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-   -   Gp Extra With Bme 50 Prop Size? (https://www.rcuniverse.com/forum/arf-rtf-75/321422-gp-extra-bme-50-prop-size.html)

Gary Travis 10-18-2002 06:46 PM

Gp Extra With Bme 50 Prop Size?
 
I have a gp extra and have decided to use the bme 50 for power.
ordered the engine from chief, they said run a 22-8 for a prop. I beleive this will not have enough clearance, I asked them about a three blade mejlik at 18-10 or 19" has anyone run this engine in this plane with the 18' or 19'.
cheif recommends a 22-8 while on the bme site they say 20 inch.
HELP!!!!!

SMALLFLY- 10-18-2002 07:24 PM

Gp Extra With Bme 50 Prop Size?
 
I am putting a 22-8 zinger pro on my PW extra with the bme 50. Plenty of clearance

qspilot 10-18-2002 09:16 PM

Gp Extra With Bme 50 Prop Size?
 
BME says a 20" for the BME 44. They do not have any info for the 50 yet. I am using a 20 X 8 on my BME 44. I would call Keith at BME or try a 21 X 8. I am building the same plane for my 44. I think your clearance will be okay. I may be wrong though.

Chris

CAPtain232 10-18-2002 09:36 PM

Gp Extra With Bme 50 Prop Size?
 
The BME50 that SMALLFLY is refering to was mine at one point and if he says there is clearance, then go with the 22x8 the BME can definitely turn this prop. Another intersting idea would be a MENS S 19x10 3 blade. I ran one on that BME50 and it turned nearly 6600 rpm. THAT"S ALOT FOR A 3 BLADE!!!

Jeff

rcflyerjoe 10-18-2002 10:34 PM

Gp Extra With Bme 50 Prop Size?
 
Flew mine with a 22x8 Zinger on a BME50. There is plenty room.

nyrcpilot 10-19-2002 01:32 AM

Gp Extra With Bme 50 Prop Size?
 
Mine has a 22x8, tons of room. This is a big 27% plane with tall landing gear, I think a 24 " would still clear

AJF--2 10-19-2002 02:17 AM

Gp Extra With Bme 50 Prop Size?
 
Putting a Taurus 42 on mine--swinging a Zinger Pro 22/8 @ 7000 RPM---(can't wait)

DGrant 10-19-2002 04:41 AM

Gp Extra With Bme 50 Prop Size?
 
I'm running a 22x10 ZingerPro on my BME50. It's in a Midwest Extra. That's the prop that they spec for the engine in the manual that comes with it. 6600r's. Plenty of clearance for me.


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