---------------------------------------------------------- Yak-List Digest Archive --- Total Messages Posted Sun 09/24/17: 10 ---------------------------------------------------------- Today's Message Index: ---------------------- 1. 01:55 AM - YAK 52 - Procedure for emergency gear down (Jean-Philippe Martel) 2. 03:52 AM - Re: YAK 52 - Procedure for emergency gear down (Nigel Willson) 3. 04:04 AM - Re: YAK 52 - Procedure for emergency gear down (A. Dennis Savarese) 4. 04:13 AM - Re: YAK 52 - Procedure for emergency gear down (A. Dennis Savarese) 5. 05:42 AM - Re: YAK 52 - Procedure for emergency gear down (Jean-Philippe Martel) 6. 06:07 AM - Re: YAK 52 - Procedure for emergency gear down (Ernest Martinez) 7. 09:43 AM - Re: YAK 52 - Procedure for emergency gear down (A. Dennis Savarese) 8. 09:50 AM - Re: YAK 52 - Procedure for emergency gear down (A. Dennis Savarese) 9. 10:33 AM - Re: YAK 52 - Procedure for emergency gear down (Walter Lannon) 10. 02:35 PM - Re: YAK 52 - Procedure for emergency gear down (A. Dennis Savarese) ________________________________ Message 1 _____________________________________ Time: 01:55:05 AM PST US From: Jean-Philippe Martel Subject: Yak-List: YAK 52 - Procedure for emergency gear down Hi! Could any YAK 52 driver kindly remind me the official emergency procedure to gear down in case of full pressure loss in the normal circuit, please? Thank you in advance! =F0=9F=98=8A Marty France ________________________________ Message 2 _____________________________________ Time: 03:52:13 AM PST US Subject: Re: Yak-List: YAK 52 - Procedure for emergency gear down From: Nigel Willson Qm90aCBnZWFyIHNlbGVjdG9ycyB0byBuZXV0cmFsLiBPcGVuIGVtZXJnZW5jeSBhaXIgdmFsdmUu IERvIG5vdCB1c2UgZmxhcHMgc2luY2UgdGhpcyB3aWxsIHVzZSBlbWVyZ2VuY3kgYWlyIHRoYXQg Y291bGQgYmUgdXNlZCBmb3IgYnJha2luZy4KCgpSZWdhcmRzLAoKCgoKTmlnZWwgV2lsbHNvbgpG bHlpbmcgSW5zdHJ1Y3RvciAmIEV4YW1pbmVyIHwgQWlyc2hvdyBPcmdhbmlzZXIgfCBEaXNwbGF5 IFBpbG90aHR0cDovL3lha2Rpc3BsYXkuIGNvbVRlbC4gMDc4MDkgMTE2Njc2ClNlbnQgZnJvbSBt eSBTYW1zdW5nIEdhbGF4eSBTNyAtIHBvd2VyZWQgYnkgVGhyZWUKLS0tLS0tLS0gT3JpZ2luYWwg bWVzc2FnZSAtLS0tLS0tLUZyb206IEplYW4tUGhpbGlwcGUgTWFydGVsIDxtYXJ0eS5qcG1AZ21h aWwuY29tPiBEYXRlOiAyNC8wOS8yMDE3ICAwOTo1MSAgKEdNVCswMDowMCkgVG86IHlhay1saXN0 QG1hdHJvbmljcy5jb20gU3ViamVjdDogWWFrLUxpc3Q6IFlBSyA1MiAtIFByb2NlZHVyZSBmb3Ig ZW1lcmdlbmN5IGdlYXIgZG93biAKSGkhCkNvdWxkIGFueSBZQUsgNTIgZHJpdmVyIGtpbmRseSBy ZW1pbmQgbWUgdGhlIG9mZmljaWFsIGVtZXJnZW5jeSBwcm9jZWR1cmUgdG8gZ2VhciBkb3duIGlu IGNhc2Ugb2YgZnVsbCBwcmVzc3VyZSBsb3NzIGluIHRoZSBub3JtYWwgY2lyY3VpdCwgcGxlYXNl PwpUaGFuayB5b3UgaW4gYWR2YW5jZSEg8J+YigpNYXJ0eUZyYW5jZQoK ________________________________ Message 3 _____________________________________ Time: 04:04:32 AM PST US From: "A. Dennis Savarese" Subject: Re: Yak-List: YAK 52 - Procedure for emergency gear down FYI - Flaps do not work from the emergency air system.=C2- If you doubt t his to be true, then test it the next time you have the airplane on jacks d oing a gear retraction/extension test when doing the emergency gear extensi on test. With the rear gear selector in the neutral position and the main air valve closed, once you place the front gear selector in neutral, all the residual air pressure in the system forward of the main air valve, is depleted.=C2 - Then open the emergency air valve to extend the gear.=C2- Now attempt to put the flaps down.=C2- Dennis From: Nigel Willson To: yak-list@matronics.com Sent: Sunday, September 24, 2017 6:52 AM Subject: Re: Yak-List: YAK 52 - Procedure for emergency gear down Both gear selectors to neutral. Open emergency air valve. Do not use flaps since this will use emergency air that could be used for braking. Regards, | Nigel WillsonFlying Instructor & Examiner | Airshow Organiser | Display P ilothttp://yakdisplay. comTel. 07809 116676 | Sent from my Samsung Galaxy S7 - powered by Three -------- Original message --------From: Jean-Philippe Martel Date: 24/09/2017 09:51 (GMT+00:00) To: yak-list@matronics.com Subje ct: Yak-List: YAK 52 - Procedure for emergency gear down Hi! Could any YAK 52 driver kindly remind me the official emergency procedure t o gear down in case of full pressure loss in the normal circuit, please? Thank you in advance! =F0=9F=98=8A MartyFrance ________________________________ Message 4 _____________________________________ Time: 04:13:35 AM PST US From: "A. Dennis Savarese" Subject: Re: Yak-List: YAK 52 - Procedure for emergency gear down I tried posting a copy of the Yak 52 POH to the Yak list, but Matronics rej ected it even though it was a .pdf file.=C2- I emailed the POH directly t o Marty since the procedure he was asking for is in the POH, (in case he do esn't have one).Dennis From: Jean-Philippe Martel To: yak-list@matronics.com Sent: Sunday, September 24, 2017 4:55 AM Subject: Yak-List: YAK 52 - Procedure for emergency gear down Hi! Could any YAK 52 driver kindly remind me the official emergency procedure t o gear down in case of full pressure loss in the normal circuit, please? Thank you in advance! =F0=9F=98=8A MartyFrance ________________________________ Message 5 _____________________________________ Time: 05:42:39 AM PST US From: Jean-Philippe Martel Subject: Re: Yak-List: YAK 52 - Procedure for emergency gear down Indeed I don't doubt =F0=9F=98=8A I already saw what you described. Back to the procedure in flight, the selectors on neutral position + activation of the emergency valve are enough to provoke the emergency gear down? Or does one have to pull down the front selector as well? Le 24 sept. 2017 13:06, "A. Dennis Savarese" a =C3=A9crit : > FYI - Flaps do not work from the emergency air system. If you doubt this > to be true, then test it the next time you have the airplane on jacks doi ng > a gear retraction/extension test when doing the emergency gear extension > test. > > With the rear gear selector in the neutral position and the main air valv e > closed, once you place the front gear selector in neutral, all the residu al > air pressure in the system forward of the main air valve, is depleted. > Then open the emergency air valve to extend the gear. Now attempt to put > the flaps down. > Dennis > > > ------------------------------ > *From:* Nigel Willson > *To:* yak-list@matronics.com > *Sent:* Sunday, September 24, 2017 6:52 AM > *Subject:* Re: Yak-List: YAK 52 - Procedure for emergency gear down > > Both gear selectors to neutral. Open emergency air valve. Do not use flap s > since this will use emergency air that could be used for braking. > > > *Regards,* > *Nigel Willson* > *Flying Instructor & Examiner | Airshow Organiser | Display Pilot* > http://yakdisplay. com > Tel. 07809 116676 > > Sent from my Samsung Galaxy S7 - powered by Three > > -------- Original message -------- > From: Jean-Philippe Martel > Date: 24/09/2017 09:51 (GMT+00:00) > To: yak-list@matronics.com > Subject: Yak-List: YAK 52 - Procedure for emergency gear down > > Hi! > > Could any YAK 52 driver kindly remind me the official emergency procedure > to gear down in case of full pressure loss in the normal circuit, please? > > Thank you in advance! =F0=9F=98=8A > > Marty > France > > ________________________________ Message 6 _____________________________________ Time: 06:07:33 AM PST US From: Ernest Martinez Subject: Re: Yak-List: YAK 52 - Procedure for emergency gear down On CJ, emergency air does supply flaps and brakes. Ernie On Sun, Sep 24, 2017 at 7:06 AM A. Dennis Savarese < dsavarese0812@bellsouth.net> wrote: > FYI - Flaps do not work from the emergency air system. If you doubt this > to be true, then test it the next time you have the airplane on jacks doi ng > a gear retraction/extension test when doing the emergency gear extension > test. > > With the rear gear selector in the neutral position and the main air valv e > closed, once you place the front gear selector in neutral, all the residu al > air pressure in the system forward of the main air valve, is depleted. > Then open the emergency air valve to extend the gear. Now attempt to put > the flaps down. > Dennis > > > ------------------------------ > *From:* Nigel Willson > *To:* yak-list@matronics.com > *Sent:* Sunday, September 24, 2017 6:52 AM > *Subject:* Re: Yak-List: YAK 52 - Procedure for emergency gear down > > Both gear selectors to neutral. Open emergency air valve. Do not use flap s > since this will use emergency air that could be used for braking. > > > *Regards,* > *Nigel Willson* > *Flying Instructor & Examiner | Airshow Organiser | Display Pilot* > http://yakdisplay. com > Tel. 07809 116676 > > Sent from my Samsung Galaxy S7 - powered by Three > > -------- Original message -------- > From: Jean-Philippe Martel > Date: 24/09/2017 09:51 (GMT+00:00) > To: yak-list@matronics.com > Subject: Yak-List: YAK 52 - Procedure for emergency gear down > > Hi! > > Could any YAK 52 driver kindly remind me the official emergency procedure > to gear down in case of full pressure loss in the normal circuit, please? > > Thank you in advance! =F0=9F=98=8A > > Marty > France > > ________________________________ Message 7 _____________________________________ Time: 09:43:38 AM PST US From: "A. Dennis Savarese" Subject: Re: Yak-List: YAK 52 - Procedure for emergency gear down Yes, that's true.=C2- But on the 52 it does not. Dennis From: Ernest Martinez To: yak-list@matronics.com Sent: Sunday, September 24, 2017 9:08 AM Subject: Re: Yak-List: YAK 52 - Procedure for emergency gear down On CJ, emergency air does supply flaps and brakes. Ernie On Sun, Sep 24, 2017 at 7:06 AM A. Dennis Savarese wrote: FYI - Flaps do not work from the emergency air system.=C2- If you doubt t his to be true, then test it the next time you have the airplane on jacks d oing a gear retraction/extension test when doing the emergency gear extensi on test. With the rear gear selector in the neutral position and the main air valve closed, once you place the front gear selector in neutral, all the residual air pressure in the system forward of the main air valve, is depleted.=C2 - Then open the emergency air valve to extend the gear.=C2- Now attempt to put the flaps down.=C2- Dennis From: Nigel Willson To: yak-list@matronics.com Sent: Sunday, September 24, 2017 6:52 AM Subject: Re: Yak-List: YAK 52 - Procedure for emergency gear down Both gear selectors to neutral. Open emergency air valve. Do not use flaps since this will use emergency air that could be used for braking. Regards, | Nigel WillsonFlying Instructor & Examiner | Airshow Organiser | Display P ilothttp://yakdisplay. comTel. 07809 116676 | Sent from my Samsung Galaxy S7 - powered by Three -------- Original message --------From: Jean-Philippe Martel Date: 24/09/2017 09:51 (GMT+00:00) To: yak-list@matronics.com Subje ct: Yak-List: YAK 52 - Procedure for emergency gear down Hi! Could any YAK 52 driver kindly remind me the official emergency procedure t o gear down in case of full pressure loss in the normal circuit, please? Thank you in advance! =F0=9F=98=8A MartyFrance ________________________________ Message 8 _____________________________________ Time: 09:50:28 AM PST US From: "A. Dennis Savarese" Subject: Re: Yak-List: YAK 52 - Procedure for emergency gear down No, you do not move the gear selector after you place it in neutral.=C2- The emergency air system is designed to extend the gear without the movemen t of the front gear selector.=C2- The emergency system is totally indepen dent of the main air system and the gear selectors. After you have extended the gear with the emergency system, th time to move the front gear selector back to the DOWN position is after you have parked the airplane and shut the engine down.Dennis=C2- From: Jean-Philippe Martel To: yak-list@matronics.com Sent: Sunday, September 24, 2017 8:43 AM Subject: Re: Yak-List: YAK 52 - Procedure for emergency gear down Indeed I don't doubt =C2-=F0=9F=98=8A I already saw what you described. Back to the procedure in flight, the selectors on neutral position + activa tion of the emergency valve are enough to provoke the emergency gear down? Or does one have to pull down the front selector as well? Le=C2-24 sept. 2017 13:06, "A. Dennis Savarese" a =C3=A9crit=C2-: FYI - Flaps do not work from the emergency air system.=C2- If you doubt t his to be true, then test it the next time you have the airplane on jacks d oing a gear retraction/extension test when doing the emergency gear extensi on test. With the rear gear selector in the neutral position and the main air valve closed, once you place the front gear selector in neutral, all the residual air pressure in the system forward of the main air valve, is depleted.=C2 - Then open the emergency air valve to extend the gear.=C2- Now attempt to put the flaps down.=C2- Dennis From: Nigel Willson To: yak-list@matronics.com Sent: Sunday, September 24, 2017 6:52 AM Subject: Re: Yak-List: YAK 52 - Procedure for emergency gear down Both gear selectors to neutral. Open emergency air valve. Do not use flaps since this will use emergency air that could be used for braking. Regards, | Nigel WillsonFlying Instructor & Examiner | Airshow Organiser | Display P ilothttp://yakdisplay. comTel. 07809 116676 | Sent from my Samsung Galaxy S7 - powered by Three -------- Original message --------From: Jean-Philippe Martel Date: 24/09/2017 09:51 (GMT+00:00) To: yak-list@matronics.com Subje ct: Yak-List: YAK 52 - Procedure for emergency gear down Hi! Could any YAK 52 driver kindly remind me the official emergency procedure t o gear down in case of full pressure loss in the normal circuit, please? Thank you in advance! =F0=9F=98=8A MartyFrance ________________________________ Message 9 _____________________________________ Time: 10:33:30 AM PST US From: "Walter Lannon" Subject: Re: Yak-List: YAK 52 - Procedure for emergency gear down Hi Dennis; Is there some provision in the Yak 52 POH that prohibits movement of the ge ar selector to =9Cdown=9D after an emergency down operation? Of course every licensed and qualified CJ and Yak pilot thoroughly understa nds that the emergency gear down operation completely by-passes the gear se lectors and directs emerg. air directly to the down side of the actuators. They kn ow this due to their enormous diligence in understanding their aircraft! Moving the temporarily inoperable gear selector to the down postition is ca lled =9Cgood housekeeping=9D, probably because that is were it =99supposed to be during landing. Cheers; Walt From: A. Dennis Savarese Sent: Sunday, September 24, 2017 9:49 AM Subject: Re: Yak-List: YAK 52 - Procedure for emergency gear down No, you do not move the gear selector after you place it in neutral. The e mergency air system is designed to extend the gear without the movement of the front gear selector. The emergency system is totally independent of th e main air system and the gear selectors. After you have extended the gear with the emergency system, th time to move the front gear selector back to the DOWN position is after you have parked the airplane and shut the engine down. Dennis --------------------------------------------------------------------------- ----- From: Jean-Philippe Martel Sent: Sunday, September 24, 2017 8:43 AM Subject: Re: Yak-List: YAK 52 - Procedure for emergency gear down Indeed I don't doubt =F0=9F=98=8A I already saw what you described. Back to the procedure in flight, the selectors on neutral position + activa tion of the emergency valve are enough to provoke the emergency gear down? Or does one have to pull down the front selector as well? Le 24 sept. 2017 13:06, "A. Dennis Savarese" a =C3=A9crit : FYI - Flaps do not work from the emergency air system. If you doubt this to be true, then test it the next time you have the airplane on jacks doin g a gear retraction/extension test when doing the emergency gear extension test. With the rear gear selector in the neutral position and the main air valv e closed, once you place the front gear selector in neutral, all the residu al air pressure in the system forward of the main air valve, is depleted. Then open the emergency air valve to extend the gear. Now attempt to put t he flaps down. Dennis --------------------------------------------------------------------------- --- From: Nigel Willson To: yak-list@matronics.com Sent: Sunday, September 24, 2017 6:52 AM Subject: Re: Yak-List: YAK 52 - Procedure for emergency gear down Both gear selectors to neutral. Open emergency air valve. Do not use flap s since this will use emergency air that could be used for braking. Regards, Nigel Willson Flying Instructor & Examiner | Airsh3901238792082250297yiv221418967 7MsoNormal">http://yakdisplay. com Tel. 07809 116676 Sent from my Samsung Galaxy S7 - powered by Three -------- Original message -------- From: Jean-Philippe Martel Date: 24/09/2017 09:51 (GMT+00:00) To: yak-list@matronics.com Subject: Yak-List: YAK 52 - Procedure for emergency gear down Hi! Could any YAK 52 driver kindly remind me the official emergency procedure to gear down in case of full pressure loss in the normal circuit, please? Thank you in advance! =F0=9F=98=8A Marty France --- This email has been checked for viruses by Avast antivirus software. https://www.avast.com/antivirus ________________________________ Message 10 ____________________________________ Time: 02:35:44 PM PST US From: "A. Dennis Savarese" Subject: Re: Yak-List: YAK 52 - Procedure for emergency gear down Hi Walt,Actually, no there isn't any reason not to move the gear selector t o the down position.=C2- I prefer not to tell someone to go ahead and do it because you know how these highly qualified Yak and CJ pilots are..=C2 - They will say "well, Dennis told me I should put the gear selector down " when in actuality, all I would ever say is, "it doesn't matter".=C2-=C2 - The question that was posed on the Yak list was, "do I have to move the gear selector to the down position after I open the emergency air valve to get the gear to come down?"=C2- Now that type of question demonstrates t o you and I how highly qualified the person who asked the question is in hi s Yak or CJ. In my mind when there is a high stress situation in the cockpit, I like to emphasize the KISS method of doing things.=C2- You know, "keep it simple, stupid".=C2- If the pilot waits until he has taxied in and shuts down th e engine, then he can do his housekeeping without any undo stress.=C2- At least that is my way of thinking. All the best,Dennis From: Walter Lannon To: yak-list@matronics.com Sent: Sunday, September 24, 2017 1:34 PM Subject: Re: Yak-List: YAK 52 - Procedure for emergency gear down Hi Dennis;=C2-Is there some provision in the Yak 52 POH that prohibits mo vement of thegear selector to =9Cdown=9D after an emergency dow n operation?=C2-Of course every licensed and qualified CJ and Yak pilot t horoughlyunderstands that the emergency gear down operation completely by-p asses the gearselectorsand directs emerg. air directly to the down side of the actuators.=C2-They know this due to their enormous diligence in under standing theiraircraft!=C2-Moving the temporarily inoperable gear selecto r to the down postition iscalled =9Cgood housekeeping=9D,=C2- probably because that is were it =99supposed tobe during landing.=C2 -Cheers;WaltFrom: A. Dennis Savarese Sent: Sunday, September 24, 2017 9:4 9 AMTo: yak-list@matronics.com Subject: Re: Yak-List: YAK 52 - Procedure fo r emergency geardown=C2-No, you do not move the gearselector after you pl ace it in neutral.=C2- The emergency air system isdesigned to extend the gear without the movement of the front gearselector.=C2- The emergency sy stem is totally independent of the main airsystem and the gear selectors. =C2-After you have extended the gearwith the emergency system, th time to move the front gear selector back to theDOWN position is after you have pa rked the airplane and shut the enginedown.Dennis=C2- From: Jean-Philippe Martel To:yak-list@matronics.com Sent:Sunday, September 24, 2017 8:43 AM Subject: Re: Yak-List: YAK 52 - Procedurefor emergency gear down =C2-Indeed I don't doubt=C2- =F0=9F=98=8A Ialready saw what you describ ed.=C2-Back to the procedure in flight, the selectors on neutral position r down?Or does one have to pull down the front selector as well?=C2-Le 24 sept. 2017 13:06, "A. Dennis Savarese"a =C3 =A9crit : FYI - Flaps do not work from the emergency air system.=C2- If you doub t this to be true, then test it the next time you have the airplane on jack s doing a gear retraction/extension test when doing the emergency gear exte nsion test. =C2- With the rear gear selector in the neutral position and the main air valve closed, once you place the front gear selector in neutra l, all the residual air pressure in the system forward of the main air valv e, is depleted.=C2- Then open the emergency air valve to extend the gear. =C2- Now attempt to put the flaps down.=C2- Dennis From: Nigel Willson Sent: Sunday, September 24, 2017 6:52 AM Subject: Re: Yak-List: YAK 52 - Procedure for emergency gear down =C2- Both gear selectors to neutral. Open emergency air valve. Do not use flaps since this will use emergency air that could be used for braking . =C2- =C2- Regards, | Nigel Willson Flying Instructor & Examiner | Airsh3901238792082250297yiv 2214189677MsoNormal">http://yakdisplay. com Tel. 07809 116676 | =C2- Sent from my Samsung Galaxy S7 - powered by Three =C2- -------- Original message -------- From: Jean-Philippe Martel Date: 24/09/2017 09:51 (GMT+00:00) To: yak-list@matronics.com Subject: Yak-List: YAK 52 - Procedure for emergency gear down =C2- Hi! =C2- Cou ld any YAK 52 driver kindly remind me the official emergency procedure to g ear down in case of full pressure loss in the normal circuit,please? =C2- Thank you in advance! =F0=9F=98=8A =C2- Marty France =C2- | | Virus-free. www.avast.com | ------------------------------------------------------------------------------------- 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.