I just wanted to let everyone know that we now have the BME/Supertigre engines available. Please check our web sight www.bmeengine.com for pictures and specs. These .90 gas engines are simply amazing and fill the need for a small performance gas engine.

Keith, I looked on the site and still didn't see the engines.

Sorry, Tom is updating the web sight. Please check back they should be there real soon.


Keith
BME

wow that is cool i hope to see one at a fly in for 06

I'd like to get one of those so I don't have to fly a huge gasser all the time. I wonder what would be a good fit for one of these?

On another note, whatever happend to the BME 55 Extreme???

BME,

I like it. Check your spec table at the bottom of the page. I think it is mixed up with the 95cc twin.

Would be a good fit for my Balsa USA Bipe.

Bedford

How do these glow to gas engines get rid of the dry, higher heat generated by gasoline.
There is no cooling available from the hot, wet, slimy exhaust like a glow engine.
Pictures are decieving.
Are these engines special, with more fin area, or just a carb and ignition change?

Having used gas engines with about the same or less cooling fin area with great success I'm not too worried about cooling. I am interested in what size plane these are designed for. From my limited knowledge, gas engines size for size do not produce the same power that glow engines produce. Is this engine intended for a .60 size plane?

Thanks guys. There is more than enough cooling fin area to keep these engines cool. They dont run hot and they dont die. With a pump style carb the chance of getting a lean run is not as great. All I can tell you is to try one or wait for the customers to post there results on RCU. I guaranty you will love it. They work great on any .60 size plane like a BME Cap maniac, Aeroworks .46-.60 Edge, stick style airplanes to warbirds. Its insane power on most .60 sixe planes with no weight penalty. The 55cc will be ready for sale in April.


Keith
BME

Please see the .90 gas engine thread on here for more details. These engines have more power as the gas version than the glow.

Keith
BME

Thanks for the quick reply Keith [8D]

I'm going to hold off untill I see actual tach numbers. I know are giving me 13x6 @ 14000 or so RPM but that over revs the engine. I friend of mine has a fully broken in ST G90 and he gets with a 14x8 , 11200 RPM on 15% Omega Fuel. If this gasoline engine is indeed as strong as you say, by 20%, I would expect it to hit 12000 RPM on a 14x8.

Also... This price is really high for just a 90. I know is gasoline and all but the glow counterpart is 1/3 the cost of the gas... The MVVS 25GT cost 20 dollars more and is a proven engine.

Keith,
You are now making my dream of owning a twin a lot more realistic.
I will have to see about planes of the 1.20ci size.

These are the listed specifications

Cylinders: Twin
Capacity:95cc / 5.8ci
Engine Weight (as pictured):26 ounces
Carburetor Zama Pump
Gas Mix 50:1
H.P. 2.7@14,000 rpm

I think the cylinders and capacity needs to be updated

One thing Keith did not mention is during the testing of this motor
we flew for 30 min. at full throttle on 10 oz of gas.
That will be the most savings gas over glow fuel

The web sight is being fixed now. Disco I dont blame you for waiting to see the numbers. If you are happy with your glow engines you should continue to use them. We are just offering an option to what was once considered a glow engine size only. We feel the price is very fair for what you get. If you count the cost of glow fuel along with glow plugs, paper towels, windex ect. The engine will pay for itself will fuel cost savings alone. Then look at the longevity of a glow engine verses gas and costs for replacing rusty bearings. Most .90's run about 15 minutes on 16 ounces of glow fuel at say an average of 16.00 per gallon plus the trip to the hobby store to buy it. That equals about eight flights per gallon or 2.00 per flight. A Supertigre.90 on gas runs at full power for up to 30 minutes on ten ounces of fuel that can be bought at any gas station at say 2.50 per gallon. That equals 25.6 flights per gallon or .09 cents per flight with far less chance of a deadstick and crashing your plane. Aerobatic pilots really get to enjoy the reliability of gas over glow especially when flying low to the ground or 3d.

Thank you
Keith Baker
BME

Not to mention that if you are an all gas user, this reduces your field support needs. I fly mostly larger gas engine planes but have the occasional smaller plane with a glow engine that I must then have all this additional field equipment for. I don't dislike glow but do like the option I now have to use gas on smaller planes. I plan to try one of these in the near future.

Sorry guys, the web site problems are my fault, not Keith's. I was working on it at Midnight last night and was having some server gremlins that took my focus off of the content. Somehow I missed updating those few lines in the specs area (copy & paste booboo) and will correct them when I get back in my office in a few hours. My apologies.

Thanks,

Tom

So where is it written that 14.000 over revs a glow engine ? Ever look at what the race engines are turning ? Hows 24,000+ rpm sound Some of the smaller ones are turning 30.000...
Like Duke Fox advertised when he made his 1.2 glow twin, let it run
The limiting factor is supersonic tip speed...

RCIGN,
an airplane engine is designed to run at lower rpm with more torque where small race engines in rc buggies run at very rpm with little torque. I can't belive you even posted such a stupid comment really.

Shame...[&o]

Hey, I make lots of stupid statements...My statement was based on .40 size formula 1 glow engines turning 24,000 rpm plus, with 8.5 inch carbon props..And some of the .90 and over ducted fan engines..
When we started flying quickee planes a good K&B .40 would turn ONLY about 15,000 rpm.
Check out Dub Jett's website...The .90L airplane engine turns a 12-6 at 15,000 rpm..Guaranteed....

Ok, the STG90 is a sport engine, not some ferrari.
14000 rpm is way to high for it, you'll start messing it up really quick. IN fact the highest I would go on that engine is 12000. I have had 5 ST G90's; best engines for the price (although the carb could be a little better...). I wouldn't not want to be running a 13x6 at 14,000 it would become very ineffcient loud and would be giving the engine hell. Look at tach readings section on RCU, most people run the engine in 10,000-11,000 range; thats where it makes the most torque so you should have it propped for that range.

MOST people don,t run their GT80s at 11,500 rpm either, but WE do...19-18 prop, 188 mph radar clocked...

Hey Todd, what about this engine on one of your dad's Perfections?

No sweat.
Was not being mean, just point out the content.
Wish I was one of those test pilots!