BME 110
11-03-2005 | 11:28 AM
#26
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From: Locust Grove,
GA
RE: BME 110
What propeller do you use for a engine that big at 200+ MPH
ORIGINAL: RCIGN1
Hey RTK, just kidding
We DID clock 208 mph with a Husky Challenger 8.8 twin in a Formula 1 Kelly...Worked great just before the whole front of the plane came off, firewall and all...
Hey RTK, just kidding
We DID clock 208 mph with a Husky Challenger 8.8 twin in a Formula 1 Kelly...Worked great just before the whole front of the plane came off, firewall and all...
11-19-2005 | 12:18 PM
#27
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From: gainesville, TX
RE: BME 110
Some prop comments:
I have a BME 50. I was getting:
MSC 22x8 6100 rpm
BME 22x8 6200 rpm
Mejzlik 22x8 7200rpm
The MSC is a big chunk of wood, but with wider blades it will pull harder at the same given RPM. I drove myself crazy trying to get more rpm out of my msc prop. I retimed the engine checked compression, mixed new gass, changed the plug, even ran it with the muffler off for one minute(200 rpm gain). Everything was perfect. I ordered a BME 22x8 and only gained 100 rpm. I was upset forums showed this engine making 7000 with 22x8. (i am at 600 feet). A friend was getting 7100 rpm with a bme 50 and a mejzlik 21 x 10. I finally found a Mejzlik 22x8 in stock and immediatly got 7200 to 7300. The engine is well broken in 20 gallons and I use the best tachometer TNC/Fromeco.
The moral of the story is that props make a big difference.
I saw a great improvment in the way the plane flew with a Mejzlik, I had a lot more momentum in my uplines and the speed of the uplines was more uniform from start to finish.
The plane was a 28% wildhare extra special.
A friend has a 28% wildhjare extra special with a DA 50 and a 23x8 nd my plane was faster straight and level and pulled harder than his, we tested this by flying in formation.
I am getting ready to order a BME 10 extreme for a 33% wildhare Extra 260(21.5 lbs):
I plan on using a 28 x 10 mejzlik for braek-in and flying, from my experience I believe a 28 x 10 mejzlik will have the same rpm's and a similar load to the recomended break in prop the BME 27 x 10.
I will use Penzoil Air Cooled 50:1 post break in.(i use this on my bme 50 and am very happy with it, besides after break in i can fly both planes on the same can of gas)
What oil and mixture do you recomend for break-in?
I have a BME 50. I was getting:
MSC 22x8 6100 rpm
BME 22x8 6200 rpm
Mejzlik 22x8 7200rpm
The MSC is a big chunk of wood, but with wider blades it will pull harder at the same given RPM. I drove myself crazy trying to get more rpm out of my msc prop. I retimed the engine checked compression, mixed new gass, changed the plug, even ran it with the muffler off for one minute(200 rpm gain). Everything was perfect. I ordered a BME 22x8 and only gained 100 rpm. I was upset forums showed this engine making 7000 with 22x8. (i am at 600 feet). A friend was getting 7100 rpm with a bme 50 and a mejzlik 21 x 10. I finally found a Mejzlik 22x8 in stock and immediatly got 7200 to 7300. The engine is well broken in 20 gallons and I use the best tachometer TNC/Fromeco.
The moral of the story is that props make a big difference.
I saw a great improvment in the way the plane flew with a Mejzlik, I had a lot more momentum in my uplines and the speed of the uplines was more uniform from start to finish.
The plane was a 28% wildhare extra special.
A friend has a 28% wildhjare extra special with a DA 50 and a 23x8 nd my plane was faster straight and level and pulled harder than his, we tested this by flying in formation.
I am getting ready to order a BME 10 extreme for a 33% wildhare Extra 260(21.5 lbs):
I plan on using a 28 x 10 mejzlik for braek-in and flying, from my experience I believe a 28 x 10 mejzlik will have the same rpm's and a similar load to the recomended break in prop the BME 27 x 10.
I will use Penzoil Air Cooled 50:1 post break in.(i use this on my bme 50 and am very happy with it, besides after break in i can fly both planes on the same can of gas)
What oil and mixture do you recomend for break-in?
11-19-2005 | 01:17 PM
#29
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From: Left Coast ,
CA
RE: BME 110
I'm always the odd ball out I run synthetic from the start, I am to lazy to mix different batches of fuel.
I do not recommend this though, always follow manufacturers recommendations or the warranty might be put in jeopardy.
I run synthetic from the start, I am to lazy to mix different batches of fuel. I do not recommend this though, always follow manufacturers recommendations or the warranty might be put in jeopardy.
11-19-2005 | 03:09 PM
#30
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RE: BME 110
Don't remember the prop, something around 22x22..it was carbon fiber...The plane was at a race in Gainesville, Texas..The Kelly was built for a Zenoah 445 twin...There was a square cornered hatch on top of the fuse for access to the fuel and receiver switch...We think a crack started at the corner of the hatch...We have learned a lot since then...
No more square corners...
No more square corners...
