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#1
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I have a 1984 Mooney M20K 231 for sale. 2483 TTSN, 1415 SFRM. Dual Garmin
430s. Please see http://www.madness.net/n57568 for specifications and tons of pictures, and email me directly with any questions. Thanks for looking! Vince |
#2
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("Vince" wrote)
I have a 1984 Mooney M20K 231 for sale. 2483 TTSN, 1415 SFRM. Dual Garmin 430s. Please see http://www.madness.net/n57568 for specifications and tons of pictures, and email me directly with any questions. Thanks for looking! How long have you owned it? What are some specs on a 1984 Mooney M20K? Speed in cruise, Fuel burn, Useful load, etc. Curious. Any more 'insider' info would be fun. Thanks. BTW, what you asking for it? :-) Montblack |
#3
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Vince,
How did you find the 3 bladed prop to perform. Many in the Mooney community seem to believe the 3 blade prop reduces cruise speed by about 5 knots. |
#4
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Montblack,
The reason its called a 231 is because it is suppose to cruise at 231mph (I believe that is wide open throttle though). -Robert Mooney owner |
#5
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On 15 Feb 2006 22:41:57 -0800, "Robert M. Gary"
wrote: Montblack, The reason its called a 231 is because it is suppose to cruise at 231mph (I believe that is wide open throttle though). -Robert Mooney owner The late model Mooneys (201, 231, 252) are definitely named by their top speed in mph. Here is a link to the performance section of the 231 POH. http://lists.aviating.com/mooney/per...erAltitude.pdf It appears that 231mph is achievable at approx 40" & 2700RPM, which the turbo'd engine can achieve at 16k through 20k pressure altitude. I doubt anyone would be willing to run the engine that hard as it is very close to 100% power. 75% @ 20k ~= 220mph 75% @ 24k ~= 229mph |
#6
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![]() "Nathan Young" wrote in message ... On 15 Feb 2006 22:41:57 -0800, "Robert M. Gary" wrote: Montblack, The reason its called a 231 is because it is suppose to cruise at 231mph (I believe that is wide open throttle though). -Robert Mooney owner The late model Mooneys (201, 231, 252) are definitely named by their top speed in mph. Here is a link to the performance section of the 231 POH. http://lists.aviating.com/mooney/per...erAltitude.pdf It appears that 231mph is achievable at approx 40" & 2700RPM, which the turbo'd engine can achieve at 16k through 20k pressure altitude. I doubt anyone would be willing to run the engine that hard as it is very close to 100% power. 75% @ 20k ~= 220mph 75% @ 24k ~= 229mph Let's see: % of HP = GPH * 14.9, so figure what the power level. It doesn't so much matter where the throttle is set (WOT works best), it's the RPM (seondary) and the fuel flow (mixture) which is primary. For example, in a 310HP engine, burning 14.5gph, you would be at 70% power. Matt B. |
#7
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Supposedly a myth.
Maybe. However, before I became a Mooney owner my bird was an Arrow with a 3 blade prop. In that configuration, it absolutely did slow it down quite a bit. I know that Top Gun Aviation (a Mooney Service Center) just purchased one of the "new designed" 3 blades for their shop Mooney. They want to determine what the cost in speed may be. The manufactor claims that the new designs aren't slower, but we'll see. -Robert |
#8
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![]() "Matt Barrow" wrote: How did you find the 3 bladed prop to perform. Many in the Mooney community seem to believe the 3 blade prop reduces cruise speed by about 5 knots. Supposedly a myth. Members of Cardinal Flyers have reported cruise speed losses after conversion to 3-blades. Some have reported ROC improvements and less noise. The consensus runs against the conversion being worth it. -- Dan C-172RG at BFM |
#9
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Is this correct?
"Matt Barrow" wrote in message ... Let's see: % of HP = GPH * 14.9, so figure what the power level. It doesn't so much matter where the throttle is set (WOT works best), it's the RPM (seondary) and the fuel flow (mixture) which is primary. For example, in a 310HP engine, burning 14.5gph, you would be at 70% power. Matt B. |
#10
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![]() "Dan Luke" wrote in message ... "Matt Barrow" wrote: How did you find the 3 bladed prop to perform. Many in the Mooney community seem to believe the 3 blade prop reduces cruise speed by about 5 knots. Supposedly a myth. Members of Cardinal Flyers have reported cruise speed losses after conversion to 3-blades. Some have reported ROC improvements and less noise. The consensus runs against the conversion being worth it. Not only (far) less noise, but significantly decreased vibration due to different airflow pulses against the airframe. It is also suggested that the miniscule speed loss (1-2%) can be adjusted out by running higher RPM's that a two blade prop would turn into noise and vibration. |
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