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General control line discussion => Open Forum => Topic started by: Ty Marcucci on March 28, 2015, 04:25:45 PM

Title: What is this engine.It is a Diesel .15, but who made it?
Post by: Ty Marcucci on March 28, 2015, 04:25:45 PM

Photo

Title: Re: What is this engine.It is a Diesel .15, but who made it?
Post by: kenneth cook on March 28, 2015, 04:35:20 PM

              It looks like a ETA diesel. I'm not a diesel aficionado however. Ken

Title: Re: What is this engine.It is a Diesel .15, but who made it?
Post by: dennis lipsett on March 28, 2015, 04:39:56 PM

Quote from: kenneth cook on March 28, 2015, 04:35:20 PM

              It looks like a ETA diesel. I'm not a diesel aficionado however. Ken

Ken is right. It is an ETA, 60's vintage and they were nice runners

Title: Re: What is this engine.It is a Diesel .15, but who made it?
Post by: qaz049 on March 28, 2015, 05:07:59 PM

Yes it's an ETA 15 diesel, albeit with non standard venturi (the banjo is missingas well) and spinner nut assembly. Still should bring a good price on ebay if the rest of it is in good condition. Mostly good motors, and were used successfully in FAI Team Race before the Super Tigre 15D came along.

Made by the great Ken Bedford in the UK. "ETA" is a alphabetical Greek symbol used in Physics, the symbol is embossed on the front of the crankcase.

Here's what it originally looked like

(http://www.modelenginenews.org/prod/images/berts_eta15.jpg)

Title: Re: What is this engine.It is a Diesel .15, but who made it?
Post by: George Hostler on March 28, 2015, 10:19:34 PM

Quote from: qaz049 on March 28, 2015, 05:07:59 PM

Yes it's an ETA 15 diesel [...]Made by the great Ken Bedford in the UK. "ETA" is a alphabetical Greek symbol used in Physics, the symbol is embossed on the front of the crankcase.

It is interesting that Ken would name it after Greek symbology. I was curious as to what may have prompted him to call it an "ETA".

http://en.wikipedia.org/wiki/Eta (http://en.wikipedia.org/wiki/Eta)

Closest I could find that might possibly be a reason is ETA is used for example for one ideal engine cycle, Carnot Cycle efficiency.

http://en.wikipedia.org/wiki/Carnot_heat_engine (http://en.wikipedia.org/wiki/Carnot_heat_engine)

It's been a long time since I studied thermodynamics and now it is all Greek to me.  ;D

Title: Re: What is this engine.It is a Diesel .15, but who made it?
Post by: Motorman on March 28, 2015, 10:41:38 PM

This brings up good memories of my friend Don Myers who campaigned an ETA in his FAI team racer the Quasar. Beautiful silver model with elliptical wing. Wonderful time for team race before big money and high speeds ruined the event.


MM

Title: Re: What is this engine.It is a Diesel .15, but who made it?
Post by: pipemakermike on March 29, 2015, 02:39:17 AM

Ken Bedford Died this year

Title: Re: What is this engine.It is a Diesel .15, but who made it?
Post by: Chris Wilson on March 29, 2015, 03:54:32 AM

Quote from: qaz049 on March 28, 2015, 05:07:59 PM

Made by the great Ken Bedford in the UK. "ETA" is a alphabetical Greek symbol used in Physics, the symbol is embossed on the front of the crankcase.

Never knew that Ray!

Confirmed on this site -

http://www.pbase.com/johnlich/eta

"In a circle: "ETA Instruments Ltd" in the middle the greek letter "eta" underlined
" Trade Mark" in the lower part "Watford England"

Great ETA pics and technical engine drawings there too.

Cheers.

Title: Re: What is this engine.It is a Diesel .15, but who made it?
Post by: qaz049 on March 29, 2015, 04:46:45 AM

Quote from: Chris Wilson on March 29, 2015, 03:54:32 AM

Never knew that Ray!

Confirmed on this site -

http://www.pbase.com/johnlich/eta

"In a circle: "ETA Instruments Ltd" in the middle the greek letter "eta" underlined
" Trade Mark" in the lower part "Watford England"

Great ETA pics and technical engine drawings there too.

Cheers.

Chris,

that's a good link. I have a few ETA .29's from MK 3's to MK 6c's. Two are in Vintage  B Class Team Racers. Our US friends may be interested to know that the glow .29's started out as McCoy .29 inspired near clones but eventually surpassed the original.  Stopped production about 1968, although they were available for a few years after that.

See: http://www.modelenginenews.org/cardfile/eta29.html