Today's Message Index:
----------------------
1. 04:44 AM - Re: Re: Engine RPM and propeller speed (A. Dennis Savarese)
2. 06:28 AM - Re: Re: Engine RPM and propeller speed (George Coy)
3. 06:55 AM - Re: Re: Engine RPM and propeller speed (A. Dennis Savarese)
4. 01:22 PM - Re: Oshkosh and MTW (James Goolsby)
5. 07:07 PM - M-14 for sale (keithmckinley)
Message 1
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| Subject: | Re: Engine RPM and propeller speed |
Totally agree with you Walt.
Dennis
A. Dennis Savarese
334-285-6263
334-546-8182 (mobile)
www.yak-52.com
Skype - Yakguy1
On 8/8/2012 10:19 PM, Walter Lannon wrote:
>
> Hi Dennis;
>
> Thanks for the info.
> I agree, 2900 RPM (99%) period is a good number. I would not set up
> the governor for the max. allowable of 2950 but would regard that as
> an accidental overspeed limit.
>
> Walt
>
> -----Original Message----- From: A. Dennis Savarese
> Sent: Wednesday, August 08, 2012 10:00 AM
> To: yak-list@matronics.com
> Subject: Re: Yak-List: Re: Engine RPM and propeller speed
>
> <dsavarese0812@bellsouth.net>
>
> Hi Walt,
>> From the M14P maintenance manual, here are the specs pertinent to this
> conversation.
>
> Take-off rating is 2900 RPM +-1 (99%). "Given in brackets are nominal
> values of the crankshaft speed of rotation in percent against the unified
> tachometer (99.4 % corresponds to 2900 r/min of the crankshaft)".
>
> I have no idea where they come up with 99.4% corresponds to 2900 r/min.
> There are numerous misprints in the manual caused by translation. I'd
> stick with 99%=2900 period.
>
>
> 1.2. SPECIFICATIONS
> 1.2.1. Engine
> Designation................................................................................
>
> M-14P
> Cooling system
> ..........................................................................
>
> Air-type
> Engine starting system
> .............................................................. Air-type
> Engine continuous operation time:
> At take-off rating
> .................................................. Up to 5 min
> At maximum permissible speed, of rotation .......... ...................
> Up to 1 min
> At other ratings ..................................
> ...................................... Not limited
> Iverted engine operation:
> Ratings ...........................................
> ..........................................Nominal
> Continuous operation time .........................
> .............................. Up to 2 min
> Total time within service life
> ...................................................... Up to 18 %
> _/Maximum permissible speed of rotation ...............
> ................... 2950 (101 %) r/min/_
> Acceleration (pickup) from 760 r/min (idle) to take-off
> rating on stationary airplane ..............
> ....................................... Up to 3 s
> Maximum permissible crankshaft speed drop when
> changing over to one-magneto operation at nominal
> rating II and cruise rating I (low-pitch airscrew) ..
> ...................... 85 r/min (3 %)
> Number and arrangement of cylinders .................
> .................... 9, radial, single-row
> Cylinder numbering ..................................
> ................................ Counter clockwise if viewed from
> rear cover side, top cylinder is Ho. 1
> Cylinder bore
> .............................................................................
>
> 105 mm
> Piston stroke:
> Cylinder No. 4 ....................................
> ....................................... 130 mm
> Cylinders Nos 3 and 5
> ............................................................... 130.15 mm
> Cylinders Nos 2 and 6 .............................
> ................................. 130.23 mm
> Cylinders Nos 8 and 9 .............................
> ................................. 130.39 mm
> Cylinders Nos 1 and 7 .............................
> ................................. 131.25 mm
> Total displacement ..................................
> ................................. 10.161 1
> Compression ratio ...................................
> ................................. 6.30.1
> Direction of rotation of crankshaft and airscrew shaft ...............LH
> Engine dry mass ..................................... 214 kg+2%
> NOTE: Engine dry mass does not include mass of the generator,
> compressor, fine
> filter with pipelines, engine frame ring, exhaust manifold parts,
> tachometer generator.
>
> Dennis
>
> A. Dennis Savarese
> 334-285-6263
> 334-546-8182 (mobile)
> www.yak-52.com
> Skype - Yakguy1
>
> On 8/8/2012 11:04 AM, Walter Lannon wrote:
>>
>> Hi Dennis;
>>
>> I probably am wrong but I seem to recall from the manual that the
>> operating T.O. RPM limit for the M14P was 2901 and the overspeed
>> limit was 2950.
>> It appears that "N642K" may still not understand that the tachometer
>> has nothing to do with the propellor.
>>
>> Cheers;
>> Walt
>>
>> -----Original Message----- From: A. Dennis Savarese
>> Sent: Tuesday, August 07, 2012 12:54 PM
>> To: yak-list@matronics.com
>> Subject: Re: Yak-List: Re: Engine RPM and propeller speed
>>
>> <dsavarese0812@bellsouth.net>
>>
>> The V530 limits are your engine RPM limits, which according to the
>> manual is 2950 RPM. I prefer to use 2900 though.
>>
>> A. Dennis Savarese
>> 334-285-6263
>> 334-546-8182 (mobile)
>> www.yak-52.com
>> Skype - Yakguy1
>>
>> On 8/7/2012 2:42 PM, N642K wrote:
>>>
>>> Thanks Dennis. Once again you come thru with the answer. I guess I
>>> need to look up the limits of the V530 and double check what is
>>> already programmed on my Horizon tach.
>>>
>>>
>>>
>>>
>>> Read this topic online here:
>>>
>>> http://forums.matronics.com/viewtopic.php?p=380323#380323
>>>
>>>
>>>
>>>
>>>
>>>
>>>
>>>
>>>
>>>
>>>
>>
>>
>>
>>
>>
>>
>>
>>
>>
>>
>
>
Message 2
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| Subject: | Re: Engine RPM and propeller speed |
And then there was the guy with a homebuilt (name and type to remain
anonymous) who used a prop tach to set up his tachometer. Had the prop
turning at 2950 RPM . About 60 hrs later he was informed of his mistake. As
far as I know now 9 years later and over 500 hrs it is still running
fine...
-----Original Message-----
From: owner-yak-list-server@matronics.com
[mailto:owner-yak-list-server@matronics.com] On Behalf Of A. Dennis Savarese
Sent: Thursday, August 09, 2012 7:42 AM
Subject: Re: Yak-List: Re: Engine RPM and propeller speed
--> <dsavarese0812@bellsouth.net>
Totally agree with you Walt.
Dennis
A. Dennis Savarese
334-285-6263
334-546-8182 (mobile)
www.yak-52.com
Skype - Yakguy1
On 8/8/2012 10:19 PM, Walter Lannon wrote:
>
> Hi Dennis;
>
> Thanks for the info.
> I agree, 2900 RPM (99%) period is a good number. I would not set up
> the governor for the max. allowable of 2950 but would regard that as
> an accidental overspeed limit.
>
> Walt
>
> -----Original Message----- From: A. Dennis Savarese
> Sent: Wednesday, August 08, 2012 10:00 AM
> To: yak-list@matronics.com
> Subject: Re: Yak-List: Re: Engine RPM and propeller speed
>
> <dsavarese0812@bellsouth.net>
>
> Hi Walt,
>> From the M14P maintenance manual, here are the specs pertinent to
>> this
> conversation.
>
> Take-off rating is 2900 RPM +-1 (99%). "Given in brackets are nominal
> values of the crankshaft speed of rotation in percent against the
> unified tachometer (99.4 % corresponds to 2900 r/min of the crankshaft)".
>
> I have no idea where they come up with 99.4% corresponds to 2900 r/min.
> There are numerous misprints in the manual caused by translation. I'd
> stick with 99%=2900 period.
>
>
> 1.2. SPECIFICATIONS
> 1.2.1. Engine
>
Designation.................................................................
...............
>
> M-14P
> Cooling system
> ..........................................................................
>
> Air-type
> Engine starting system
> ..............................................................
> Air-type Engine continuous operation time:
> At take-off rating
> .................................................. Up to 5 min
> At maximum permissible speed, of rotation .......... ...................
> Up to 1 min
> At other ratings ..................................
> ...................................... Not limited Iverted engine
> operation:
> Ratings ...........................................
> ..........................................Nominal
> Continuous operation time .........................
> .............................. Up to 2 min Total time within service
> life ...................................................... Up to 18 %
> _/Maximum permissible speed of rotation ...............
> ................... 2950 (101 %) r/min/_ Acceleration (pickup) from
> 760 r/min (idle) to take-off rating on stationary airplane
> ..............
> ....................................... Up to 3 s Maximum permissible
> crankshaft speed drop when changing over to one-magneto operation at
> nominal rating II and cruise rating I (low-pitch airscrew) ..
> ...................... 85 r/min (3 %)
> Number and arrangement of cylinders .................
> .................... 9, radial, single-row Cylinder numbering
> ..................................
> ................................ Counter clockwise if viewed from rear
> cover side, top cylinder is Ho. 1 Cylinder bore
>
............................................................................
.
>
> 105 mm
> Piston stroke:
> Cylinder No. 4 ....................................
> ....................................... 130 mm Cylinders Nos 3 and 5
> ............................................................... 130.15
> mm Cylinders Nos 2 and 6 .............................
> ................................. 130.23 mm Cylinders Nos 8 and 9
> .............................
> ................................. 130.39 mm Cylinders Nos 1 and 7
> .............................
> ................................. 131.25 mm Total displacement
> ..................................
> ................................. 10.161 1 Compression ratio
> ...................................
> ................................. 6.30.1 Direction of rotation of
> crankshaft and airscrew shaft ...............LH Engine dry mass
> ..................................... 214 kg+2%
> NOTE: Engine dry mass does not include mass of the generator,
> compressor, fine filter with pipelines, engine frame ring, exhaust
> manifold parts, tachometer generator.
>
> Dennis
>
> A. Dennis Savarese
> 334-285-6263
> 334-546-8182 (mobile)
> www.yak-52.com
> Skype - Yakguy1
>
> On 8/8/2012 11:04 AM, Walter Lannon wrote:
>>
>> Hi Dennis;
>>
>> I probably am wrong but I seem to recall from the manual that the
>> operating T.O. RPM limit for the M14P was 2901 and the overspeed
>> limit was 2950.
>> It appears that "N642K" may still not understand that the tachometer
>> has nothing to do with the propellor.
>>
>> Cheers;
>> Walt
>>
>> -----Original Message----- From: A. Dennis Savarese
>> Sent: Tuesday, August 07, 2012 12:54 PM
>> To: yak-list@matronics.com
>> Subject: Re: Yak-List: Re: Engine RPM and propeller speed
>>
>> <dsavarese0812@bellsouth.net>
>>
>> The V530 limits are your engine RPM limits, which according to the
>> manual is 2950 RPM. I prefer to use 2900 though.
>>
>> A. Dennis Savarese
>> 334-285-6263
>> 334-546-8182 (mobile)
>> www.yak-52.com
>> Skype - Yakguy1
>>
>> On 8/7/2012 2:42 PM, N642K wrote:
>>>
>>> Thanks Dennis. Once again you come thru with the answer. I guess I
>>> need to look up the limits of the V530 and double check what is
>>> already programmed on my Horizon tach.
>>>
>>>
>>>
>>>
>>> Read this topic online here:
>>>
>>> http://forums.matronics.com/viewtopic.php?p=380323#380323
>>>
>>>
>>>
>>>
>>>
>>>
>>>
>>>
>>>
>>>
>>>
>>
>>
>>
>>
>>
>>
>>
>>
>>
>>
>
>
Message 3
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| Subject: | Re: Engine RPM and propeller speed |
Wow!
A. Dennis Savarese
334-285-6263
334-546-8182 (mobile)
www.yak-52.com
Skype - Yakguy1
On 8/9/2012 8:26 AM, George Coy wrote:
>
> And then there was the guy with a homebuilt (name and type to remain
> anonymous) who used a prop tach to set up his tachometer. Had the prop
> turning at 2950 RPM . About 60 hrs later he was informed of his mistake. As
> far as I know now 9 years later and over 500 hrs it is still running
> fine...
>
> -----Original Message-----
> From: owner-yak-list-server@matronics.com
> [mailto:owner-yak-list-server@matronics.com] On Behalf Of A. Dennis Savarese
> Sent: Thursday, August 09, 2012 7:42 AM
> To: yak-list@matronics.com
> Subject: Re: Yak-List: Re: Engine RPM and propeller speed
>
> --> <dsavarese0812@bellsouth.net>
>
> Totally agree with you Walt.
> Dennis
>
> A. Dennis Savarese
> 334-285-6263
> 334-546-8182 (mobile)
> www.yak-52.com
> Skype - Yakguy1
>
> On 8/8/2012 10:19 PM, Walter Lannon wrote:
>>
>> Hi Dennis;
>>
>> Thanks for the info.
>> I agree, 2900 RPM (99%) period is a good number. I would not set up
>> the governor for the max. allowable of 2950 but would regard that as
>> an accidental overspeed limit.
>>
>> Walt
>>
>> -----Original Message----- From: A. Dennis Savarese
>> Sent: Wednesday, August 08, 2012 10:00 AM
>> To: yak-list@matronics.com
>> Subject: Re: Yak-List: Re: Engine RPM and propeller speed
>>
>> <dsavarese0812@bellsouth.net>
>>
>> Hi Walt,
>>> From the M14P maintenance manual, here are the specs pertinent to
>>> this
>> conversation.
>>
>> Take-off rating is 2900 RPM +-1 (99%). "Given in brackets are nominal
>> values of the crankshaft speed of rotation in percent against the
>> unified tachometer (99.4 % corresponds to 2900 r/min of the crankshaft)".
>>
>> I have no idea where they come up with 99.4% corresponds to 2900 r/min.
>> There are numerous misprints in the manual caused by translation. I'd
>> stick with 99%=2900 period.
>>
>>
>> 1.2. SPECIFICATIONS
>> 1.2.1. Engine
>>
> Designation.................................................................
> ...............
>> M-14P
>> Cooling system
>> ..........................................................................
>> Air-type
>> Engine starting system
>> ..............................................................
>> Air-type Engine continuous operation time:
>> At take-off rating
>> .................................................. Up to 5 min
>> At maximum permissible speed, of rotation .......... ...................
>> Up to 1 min
>> At other ratings ..................................
>> ...................................... Not limited Iverted engine
>> operation:
>> Ratings ...........................................
>> ..........................................Nominal
>> Continuous operation time .........................
>> .............................. Up to 2 min Total time within service
>> life ...................................................... Up to 18 %
>> _/Maximum permissible speed of rotation ...............
>> ................... 2950 (101 %) r/min/_ Acceleration (pickup) from
>> 760 r/min (idle) to take-off rating on stationary airplane
>> ..............
>> ....................................... Up to 3 s Maximum permissible
>> crankshaft speed drop when changing over to one-magneto operation at
>> nominal rating II and cruise rating I (low-pitch airscrew) ..
>> ...................... 85 r/min (3 %)
>> Number and arrangement of cylinders .................
>> .................... 9, radial, single-row Cylinder numbering
>> ..................................
>> ................................ Counter clockwise if viewed from rear
>> cover side, top cylinder is Ho. 1 Cylinder bore
>>
> ............................................................................
> .
>> 105 mm
>> Piston stroke:
>> Cylinder No. 4 ....................................
>> ....................................... 130 mm Cylinders Nos 3 and 5
>> ............................................................... 130.15
>> mm Cylinders Nos 2 and 6 .............................
>> ................................. 130.23 mm Cylinders Nos 8 and 9
>> .............................
>> ................................. 130.39 mm Cylinders Nos 1 and 7
>> .............................
>> ................................. 131.25 mm Total displacement
>> ..................................
>> ................................. 10.161 1 Compression ratio
>> ...................................
>> ................................. 6.30.1 Direction of rotation of
>> crankshaft and airscrew shaft ...............LH Engine dry mass
>> ..................................... 214 kg+2%
>> NOTE: Engine dry mass does not include mass of the generator,
>> compressor, fine filter with pipelines, engine frame ring, exhaust
>> manifold parts, tachometer generator.
>>
>> Dennis
>>
>> A. Dennis Savarese
>> 334-285-6263
>> 334-546-8182 (mobile)
>> www.yak-52.com
>> Skype - Yakguy1
>>
>> On 8/8/2012 11:04 AM, Walter Lannon wrote:
>>>
>>> Hi Dennis;
>>>
>>> I probably am wrong but I seem to recall from the manual that the
>>> operating T.O. RPM limit for the M14P was 2901 and the overspeed
>>> limit was 2950.
>>> It appears that "N642K" may still not understand that the tachometer
>>> has nothing to do with the propellor.
>>>
>>> Cheers;
>>> Walt
>>>
>>> -----Original Message----- From: A. Dennis Savarese
>>> Sent: Tuesday, August 07, 2012 12:54 PM
>>> To: yak-list@matronics.com
>>> Subject: Re: Yak-List: Re: Engine RPM and propeller speed
>>>
>>> <dsavarese0812@bellsouth.net>
>>>
>>> The V530 limits are your engine RPM limits, which according to the
>>> manual is 2950 RPM. I prefer to use 2900 though.
>>>
>>> A. Dennis Savarese
>>> 334-285-6263
>>> 334-546-8182 (mobile)
>>> www.yak-52.com
>>> Skype - Yakguy1
>>>
>>> On 8/7/2012 2:42 PM, N642K wrote:
>>>>
>>>> Thanks Dennis. Once again you come thru with the answer. I guess I
>>>> need to look up the limits of the V530 and double check what is
>>>> already programmed on my Horizon tach.
>>>>
>>>>
>>>>
>>>>
>>>> Read this topic online here:
>>>>
>>>> http://forums.matronics.com/viewtopic.php?p=380323#380323
>>>>
>>>>
>>>>
>>>>
>>>>
>>>>
>>>>
>>>>
>>>>
>>>>
>>>>
>>>
>>>
>>>
>>>
>>>
>>>
>>>
>>>
>>>
>>
>>
>>
>>
>>
>>
>>
>>
>>
>
>
Message 4
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| Subject: | Re: Oshkosh and MTW |
Oh contrary. We're on our way from a raid on the T34 guys base at Strugin B
ay one year at OSH. You & Dead Bear were an element near the back. we didn
't, catch the T34 guys because they out on flight. On RTB, I hear you over
the RT "shooting" one of our own! I turned back & caught you pulling away f
rom you're dastardly deed & pulled into perfect pursuit lead on your wingman
(Dead Bear in a 52) whom I dispatched with easy. The whole time Hal Morley
hung diligently to my wing (mostly due to my smooth flying). He will swear
to it.
Jim "Pappy" Goolsby
Sent from my iPad
On Aug 8, 2012, at 12:59 PM, Brian Lloyd <brian@lloyd.com> wrote:
>
>
> On Wed, Aug 8, 2012 at 8:51 AM, " <cjpilot710@aol.com> wrote:
> Geees the way I remember it he was your wingman when I shot him down.
>
> When was that? The only one I ever played "tactical" with was Barry.
>
> we changed his call sign from "Dbear" to "Dead Bear". One more turn I mig
ht have gotten you too.
>
> Must have been someone else.
>
> --
> Brian Lloyd, WB6RQN/J79BPL
> 3191 Western Dr.
> Cameron Park, CA 95682
> brian@lloyd.com
> +1.767.617.1365 (Dominica)
> +1.916.877.5067 (USA)
>
>
>
==========================
=========
==========================
=========
==========================
=========
==========================
=========
>
Message 5
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|
605 hours TTSN, 0 SFOH. all russian logs. Stored in climate controlled warehouse.
V-530 prop also. Crated and ready to ship.
Contact me off line. Serious inquiries only
keith(at)mckinley.us
--------
Keith McKinley
700HS
KFIT
Read this topic online here:
http://forums.matronics.com/viewtopic.php?p=380569#380569
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