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Old Jan 01, 2014, 02:22 AM
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It's only a rumour.....

....but Laser Engines, that well-known producer of exquisite four-stroke glows is going to produce a petrol engine.

Can hardly wait!!!
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Old Jan 02, 2014, 08:09 AM
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Chennai, Tamil Nadu, India
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If that is true, you my friend as harbinger of good news really deserve a pat on the back. .
Will check with them
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Old Jan 02, 2014, 10:52 AM
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It's probably top secret!
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Old Jan 03, 2014, 05:18 AM
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Monza check the thread on Laser engines at the other RC forum in the Universe. There is a reply from folks at Laser to this rumor
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Old Jan 03, 2014, 09:55 AM
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Quote:
Originally Posted by mchandrayan View Post
Monza check the thread on Laser engines at the other RC forum in the Universe. There is a reply from folks at Laser to this rumor
Well, what is it?
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Old Jan 03, 2014, 10:58 AM
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Seems like it's gonna be a "no-go" for a Laser Gasser mill...

Dear Monza Red & Fellow RC-Groupers:

The PIPE Here...sorry to "pop" one of the remaining "champagne bubbles" left over from someone else's Happy New Year celebrations, but the folks at Laser, from their posting at the Ar-Cee-You forum (specifically here) doesn't think that the existing Laser mills seem to be "quite ready" for being run with gasoline as yet, and I can readily understand WHY they said what they did there.

The Laser four-stroke mills were ALL designed to run as glow ignition, methanol-fueled mills, and have the air-cooling fins for that ignition AND fuel combo. Trying to run the stock Laser — WITH a spark ignition system replacing the glow ignition — WOULD be just fine for continued running with a methanol-based fuel (and have a serious chance at getting something like 15-20% BETTER fuel economy, as has been seen with other glow 4-stroke mills converted to sparkers), but with the air-cooling fins on existing Laser four-strokers designed to work with the rapid heat conduction of methanol fuels, the much-hotter running gasoline fuel format would simply overwhelm the stock Laser's ability to run at cooler temperatures.

One GOOD way to think about it is to realize how Saito Seisakusho, today best known for producing their extensive line of glow-ignition four-stroke mills, AND the newer FG-series gasoline burnin' 4-stroke spark ignition mills, first went about getting into internal combustion engines of ANY type for aeromodeling nearly 40 years ago...



...as above is a photo of the very first model aircraft engine design that the late Gen Saito ever whipped up for our hobby, his TWO-stroke G60 Schnürle-ported gasser mill. This type of mill, which I used to see an example of IN PERSON in 1979-80 back at my LHS on display (before that LHS went "all Great Planes/Hobbico" some years later) had VERY thin fins, and lots more of 'em, than any purpose-designed glow mill ever had...this WAS due to the hotter-burning gasoline it was meant to run on, and you'll see similar "numerous thin cooling fins" on original examples of all the two-stroke "Old Timer" mills: like the Ohlsson & Rice, Forster, Brown Junior, and other 1930s-40s spark ignition, free flight two-stroke gasser mill designs that existed before glow plugs arrived on the scene.

Now, I do NOT know if the Brits are forced to use the same E10 sort of motor fuel (with 10% ethanol content BY LAW) that Bay State (Massachusetts) residents like yours truly are REQUIRED to use for anything that's NOT a full-size aircraft, but the engine startup and running PROBLEMS that E10 fuel can cause for non-automotive purposes could have been responsible for causing the "conversion attempt" on the Laser mill in question to be a bit "barfy" in its operation, IF it was run on E10 motor fuel. The only resource available to myself to get around this sort of problem — and it's a solution I've been using for nearly two YEARS with complete success on our household lawn mower, snowblower AND emergency gasoline-engined generator — has been the StarTron E10 motor fuel additive product, which has worked so well for those three powered home/lawn implements' fueling needs since early in 2012, when I first tried it on the lawn mower.

For the present, be well advised that ANY glow-ignition four-stroke mill CAN be converted to spark ignition, but it WOULD be best to stick to runnin' it on glow fuel — there COULD be a 15% to 20% increase in fuel economy when switching a methanol-fueled glow plug four-stroker to spark ignition after all the adjustments to get it runnin' properly are completed for continued use with methanol-based glow fuel . But IF the mill doesn't have the multitude of THIN cooling fins (or otherwise, a much larger area of air-cooling fins) for runnin' on the hotter-burning gasoline, that hot running-characteristic IS simply going to be there with such a conversion.

Just hope this WAS of some help...

Happy 2014 & Yours Sincerely,

The PIPE....!!
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Old Jan 03, 2014, 11:31 PM
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Originally Posted by mchandrayan View Post
Monza check the thread on Laser engines at the other RC forum in the Universe. There is a reply from folks at Laser to this rumor
link please.
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Old Jan 04, 2014, 12:46 AM
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Originally Posted by firmware View Post
link please.
There you go. Post 339.

http://www.rcuniverse.com/forum/glow...-laser-14.html
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Old Jan 04, 2014, 02:30 PM
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ok, the conclsuion is they won't make any gas engine from the scratch just a glow to gas conversion if they find a good carb elsewhere.... LOL
so once the DLE 4 stroke engine is out they will have to close the door... c'mon DLE kill all these glow engine makers!!
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