---------------------------------------------------------- Yak-List Digest Archive --- Total Messages Posted Mon 06/27/11: 30 ---------------------------------------------------------- Today's Message Index: ---------------------- 1. 12:06 AM - Re: Housai supercharger (Nanchang CJ6) 2. 12:08 AM - Re: CJ-6 Attitude Indicator (Nanchang CJ6) 3. 12:18 AM - Re: US nose wheel conversion for CJ (Nanchang CJ6) 4. 12:38 AM - Re: Project for sale (Nanchang CJ6) 5. 04:58 AM - Re: Off Field Landing Doug and Kath Sapp () 6. 06:02 AM - Doug and Kathleen Sapp (Jill Gernetzke) 7. 06:04 AM - Re: Re: Off Field Landing Doug and Kath Sapp (Roger Kemp M.D.) 8. 06:07 AM - 07:03 AM - Re: Re: Mag coils (Brian Lloyd) (Jill Gernetzke) 9. 06:18 AM - Re: FW: Off Field Landing Doug and Kath Sapp (dabear) 10. 06:21 AM - Re: FW: Update on Doug and Kathleen Sapp (Roger Kemp M.D.) 11. 07:59 AM - Re: FW: Update on Doug and Kathleen Sapp (Genzlinger, Reade) 12. 08:20 AM - Re: Off Field Landing Doug and Kath Sapp (N642K) 13. 08:44 AM - Re: Off Field Landing Doug and Kath Sapp (A. Dennis Savarese) 14. 08:58 AM - Re: Doug and Kathleen Sapp (Kregg Victory) 15. 08:58 AM - Re: Off Field Landing Doug and Kath Sapp (David Jester) 16. 11:10 AM - Re: 07:03 AM - Re: Re: Mag coils (Brian Lloyd) (Brian Lloyd) 17. 11:24 AM - Re: FW: Update on Doug and Kathleen Sapp (Brian Lloyd) 18. 02:56 PM - Re: Off Field Landing Doug and Kath Sapp (CD 2.0) 19. 05:02 PM - Re: Update on Doug and Kathleen Sapp (Dennis Nickson) 20. 06:24 PM - Re: Doug and Kathleen Sapp (Mike Bell) 21. 06:24 PM - Re: FW: Update on Doug and Kathleen Sapp (Bill Geipel) 22. 06:39 PM - G Tolerance and Hydration (Roger Kemp M.D.) 23. 06:50 PM - Re: G Tolerance and Hydration (cjpilot710@aol.com) 24. 07:03 PM - Re: FW: Update on Doug and Kathleen Sapp (Walter Lannon) 25. 08:05 PM - YAK 55 (Walt Murphy) 26. 08:42 PM - CJ-6A SS Exhaust (alikatz@mbay.net) 27. 09:19 PM - Re: G Tolerance and Hydration (keithmckinley) 28. 09:28 PM - Re: Re: G Tolerance and Hydration (Eric Wobschall) 29. 09:54 PM - Re: CJ-6A SS Exhaust (Kurt Howerton) 30. 10:17 PM - Re: FW: Update on Doug and Kathleen Sapp (Brian Lloyd) ________________________________ Message 1 _____________________________________ Time: 12:06:30 AM PST US Subject: Yak-List: Re: Housai supercharger From: "Nanchang CJ6" Our Chinese HS-6A radial engine is 285 HP. Sarah www.difane.cn -------- Sarah's E-mail:lcdzkj@live.cn Read this topic online here: http://forums.matronics.com/viewtopic.php?p=344199#344199 ________________________________ Message 2 _____________________________________ Time: 12:08:31 AM PST US Subject: Yak-List: Re: CJ-6 Attitude Indicator From: "Nanchang CJ6" Yes, we have almost all the Cj-6A parts in China. Please contact me if you are interested in it. Sarah www.difane.cn -------- Sarah's E-mail:lcdzkj@live.cn Read this topic online here: http://forums.matronics.com/viewtopic.php?p=344200#344200 ________________________________ Message 3 _____________________________________ Time: 12:18:50 AM PST US Subject: Yak-List: Re: US nose wheel conversion for CJ From: "Nanchang CJ6" I'm not sure if you are interested in our Chinese nose wheel version. Sarah -------- Sarah's E-mail:lcdzkj@live.cn Read this topic online here: http://forums.matronics.com/viewtopic.php?p=344201#344201 ________________________________ Message 4 _____________________________________ Time: 12:38:53 AM PST US Subject: Yak-List: Re: Project for sale From: "Nanchang CJ6" We have SBL-53 if you are interested in. Please see the picture. Sarah -------- Sarah's E-mail:lcdzkj@live.cn Read this topic online here: http://forums.matronics.com/viewtopic.php?p=344204#344204 Attachments: http://forums.matronics.com//files/sbl_53_926.jpg ________________________________ Message 5 _____________________________________ Time: 04:58:46 AM PST US From: Subject: Re: Yak-List: Off Field Landing Doug and Kath Sapp In our prayers. Steve & Donna ---- Tom Elliott wrote: > > Doug and Kath Sapp had a rough off field landing this morning near the Ryan > Ranch airport ( 2MT1) near West Glacier Mt. > They were in their Super Cub. Both are doing OK and are under testing in the > hospital. Hal Morley is with them. Hal said > they are bruised up and sore but NO broken bones. The plane was described as > totaled. Hal or Doug will send an update this > evening. > > > Tom & Nora Elliott > 777 Quartz Ave > PMB 7004 > Sandy Valley NV > 89019 > Tom cell 702-595-2680 > Nora cell 702-808-1316 > > > > > > > ________________________________ Message 6 _____________________________________ Time: 06:02:53 AM PST US From: "Jill Gernetzke" Subject: Yak-List: Doug and Kathleen Sapp We are wishing two of the finest people in the Yak community a quick and complete recovery. Jill M-14P, Inc. ________________________________ Message 7 _____________________________________ Time: 06:04:29 AM PST US From: "Roger Kemp M.D." Subject: RE: Yak-List: Re: Off Field Landing Doug and Kath Sapp Roger that. Doc -----Original Message----- From: owner-yak-list-server@matronics.com [mailto:owner-yak-list-server@matronics.com] On Behalf Of keithmckinley Sent: Sunday, June 26, 2011 11:09 PM Subject: Yak-List: Re: Off Field Landing Doug and Kath Sapp --> Best wishes for a speedy recovery! Keith -------- Keith McKinley 700HS KFIT Read this topic online here: http://forums.matronics.com/viewtopic.php?p=344190#344190 ________________________________ Message 8 _____________________________________ Time: 06:07:57 AM PST US From: "Jill Gernetzke" Subject: Yak-List: 07:03 AM - Re: Re: Mag coils (Brian Lloyd) Brian, There are/were plenty of people working on electronic ignition. We are intent to keep the engine operating as close to original as possible. The cost of electronic ignition is also a factor. We don't believe that the cost/benefit makes it worthwhile. Jill M-14P, Inc. ________________________________ Message 9 _____________________________________ Time: 06:18:07 AM PST US From: "dabear" Subject: RE: Yak-List: FW: Off Field Landing Doug and Kath Sapp Give Doug and Kathleen our best. They are in our family's prayers for a speedy recovery. Let us know if there is anything they need. Randy DeVere -----Original Message----- From: Tom Elliott [mailto:N13472@aol.com] Sent: Sunday, June 26, 2011 1:07 PM Cc: Hal Subject: Off Field Landing Doug and Kath Sapp Importance: High Doug and Kath Sapp had a rough off field landing this morning near the Ryan Ranch airport ( 2MT1) near West Glacier Mt. They were in their Super Cub. Both are doing OK and are under testing in the hospital. Hal Morley is with them. Hal said they are bruised up and sore but NO broken bones. The plane was described as totaled. Hal or Doug will send an update this evening. Tom & Nora Elliott 777 Quartz Ave PMB 7004 Sandy Valley NV 89019 Tom cell 702-595-2680 Nora cell 702-808-1316 ________________________________ Message 10 ____________________________________ Time: 06:21:51 AM PST US From: "Roger Kemp M.D." Subject: RE: Yak-List: FW: Update on Doug and Kathleen Sapp Hal, Thanks for the update. Good piloting skills and the good Lord smiled on them. The compression fractures will take some time to recover from to say the least. As long as they are stable and with no fragments compressing the canal would give them a minimum of 1 month to knit the fracture but 6 months for everything to settle down. They may have some degree of pain from this for a while if not life. Good news is they are still able to sit/stand in the vertical and take nourishment under their own power. Guess now's not a good time to ask Doug about those rocker box gaskets ect, Huh? :^)) God Speed Doug and Kathleen. Get well soon, Doc -----Original Message----- From: owner-yak-list-server@matronics.com [mailto:owner-yak-list-server@matronics.com] On Behalf Of Tom Elliott Sent: Sunday, June 26, 2011 11:07 PM yak-list-digest@matronics.com Subject: Yak-List: FW: Update on Doug and Kathleen Sapp -----Original Message----- From: Hal Morley [mailto:yakjock@gmail.com] Sent: Sunday, June 26, 2011 4:44 PM Cc: Lysandra Sapp; Methea Sapp Subject: Update on Doug and Kathleen Sapp Both are stable. Both have nearly identical back injuries with lower spine compression fractures, although Kathleen also suffered a broken rib. Both have concussions, Kathleen's a bit more severe and she is feeling nauseous. Recovery time estimated at 3-6 months wearing body/back braces. Cannot bend over during this time. Kathleen's brother has been staying with them so this should help out. Both also suffered some cuts and bruises. Doug is up and walking. They will stay either at the hospital or a nearby motel this evening as Laura's house is about 30 minutes away. Hopefully have them with us at Laura's for a bit before we get them back to Omak. NTSB should arrive this afternoon. Doug and Kathleen were flying their experimental Super Cub. Fuel was on, engine simply blew. Take off direction is level then rising field then heavy timber with falling terrain and some ponds. The only possibility was a small clearing to the right as Doug at 300-400' agl could not turn back. He picked two Birch trees to go between, was able to slow almost to stall before impacting the first tree with the right wing, then the second tree with the left wing (my sense is that the whiplash motion caused the injuries). Right wing departed and the plane ended up on its right side with the left wing pointing up. Two other pilots were there within minutes to help get them out. There was gas leaking but no fire. Great piloting and good luck. Hal Sent from my iPhone ________________________________ Message 11 ____________________________________ Time: 07:59:55 AM PST US Subject: RE: Yak-List: FW: Update on Doug and Kathleen Sapp From: "Genzlinger, Reade" I was at Ryan Field over the weekend and got to see Doug's nicely tricked out Super Cub - has a 4 blade prop and many of the STC mods. Ryan Field is right next to West Glacier and is a gem. Not all that difficult in terms of back country strips but the departure environment leaves very few options for recovery from an event such as Doug's. Pretty hostile terrain - so I commend Doug for survivable landing. Very impressive - and I too am thinking of and hoping for a most speedy recovery for Doug and Kathy. Reade Genzlinger Cairnwood Cooperative Corp. 215.914.0370 ________________________________ Message 12 ____________________________________ Time: 08:20:04 AM PST US Subject: Yak-List: Re: Off Field Landing Doug and Kath Sapp From: "N642K" Get well soon. You're in our prayers. Mike and Allyson DeCanio Texas Read this topic online here: http://forums.matronics.com/viewtopic.php?p=344252#344252 ________________________________ Message 13 ____________________________________ Time: 08:44:39 AM PST US From: "A. Dennis Savarese" Subject: Re: Yak-List: Off Field Landing Doug and Kath Sapp Doug and Kathleen are in our prayers. Two of THE finest people in the Yak/CJ community. Dennis and Paula Savarese A. Dennis Savarese 334-285-6263 334-546-8182 (cell) Skype: Yakguy1 www.yak-52.com On 6/27/2011 6:56 AM, dhanshew@cinci.rr.com wrote: > --> Yak-List message posted by: > > In our prayers. > > Steve& Donna > > ---- Tom Elliott wrote: >> --> Yak-List message posted by: "Tom Elliott" >> >> Doug and Kath Sapp had a rough off field landing this morning near the Ryan >> Ranch airport ( 2MT1) near West Glacier Mt. >> They were in their Super Cub. Both are doing OK and are under testing in the >> hospital. Hal Morley is with them. Hal said >> they are bruised up and sore but NO broken bones. The plane was described as >> totaled. Hal or Doug will send an update this >> evening. >> >> >> Tom& Nora Elliott >> 777 Quartz Ave >> PMB 7004 >> Sandy Valley NV >> 89019 >> Tom cell 702-595-2680 >> Nora cell 702-808-1316 >> >> >> >> >> >> >> > > ________________________________ Message 14 ____________________________________ Time: 08:58:07 AM PST US From: "Kregg Victory" Subject: RE: Yak-List: Doug and Kathleen Sapp Hope for a speedy recovery Doug and Kathleen!!!!!!!!!! Kregg Victory Aero LLC 2502 John Montgomery Dr. San Jose, CA 95148 408-836-5122 www.balancemyprop.com -----Original Message----- From: owner-yak-list-server@matronics.com [mailto:owner-yak-list-server@matronics.com] On Behalf Of alikatz@mbay.net Sent: Sunday, June 26, 2011 9:38 PM Subject: Re: Yak-List: FW: Update on Doug and Kathleen Sapp Tom & Hal, Thank you for the update, our thoughts and prayers are with them... Best Regards, Jim Selby Jr Quoting Tom Elliott : > > > -----Original Message----- > From: Hal Morley [mailto:yakjock@gmail.com] > Sent: Sunday, June 26, 2011 4:44 PM > To: Tom Elliott; David KingCJ6; byronmfox Fox > Cc: Lysandra Sapp; Methea Sapp > Subject: Update on Doug and Kathleen Sapp > > Both are stable. Both have nearly identical back injuries with lower spine > compression fractures, although Kathleen also suffered a broken rib. Both > have concussions, Kathleen's a bit more severe and she is feeling nauseous. > Recovery time estimated at 3-6 months wearing body/back braces. Cannot bend > over during this time. Kathleen's brother has been staying with them so > this should help out. > > Both also suffered some cuts and bruises. > > Doug is up and walking. They will stay either at the hospital or a nearby > motel this evening as Laura's house is about 30 minutes away. Hopefully have > them with us at Laura's for a bit before we get them back to Omak. > > NTSB should arrive this afternoon. > > Doug and Kathleen were flying their experimental Super Cub. Fuel was on, > engine simply blew. Take off direction is level then rising field then heavy > timber with falling terrain and some ponds. The only possibility was a > small clearing to the right as Doug at 300-400' agl could not turn back. He > picked two Birch trees to go between, was able to slow almost to stall > before impacting the first tree with the right wing, then the second tree > with the left wing (my sense is that the whiplash motion caused the > injuries). Right wing departed and the plane ended up on its right side with > the left wing pointing up. Two other pilots were there within minutes to > help get them out. There was gas leaking but no fire. > > Great piloting and good luck. > > Hal > > > Sent from my iPhone > > ________________________________ Message 15 ____________________________________ Time: 08:58:21 AM PST US From: David Jester Subject: Re: Yak-List: Off Field Landing Doug and Kath Sapp Ditto Sent from my iPhone On Jun 27, 2011, at 10:41 AM, "A. Dennis Savarese" wrote: > > Doug and Kathleen are in our prayers. Two of THE finest people in the Yak/CJ community. > > Dennis and Paula Savarese > > A. Dennis Savarese > 334-285-6263 > 334-546-8182 (cell) > Skype: Yakguy1 > www.yak-52.com > > > On 6/27/2011 6:56 AM, dhanshew@cinci.rr.com wrote: >> --> Yak-List message posted by: >> >> In our prayers. >> >> Steve& Donna >> >> ---- Tom Elliott wrote: >>> --> Yak-List message posted by: "Tom Elliott" >>> >>> Doug and Kath Sapp had a rough off field landing this morning near the Ryan >>> Ranch airport ( 2MT1) near West Glacier Mt. >>> They were in their Super Cub. Both are doing OK and are under testing in the >>> hospital. Hal Morley is with them. Hal said >>> they are bruised up and sore but NO broken bones. The plane was described as >>> totaled. Hal or Doug will send an update this >>> evening. >>> >>> >>> Tom& Nora Elliott >>> 777 Quartz Ave >>> PMB 7004 >>> Sandy Valley NV >>> 89019 >>> Tom cell 702-595-2680 >>> Nora cell 702-808-1316 >>> >>> >>> >>> >>> >>> >>> >> >> >> >> >> > > > > ________________________________ Message 16 ____________________________________ Time: 11:10:16 AM PST US Subject: Re: Yak-List: 07:03 AM - Re: Re: Mag coils (Brian Lloyd) From: Brian Lloyd On Mon, Jun 27, 2011 at 6:05 AM, Jill Gernetzke wrote: > Brian,**** > > ** ** > > There are/were plenty of people working on electronic ignition. > OK. > > **** > > ** ** > > We are intent to keep the engine operating as close to original as > possible. The cost of electronic ignition is also a factor. We don=92t > believe that the cost/benefit makes it worthwhile. > I understand. ROI is key. I haven't been there yet, hence the query. OTOH, it seems to me that it would be nice to be able to vary mag timing based on both RPM and MAP. As I recall the russian mags have neither while the chinese mags have only RPM (centrifugal) timing advance. Having both would be nice for high-altitude and/or low power cruising. But I understand that this is a small market and might require a larger one to make it worthwhile to deal the FAA. -- 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 17 ____________________________________ Time: 11:24:47 AM PST US Subject: Re: Yak-List: FW: Update on Doug and Kathleen Sapp From: Brian Lloyd On Sun, Jun 26, 2011 at 9:07 PM, Tom Elliott wrote: > The only possibility was a > small clearing to the right as Doug at 300-400' agl could not turn back. This is not a criticism of Doug but Hal's posting just reminded me of this. I have experimented with the turn-back maneuver in various different aircraft. I found that with some aircraft, turn back at 400agl is not only possible but provides comfortable margin. With others (most notably the Yak-52 and CJ6A) turn back is not possible from ANY altitude. (Turn-back to land downwind may be possible from some point after the beginning of the turn to crosswind and possibly in the turn to downwind in the CJ/YAK. I haven't practiced this ... yet.) (A stopped-prop helps immensely.) Bottom line: it is worth checking out with any airplane you fly. And if you know the appropriate altitudes, you can put them in your take-off go/no-go list. Mine has two: abort point on the runway and turn back point/altitude for singles. For gliders they are the turn-back point (downwind landing), abbreviated pattern point (midfield turn to land without running off the end), and normal turn-back point (from which a normal pattern can be completed). In a twin you have to also include the point in the take-off where you have enough altitude and airspeed to safely cage the dead engine and proceed single engine. Failure to reach that point means engine failure is the same as engine failure in a single -- you are going down. Period. I refer to the section of take off from the time I pass my runway abort point to the safe altitude/airspeed to proceed single-engine as the "dead zone". :-) -- 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 18 ____________________________________ Time: 02:56:23 PM PST US Subject: Yak-List: Re: Off Field Landing Doug and Kath Sapp From: "CD 2.0" I'm new to the Yak/Cj community and I haven't had the chance to get to know Doug and Kath but certainly I hope they recover very soon. Anybody know anything about the cause of the accident? Carl Read this topic online here: http://forums.matronics.com/viewtopic.php?p=344296#344296 ________________________________ Message 19 ____________________________________ Time: 05:02:32 PM PST US From: Dennis Nickson Subject: Re: Yak-List: Update on Doug and Kathleen Sapp Doug and Kath: Our best wishes for a quick and complete recovery. Sherry and Dennis Nickson Dennis A. Nickson, Broker # 777174 Nickson and Associates 2931 Boeing Road Cameron Park, CA. 95682 530 677-9760 office 530 677-1800 fax 530 957-9760 cell www.nickson.biz dennis@nickson.biz __I__ ______( * )______ o/ \o ________________________________ Message 20 ____________________________________ Time: 06:24:04 PM PST US Subject: Yak-List: Re: Doug and Kathleen Sapp From: "Mike Bell" Dittos. Get well soon! -------- Mike Bell Elk Grove, CA avbell2(at)comcastdotnet Read this topic online here: http://forums.matronics.com/viewtopic.php?p=344315#344315 ________________________________ Message 21 ____________________________________ Time: 06:24:04 PM PST US Subject: Re: Yak-List: FW: Update on Doug and Kathleen Sapp From: Bill Geipel What does caging the dead engine mean? If it's dead, you have lost the abili ty to Feather it haven't you? Doubtful that is windmilling at takeoff speed. Bill On Jun 27, 2011, at 1:22 PM, Brian Lloyd wrote: > On Sun, Jun 26, 2011 at 9:07 PM, Tom Elliott wrote: > The only possibility was a > small clearing to the right as Doug at 300-400' agl could not turn back. > > This is not a criticism of Doug but Hal's posting just reminded me of this . > > I have experimented with the turn-back maneuver in various different aircr aft. I found that with some aircraft, turn back at 400agl is not only possib le but provides comfortable margin. With others (most notably the Yak-52 and CJ6A) turn back is not possible from ANY altitude. (Turn-back to land downw ind may be possible from some point after the beginning of the turn to cross wind and possibly in the turn to downwind in the CJ/YAK. I haven't practiced this ... yet.) (A stopped-prop helps immensely.) > > Bottom line: it is worth checking out with any airplane you fly. And if yo u know the appropriate altitudes, you can put them in your take-off go/no-go list. Mine has two: abort point on the runway and turn back point/altitude f or singles. For gliders they are the turn-back point (downwind landing), abb reviated pattern point (midfield turn to land without running off the end), a nd normal turn-back point (from which a normal pattern can be completed). > > In a twin you have to also include the point in the take-off where you hav e enough altitude and airspeed to safely cage the dead engine and proceed si ngle engine. Failure to reach that point means engine failure is the same as engine failure in a single -- you are going down. Period. I refer to the se ction of take off from the time I pass my runway abort point to the safe alt itude/airspeed to proceed single-engine as the "dead zone". :-) > > > > -- > 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 22 ____________________________________ Time: 06:39:25 PM PST US From: "Roger Kemp M.D." Subject: Yak-List: G Tolerance and Hydration All, This is a topic I intended to present to the Red Star Rag for the summer edition but too many irons in the fire prevented getting the message out. Basically Summer is here. It is hot on the ramp and we are going to sweat. Remember to hydrate early and hydrate often. Beer, whiskey, coffee, tea, and soft drinks containing caffeine is not hydrating. They are dehydrating. In the summer sun you lose approximately 1 pound of water an hour. When you are walking across the ramp drinking a cool looking pint bottle of Desani or Avian for the first time of the day after being on the ramp for 3 hours you are behind the power curve already. Your blood volume is down 48 oz.(1500 mls), Slugging down that 16 oz. (~500 mls) of bottle of water walking to the jet for the first flight of the show you are behind. Now that bottle of water you just sucked down is going to take almost 45 minutes to be absorbed by your GI tract into your blood stream. The average 70 kg human has roughly 5 liters of blood volume (~ 160 oz.). So you are starting your routine in the heat roughly 48 oz or ~ 1500 mls down. With the water volume down in the vascular system, the blood is thicker and therefore it flows slower therefor it is harder for your heart to pump out of the extremities up to the brain under G. If your starting blood volume is down 1500 ml, you are starting your routine with an approximate 30% to 40% lower G tolerance than a hydrated pilot. So if your basic hydrated G tolerance is 6 to 7 Gs without experiencing gray out, a 30 to 40% loss of G tolerance due to dehydration means you are roughly a 5 G man now. Basically dehydration robs you of 1.5 to 2 G's after 3 to 4 hours in the sun on the ramp. Bottom line, stay in a cool shaded place as long as possible, drink water till you slosh, and if you are peeing yellow with a slight headache you are DRY (hypovolemic)and you are at risk for G lock. Doc ________________________________ Message 23 ____________________________________ Time: 06:50:03 PM PST US From: cjpilot710@aol.com Subject: Re: Yak-List: G Tolerance and Hydration EXCELLENT ADVISE DOC. THANKS In a message dated 6/27/2011 9:39:40 P.M. Eastern Daylight Time, viperdoc@mindspring.com writes: All, This is a topic I intended to present to the Red Star Rag for the summer edition but too many irons in the fire prevented getting the message out. Basically Summer is here. It is hot on the ramp and we are going to sweat . Remember to hydrate early and hydrate often. Beer, whiskey, coffee, tea, and soft drinks containing caffeine is not hydrating. They are dehydratin g. In the summer sun you lose approximately 1 pound of water an hour. When you are walking across the ramp drinking a cool looking pint bottle of De sani or Avian for the first time of the day after being on the ramp for 3 hour s you are behind the power curve already. Your blood volume is down 48 oz.(1500 mls), Slugging down that 16 oz. (~500 mls) of bottle of water walking to the jet for the first flight of the show you are behind. Now that bott le of water you just sucked down is going to take almost 45 minutes to be absorbed by your GI tract into your blood stream. The average 70 kg human has roughly 5 liters of blood volume (~ 160 oz.). So you are starting your routine in the heat roughly 48 oz or ~ 1500 mls down. With the water vol ume down in the vascular system, the blood is thicker and therefore it flows slower therefor it is harder for your heart to pump out of the extremitie s up to the brain under G. If your starting blood volume is down 1500 ml, you are starting your routine with an approximate 30% to 40% lower G tolerance than a hydrated pilot. So if your basic hydrated G tolerance is 6 to 7 Gs without experiencing gray out, a 30 to 40% loss of G tolerance due to dehydration means you ar e roughly a 5 G man now. Basically dehydration robs you of 1.5 to 2 G =99s after 3 to 4 hours in the sun on the ramp. Bottom line, stay in a cool shaded place as long as possible, drink water till you slosh, and if you are peeing yellow with a slight headache you are DRY (hypovolemic)and you are at risk for G lock. Doc ======================== ============ (http://www.matronics.com/Navigator?Yak-List) ======================== ============ ======================== ============ (http://www.matronics.com/contribution) ======================== ============ ________________________________ Message 24 ____________________________________ Time: 07:03:05 PM PST US From: Walter Lannon Subject: Re: Yak-List: FW: Update on Doug and Kathleen Sapp While I have no experience with light twin feathering systems I am sure feathering is available with a "dead" engine. It most certainly is in the larger twins and multi's. Oil pressure is porvided by a totally seperate, electrically driven, feathering pump. Some installations even include a seperate feathering oil supply. Whether the prop is windmilling or stopped it is producing a whole lot of undesireable drag Walt ----- Original Message ----- From: Bill Geipel To: yak-list@matronics.com Sent: Monday, June 27, 2011 6:20 PM Subject: Re: Yak-List: FW: Update on Doug and Kathleen Sapp What does caging the dead engine mean? If it's dead, you have lost the ability to Feather it haven't you? Doubtful that is windmilling at takeoff speed. Bill On Jun 27, 2011, at 1:22 PM, Brian Lloyd wrote: On Sun, Jun 26, 2011 at 9:07 PM, Tom Elliott wrote: The only possibility was a small clearing to the right as Doug at 300-400' agl could not turn back. This is not a criticism of Doug but Hal's posting just reminded me of this. I have experimented with the turn-back maneuver in various different aircraft. I found that with some aircraft, turn back at 400agl is not only possible but provides comfortable margin. With others (most notably the Yak-52 and CJ6A) turn back is not possible from ANY altitude. (Turn-back to land downwind may be possible from some point after the beginning of the turn to crosswind and possibly in the turn to downwind in the CJ/YAK. I haven't practiced this ... yet.) (A stopped-prop helps immensely.) Bottom line: it is worth checking out with any airplane you fly. And if you know the appropriate altitudes, you can put them in your take-off go/no-go list. Mine has two: abort point on the runway and turn back point/altitude for singles. For gliders they are the turn-back point (downwind landing), abbreviated pattern point (midfield turn to land without running off the end), and normal turn-back point (from which a normal pattern can be completed). In a twin you have to also include the point in the take-off where you have enough altitude and airspeed to safely cage the dead engine and proceed single engine. Failure to reach that point means engine failure is the same as engine failure in a single -- you are going down. Period. I refer to the section of take off from the time I pass my runway abort point to the safe altitude/airspeed to proceed single-engine as the "dead zone". :-) -- 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 25 ____________________________________ Time: 08:05:01 PM PST US From: Walt Murphy Subject: Yak-List: YAK 55 Does anyone have a condition inspection checklist for a YAK 55 that they could share? Thanks, Walt Murphy CJ6 A Reno,NV ________________________________ Message 26 ____________________________________ Time: 08:42:58 PM PST US From: alikatz@mbay.net Subject: Yak-List: CJ-6A SS Exhaust I have a gentleman looking to purchase a SS Exhaust System for the CJ-6A ( 285 h.p. ), would anyone happen to know who's producing/selling this system? Thank you, Best Regards Jim ________________________________ Message 27 ____________________________________ Time: 09:19:46 PM PST US Subject: Yak-List: Re: G Tolerance and Hydration From: "keithmckinley" Doc, Is there any benefit or detriment drinking gatorade or something similar? K -------- Keith McKinley 700HS KFIT Read this topic online here: http://forums.matronics.com/viewtopic.php?p=344351#344351 ________________________________ Message 28 ____________________________________ Time: 09:28:56 PM PST US Subject: Re: Yak-List: Re: G Tolerance and Hydration From: Eric Wobschall water On Jun 28, 2011, at 12:16 AM, keithmckinley wrote: > > Doc, > > Is there any benefit or detriment drinking gatorade or something similar? > > K > > -------- > Keith McKinley > 700HS > KFIT > > > > > Read this topic online here: > > http://forums.matronics.com/viewtopic.php?p=344351#344351 > > > > > > > > > > ________________________________ Message 29 ____________________________________ Time: 09:54:36 PM PST US Subject: Re: Yak-List: CJ-6A SS Exhaust From: Kurt Howerton Got mine from aircraftexhaust.com ________________________________________ Kurt "It" Howerton N923YK 530-312-1299 http://cj6.scitechsys.com http://www.baybombersquadron.com On Mon, Jun 27, 2011 at 8:39 PM, wrote: > > I have a gentleman looking to purchase a SS Exhaust System for the > CJ-6A ( 285 h.p. ), would anyone happen to know who's producing/selling this > system? Thank you, > > Best Regards > Jim > > ________________________________ Message 30 ____________________________________ Time: 10:17:40 PM PST US Subject: Re: Yak-List: FW: Update on Doug and Kathleen Sapp From: Brian Lloyd On Mon, Jun 27, 2011 at 6:20 PM, Bill Geipel wrote: > What does caging the dead engine mean? If it's dead, you have lost the > ability to Feather it haven't you? > No. A dead engine that is producing zero power is still providing a load on the windmilling propeller. If it is windmilling, you can feather it. If it is NOT turning you can't feather it but then, if it is not windmilling, it is producing much less drag anyway. A stalled airfoil is producing much less drag than an airfoil that is producing lift near the critical AoA. > Doubtful that is windmilling at takeoff speed. > Oh yes, it will windmill at takeoff speed! Try it in your Yak or CJ. Slow down to take-off speed and pull the throttle to idle. I betcha the prop keeps turning. If you aren't sure, turn the mags off for a couple of seconds. I promise you that the prop won't stop. -- Brian Lloyd, WB6RQN/J79BPL 3191 Western Dr. Cameron Park, CA 95682 brian@lloyd.com +1.767.617.1365 (Dominica) +1.916.877.5067 (USA) ------------------------------------------------------------------------------------- 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 Web Forum Interface To Lists http://forums.matronics.com Matronics List Wiki http://wiki.matronics.com Full Archive Search Engine http://www.matronics.com/search 7-Day List Browse http://www.matronics.com/browse/yak-list Browse 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/contribution ------------------------------------------------------------------------------------- These Email List Services are sponsored solely by Matronics and through the generous Contributions of its members.