Yak-List Digest Archive

Mon 01/12/04


Total Messages Posted: 18



Today's Message Index:
----------------------
 
     1. 02:34 AM - Air bottles and Oil caps (Mark Levy)
     2. 04:24 AM - Re: CJ Speed (cpayne@joimail.com)
     3. 05:00 AM - Re: CJ Air Tanks (A. Dennis Savarese)
     4. 05:05 AM - Re: Oil Bottle Cap (A. Dennis Savarese)
     5. 05:20 AM - Emergency Air Tank Filling (Jeff Linebaugh)
     6. 05:20 AM - Bikes (Janet Davidson)
     7. 05:31 AM - Re: Emergency Air Tank Filling (A. Dennis Savarese)
     8. 05:45 AM - Re: Emergency Air Tank Filling (Aubrey Price)
     9. 06:18 AM - Re: CJ Air Tanks (Brian Lloyd)
    10. 06:31 AM - CJ emergency bottle charge (jay reiter)
    11. 06:55 AM - Re: CJ emergency bottle charge (Brian Lloyd)
    12. 07:13 AM - Re: CJ Air Tanks (A. Dennis Savarese)
    13. 07:15 AM - Re: CJ emergency bottle charge (A. Dennis Savarese)
    14. 07:32 AM - Re: Emergency Air Tank Filling (A. Dennis Savarese)
    15. 07:37 AM - Re: Oil Bottle Cap (KevLCo@aol.com)
    16. 07:42 AM - Re: CJ6A cruising at 300 Kph (Dave Laird)
    17. 09:40 AM - Oil bottle cap (Richard Goode)
    18. 06:50 PM - Re: Emergency Air Tank Filling (Walt Lannon)
 
 
 


Message 1


  • INDEX
  • Back to Main INDEX
  • NEXT
  • Skip to NEXT Message
  • LIST
  • Reply to LIST Regarding this Message
  • SENDER
  • Reply to SENDER Regarding this Message
    Time: 02:34:19 AM PST US
    From: "Mark Levy" <mwlevy@btinternet.com>
    Subject: Air bottles and Oil caps
    --> Yak-List message posted by: "Mark Levy" <mwlevy@btinternet.com> Can 100% agree with the recommendation to have your air bottles pressure tested annually. One of my formation buddies was running up his YAK 50 before heading out for a display, when there was a loud bang and he suddenly found himself 10 feet up in the air with the nose buried in the ground. The main air bottle had exploded, sending one half downwards and forward blowing the bottom skin off and also the bottom quarter of the firewall. The other half went inside the fus, denting the tanks and almost exiting the fus skin above. Why was he on his nose? The first bottle half also hit the throttle cable on its way out and sent the engine to full throttle - ups-a-daisy! Aircraft was an insurance write-off (although being re-built in Lithuania). UK CAA have sent a directive reminding owners of importance of frequent use of the snot valve, regular drainage and annual pressure test. Interestingly our russian contacts have never come across an exploding bottle: usual first sign of corrosion is a pinhole which means the bottle keeps losing pressure, leading to replacement (my emergency bottle did exactly that). Also, regarding the loss of oil bottle cap rings into the oil tank. I would be very circumspect about leaving the ring in the tank. We had a Yak over here that had a history of unstable oil pressure. When all else failed the tank was drained and (as I recall) two or three plastic oil bottle rings were found partially blocking the outlet. Incidentally, it happened to me once. After a half hour of abortive fishing with a piece of bent wire, the resourceful local engineer turned up with three enthusiastic 6 year old boys. The grinning winner of the sweepstake was hoisted onto the cowling, rolled up his sleeve and found the ring in about thirty seconds by plunging his his size 1 hand into the tank. (Oil was barely warm of course!) Might be useful info one day!


    Message 2


  • INDEX
  • Back to Main INDEX
  • PREVIOUS
  • Skip to PREVIOUS Message
  • NEXT
  • Skip to NEXT Message
  • LIST
  • Reply to LIST Regarding this Message
  • SENDER
  • Reply to SENDER Regarding this Message
    Time: 04:24:40 AM PST US
    From: cpayne@joimail.com
    Subject: Re: CJ Speed
    --> Yak-List message posted by: cpayne@joimail.com Hmmm, so what is so difficult about indicating an actual 300 Kph? With a little work, The stock CJ can easily achieve this at lower elevations. With the M-14, the AS needle swings even higher. Entry forms for the Sun 60 production race will soon be available. Anyone Wanna Race in a timed event? Merchandise awards from Aircraft Spruce are a bonus. If at least 4 Yaks/CJs enter, a separate class will be created. Craig Payne > > 300 Kph is 187 mph or 163 Kts. I also suspect that he is > referring to TAS and not IAS. It is also possible that > he has a static system leak that will cause his ASI to > indicate high thus causing TAS to be higher than actual. > Still, at full power I suspect that a CJ6A will reach > close to this speeds down low. I don't expect many people > to want to burn that much fuel to go an extra 10 knots > but I think it is possible. > > -- > -- > 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) >


    Message 3


  • INDEX
  • Back to Main INDEX
  • PREVIOUS
  • Skip to PREVIOUS Message
  • NEXT
  • Skip to NEXT Message
  • LIST
  • Reply to LIST Regarding this Message
  • SENDER
  • Reply to SENDER Regarding this Message
    Time: 05:00:44 AM PST US
    From: "A. Dennis Savarese" <adsavar@gte.net>
    Subject: Re: CJ Air Tanks
    --> Yak-List message posted by: "A. Dennis Savarese" <adsavar@gte.net> Hi Walt, Yes, that is correct. The 52's compressor does not charge the emergency system. The only way to recharge the emergency system is to charge it from the external air fill port. The point about the using Nitrogen to fill just the emergency side was somewhat confusing if both the main and emergency side were filled simultaneously from the external air fill port. Does the CJ have a separate pressure relief valve for each system (main and emergency)? If not, how does one put only compressed air into the main air system when the main system is completely empty. Pure N2 in an empty main air system will cause a lot of heartburn when attempting to start the engine. Dennis ----- Original Message ----- From: "Walt Lannon" <lannon@look.ca> Subject: Re: Yak-List: CJ Air Tanks > --> Yak-List message posted by: "Walt Lannon" <lannon@look.ca> > > Hi Dennis; > The CJ charging system is in parallel, Both fill through the opened main > valve, though the relief valve and water filter to a pair of non-return > check valves, one for each system. > Sounds like the same system as the 52 though I understand that the 52 does > not charge the emerg. from the compressor. Is that correct? That would be an > advantage over the CJ if using N2 since it could not be contaminated by air > from the compressor. > > I think I will borrow Jeff's idea and use N2 for the emerg. side and re-set > the relief about 3 to 5atm. lower after filling in order to reduce the > possibility of adding air from the compressor. > Cheers; > Walt > > > ----- Original Message ----- > From: "A. Dennis Savarese" <adsavar@gte.net> > To: <yak-list@matronics.com> > Subject: Re: Yak-List: CJ Air Tanks > > > > --> Yak-List message posted by: "A. Dennis Savarese" <adsavar@gte.net> > > > > Walt, > > Does the CJ emergency air tank fill along with (in parallel with) the main > > air tank or can you fill it separately from the main air tank? The YAK 52 > > is in parallel. They both fill at the same time. > > Just curious. > > Dennis > > ----- Original Message ----- > > From: "Walt Lannon" <lannon@look.ca> > > To: <yak-list@matronics.com> > > Subject: Re: Yak-List: CJ Air Tanks > > > > > > > --> Yak-List message posted by: "Walt Lannon" <lannon@look.ca> > > > > > > > I got to asking myself why there was a difference between the two > tanks, > > > and > > > > if there were any lessons to be learned. I think the Emergency Tank > is > > > much > > > > more "static".... Since it sits fully charged, it is not > "replenished" > > > and > > > > so does not get the benefit of any oil-mixed air circulating through > > it.. > > > > Re-filling the tank with Nitrogen instead of air may also help in the > > > future > > > > (If it leaks down, it may be replenished with normal air, but at > least > > it > > > > would start with "dry" N2.) > > > > > > Jeff; > > > Filling the emergency system with nitrogen is an excellent idea. I think > > if > > > you could start with a new or completely un-corroded tank this would > > extend > > > its life enormously. The emerency system is far less subject to leakage > > than > > > the main system and tends to retain a higher charge. In most > circumstances > > > this means it will not be accepting any additional charge from the > > compessor > > > and will only do so if there is a leak (pretty unlikely in most cases) > or > > if > > > used. It could be recharged with N2 after annual operation checks. Great > > > idea! > > > Walt > > > > > > > Hope this Lessons learned can help others....check the tanks EVERY > YEAR, > > > and > > > > recoat them thoroughly to help stave off corrosion, in particular the > > > > Emergency Air Tank. > > > > > > > > Jeff Linebaugh > > > > jefflinebaugh@earthlink.net > > > > > > > > > > > > > > > > > > > >


    Message 4


  • INDEX
  • Back to Main INDEX
  • PREVIOUS
  • Skip to PREVIOUS Message
  • NEXT
  • Skip to NEXT Message
  • LIST
  • Reply to LIST Regarding this Message
  • SENDER
  • Reply to SENDER Regarding this Message
    Time: 05:05:09 AM PST US
    From: "A. Dennis Savarese" <adsavar@gte.net>
    Subject: Re: Oil Bottle Cap
    --> Yak-List message posted by: "A. Dennis Savarese" <adsavar@gte.net> I seriously doubt you will ever see it in the oil screen Stuart. That entire orifice is smaller in diameter than the oil cap. If it were my airplane I would bite the bullet and remove the oil tank to remove the oil cap. If it positions itself within the oil line, you could have a much more serious problem. Dennis ----- Original Message ----- From: "Stuart Mackereth" <stuart@bramptonyork.com> Subject: Yak-List: Oil Bottle Cap > --> Yak-List message posted by: "Stuart Mackereth" <stuart@bramptonyork.com> > > Hi all > > Yesterday a co-owner of a yak52 accidentally dropped the plastic oil cap > seal from a bottle of W100 into the oil tank, and by the time he managed > to grab a wire to try scoup it out, it had sunk. Our local technician > reckoned it aint a problem, and will not melt (at 50-65deg), and will > end up in the oil filter before long. He reckons keep flying and look > for it at our next inspection... Being a bit nervous, thought I'd check > online for opinions here first. Thanks! > > Stuart > >


    Message 5


  • INDEX
  • Back to Main INDEX
  • PREVIOUS
  • Skip to PREVIOUS Message
  • NEXT
  • Skip to NEXT Message
  • LIST
  • Reply to LIST Regarding this Message
  • SENDER
  • Reply to SENDER Regarding this Message
    Time: 05:20:22 AM PST US
    From: "Jeff Linebaugh" <jefflinebaugh@earthlink.net>
    Subject: Emergency Air Tank Filling
    --> Yak-List message posted by: "Jeff Linebaugh" <jefflinebaugh@earthlink.net> Walt, Thanks for taking my thinking one step further...its a great idea.... Here's what I plan to do.... 1. Fill depleted air tanks with Nitrogen (from external filler port). 2. Reset the air regulator to a slightly lower value (1/4 should do it..) and re-safety wire it. 3. Drain the Main Air Tank and fill refill with air, leaving the N2 in the Emergency Air Tank. (My experience has been much easier starting on air than N2...) 4. go Fly! This should leave the N2 in the Emergency Air Tank, hopefully reducing the possibilities of corrosion. I understand that the 52 emergency bottle will not recharge from the compressor...perhaps the corrosion problem is why they designed it this way. Personally, I like being able to charge both systems airborne...but resetting the regulator after filling the emergency system should accomplish the same thing! Thanks Walt! Jeff Linebaugh jefflinebaugh@earthlink.net


    Message 6


  • INDEX
  • Back to Main INDEX
  • PREVIOUS
  • Skip to PREVIOUS Message
  • NEXT
  • Skip to NEXT Message
  • LIST
  • Reply to LIST Regarding this Message
  • SENDER
  • Reply to SENDER Regarding this Message
    Time: 05:20:26 AM PST US
    From: "Janet Davidson" <gbvfx@hotmail.com>
    Subject: Bikes
    --> Yak-List message posted by: "Janet Davidson" <gbvfx@hotmail.com> Lou This is the website I found on a cold, boring Friday afternoon ;) www.changjiang750.com This is from the "China Daily" "Besides, there's no shortage of Harley Davidson's in the US, but a Chinese Chang Jiang -- a brand born in late 1950s in Nanchang of Jiangxi Province -- is a rare sight overseas." Have fun! Janet Ph: 920 232 9238 email: gbvfx@hotmail.com http://www.msn.co.uk/messenger


    Message 7


  • INDEX
  • Back to Main INDEX
  • PREVIOUS
  • Skip to PREVIOUS Message
  • NEXT
  • Skip to NEXT Message
  • LIST
  • Reply to LIST Regarding this Message
  • SENDER
  • Reply to SENDER Regarding this Message
    Time: 05:31:24 AM PST US
    From: "A. Dennis Savarese" <adsavar@gte.net>
    Subject: Re: Emergency Air Tank Filling
    --> Yak-List message posted by: "A. Dennis Savarese" <adsavar@gte.net> Thanks for the explanation Jeff. Dennis ----- Original Message ----- From: "Jeff Linebaugh" <jefflinebaugh@earthlink.net> Subject: Yak-List: Emergency Air Tank Filling > --> Yak-List message posted by: "Jeff Linebaugh" <jefflinebaugh@earthlink.net> > > Walt, > > Thanks for taking my thinking one step further...its a great idea.... > > Here's what I plan to do.... > > 1. Fill depleted air tanks with Nitrogen (from external filler port). > 2. Reset the air regulator to a slightly lower value (1/4 should do it..) > and re-safety wire it. > 3. Drain the Main Air Tank and fill refill with air, leaving the N2 in the > Emergency Air Tank. (My experience has been much easier starting on air > than N2...) > 4. go Fly! > > This should leave the N2 in the Emergency Air Tank, hopefully reducing the > possibilities of corrosion. > > I understand that the 52 emergency bottle will not recharge from the > compressor...perhaps the corrosion problem is why they designed it this way. > Personally, I like being able to charge both systems airborne...but > resetting the regulator after filling the emergency system should accomplish > the same thing! > > Thanks Walt! > > Jeff Linebaugh > jefflinebaugh@earthlink.net > >


    Message 8


  • INDEX
  • Back to Main INDEX
  • PREVIOUS
  • Skip to PREVIOUS Message
  • NEXT
  • Skip to NEXT Message
  • LIST
  • Reply to LIST Regarding this Message
  • SENDER
  • Reply to SENDER Regarding this Message
    Time: 05:45:47 AM PST US
    From: Aubrey Price <aprice@vartec.net>
    Subject: Emergency Air Tank Filling
    --> Yak-List message posted by: Aubrey Price <aprice@vartec.net> You should check with the expert( A. Dennis ), I could be wrong, but my YAK52 recharges both bottles from the compressor. -----Original Message----- From: Jeff Linebaugh [mailto:jefflinebaugh@earthlink.net] Subject: Yak-List: Emergency Air Tank Filling --> Yak-List message posted by: "Jeff Linebaugh" <jefflinebaugh@earthlink.net> Walt, Thanks for taking my thinking one step further...its a great idea.... Here's what I plan to do.... 1. Fill depleted air tanks with Nitrogen (from external filler port). 2. Reset the air regulator to a slightly lower value (1/4 should do it..) and re-safety wire it. 3. Drain the Main Air Tank and fill refill with air, leaving the N2 in the Emergency Air Tank. (My experience has been much easier starting on air than N2...) 4. go Fly! This should leave the N2 in the Emergency Air Tank, hopefully reducing the possibilities of corrosion. I understand that the 52 emergency bottle will not recharge from the compressor...perhaps the corrosion problem is why they designed it this way. Personally, I like being able to charge both systems airborne...but resetting the regulator after filling the emergency system should accomplish the same thing! Thanks Walt! Jeff Linebaugh jefflinebaugh@earthlink.net


    Message 9


  • INDEX
  • Back to Main INDEX
  • PREVIOUS
  • Skip to PREVIOUS Message
  • NEXT
  • Skip to NEXT Message
  • LIST
  • Reply to LIST Regarding this Message
  • SENDER
  • Reply to SENDER Regarding this Message
    Time: 06:18:06 AM PST US
    From: Brian Lloyd <brian@lloyd.com>
    Subject: Re: CJ Air Tanks
    --> Yak-List message posted by: Brian Lloyd <brian@lloyd.com> A. Dennis Savarese wrote: > The point about the using Nitrogen to fill just the emergency side was > somewhat confusing if both the main and emergency side were filled > simultaneously from the external air fill port. Does the CJ have a separate > pressure relief valve for each system (main and emergency)? No. The fill port fills both systems. > If not, how > does one put only compressed air into the main air system when the main > system is completely empty. Not necessary. > Pure N2 in an empty main air system will cause > a lot of heartburn when attempting to start the engine. If the timing of the air distributor is set properly you can start a CJ just fine on pure N2. I have done it with several CJs with nary a starting problem. Here is a thought experiment: what happens to the mixture in the cylinder if you inject air into it to turn the engine over? Seems it would get too lean to burn and thus that cylinder won't fire anyway, therefore starting the engine is independent of what gas you inject with the starting system. Yes, you can fill the pneumatic system with dry N2 without any problems but we have had this discussion before. -- 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)


    Message 10


  • INDEX
  • Back to Main INDEX
  • PREVIOUS
  • Skip to PREVIOUS Message
  • NEXT
  • Skip to NEXT Message
  • LIST
  • Reply to LIST Regarding this Message
  • SENDER
  • Reply to SENDER Regarding this Message
    Time: 06:31:08 AM PST US
    From: "jay reiter" <jmreiter@adelphia.net>
    Subject: CJ emergency bottle charge
    --> Yak-List message posted by: "jay reiter" <jmreiter@adelphia.net> You will fill the emergency bottle only if you have the main air valve shut off when you charge the system no nead to waste the N2 filling the main.


    Message 11


  • INDEX
  • Back to Main INDEX
  • PREVIOUS
  • Skip to PREVIOUS Message
  • NEXT
  • Skip to NEXT Message
  • LIST
  • Reply to LIST Regarding this Message
  • SENDER
  • Reply to SENDER Regarding this Message
    Time: 06:55:14 AM PST US
    From: Brian Lloyd <brian@lloyd.com>
    Subject: Re: CJ emergency bottle charge
    --> Yak-List message posted by: Brian Lloyd <brian@lloyd.com> jay reiter wrote: > You will fill the emergency bottle only if you have the main air > valve shut off when you charge the system no nead to waste the N2 > filling the main. Good point. You put N2 into the system but it doesn't get to the main air tank. -- 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)


    Message 12


  • INDEX
  • Back to Main INDEX
  • PREVIOUS
  • Skip to PREVIOUS Message
  • NEXT
  • Skip to NEXT Message
  • LIST
  • Reply to LIST Regarding this Message
  • SENDER
  • Reply to SENDER Regarding this Message
    Time: 07:13:04 AM PST US
    From: "A. Dennis Savarese" <adsavar@gte.net>
    Subject: Re: CJ Air Tanks
    --> Yak-List message posted by: "A. Dennis Savarese" <adsavar@gte.net> Yes, we all have had this discussion before. Therefore I will leave it alone and let everyone make their own decision on whether to use N2. Dennis ----- Original Message ----- From: "Brian Lloyd" <brian@lloyd.com> Subject: Re: Yak-List: CJ Air Tanks > --> Yak-List message posted by: Brian Lloyd <brian@lloyd.com> > > A. Dennis Savarese wrote: > > The point about the using Nitrogen to fill just the emergency side was > > somewhat confusing if both the main and emergency side were filled > > simultaneously from the external air fill port. Does the CJ have a separate > > pressure relief valve for each system (main and emergency)? > > No. The fill port fills both systems. > > > If not, how > > does one put only compressed air into the main air system when the main > > system is completely empty. > > Not necessary. > > > Pure N2 in an empty main air system will cause > > a lot of heartburn when attempting to start the engine. > > If the timing of the air distributor is set properly you can start a CJ > just fine on pure N2. I have done it with several CJs with nary a > starting problem. > > Here is a thought experiment: what happens to the mixture in the > cylinder if you inject air into it to turn the engine over? Seems it > would get too lean to burn and thus that cylinder won't fire anyway, > therefore starting the engine is independent of what gas you inject with > the starting system. > > Yes, you can fill the pneumatic system with dry N2 without any problems > but we have had this discussion before. > > -- > 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) > >


    Message 13


  • INDEX
  • Back to Main INDEX
  • PREVIOUS
  • Skip to PREVIOUS Message
  • NEXT
  • Skip to NEXT Message
  • LIST
  • Reply to LIST Regarding this Message
  • SENDER
  • Reply to SENDER Regarding this Message
    Time: 07:15:27 AM PST US
    From: "A. Dennis Savarese" <adsavar@gte.net>
    Subject: Re: CJ emergency bottle charge
    --> Yak-List message posted by: "A. Dennis Savarese" <adsavar@gte.net> OK for the CJ but not for YAK 52's. The main air valve has absolutely nothing to do with being able to fill or not fill the main air system. On or off, the main system will be filled either externally or with the compressor. Dennis ----- Original Message ----- From: "Brian Lloyd" <brian@lloyd.com> Subject: Re: Yak-List: CJ emergency bottle charge > --> Yak-List message posted by: Brian Lloyd <brian@lloyd.com> > > jay reiter wrote: > > > You will fill the emergency bottle only if you have the main air > > valve shut off when you charge the system no nead to waste the N2 > > filling the main. > > Good point. You put N2 into the system but it doesn't get to the main > air tank. > > -- > 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) > >


    Message 14


  • INDEX
  • Back to Main INDEX
  • PREVIOUS
  • Skip to PREVIOUS Message
  • NEXT
  • Skip to NEXT Message
  • LIST
  • Reply to LIST Regarding this Message
  • SENDER
  • Reply to SENDER Regarding this Message
    Time: 07:32:40 AM PST US
    From: "A. Dennis Savarese" <adsavar@gte.net>
    Subject: Re: Emergency Air Tank Filling
    --> Yak-List message posted by: "A. Dennis Savarese" <adsavar@gte.net> If it does, you've either got a modified system or a bad check valve on the left side of the T on the firewall. This is the check valve that goes to the external air fill port. However, if you don't have a Schraeder valve on the external air fill port, the air from the compressor will be dumping overboard whenever the compressor is running and without the Schraeder valve the main air system will not hold pressure and discharge completely. Dennis ----- Original Message ----- From: "Aubrey Price" <aprice@vartec.net> Subject: RE: Yak-List: Emergency Air Tank Filling > --> Yak-List message posted by: Aubrey Price <aprice@vartec.net> > > You should check with the expert( A. Dennis ), I could be wrong, but my > YAK52 recharges both bottles from the compressor. > > -----Original Message----- > From: Jeff Linebaugh [mailto:jefflinebaugh@earthlink.net] > To: yak-list@matronics. com > Subject: Yak-List: Emergency Air Tank Filling > > > --> Yak-List message posted by: "Jeff Linebaugh" > <jefflinebaugh@earthlink.net> > > Walt, > > Thanks for taking my thinking one step further...its a great idea.... > > Here's what I plan to do.... > > 1. Fill depleted air tanks with Nitrogen (from external filler port). > 2. Reset the air regulator to a slightly lower value (1/4 should do it..) > and re-safety wire it. > 3. Drain the Main Air Tank and fill refill with air, leaving the N2 in the > Emergency Air Tank. (My experience has been much easier starting on air > than N2...) > 4. go Fly! > > This should leave the N2 in the Emergency Air Tank, hopefully reducing the > possibilities of corrosion. > > I understand that the 52 emergency bottle will not recharge from the > compressor...perhaps the corrosion problem is why they designed it this way. > Personally, I like being able to charge both systems airborne...but > resetting the regulator after filling the emergency system should accomplish > the same thing! > > Thanks Walt! > > Jeff Linebaugh > jefflinebaugh@earthlink.net > >


    Message 15


  • INDEX
  • Back to Main INDEX
  • PREVIOUS
  • Skip to PREVIOUS Message
  • NEXT
  • Skip to NEXT Message
  • LIST
  • Reply to LIST Regarding this Message
  • SENDER
  • Reply to SENDER Regarding this Message
    Time: 07:37:50 AM PST US
    From: KevLCo@aol.com
    Subject: Re: Oil Bottle Cap
    --> Yak-List message posted by: KevLCo@aol.com For what it's worth, I agree with brother Dennis. Why fly with known FOD in the tank? There's probably more time spent in a wash and wax job than removing the object from the tank..... and which one wins priority is up to the owner/operator, I guess.


    Message 16


  • INDEX
  • Back to Main INDEX
  • PREVIOUS
  • Skip to PREVIOUS Message
  • NEXT
  • Skip to NEXT Message
  • LIST
  • Reply to LIST Regarding this Message
  • SENDER
  • Reply to SENDER Regarding this Message
    Time: 07:42:51 AM PST US
    Subject: Re: CJ6A cruising at 300 Kph
    From: Dave Laird <dave@davelaird.com>
    --> Yak-List message posted by: Dave Laird <dave@davelaird.com> On Sunday, January 11, 2004, at 08:30 AM, Brian Lloyd wrote: > --> Yak-List message posted by: Brian Lloyd <brian@lloyd.com> > > Janet Davidson wrote: > >> In the article, the author mentions cruising, low level, at 300kph. >> I read >> through the article a number of times, but didn't see any reference >> to an >> M14P, so is my Nanchang just very slow, or does the author have a bit >> of the >> 'gift of the gab' in him? > > 300 Kph is 187 mph or 163 Kts. I also suspect that he is referring to > TAS and not IAS. It is also possible that he has a static system leak > that will cause his ASI to indicate high thus causing TAS to be higher > than actual. Still, at full power I suspect that a CJ6A will reach > close to this speeds down low. I don't expect many people to want to > burn that much fuel to go an extra 10 knots but I think it is possible. > > BTW, for people who want to calibrate their ASI, I have an Excel > spreadsheet that accepts three GPS ground-track/groundspeed inputs and > outputs TAS and wind velocity. If you then work TAS backward to get > CAS > you can verify the accuracy of your ASI. I have done this for every > aircraft I have flown and found the results very interesting. > > To use the spreadsheet just fly a triangle of three constant headings > while maintaining (and recording) IAS, OAT, and the track/groundspeed > from your GPS. Do this at several indicated airspeeds and > configurations in order to create a calibration card. You can do it > all > in one hop and then crunch the numbers on the ground. When done you > will know just how good your airspeed indicator is. > > In my CJ6A with no leaks in either the pitot or static systems I found > that the ASI was spot on at about 100 Kts (about 185 kph). At the low > speed end the ASI indicated progressively too high until it was about > 3-4 kts fast at stall. Likewise it indicated progressively too slow as > you went above 100 Kts. I think I posted my IAS/CAS correction card > info a couple of years back. > > -- > 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) > > > _- > ======================================================================= > _- > ======================================================================= > _- > ======================================================================= > _- > ======================================================================= > > > >


    Message 17


  • INDEX
  • Back to Main INDEX
  • PREVIOUS
  • Skip to PREVIOUS Message
  • NEXT
  • Skip to NEXT Message
  • LIST
  • Reply to LIST Regarding this Message
  • SENDER
  • Reply to SENDER Regarding this Message
    Time: 09:40:57 AM PST US
    From: "Richard Goode" <Richard.Goode@russianaeros.com>
    Subject: Oil bottle cap
    RM_rb_BREAK 0.00, RM_rb_DIV 0.00, RM_rb_FONT 0.00, RM_rb_HTML 0.00, RM_rb_PARA 0.00) --> Yak-List message posted by: "Richard Goode" <Richard.Goode@russianaeros.com> Dear Stuart Oil bottle cap Do not go on flying with the oil bottle "ring" in the tank. It can easily block the oil supply. You might be lucky to fish it out with a bent wire; otherwise you will need to take off the side plate from the tank. In passing an 18T customer of ours almost ruined his engine by flying with low pressure - we found eleven of the rings in the oil tank! Best regards Richard Richard Goode Aerobatics Newport House Almeley Hereford HR3 6LL Tel: +44 (0) 1544 322200 Fax:+44 (0) 1544 322208 www.russianaeros.com This message has been scanned for viruses and dangerous content by the http://www.anti84787.com MailScanner, and is believed to be clean.


    Message 18


  • INDEX
  • Back to Main INDEX
  • PREVIOUS
  • Skip to PREVIOUS Message
  • NEXT
  • Skip to NEXT Message
  • LIST
  • Reply to LIST Regarding this Message
  • SENDER
  • Reply to SENDER Regarding this Message
    Time: 06:50:07 PM PST US
    From: "Walt Lannon" <lannon@look.ca>
    Subject: Re: Emergency Air Tank Filling
    --> Yak-List message posted by: "Walt Lannon" <lannon@look.ca> Jeff; This list is great. I gave you some bum info. on the CJ charge circuit but Jay picked it up. He is absolutely correct - just charge with the main valve closed to fill the emerg. tank. Thanks Jay Walt ----- Original Message ----- From: "Jeff Linebaugh" <jefflinebaugh@earthlink.net> Subject: Yak-List: Emergency Air Tank Filling > --> Yak-List message posted by: "Jeff Linebaugh" <jefflinebaugh@earthlink.net> > > Walt, > > Thanks for taking my thinking one step further...its a great idea.... > > Here's what I plan to do.... > > 1. Fill depleted air tanks with Nitrogen (from external filler port). > 2. Reset the air regulator to a slightly lower value (1/4 should do it..) > and re-safety wire it. > 3. Drain the Main Air Tank and fill refill with air, leaving the N2 in the > Emergency Air Tank. (My experience has been much easier starting on air > than N2...) > 4. go Fly! > > This should leave the N2 in the Emergency Air Tank, hopefully reducing the > possibilities of corrosion. > > I understand that the 52 emergency bottle will not recharge from the > compressor...perhaps the corrosion problem is why they designed it this way. > Personally, I like being able to charge both systems airborne...but > resetting the regulator after filling the emergency system should accomplish > the same thing! > > Thanks Walt! > > Jeff Linebaugh > jefflinebaugh@earthlink.net > >




    Other Matronics Email List Services

  • Post A New Message
  •   yak-list@matronics.com
  • UN/SUBSCRIBE
  •   http://www.matronics.com/subscription
  • List FAQ
  •   http://www.matronics.com/FAQ/Yak-List.htm
  • Full Archive Search Engine
  •   http://www.matronics.com/search
  • 7-Day List Browse
  •   http://www.matronics.com/browse/yak-list
  • Browse Yak-List Digests
  •   http://www.matronics.com/digest/yak-list
  • Browse Other Lists
  •   http://www.matronics.com/browse
  • Live Online Chat!
  •   http://www.matronics.com/chat
  • Archive Downloading
  •   http://www.matronics.com/archives
  • Photo Share
  •   http://www.matronics.com/photoshare
  • Other Email Lists
  •   http://www.matronics.com/emaillists
  • Contributions
  •   http://www.matronics.com/contributions

    These Email List Services are sponsored solely by Matronics and through the generous Contributions of its members.

    -- Please support this service by making your Contribution today! --