Yak-List Digest Archive

Wed 04/29/09


Total Messages Posted: 18



Today's Message Index:
----------------------
 
     1. 04:59 AM - Re: Baklan Radio Issue (Rob Rowe)
     2. 05:06 AM - Pressure Gage needed (Ira Saligman)
     3. 05:39 AM - Some "junk" wanted (cjpilot710@aol.com)
     4. 07:38 AM - Air Bottles (SC)
     5. 08:34 AM - Re: Air Bottles (doug sapp)
     6. 09:12 AM - Pilot Required (bigglesusa)
     7. 09:28 AM - Re: Prop Governor (romanupshaw)
     8. 09:58 AM - Re: Re: Baklan Radio Issue (Bitterlich, Mark G CIV Det Cherry Point, MALS-14 64E)
     9. 10:55 AM - Re: Re: Prop Governor (Walter Lannon)
    10. 01:47 PM - Re: Re: Prop Governor (Bitterlich, Mark G CIV Det Cherry Point, MALS-14 64E)
    11. 03:01 PM - Re: Baklan Radio Issue (TXYak)
    12. 03:09 PM - Dynon A10  (SRGraham)
    13. 04:39 PM - Re: Baklan Radio Issue (Rob Rowe)
    14. 06:56 PM - Re: Dynon A10 (Joe Howse)
    15. 07:03 PM - Re: Dynon A10 (Joe Howse)
    16. 09:09 PM - High tension insulated rod (Chris Wise)
    17. 10:54 PM - Re: Re: Prop Governor (nc69666@aol.com)
    18. 11:17 PM - Re: Pilot Required (NebraskaYak)
 
 
 


Message 1


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    Time: 04:59:22 AM PST US
    Subject: Re: Baklan Radio Issue
    From: "Rob Rowe" <yak-list@robrowe.plus.com>
    Chris, Mark B is the expert ... but you might just try the following as a long shot. With the Baklan radio removed from its mount take a look at the back of the mounting tray. Underneath at the back (located by a couple of screws into the tray mount rails normally covered by the radio) is an audio frequency adapter/amplifier module thats used to match the radio receive output to the impedance of downstream avionics. On removing the locating screws (found mine to be loose and only kept in by the radio sitting on top trapping the screw heads) the adapter can be unplugged and examined ... as I recall it can be lifted out through the gap in the tray base, you don't need to dismantle anything else or get access to the tray underside. The adapter has a multiway electrical connector into the tray which if disturbed / dirty / damaged might replicate the nil RX problem you described ... as electrically it sits in between the Baklan radio and the intercom (both of which you've already swapped out). This should only take a few minutes to check out given the modular design and it's electrically non-invasive ... so you cannot do much harm inspecting it as there's nothing to tweak and only two audio transformers. two transistors, a resistor and a couple of capacitors inside. Anyway probably worth a look ... if nothing else just to eliminate this from the usual suspects. brgds, Rob R Read this topic online here: http://forums.matronics.com/viewtopic.php?p=241875#241875


    Message 2


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    Time: 05:06:04 AM PST US
    From: "Ira Saligman" <isaligman@saligman.com>
    Subject: Pressure Gage needed
    Does anyone have a spare air pressure gage (for a 50 but a 52 but it appears to be the same as the 52) ? Ira Saligman o (610) 940-0420 c (610) 324-5500 f (215) 243-7699


    Message 3


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    Time: 05:39:28 AM PST US
    From: cjpilot710@aol.com
    Subject: Some "junk" wanted
    Well I finally found a use for the CJ-6 ADF antenna mount. You know the mounting that hole the sensing antenna that goes over that big hole in the belly. It is "perfect" (I'm told) to mount my pitch servo for my auto pilot. HOWEVER -- I sent mine to the dump a number of years ago. Soooooo. I just know there are dozens of you CJ-6 guys/gals out there that still have that OLD crap on their shelves and want to get rid of it. I am willing to pay for its disposal. Not much mind you, since its in your way right? :) Jim "Pappy" Goolsby **************Access 350+ FREE radio stations anytime from anywhere on the web. Get the Radio Toolbar! (http://toolbar.aol.com/aolradio/download.html?ncid=emlcntusdown00000003)


    Message 4


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    Time: 07:38:02 AM PST US
    From: "SC" <thecookoos@gmail.com>
    Subject: Air Bottles
    Can anyone please advise air tank tester company in Virginia area (YAK 18T).Thanks. Biggles usa


    Message 5


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    Time: 08:34:36 AM PST US
    Subject: Re: Air Bottles
    From: doug sapp <dougsappllc@gmail.com>
    Out of your area but Keith Harbor in NB can do them for you. He is a fellow Red Star pilot and makes his living within our Yak/Nanchang community, support him if you can. Ph 402-564-7884 Doug On Wed, Apr 29, 2009 at 7:37 AM, SC <thecookoos@gmail.com> wrote: > *Can anyone please advise air tank tester company in Virginia area (YAK > 18T).Thanks.* > > * * > > *Biggles usa* > > * > > * > > -- Always Yakin, Doug Sapp Phone 509-826-4610 Fax 509-826-3644


    Message 6


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    Time: 09:12:50 AM PST US
    Subject: Pilot Required
    From: "bigglesusa" <thecookoos@gmail.com>
    Looking for experienced YAK 52 pilot to ferry a 52 going for repair from Vermont to Franklin VA. Aircraft is being checked by local YAK experts GESOCO. -------- 'Le temps mange la vie' Read this topic online here: http://forums.matronics.com/viewtopic.php?p=241929#241929


    Message 7


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    Time: 09:28:18 AM PST US
    Subject: Re: Prop Governor
    From: "romanupshaw" <romanupshaw@bellsouth.net>
    Sorry... been away a couple days. Thanks for the feedback. I will try the suggestions. Mark, you do understand it correctly. And remember, it cycles fine on the ground. However, if I pull the throttle back to idle and really slow the speed down, the rpm will come back. To what I don't know. But in straight and level, pulling throttle back, it will not slow down UNTIL speed really bleeds off....like on landing. This goes along with what I meant with it acting like a fixed prop. Hope that's understandable. To answer your questions, pretty much all of them are "yes". I haven't touched the prop governor. I took the entire prop, hub and all, off and shipped it to Jill. I didn't personally replace the blades. The only thing I question is if I had a little of this prior to recently. It has never come back to a GOOD solid cruise setting but, again, I don't cruise much if ever. I know it used to come back to very low 60's. It is MUCH worse now though and is very evident ... even annoying. I agree with "where hands were last". That's why I wanted to seek advice before I went fooling around with the governor or elsewhere. I know that on takeoff the power is right on 100%. I don't have much room for "sightseeing" on my strip during takeoff but I know it doesn't go over 100%. I will fly this afternoon again and keep both at FULL forward in flight and reply back with an exact reading on that. Thanks to all who are offering suggestions!! Roman Upshaw Read this topic online here: http://forums.matronics.com/viewtopic.php?p=241934#241934


    Message 8


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    Time: 09:58:14 AM PST US
    Subject: Re: Baklan Radio Issue
    From: "Bitterlich, Mark G CIV Det Cherry Point, MALS-14 64E" <mark.bitterlich@navy.mil>
    Rob, thanks for the compliment. Although I am an Avionics person by profession, I have only repaired a few Baklan models, and have only the original Russian manual for the R/T (not translated). Actually I think Rob has a better grasp on the specifics regarding the whole YAK-52 layout than I do. That said, we really have to define the specifics. "Transmits great but does not receive" is too ambiguous. We can narrow down what is happening by answering the following questions: 1. When you transmit, can you hear yourself talk through your headset (this is called "side-tone")? 2. When you turn the squelch switch off, do you hear static? Let's start with that and go from there. What we are trying to deduce is as follows: A. Do we have an actual problem with the RF stages? B. Do we have a problem with an AUDIO wire? In the end, we are going to have to try and find the audio path from the radio R/T itself to the headset. From there we will have to obtain an audio source generator... The cheapest source for that is from Lowes... They sell a telephone tracker set that consists of a warbling tone audio generator and an inductive pickup probe. These are invaluable tools when tracing down lost audio problems. More than likely, this problem is beyond the scope of someone not trained in the troubleshooting and repair of defective audio systems. Of course, we're not "there" at this point since we are not sure what exactly is "missing". It seems unlikely that you have a coax feedline or antenna problem since you say it transmits to someone else A-OK. But, that is not a definite for SURE situation. If you want to make sure that is not the problem, locate the antenna coax that connects to the radio itself. Unscrew it. Take a piece of wire... Any wire, even safety wire, and stick it into the center conductor of the radio's coax connector. Not the coax leading to the antenna mind you, but the RF connector actually mounted on the radio. We are NOT going to transmit with this wire stuck in there, but if you really wanted to try that, you could make it about 22 inches long and that would work. Regardless, about a foot long is fine for this receive only test. Just make sure the wire does not come in contact with any ground. Hang it by a piece of string. Use your imagination... It's not critical. Get a hand-held radio. Transmit about 5 feet away from this wire you have hanging out of your antenna connector on the radio itself. Can you receive now? Note: Only do this test if the answer to question number "2" above is YES. If the answer is NO, you are wasting your time. Mark Bitterlich -----Original Message----- From: owner-yak-list-server@matronics.com [mailto:owner-yak-list-server@matronics.com] On Behalf Of Rob Rowe Sent: Wednesday, April 29, 2009 7:58 AM Subject: Yak-List: Re: Baklan Radio Issue Chris, Mark B is the expert ... but you might just try the following as a long shot. With the Baklan radio removed from its mount take a look at the back of the mounting tray. Underneath at the back (located by a couple of screws into the tray mount rails normally covered by the radio) is an audio frequency adapter/amplifier module thats used to match the radio receive output to the impedance of downstream avionics. On removing the locating screws (found mine to be loose and only kept in by the radio sitting on top trapping the screw heads) the adapter can be unplugged and examined ... as I recall it can be lifted out through the gap in the tray base, you don't need to dismantle anything else or get access to the tray underside. The adapter has a multiway electrical connector into the tray which if disturbed / dirty / damaged might replicate the nil RX problem you described ... as electrically it sits in between the Baklan radio and the intercom (both of which you've already swapped out). This should only take a few minutes to check out given the modular design and it's electrically non-invasive ... so you cannot do much harm inspecting it as there's nothing to tweak and only two audio transformers. two transistors, a resistor and a couple of capacitors inside. Anyway probably worth a look ... if nothing else just to eliminate this from the usual suspects. brgds, Rob R > > I have the Baklan Radio in my 52. I just recently got the plane > flying and have never had the radio working properly. It transmits > great but doesn't receive anything. I have tried a different > radio(that does work) and got the same result. I tried a different > antenna with the same result. I tried a different amplifier with the > same result. The intercom works perfectly and like I said the radio > transmissions were reported clear by a friend about 30 miles away. > Any suggestions? > > Chris Keating


    Message 9


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    Time: 10:55:00 AM PST US
    From: Walter Lannon <wlannon@persona.ca>
    Subject: Re: Prop Governor
    I would suggest that you check the blade angles. This should be done using a propellor protractor by some one familiar with it's use. It can be done using a modern level device but these are very subject to operator error since they are a level not a protractor and require calculation to establish the zero reference. If the blade angle is set too low it will work just fine at high RPM because it is under control of the governor which, from your comments, appears to be doing it's job.When you move the RPM control to full coarse the governor pilot valve is at positive coarse pitch. You now have a coarse angle fixed pitch prop. But if the blade angle is set too low the RPM will be high. Walt ----- Original Message ----- From: "romanupshaw" <romanupshaw@bellsouth.net> Sent: Wednesday, April 29, 2009 9:27 AM Subject: Yak-List: Re: Prop Governor > > Sorry... been away a couple days. Thanks for the feedback. I will try > the suggestions. Mark, you do understand it correctly. And remember, it > cycles fine on the ground. However, if I pull the throttle back to idle > and really slow the speed down, the rpm will come back. To what I don't > know. But in straight and level, pulling throttle back, it will not slow > down UNTIL speed really bleeds off....like on landing. This goes along > with what I meant with it acting like a fixed prop. Hope that's > understandable. > > To answer your questions, pretty much all of them are "yes". I haven't > touched the prop governor. I took the entire prop, hub and all, off and > shipped it to Jill. I didn't personally replace the blades. The only thing > I question is if I had a little of this prior to recently. It has never > come back to a GOOD solid cruise setting but, again, I don't cruise much > if ever. I know it used to come back to very low 60's. It is MUCH worse > now though and is very evident ... even annoying. I agree with "where > hands were last". That's why I wanted to seek advice before I went > fooling around with the governor or elsewhere. > > I know that on takeoff the power is right on 100%. I don't have much room > for "sightseeing" on my strip during takeoff but I know it doesn't go over > 100%. I will fly this afternoon again and keep both at FULL forward in > flight and reply back with an exact reading on that. > > Thanks to all who are offering suggestions!! > Roman Upshaw > > > Read this topic online here: > > http://forums.matronics.com/viewtopic.php?p=241934#241934 > > >


    Message 10


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    Time: 01:47:47 PM PST US
    Subject: Re: Prop Governor
    From: "Bitterlich, Mark G CIV Det Cherry Point, MALS-14 64E" <mark.bitterlich@navy.mil>
    Everyone agrees... Check the blade angle. A really horrible thought though is that something might have gotten into the hub when the blades were removed for any kind of repair and the hub is now not ALLOWING the movement of the blades that it should. I'd say that this is highly unlikely and that the most probable cause is ... Blade angle. But... If the blade angle checks out to be dead on, I'd be thinking of checking to make sure the hub has "stop to stop" movement without restrictions of any kind. Some FOD inside of that hub could conceivably cause this. Hope not. And in fact, PROBABLY not. But.... Mark Bitterlich -----Original Message----- From: owner-yak-list-server@matronics.com [mailto:owner-yak-list-server@matronics.com] On Behalf Of Walter Lannon Sent: Wednesday, April 29, 2009 1:48 PM Subject: Re: Yak-List: Re: Prop Governor I would suggest that you check the blade angles. This should be done using a propellor protractor by some one familiar with it's use. It can be done using a modern level device but these are very subject to operator error since they are a level not a protractor and require calculation to establish the zero reference. If the blade angle is set too low it will work just fine at high RPM because it is under control of the governor which, from your comments, appears to be doing it's job.When you move the RPM control to full coarse the governor pilot valve is at positive coarse pitch. You now have a coarse angle fixed pitch prop. But if the blade angle is set too low the RPM will be high. Walt ----- Original Message ----- From: "romanupshaw" <romanupshaw@bellsouth.net> Sent: Wednesday, April 29, 2009 9:27 AM Subject: Yak-List: Re: Prop Governor > > Sorry... been away a couple days. Thanks for the feedback. I will try > the suggestions. Mark, you do understand it correctly. And remember, it > cycles fine on the ground. However, if I pull the throttle back to idle > and really slow the speed down, the rpm will come back. To what I don't > know. But in straight and level, pulling throttle back, it will not slow > down UNTIL speed really bleeds off....like on landing. This goes along > with what I meant with it acting like a fixed prop. Hope that's > understandable. > > To answer your questions, pretty much all of them are "yes". I haven't > touched the prop governor. I took the entire prop, hub and all, off and > shipped it to Jill. I didn't personally replace the blades. The only thing > I question is if I had a little of this prior to recently. It has never > come back to a GOOD solid cruise setting but, again, I don't cruise much > if ever. I know it used to come back to very low 60's. It is MUCH worse > now though and is very evident ... even annoying. I agree with "where > hands were last". That's why I wanted to seek advice before I went > fooling around with the governor or elsewhere. > > I know that on takeoff the power is right on 100%. I don't have much room > for "sightseeing" on my strip during takeoff but I know it doesn't go over > 100%. I will fly this afternoon again and keep both at FULL forward in > flight and reply back with an exact reading on that. > > Thanks to all who are offering suggestions!! > Roman Upshaw > > > Read this topic online here: > > http://forums.matronics.com/viewtopic.php?p=241934#241934 > > >


    Message 11


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    Time: 03:01:36 PM PST US
    Subject: Re: Baklan Radio Issue
    From: "TXYak" <CKeating@peoplepc.com>
    Thanks all for the help. Rob, you sent me to exactly the right spot. When I slid the radio out, the "audio frequency adapter/amplifier module" was completely missing. This has been the case with several things on this airplane. I borrowed one out of another Yak and it works perfect. As luck would have it....I was given a box of "old Yak crap" I rummaged through it and found a radio tray with the module still installed. Im in business. Thanks again! Chris Keating Read this topic online here: http://forums.matronics.com/viewtopic.php?p=241978#241978


    Message 12


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    Time: 03:09:15 PM PST US
    From: "SRGraham" <sgyak18t@bigpond.com>
    Subject: Dynon A10
    Good morning all, There was a recent discussion about adding instruments that were not STC, I have just installed a Dynon A 10 in my 18T on the weekend. It worked first time, straight out of the box, although I have yet to mount the remote compass. Without any adjustment at all, it paralleled the Russian military artificial horizon at all attitudes, airspeed alp senator slip or etc were all perfect and to my mind, it has been the best value instrument at approximately $2200 US on the market. SG


    Message 13


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    Time: 04:39:57 PM PST US
    Subject: Re: Baklan Radio Issue
    From: "Rob Rowe" <yak-list@robrowe.plus.com>
    Hi Chris, Pleased that worked out for you ... it's satisfying when the occasional long shot pays off! Just take care that the missing adapter isn't still floating around in avionics bay somewhere, as that could really spoil your day if it works further aft. Cheers, Rob Read this topic online here: http://forums.matronics.com/viewtopic.php?p=241986#241986


    Message 14


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    Time: 06:56:53 PM PST US
    From: "Joe Howse" <joeh@shaw.ca>
    Subject: Re: Dynon A10
    ----- Original Message ----- From: SRGraham To: yak-list@matronics.com Sent: Wednesday, April 29, 2009 3:04 PM Subject: Yak-List: Dynon A10 Good morning all, There was a recent discussion about adding instruments that were not STC, I have just installed a Dynon A 10 in my 18T on the weekend. It worked first time, straight out of the box, although I have yet to mount the remote compass. Without any adjustment at all, it paralleled the Russian military artificial horizon at all attitudes, airspeed alp senator slip or etc were all perfect and to my mind, it has been the best value instrument at approximately $2200 US on the market. SG


    Message 15


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    Time: 07:03:30 PM PST US
    From: "Joe Howse" <joeh@shaw.ca>
    Subject: Re: Dynon A10
    sg GLAD TO HEAR THAT ARE PLEASED WITH THE DYNON wE ARE IN THE PROCESS OF COMPLETING RESTORATION ON OUR 18T AND ARE ALSO INSTALLING THE DYNON, AND EVENTUALLY THE AUTOPILOT AD ON. JOE ----- Original Message ----- From: SRGraham To: yak-list@matronics.com Sent: Wednesday, April 29, 2009 3:04 PM Subject: Yak-List: Dynon A10 Good morning all, There was a recent discussion about adding instruments that were not STC, I have just installed a Dynon A 10 in my 18T on the weekend. It worked first time, straight out of the box, although I have yet to mount the remote compass. Without any adjustment at all, it paralleled the Russian military artificial horizon at all attitudes, airspeed alp senator slip or etc were all perfect and to my mind, it has been the best value instrument at approximately $2200 US on the market. SG


    Message 16


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    Time: 09:09:23 PM PST US
    From: "Chris Wise" <wise@txc.net.au>
    Subject: High tension insulated rod
    G'Day, Does anyone have any spare magneto high tension insulated rods for sale for M14P? This is the high tension lead the goes from the mag to the mag cap. We have one mag US due to the insulation breakdown. Have made a new lead with high tension wire, folded the wire over a small washer and soldered. Am yet to try it. If have part, please advise price and approx express post to Australia. Thanks and cheers, Chris


    Message 17


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    Time: 10:54:03 PM PST US
    Subject: Re: Prop Governor
    From: nc69666@aol.com
    Roman, Gary in Las Vegas, I have had the same problem with my CJ, I have a M14-P, So just last week I checked the blade angles, by looking at the index marks on the hub, my blades were set at "0" on the hub markings so I loosened the blade clamps and reset the blade angles to?2 index marks coarser giving me a higher blade angle. Your Governer is working just fine, as it controls the high RPM, which it is doing at 100%.? The blade angles in the hub,?and the counter weights is what controls the low RPM. When the blade angles are set too low of an angle in the hub, as the airspeed increases the counter weights will go to the high pitch stops trying to control the RPM, but when they reach the high pitch?travel stops, then the propeller becomes in a sense a fixed pitch prop. and the RPM will increase as the airspeed increases.? I am getting 100% 0n take off, and at 160 MPH indicated below 4500 ft, I can get it to 64%, Manifold pressure setting 735 MM.? At around 7000ft. I can hold about 67%.? I may set the angles ONE index coarser to see if I can get a bit slower RPM, but if you do, check the High Rpm on take off as I think that setting may be getting close to the limit for high pitch setting to still be able to?get 100% on the off.. Good Luck with the settings..? Let me knw how it works out for you...?? Gary -----Original Message----- From: romanupshaw <romanupshaw@bellsouth.net> Sent: Wed, 29 Apr 2009 9:27 am Subject: Yak-List: Re: Prop Governor Sorry... been away a couple days. Thanks for the feedback. I will try the suggestions. Mark, you do understand it correctly. And remember, it cycles fine on the ground. However, if I pull the throttle back to idle and really slow the speed down, the rpm will come back. To what I don't know. But in straight and level, pulling throttle back, it will not slow down UNTIL speed really bleeds off....like on landing. This goes along with what I meant with it acting like a fixed prop. Hope that's understandable. To answer your questions, pretty much all of them are "yes". I haven't touched the prop governor. I took the entire prop, hub and all, off and shipped it to Jill. I didn't personally replace the blades. The only thing I question is if I had a little of this prior to recently. It has never come back to a GOOD solid cruise setting but, again, I don't cruise much if ever. I know it used to come back to very low 60's. It is MUCH worse now though and is very evident ... even annoying. I agree with "where hands were last". That's why I wanted to seek advice before I went fooling around with the governor or elsewhere. I know that on takeoff the power is right on 100%. I don't have much room for "sightseeing" on my strip during takeoff but I know it doesn't go over 100%. I will fly this afternoon again and keep both at FULL forward in flight and reply back with an exact reading on that. Thanks to all who are offering suggestions!! Roman Upshaw Read this topic online here: http://forums.matronics.com/viewtopic.php?p=241934#241934 _- ===========================================================


    Message 18


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    Time: 11:17:32 PM PST US
    Subject: Re: Pilot Required
    From: "NebraskaYak" <andrew.malousek@COMCAST.NET>
    You can contact me offline, malouseka@aol.com Read this topic online here: http://forums.matronics.com/viewtopic.php?p=242029#242029




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