---------------------------------------------------------- Yak-List Digest Archive --- Total Messages Posted Fri 11/21/14: 7 ---------------------------------------------------------- Today's Message Index: ---------------------- 0. 08:27 AM - [PLEASE READ] Why I Have A Fund Raiser... (Matt Dralle) 1. 05:45 AM - Re: Prop nut torque (Ernest Martinez) 2. 09:22 AM - Re: Real Pilot! (Bitterlich, Mark G CIV NAVAIR, WD) 3. 09:29 AM - Re: Real Pilot! (jblake207@comcast.net) 4. 01:47 PM - Re: Prop nut torque (Walter Lannon) 5. 02:50 PM - Re: Real Pilot! (Richard Hess) 6. 06:40 PM - Re: Prop nut torque (Vic) ________________________________ Message 0 _____________________________________ Time: 08:27:03 AM PST US From: Matt Dralle Subject: Yak-List: [PLEASE READ] Why I Have A Fund Raiser... Since the beginning, the Matronics List and Forum experience has been free from advertising. I have been approached by fair number of vendors wanting to tap into the large volume of activity across the various lists hosted here, but have always flatly refused. Everywhere you go on the Internet these days, a user is pummeled with flashing banners and videos and ads for crap that they don't want. Yahoo, Google and that elk are not "free". The user must constantly endure their barrage of commercialism thrust into their face at an ever increasing rate. Enough is enough, and the Lists at Matronics choose not to succumb to that. That being said, running a service of this size is not "free". It costs a lot of money to maintain the hardware, pay for the electricity, air conditioning, maintenance contracts, etc, etc. etc. I choose to hold a PBS-like fund raiser each year during the month of November where I simply send out a short email every other day asking the members to make a small contribution to support the operation. That being said, that contribution is completely voluntary and non-compulsory. Many members choose not to contribute and that's fine. However, a very modest percentage of the members do choose to make a contribution and it is that financial support that keeps the Lists running. And that's it. To my way of thinking, it is a much more pleasant way of maintaining the Lists and Forums. The other 11 months of the year, you don't see a single advertisement or request for support. That's refreshing and that is a List and Forum that I want to belong to. I think other people feel the same way. Won't you please take a minute to make your Contribution today and support these Lists? http://www.matronics.com/contribution Or, drop a personal check in the mail to: Matt Dralle / Matronics 581 Jeannie Way Livermore CA 94550 USA Thank you for your support! Matt Dralle Email List Admin. ________________________________ Message 1 _____________________________________ Time: 05:45:44 AM PST US Subject: Re: Yak-List: Prop nut torque From: Ernest Martinez Walt, The first place I looked was in the overhaul manual. I can see all the other torque values but none for the main nut. I see one cryptic entry which doesnt specify a torque value per se' but states: "Torque propellor housing nut to such extent that before installation of driving sleeve, rotation moment for each blade is 9.8 +- 2 N.M. during change from low pitch to high pitch. Ensure that torque difference between 2 nuts is not more than 2 N.M." I interpret this to mean, torque the nut to the point that the force to manually change the pitch is no more than 9.8 NM. But what other 2 nuts are they talking about? On Thu, Nov 20, 2014 at 10:46 PM, Ernest Martinez wrote: > Thank you! > > > On Thursday, November 20, 2014, Walter Lannon wrote: > >> 50 to 60 KGM or 370 to 430 lb/ft. It is in the Tech. Specs Manual, >> pg. 216. Of course it is also in the component overhaul manual which >> gives a much more detailed view of the propellor and many other parts of >> the aircraft. Doug has them. >> >> Walt >> >> *From:* Ernest Martinez >> *Sent:* Thursday, November 20, 2014 5:58 PM >> *To:* yak-list >> *Subject:* Yak-List: Prop nut torque >> >> can someone give me a definitive answer for the torque value for the mai n >> prop nut for the Housai prop. I have gotten values ranging from 250 to 7 50 >> ft lbs. and can you provide the source, since I cannot find it in the >> manual. >> >> * >> >> href="http://www.aeroelectric.com ">www.a eroelectric.com >> href="http://www.buildersbooks.com ">www .buildersbooks.com >> href="http://www.homebuilthelp.com ">www .homebuilthelp.com >> href="http://www.mypilotstore.com ">www.m ypilotstore.com >> href="http://www.mrrace.com ">www.mrrace.com >> href="http://www.matronics.com/contribution ">http://www.matronics.com/chref= "http://www.matronics.com/Navigator?Yak-List ">http://www.matronics.com/Navigator?Yak-List >> href="http://forums.matronics.com ">http: //forums.matronics.com >> >> * >> >> * >> =========== om> ildersbooks.com> p.com> .com> com/contribution> =========== onics.com/Navigator?Yak-List> =========== =========== >> >> * >> >> ________________________________ Message 2 _____________________________________ Time: 09:22:28 AM PST US From: "Bitterlich, Mark G CIV NAVAIR, WD" Subject: RE: Yak-List: Real Pilot! Outside of the A-6, one of the most effective ground support aircraft I have ever seen in action. Got a lot of respect for folks associated with them. They work down in the weeds, and do so with tremendous effect. Mark -----Original Message----- From: owner-yak-list-server@matronics.com [mailto:owner-yak-list-server@matronics.com] On Behalf Of Richard Hess Sent: Thursday, November 20, 2014 5:50 PM Subject: Re: Yak-List: Real Pilot! Yes, A-10 guys know all about CAS. Heck, we even lived in tents and ate MREs. Almost Grunts in Blue !!! Richard Hess President International Jets, Inc. Cell 404-964-4885 -----Original Message----- From: Bitterlich, Mark G CIV NAVAIR, WD, WD Sent: Thu, Nov 20, 2014 5:33 pm Subject: RE: Yak-List: Real Pilot! EXCUSE ME? What about "Frag Patterns?" What would an Air Force Flight Doc know about Close Air Support? Not burning you up here Doc, but leave Close Air Support to the Marines, unless you possibly are flying a Hog. Just saying Viper Doc. Mark ________________________________ From: owner-yak-list-server@matronics.com [owner-yak-list-server@matronics.com] on behalf of Roger Kemp [f16viperdoc@me.com] Sent: Thursday, November 20, 2014 2:14 PM Subject: Re: Yak-List: Real Pilot! Balls...need Em to root around in mud stirring tree limbs. Now Blade, let's talk Frag patterns. Doc Sent from my iPad On Nov 19, 2014, at 11:31 AM, jblake207@comcast.net > wrote: For the record, found out yesterday that Blitz is actually a real pilot... He flew the H-19, the HH-43 and both the CH-3B&C. I'll bet there were a few more aero-machines that he could add to the list. You Rock Blitz! JB ===========================ric www.aeroelec"http://www.buildersbooks.com" target="_blank">www.buildersbooks.com ________________________________ Message 3 _____________________________________ Time: 09:29:14 AM PST US From: jblake207@comcast.net Subject: Re: Yak-List: Real Pilot! "Hog" drivers can drink my whiskey anytime!=C2- Best at putting steal on target in a JAAT!=C2- JB ----- Original Message ----- From: "Mark G CIV NAVAIR Bitterlich, WD" Sent: Friday, November 21, 2014 11:21:54 AM Subject: RE: Yak-List: Real Pilot! itterlich@navy.mil> Outside of the A-6, one of the most effective ground support aircraft I hav e ever seen in action. =C2- Got a lot of respect for folks associated wit h them. =C2-They work down in the weeds, and do so with tremendous effect . Mark -----Original Message----- From: owner-yak-list-server@matronics.com [mailto:owner-yak-list-server@mat ronics.com] On Behalf Of Richard Hess Sent: Thursday, November 20, 2014 5:50 PM Subject: Re: Yak-List: Real Pilot! Yes, A-10 guys know all about CAS. Heck, we even lived in tents and ate MRE s. Almost Grunts in Blue !!! Richard Hess President International Jets, Inc. Cell 404-964-4885 -----Original Message----- From: Bitterlich, Mark G CIV NAVAIR, WD, WD Sent: Thu, Nov 20, 2014 5:33 pm Subject: RE: Yak-List: Real Pilot! EXCUSE ME? What about "Frag Patterns?" =C2- What would an Air Force Flight Doc know about Close Air Support? Not burning you up here Doc, but leave Close Air Support to the Marines, un less you possibly are flying a Hog. Just saying Viper Doc. Mark ________________________________ From: owner-yak-list-server@matronics.com [owner-yak-list-server@matronics. com] on behalf of Roger Kemp [f16viperdoc@me.com] Sent: Thursday, November 20, 2014 2:14 PM Subject: Re: Yak-List: Real Pilot! Balls...need Em to root around in mud stirring tree limbs. Now Blade, let's talk Frag patterns. Doc Sent from my iPad On Nov 19, 2014, at 11:31 AM, jblake207@comcast.net > wrote: For the record, found out yesterday that Blitz is actually a real pilot... He flew the H-19, the HH-43 and both the CH-3B&C. =C2-I'll bet there were a few more aero-machines that he could add to the list. =C2-You Rock Blitz! =C2-JB ==ric www.aeroelec"http://www.buildersbooks.com" target="_blank">www. buildersbooks.com =========== =C2- =C2- =C2- =C2- =C2--Matt Dralle, List Admin. =========== =========== MS - =========== ________________________________ Message 4 _____________________________________ Time: 01:47:25 PM PST US From: "Walter Lannon" Subject: Re: Yak-List: Prop nut torque Ernie; I probably gave you a bum steer. It is after all an =9Coverhaul=9D manual and that is an installation value. I know it is in my copy but only because I probably put it in when I converted all those torque values to in/lb or ft lb. My apologies. Can=99t confirm any of that as the manual is in the hangar and I am home under the weather. The other torque item you note is indeed the setting of the actual blade torque. Under normal circumstances it is an overhaul function only during hub assembly with the drive sleeve not installed. The drive sleeve is a rotational part in the hub that connects the blades to each other and to the pitch-change piston. The =9Cnut=9D they refer to should be =9Cnut=99s=9D and may be better described as blade bearing nuts =93 the big nuts in each end of the hub. These are tightened until each blade turning torque (rotational moment) is within limit and the actual nut torque is within 2NM of each other. At this point the nuts are metal stamped to line up with an index mark on the hub for future considerations, the prop is disassembled and reassembled with all parts in preparation for balancing. Walt From: Ernest Martinez Sent: Friday, November 21, 2014 5:45 AM Subject: Re: Yak-List: Prop nut torque Walt, The first place I looked was in the overhaul manual. I can see all the other torque values but none for the main nut. I see one cryptic entry which doesnt specify a torque value per se' but states: "Torque propellor housing nut to such extent that before installation of driving sleeve, rotation moment for each blade is 9.8 +- 2 N.M. during change from low pitch to high pitch. Ensure that torque difference between 2 nuts is not more than 2 N.M." I interpret this to mean, torque the nut to the point that the force to manually change the pitch is no more than 9.8 NM. But what other 2 nuts are they talking about? On Thu, Nov 20, 2014 at 10:46 PM, Ernest Martinez wrote: Thank you! On Thursday, November 20, 2014, Walter Lannon wrote: 50 to 60 KGM or 370 to 430 lb/ft. It is in the Tech. Specs Manual, pg. 216. Of course it is also in the component overhaul manual which gives a much more detailed view of the propellor and many other parts of the aircraft. Doug has them. Walt From: Ernest Martinez Sent: Thursday, November 20, 2014 5:58 PM To: yak-list Subject: Yak-List: Prop nut torque can someone give me a definitive answer for the torque value for the main prop nut for the Housai prop. I have gotten values ranging from 250 to 750 ft lbs. and can you provide the source, since I cannot find it in the manual. href="http://www.aeroelectric.com">www.aeroelectric.com href="http://www.buildersbooks.com">www.buildersbooks.com href="http://www.homebuilthelp.com">www.homebuilthelp.com href="http://www.mypilotstore.com">www.mypilotstore.com href="http://www.mrrace.com">www.mrrace.com href="http://www.matronics.com/contribution">http://www.matronics.com/c href="http://www.matronics.com/Navigator?Yak-List">http://www.matronics .com/Navigator?Yak-List href="http://forums.matronics.com">http://forums.matronics.com _blank">www.aeroelectric.com .com" target="_blank">www.buildersbooks.com ="_blank">www.homebuilthelp.com ="_blank">www.mypilotstore.com ank">www.mrrace.com _blank">http://www.matronics.com/contribution et="_blank">http://www.matronics.com/Navigator?Yak-List tp://forums.matronics.com ________________________________ Message 5 _____________________________________ Time: 02:50:27 PM PST US From: Richard Hess Subject: Re: Yak-List: Real Pilot! "Thunder!" Richard Hess C 404-964-4885 > On Nov 21, 2014, at 12:26, jblake207@comcast.net wrote: > > "Hog" drivers can drink my whiskey anytime! Best at putting steal on targ et in a JAAT! JB > > From: "Mark G CIV NAVAIR Bitterlich, WD" > To: "Yak-List" > Sent: Friday, November 21, 2014 11:21:54 AM > Subject: RE: Yak-List: Real Pilot! > bitterlich@navy.mil> > > Outside of the A-6, one of the most effective ground support aircraft I ha ve ever seen in action. Got a lot of respect for folks associated with the m. They work down in the weeds, and do so with tremendous effect. > > Mark > > > -----Original Message----- > From: owner-yak-list-server@matronics.com [mailto:owner-yak-list-server@ma tronics.com] On Behalf Of Richard Hess > Sent: Thursday, November 20, 2014 5:50 PM > To: yak-list@matronics.com > Subject: Re: Yak-List: Real Pilot! > > Yes, A-10 guys know all about CAS. Heck, we even lived in tents and ate MR Es. Almost Grunts in Blue !!! > > > Richard Hess > President > International Jets, Inc. > Cell 404-964-4885 > > > -----Original Message----- > From: Bitterlich, Mark G CIV NAVAIR, WD, WD > To: yak-list > Sent: Thu, Nov 20, 2014 5:33 pm > Subject: RE: Yak-List: Real Pilot! > > > > > EXCUSE ME? > > > > What about "Frag Patterns?" What would an Air Force Flight Doc know abou t > Close Air Support? > > > > Not burning you up here Doc, but leave Close Air Support to the Marines, u nless you possibly are flying a Hog. > > > > Just saying Viper Doc. > > > > Mark > > > > > > > > > > ________________________________ > From: owner-yak-list-server@matronics.com [owner-yak-list-server@matronics .com] > on behalf of Roger Kemp [f16viperdoc@me.com] > Sent: Thursday, November 20, 2014 2:14 PM > To: yak-list@matronics.com > Subject: Re: Yak-List: Real Pilot! > > Balls...need Em to root around in mud stirring tree limbs. > Now Blade, let's talk Frag patterns. > Doc > > Sent from my iPad > > On Nov 19, 2014, at 11:31 AM, jblake207@comcast.net > > wrote: > > For the record, found out yesterday that Blitz is actually a real pilot... He > flew the H-19, the HH-43 and both the CH-3B&C. I'll bet there were a few m ore > aero-machines that he could add to the list. You Rock Blitz! JB > > ========================= ==ric www.aeroelec"http://www.buildersbooks.com" target="_blank">www.b uildersbooks.com > > > > > = &========= > > > > > > 3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3 D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D 3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3 D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D 3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3 D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D 3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3 D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D > ________________________________ Message 6 _____________________________________ Time: 06:40:55 PM PST US Subject: Yak-List: Re: Prop nut torque From: "Vic" It puzzles me how one can issue torque numbers for the blades when the nuts only do one job, preload axial rollers. So Id be a bit worried to overload those rollers heavily to achieve 10 Nm torque in a roller bearing that normally has very low friction. What could be the effect if this torque was only half or quart of the numbers, anybody an idea ? I only know the Russian hub. Vic Read this topic online here: http://forums.matronics.com/viewtopic.php?p=434322#434322 ------------------------------------------------------------------------------------- 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.