Real?

Yes, these were posted here a while ago (by me!) The Babe Bee is real, and reputed to run, the giant TD photo is a fake, touch of the Photoshops!
The photos and discussion thread are on here somewhere, but I certainly can't find them at the moment.

Wilf
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Post  Admin Sat Jun 02, 2012 2:05 pm

That is one of the problems with this forum. Don't use the "inside" search feature, set it to "Google". Also there has been plans to split the discussions up a little more by either engine size or so on.

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Post  Surfer_kris Sat Jun 02, 2012 3:03 pm

Ivanhoe wrote:

Yes, these were posted here a while ago (by me!) The Babe Bee is real, and reputed to run, the giant TD photo is a fake, touch of the Photoshops!
The photos and discussion thread are on here somewhere, but I certainly can't find them at the moment.

Wilf

It comes from RCU in 2010 if I remeber correctly, and then pops up every know and then.... http://www.rcuniverse.com/forum/fb.asp?m=10516961

It was published/highlightet as an April fools joke, and there are more details and images here; Info in German


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Post  daviddiag Sat Jun 02, 2012 4:37 pm

Looking at the reed valve, I have a hard time with it being flexible enough to seal. Oil viscosity and film strength do not scale up!
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Post  Surfer_kris Sat Jun 02, 2012 4:41 pm

You have reeds in full scale 2 stroke engines (motorbikes), it is just a matter of choosing the right material and dimensions.
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Post  microflitedude Sat Jun 02, 2012 4:55 pm

Surfer_kris wrote:You have reeds in full scale 2 stroke engines (motorbikes), it is just a matter of choosing the right material and dimensions.

Yes, there are two reeds in my Briggs 5HP four stroker.
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Post  jsesere Sat Jun 02, 2012 6:47 pm

Not a Bee, but.
Giant Baby Bee Big_te10
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Post  Surfer_kris Sun Jun 03, 2012 2:14 am

That's the fake one from Photo Shop that I talked about above...
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Post  mitchg95 Thu Aug 23, 2012 10:14 pm

i would love to find out if he used a ball and socket or a wristpin to keep the piston on the connecting rod?
it looks to be about 3 times the size of a normal baby bee, wonder what the displacement is?
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Post  mitchg95 Thu Aug 23, 2012 10:23 pm

i just checked his site, it is 170mm high were as a normal bee is 59mm

so..... 170/59=2.88, so this be is 2.88 times the normal size
gosh it would be fun to hand start that, wonder what size prop it uses?
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Post  coxaddicted Fri Aug 24, 2012 8:17 am

Really cool. He wrote that the engine is diabolic loud without muffler Very Happy .

He wrote also that everything is exactly the same as in a real cox (apart from the glow plug). Due to this, the engine is about 40% heavier as necsassary, so it was not planned to use it in a flyer. Sadly he sold it to a modeler and journalist to belgium.

The Builder lives in Bochum, just a stone throw away from me Affraid or WOW! .
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Post  GermanBeez Fri Aug 24, 2012 8:22 am

coxaddicted wrote:Really cool. He wrote that the engine is diabolic loud without muffler Very Happy .

He wrote also that everything is exactly the same as in a real cox (apart from the glow plug). Due to this, the engine is about 40% heavier as necsassary, so it was not planned to use it in a flyer. Sadly he sold it to a modeler and journalist to belgium.

The Builder lives in Bochum, just a stone throw away from me Affraid or WOW! .

It can probably power a small ultralight plane Smile
But I can understand why he sold it, there's just NO place to run something like this here without getting arrested for disturbance of peace Very Happy
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Post  coxaddicted Fri Aug 24, 2012 8:54 am

That is an argument Very Happy
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Post  ahrma_581 Fri Aug 24, 2012 4:19 pm

mitchg95 wrote:i just checked his site, it is 170mm high were as a normal bee is 59mm

so..... 170/59=2.88, so this be is 2.88 times the normal size
gosh it would be fun to hand start that, wonder what size prop it uses?

That is along one dimension, so displacement (volume) would be the cube of that: i.e., about 24 times using your measurement. So it would be about a 1.17 ci engine.

These days, per RCU recommendations, about your average 'beginner' r/c motor..... confused
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Post  mitchg95 Fri Aug 24, 2012 5:34 pm

ahrma_581 wrote:
mitchg95 wrote:i just checked his site, it is 170mm high were as a normal bee is 59mm

so..... 170/59=2.88, so this be is 2.88 times the normal size
gosh it would be fun to hand start that, wonder what size prop it uses?

That is along one dimension, so displacement (volume) would be the cube of that: i.e., about 24 times using your measurement. So it would be about a 1.17 ci engine.

These days, per RCU recommendations, about your average 'beginner' r/c motor..... confused


so 1.17ci? holy cow Smile
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Post  lousyflyer Fri Aug 24, 2012 5:57 pm

I would love to hear it run. Very Happy
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Post  mitchg95 Fri Aug 24, 2012 6:32 pm

lousyflyer wrote:I would love to hear it run. Very Happy

+1
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Post  WingingIt74 Wed Nov 06, 2013 12:07 pm

http://www.microsofttranslator.com/bv.aspx?from=&to=en&a=http%3A%2F%2Fwww.rc-network.de%2Fforum%2Fshowthread.php%2F200128-Coxmotoren
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Post  Jason_WI Wed Nov 06, 2013 6:01 pm

Reginald on RC Groups might own that engine. He has a ton of antique and rare engines. I got a few from him this past summer when he was thinning his collection. That is where I got the spark ignition sprotsman from.

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