---------------------------------------------------------- Yak-List Digest Archive --- Total Messages Posted Thu 04/22/04: 17 ---------------------------------------------------------- Today's Message Index: ---------------------- 1. 12:56 AM - Re: American Voltage Regulator (Brian Lloyd) 2. 05:15 AM - Yak Groupies (Janet Davidson) 3. 06:40 AM - Dallas Advanced YAk Instruction (Aubrey Price) 4. 07:07 AM - Re: Type Certification (Ron Davis) 5. 07:10 AM - Re: Type Certification (Ron Davis) 6. 07:20 AM - Helpful information/shameless commercial message (Ron Davis) 7. 07:32 AM - Re: Type Certification (Ernie) 8. 10:01 AM - Re: Type Certification (Ron Davis) 9. 10:27 AM - Re: Emergency tank YAK 52 and aux air fitting (Bitterlich GS11 Mark G) 10. 11:10 AM - Re: Emergency tank YAK 52 and aux air fitting (Doug Sapp) 11. 11:17 AM - Re: Did anyone see the YAK GIRLS at Sun-n-FUN???? (Jim Ivey) 12. 03:34 PM - Re: Emergency tank YAK 52 and aux air fitting (Gus Fraser) 13. 05:35 PM - Yak-52 Magneto problem (Andrei Litouev) 14. 06:25 PM - Re: Emergency tank YAK 52 and aux air fitting (A. Dennis Savarese) 15. 07:20 PM - Survey on what you like to do with your bird (Gus Fraser) 16. 09:47 PM - Re: Type Certification (Jon Boede) 17. 10:02 PM - YAK Conversions (Frank Haertlein) ________________________________ Message 1 _____________________________________ Time: 12:56:37 AM PST US From: Brian Lloyd Subject: Re: Yak-List: American Voltage Regulator --> Yak-List message posted by: Brian Lloyd Doug Sapp wrote: > --> Yak-List message posted by: "Doug Sapp" > > My man, if you find one share the info, I have spent over (is my wife > listening?) well a lot trying to solve that question. I gave up and bought > a B&C. Not many people are building generator controllers these days. Where you need to look is over in jet-land. Many turbine engines use DC generators because they can be used as starting motors when run in reverse. They also are for 28V electrical systems. That is where I would look. OTOH you may find that they are prohibitively expensive. An alternator is lighter, simpler, more reliable, and has more output. It might be time Steve. -- Brian Lloyd 6501 Red Hook Plaza brian@lloyd.com Suite 201 http://www.lloyd.com St. Thomas, VI 00802 +1.340.998.9447 (voice) +1.360.838.9669 (fax) There is a time to laud one's country and a time to protest. A good citizen is prepared to do either as the need arises. ________________________________ Message 2 _____________________________________ Time: 05:15:33 AM PST US From: "Janet Davidson" Subject: Yak-List: Yak Groupies --> Yak-List message posted by: "Janet Davidson" "models were wearing half shirts" - saw plenty of those at SNF, but judging by what I saw hanging out below the (very stretched) t-shirt, I doubt I'd call them models..... ;) There are times when I wished I'd had a camera handy! "YAK GROUPIES!!!!" - don't know about the female version, but the male version has been around for years I'm happy to say ... ;) Janet Ph: 920 232 9238 email: gbvfx@hotmail.com Sign-up for a FREE BT Broadband connection today! http://www.msn.co.uk/specials/btbroadband ________________________________ Message 3 _____________________________________ Time: 06:40:12 AM PST US From: Aubrey Price Subject: Yak-List: Dallas Advanced YAk Instruction --> Yak-List message posted by: Aubrey Price My partner ( Jim Bowerman ) is trying to get a group together in the Dallas area. He is working with a Russian Instructor that would come to the area and give advanced instruction in the YAK 52. If anyone is interested, we would like to start putting together a list of interested parties. If you are interested, there is a link at the top of this page http://www.tammyprice.com/yak/ that says" Click Here if you are interested in YAK Flight Instruction" . Complete the form and we will keep you informed of the progress. Thanks Aubrey Price N288Y ________________________________ Message 4 _____________________________________ Time: 07:07:04 AM PST US From: "Ron Davis" Subject: Re: Yak-List: Type Certification --> Yak-List message posted by: "Ron Davis" Piper and Cessna do it fairly often, and lots of others companies start the process, but don't finish it. You can't do one plane, you have to do the model, and you need to be the manufacturer. ________________________________ Message 5 _____________________________________ Time: 07:10:32 AM PST US From: "Ron Davis" Subject: Re: Yak-List: Type Certification --> Yak-List message posted by: "Ron Davis" That is possible, EAA can help or FSDO can (but probably won't) issue you an exemption. You still can't carry passengers or cargo for hire though, and that's what he asked. There is a very thin line between carying passengers for hire and giving flight instruction (in a supersonic, Eastern block aircraft) to a primary student, who perhaps hasn't gotten his student pilot license yet) ________________________________ Message 6 _____________________________________ Time: 07:20:04 AM PST US From: "Ron Davis" Subject: Yak-List: Helpful information/shameless commercial message --> Yak-List message posted by: "Ron Davis" I have new Russian air filler fittings for sale that can easily adapted to any US type fitting ________________________________ Message 7 _____________________________________ Time: 07:32:28 AM PST US From: "Ernie" Subject: Re: Yak-List: Type Certification --> Yak-List message posted by: "Ernie" Ask this guy how he gets away with it. http://www.jetwarbird.com Ernie ----- Original Message ----- From: "Ron Davis" Subject: Re: Yak-List: Type Certification > --> Yak-List message posted by: "Ron Davis" > > That is possible, EAA can help or FSDO can (but probably won't) issue you an > exemption. You still can't carry passengers or cargo for hire though, and > that's what he asked. > > There is a very thin line between carying passengers for hire and giving > flight instruction (in a supersonic, Eastern block aircraft) to a primary > student, who perhaps hasn't gotten his student pilot license yet) > > ________________________________ Message 8 _____________________________________ Time: 10:01:26 AM PST US From: "Ron Davis" Subject: Re: Yak-List: Type Certification --> Yak-List message posted by: "Ron Davis" I already know. He has a very good working relationship with his FSDO. FSDO can do a lot for you if they like you, and make life really miserable if they don't. ________________________________ Message 9 _____________________________________ Time: 10:27:54 AM PST US From: Bitterlich GS11 Mark G Subject: RE: Yak-List: Emergency tank YAK 52 and aux air fitting --> Yak-List message posted by: Bitterlich GS11 Mark G Hi Dennis. I do not want to appear contrary, but while I understand your viewpoint, it can easily be extended to illogical ends. Many hydraulic systems in todays jet aircraft have systems where at the flick of a switch, they are either "combined" or "isolated" to achieve the exact goals you mention. The same is done in the YAK-50, merely with the addition of a one way check valve. What if that check valve itself should fail? Well then it would no longer be "isolated", which in itself is not the end of the world. Only if the check valve AND a main air system leak happened at the same time would it cause major heart ache. The fact is, things do fail. Lines, tanks, fittings, you name it. Most systems also leak, albeit sometimes very slowly. Playing the "what if" game.... What if the emergency bottle in my 50 did not get the gear ALL the way down. Why.... In some situations, I could merely fly around, let it pump back up again, and reapply it. Not so with a totally isolated system. Regardless, I respect your personal preference, and agree you have a solid point from one side of the coin. From the other, I am the kind of person who likes choices, and I like to be able to make them from within the cockpit. That said, I want my emergency air bottle to be full at the beginning of every flight. And if it is a little low, I see no reason why the air-compressor can't fill it. I'll take the risk that the one addidional check valve that allows that capability may someday fail. R/S, Mark Bitterlich p.s. I know I asked for it... thanks. -----Original Message----- From: A. Dennis Savarese [mailto:adsavar@gte.net] Subject: Re: Yak-List: Emergency tank YAK 52 and aux air fitting --> Yak-List message posted by: "A. Dennis Savarese" The answer is quite logical. Isolating the emergency system from the main prevents potential loss of both air systems should a leak occur. Yes, it could be plumbed, but why? If the emergency system is secure, it should not leak down regardless of what the main system does. That does not apply to the 50. There really is only 3 items that can leak in the emergency system, assuming the valves are closed. 1- The B nut on the tank or the tank itself of course; 2-The check valve that connects to the external air fill port; 3- Either one of the valves or B nuts coming to the valves from the emergency air tank,in the cockpits. Personally, I think the 52's system is more secure and provides effective redundancy versus the 50's system for the reason mentioned above. Dennis ________________________________ Message 10 ____________________________________ Time: 11:10:30 AM PST US From: "Doug Sapp" Subject: RE: Yak-List: Emergency tank YAK 52 and aux air fitting --> Yak-List message posted by: "Doug Sapp" Dennis and Mark, I have been watching this from a distance and would offer up my "10 cents worth" for your consideration. After 200 hours of flying the Yak 18 / CJ5 which is I believe is plumbed like the 50 I would have to agree with Mark that it is most convenient and (IMHO) may be the best way to go. Notice I say "maybe"-- I am waiting for someone to offer up a good reason why it is not a good idea to have both systems automatically "topped off" and full shortly after each takeoff. Loss of air pressure from the main tank has no effect on the emergency air tank pressure in the 18 / CJ5. On the other hand this was the norm in the 50's when my Yak was being built in Russia and for some reason they (the Russians) saw fit to change the system in later years. We need to discover why they thought it was necessary, heck, maybe there is something else in the 52 that makes it so...Not being a Yak 52 guy (or a mind reader) I really have no idea. I do know that the Yak 18 system is a marvel of simplicity, and it does everything the current systems do. For those who I foolishly told that the Mini Yak would be at Red Star, I have to admit that unfortunately it was not meant to be. Problems with fabric work, and final assembly have prevented this from happening. Hopefully we will have it at the Nebraska gathering in June if all goes well and the fabric gods smiles on us. Always Yakin, Doug Sapp -----Original Message----- From: owner-yak-list-server@matronics.com [mailto:owner-yak-list-server@matronics.com]On Behalf Of Bitterlich GS11 Mark G Subject: RE: Yak-List: Emergency tank YAK 52 and aux air fitting --> Yak-List message posted by: Bitterlich GS11 Mark G Hi Dennis. I do not want to appear contrary, but while I understand your viewpoint, it can easily be extended to illogical ends. Many hydraulic systems in todays jet aircraft have systems where at the flick of a switch, they are either "combined" or "isolated" to achieve the exact goals you mention. The same is done in the YAK-50, merely with the addition of a one way check valve. What if that check valve itself should fail? Well then it would no longer be "isolated", which in itself is not the end of the world. Only if the check valve AND a main air system leak happened at the same time would it cause major heart ache. The fact is, things do fail. Lines, tanks, fittings, you name it. Most systems also leak, albeit sometimes very slowly. Playing the "what if" game.... What if the emergency bottle in my 50 did not get the gear ALL the way down. Why.... In some situations, I could merely fly around, let it pump back up again, and reapply it. Not so with a totally isolated system. Regardless, I respect your personal preference, and agree you have a solid point from one side of the coin. From the other, I am the kind of person who likes choices, and I like to be able to make them from within the cockpit. That said, I want my emergency air bottle to be full at the beginning of every flight. And if it is a little low, I see no reason why the air-compressor can't fill it. I'll take the risk that the one addidional check valve that allows that capability may someday fail. R/S, Mark Bitterlich p.s. I know I asked for it... thanks. -----Original Message----- From: A. Dennis Savarese [mailto:adsavar@gte.net] Subject: Re: Yak-List: Emergency tank YAK 52 and aux air fitting --> Yak-List message posted by: "A. Dennis Savarese" The answer is quite logical. Isolating the emergency system from the main prevents potential loss of both air systems should a leak occur. Yes, it could be plumbed, but why? If the emergency system is secure, it should not leak down regardless of what the main system does. That does not apply to the 50. There really is only 3 items that can leak in the emergency system, assuming the valves are closed. 1- The B nut on the tank or the tank itself of course; 2-The check valve that connects to the external air fill port; 3- Either one of the valves or B nuts coming to the valves from the emergency air tank,in the cockpits. Personally, I think the 52's system is more secure and provides effective redundancy versus the 50's system for the reason mentioned above. Dennis ________________________________ Message 11 ____________________________________ Time: 11:17:59 AM PST US From: "Jim Ivey" Subject: RE: Yak-List: Did anyone see the YAK GIRLS at Sun-n-FUN???? --> Yak-List message posted by: "Jim Ivey" Getting' old is heck, ain't it Pappy? Jim Ivey > -----Original Message----- > From: Pappy > I tried to catch up with them but was side tracked by a > scaled down (80%) all > metal Spitfire. After all one must have priorities. > Jim Goolsby ________________________________ Message 12 ____________________________________ Time: 03:34:29 PM PST US From: "Gus Fraser" Subject: RE: Yak-List: Emergency tank YAK 52 and aux air fitting --> Yak-List message posted by: "Gus Fraser" Imagine the following. You take off and your main gear seals burst and all your air leaves the aircraft. If there is an open connection between the main and emergency system then guess what, you just lost your emergency air as well. Obviously you can and will do what you like but personally I understand that emergency means just that. I carry an adapter in my aircraft that has two connectors on the non plane end. One is for a scuba bottle and the other is for a standard air tank. I have never been in a situation where I could not get air with this set up. Both times I have had to use it the scuba guy came out and was happy with a ride around the circuit as payment for his services. Gus -----Original Message----- From: owner-yak-list-server@matronics.com [mailto:owner-yak-list-server@matronics.com]On Behalf Of Bitterlich GS11 Mark G Subject: RE: Yak-List: Emergency tank YAK 52 and aux air fitting --> Yak-List message posted by: Bitterlich GS11 Mark G Hi Dennis. I do not want to appear contrary, but while I understand your viewpoint, it can easily be extended to illogical ends. Many hydraulic systems in todays jet aircraft have systems where at the flick of a switch, they are either "combined" or "isolated" to achieve the exact goals you mention. The same is done in the YAK-50, merely with the addition of a one way check valve. What if that check valve itself should fail? Well then it would no longer be "isolated", which in itself is not the end of the world. Only if the check valve AND a main air system leak happened at the same time would it cause major heart ache. The fact is, things do fail. Lines, tanks, fittings, you name it. Most systems also leak, albeit sometimes very slowly. Playing the "what if" game.... What if the emergency bottle in my 50 did not get the gear ALL the way down. Why.... In some situations, I could merely fly around, let it pump back up again, and reapply it. Not so with a totally isolated system. Regardless, I respect your personal preference, and agree you have a solid point from one side of the coin. From the other, I am the kind of person who likes choices, and I like to be able to make them from within the cockpit. That said, I want my emergency air bottle to be full at the beginning of every flight. And if it is a little low, I see no reason why the air-compressor can't fill it. I'll take the risk that the one addidional check valve that allows that capability may someday fail. R/S, Mark Bitterlich p.s. I know I asked for it... thanks. -----Original Message----- From: A. Dennis Savarese [mailto:adsavar@gte.net] Subject: Re: Yak-List: Emergency tank YAK 52 and aux air fitting --> Yak-List message posted by: "A. Dennis Savarese" The answer is quite logical. Isolating the emergency system from the main prevents potential loss of both air systems should a leak occur. Yes, it could be plumbed, but why? If the emergency system is secure, it should not leak down regardless of what the main system does. That does not apply to the 50. There really is only 3 items that can leak in the emergency system, assuming the valves are closed. 1- The B nut on the tank or the tank itself of course; 2-The check valve that connects to the external air fill port; 3- Either one of the valves or B nuts coming to the valves from the emergency air tank,in the cockpits. Personally, I think the 52's system is more secure and provides effective redundancy versus the 50's system for the reason mentioned above. Dennis ________________________________ Message 13 ____________________________________ Time: 05:35:12 PM PST US From: "Andrei Litouev" Subject: Yak-List: Yak-52 Magneto problem --> Yak-List message posted by: "Andrei Litouev" Last Saturday, I tried to start my 52. Run out of air. I unscrew front sparkplug from 5th cylinder, shutoff air valve, bleed the air from system ( press the brake several times). Friend of mine hold the sparkplug cable, I press start push button - no sparks. I opened left magneto cower and found hi voltage wire shorted to the ground. 20 minutes to fix the problem, close everything, another 20 minutes recharge my scuba tank (5 minutes drive from airport to scuba shop), and with last minutes of day light start the engine, taxi and park. Safety weir and anther staff Sunday evening after skydiving ( hobby of mine). Blue skies, Andrei AL822 ________________________________ Message 14 ____________________________________ Time: 06:25:36 PM PST US From: "A. Dennis Savarese" Subject: Re: Yak-List: Emergency tank YAK 52 and aux air fitting --> Yak-List message posted by: "A. Dennis Savarese" Mark, You are certainly entitled to your opinion and you make some good points. There are those that prefer to leave the system alone and those that prefer to "make it better". I personally prefer to leave it alone and have never had a problem with the current system's functionality. The only problem I have ever had was getting a case of the "dumb-ass" in which I would leave the main air valve on and the main air system would leak down over several days. Dennis ----- Original Message ----- From: "Bitterlich GS11 Mark G" Subject: RE: Yak-List: Emergency tank YAK 52 and aux air fitting > --> Yak-List message posted by: Bitterlich GS11 Mark G > > Hi Dennis. > > I do not want to appear contrary, but while I understand your viewpoint, > it can easily be extended to illogical ends. Many hydraulic systems in > todays jet aircraft have systems where at the flick of a switch, they are > either "combined" or "isolated" to achieve the exact goals you mention. > The same is done in the YAK-50, merely with the addition of a one way > check valve. What if that check valve itself should fail? Well then it > would no longer be "isolated", which in itself is not the end of the world. > Only if the check valve AND a main air system leak happened at the same > time would it cause major heart ache. > > The fact is, things do fail. Lines, tanks, fittings, you name it. Most > systems also leak, albeit sometimes very slowly. > > Playing the "what if" game.... What if the emergency bottle in my 50 did > not get the gear ALL the way down. Why.... In some situations, I could > merely fly around, let it pump back up again, and reapply it. Not so with > a totally isolated system. > > Regardless, I respect your personal preference, and agree you have a solid > point from one side of the coin. From the other, I am the kind of person > who likes choices, and I like to be able to make them from within the > cockpit. That said, I want my emergency air bottle to be full at the > beginning of every flight. And if it is a little low, I see no reason > why the air-compressor can't fill it. I'll take the risk that the one > addidional check valve that allows that capability may someday fail. > > R/S, > > Mark Bitterlich > > p.s. I know I asked for it... thanks. > > > -----Original Message----- > From: A. Dennis Savarese [mailto:adsavar@gte.net] > To: yak-list@matronics.com > Subject: Re: Yak-List: Emergency tank YAK 52 and aux air fitting > > > --> Yak-List message posted by: "A. Dennis Savarese" > > The answer is quite logical. Isolating the emergency system from the main > prevents potential loss of both air systems should a leak occur. Yes, it > could be plumbed, but why? If the emergency system is secure, it should not > leak down regardless of what the main system does. That does not apply to > the 50. There really is only 3 items that can leak in the emergency system, > assuming the valves are closed. 1- The B nut on the tank or the tank itself > of course; 2-The check valve that connects to the external air fill port; 3- > Either one of the valves or B nuts coming to the valves from the emergency > air tank,in the cockpits. > > Personally, I think the 52's system is more secure and provides effective > redundancy versus the 50's system for the reason mentioned above. > Dennis > > ________________________________ Message 15 ____________________________________ Time: 07:20:43 PM PST US From: "Gus Fraser" Subject: Yak-List: Survey on what you like to do with your bird --> Yak-List message posted by: "Gus Fraser" http://gusfraser.com/surveysays/activity.cgi I will run this for a few days and then publish the results. Also any other interesting questions for future surveys whould be of interest. Gus ________________________________ Message 16 ____________________________________ Time: 09:47:13 PM PST US Subject: Re: Yak-List: Type Certification From: "Jon Boede" --> Yak-List message posted by: "Jon Boede" His FSDO knows him, likes him, and works with him on the instruction. > --> Yak-List message posted by: "Ernie" > > Ask this guy how he gets away with it. > > http://www.jetwarbird.com > > Ernie > ----- Original Message ----- > From: "Ron Davis" > To: > Subject: Re: Yak-List: Type Certification > > >> --> Yak-List message posted by: "Ron Davis" >> >> That is possible, EAA can help or FSDO can (but probably won't) issue >> you > an >> exemption. You still can't carry passengers or cargo for hire though, >> and that's what he asked. >> >> There is a very thin line between carying passengers for hire and >> giving flight instruction (in a supersonic, Eastern block aircraft) to >> a primary student, who perhaps hasn't gotten his student pilot license >> yet) >> >> > > ________________________________ Message 17 ____________________________________ Time: 10:02:13 PM PST US From: "Frank Haertlein" Subject: Yak-List: YAK Conversions --> Yak-List message posted by: "Frank Haertlein" Yaksters; If you want to convert........ Hogsheads to Gallons Atmospheres to PSI Noggins to Pints Nickers to Pounds Grams to Ounces Horsepower to Kilowatts Inches to Millibars Knots to MPH Or whatever to whatever.............. Then check out and download this MS_Exel file. I've had it for years and finally decided to put it into a usable format for the use of my fellow Yaksters. http://home.earthlink.net/~yak52driver/Conversions.xls Over the years it's helped me keep track of many different quantities. Hope it helps! Frank YAK-52 PS; Most everything is set up to work correctly but a few quantities need their formula corrected. You can recognize them by the #VALUE in the answer column. Anyone want to provide the corrections? N9110M