---------------------------------------------------------- KIS-List Digest Archive --- Total Messages Posted Tue 08/30/16: 8 ---------------------------------------------------------- Today's Message Index: ---------------------- 1. 11:43 AM - Nose gear nut? (pastormac@comcast.net) 2. 12:15 PM - Re: Nose gear nut? (Alfred Rosa) 3. 12:20 PM - Re: Nose gear nut? (pastormac@comcast.net) 4. 01:01 PM - Re: Nose gear nut? (Galin Hernandez) 5. 01:10 PM - Re: Nose gear nut? (Bill Schertz) 6. 01:41 PM - Re: Nose gear nut? (Alfred Rosa) 7. 02:03 PM - Re: Nose gear nut? (Alfred Rosa) 8. 02:03 PM - Re: Nose gear nut? (Owen Baker) ________________________________ Message 1 _____________________________________ Time: 11:43:11 AM PST US From: pastormac@comcast.net Subject: KIS-List: Nose gear nut? Hi Guys, I presently have a lock nut "plastic insert" holding the main nose gear bolt on. My question, is this ok to use? Any other suggestions?? Thanks! Steve Sent from my iPhone ________________________________ Message 2 _____________________________________ Time: 12:15:58 PM PST US Subject: Re: KIS-List: Nose gear nut? From: Alfred Rosa No. Use a castellated nut with a stainless cotter pin. Al Sent from my iPhone > On Aug 30, 2016, at 2:42 PM, pastormac@comcast.net wrote: > > > Hi Guys, > I presently have a lock nut "plastic insert" holding the main nose gear bolt on. My question, is this ok to use? Any other suggestions?? > Thanks! > Steve > > Sent from my iPhone > > > > > ________________________________ Message 3 _____________________________________ Time: 12:20:17 PM PST US From: pastormac@comcast.net Subject: Re: KIS-List: Nose gear nut? Thanks Al, That's the way it came.. I don't know if the main bold has a hole drilled through it for a carter pin? Guess I may have to order one! ----- Original Message ----- From: "Alfred Rosa" Sent: Tuesday, August 30, 2016 3:15:42 PM Subject: Re: KIS-List: Nose gear nut? No. Use a castellated nut with a stainless cotter pin. Al Sent from my iPhone > On Aug 30, 2016, at 2:42 PM, pastormac@comcast.net wrote: > > > Hi Guys, > I presently have a lock nut "plastic insert" holding the main nose gear bolt on. My question, is this ok to use? Any other suggestions?? > Thanks! > Steve > > Sent from my iPhone > > > > > ________________________________ Message 4 _____________________________________ Time: 01:01:00 PM PST US From: Galin Hernandez Subject: Re: KIS-List: Nose gear nut? Like Al said, castellated nut with a cotter pin is the only way to do this. The KIS builders manual "Castoring Nose Wheel Supplement" under the "Pivot Friction" section specifies this including the amount of torque required for proper operation. FWIW The copy of the Castoring Nose Wheel Supplement I attached to this e-Mail has some of my notes on it. On Tue, Aug 30, 2016 at 2:42 PM, wrote: > > Hi Guys, > I presently have a lock nut "plastic insert" holding the main nose gear > bolt on. My question, is this ok to use? Any other suggestions?? > Thanks! > Steve > > Sent from my iPhone > > ________________________________ Message 5 _____________________________________ Time: 01:10:12 PM PST US From: "Bill Schertz" Subject: Re: KIS-List: Nose gear nut? Are you talking about the large nut that holds the nose wheel fork onto to front gear leg? If so, should be a castellated nut with cotter pin. If you are talking about the bolt through the axel, then a nylock nut with proper thread showing is probably okay, that is the way mine was drawn and constructed, and has been fine for ~150 hours flight time. From: pastormac@comcast.net Sent: Tuesday, August 30, 2016 1:19 PM Subject: Re: KIS-List: Nose gear nut? Thanks Al, That's the way it came.. I don't know if the main bold has a hole drilled through it for a carter pin? Guess I may have to order one! ------------------------------------------------------------------------- ------- From: "Alfred Rosa" Sent: Tuesday, August 30, 2016 3:15:42 PM Subject: Re: KIS-List: Nose gear nut? No. Use a castellated nut with a stainless cotter pin. Al Sent from my iPhone > On Aug 30, 2016, at 2:42 PM, pastormac@comcast.net wrote: > > > Hi Guys, > I presently have a lock nut "plastic insert" holding the main nose gear bolt on. My question, is this ok to use? Any other suggestions?? > Thanks! > Steve > > Sent from my iPhone > > > > > sp; -Matt Dralle, Li-======================== ________________________________ Message 6 _____________________________________ Time: 01:41:32 PM PST US Subject: Re: KIS-List: Nose gear nut? From: Alfred Rosa Drill a hole yourself and bevel it. Sent from my iPhone > On Aug 30, 2016, at 3:19 PM, pastormac@comcast.net wrote: > > Thanks Al, > That's the way it came.. I don't know if the main bold has a hole drilled t hrough it for a carter pin? Guess I may have to order one! > From: "Alfred Rosa" > To: kis-list@matronics.com > Sent: Tuesday, August 30, 2016 3:15:42 PM > Subject: Re: KIS-List: Nose gear nut? > > > No. Use a castellated nut with a stainless cotter pin. > Al > > Sent from my iPhone > > > On Aug 30, 2016, at 2:42 PM, pastormac@comcast.net wrote: > > > > > > Hi Guys, > > I presently have a lock nut "plastic insert" holding the main nose gear b olt on. My question, is this ok to use? Any other suggestions?? > > Thanks! > > Steve > > > > Sent from my iPhone > > > > > > > > > > > > > sp; -Matt Dralle, Li-============= ===================== > > > > ________________________________ Message 7 _____________________________________ Time: 02:03:03 PM PST US Subject: Re: KIS-List: Nose gear nut? From: Alfred Rosa Bill schertz is correct. The nut on the bottom of the pivot point must be c astellated but the nut for the axle bolt can be a locknut according to the m anual. I believe I drilled this bolt to take a castellated nut also just to be on the safe side. Thanks Bill. Sent from my iPhone > On Aug 30, 2016, at 4:09 PM, "Bill Schertz" wrote: > > Are you talking about the large nut that holds the nose wheel fork onto to front gear leg? If so, should be a castellated nut with cotter pin. > > If you are talking about the bolt through the axel, then a nylock nut with proper thread showing is probably okay, that is the way mine was drawn and c onstructed, and has been fine for ~150 hours flight time. > > From: pastormac@comcast.net > Sent: Tuesday, August 30, 2016 1:19 PM > To: kis-list@matronics.com > Subject: Re: KIS-List: Nose gear nut? > > Thanks Al, > That's the way it came.. I don't know if the main bold has a hole drilled t hrough it for a carter pin? Guess I may have to order one! > From: "Alfred Rosa" > To: kis-list@matronics.com > Sent: Tuesday, August 30, 2016 3:15:42 PM > Subject: Re: KIS-List: Nose gear nut? > > > No. Use a castellated nut with a stainless cotter pin. > Al > > Sent from my iPhone > > > On Aug 30, 2016, at 2:42 PM, pastormac@comcast.net wrote: > > > > > > Hi Guys, > > I presently have a lock nut "plastic insert" holding the main nose gear b olt on. My question, is this ok to use? Any other suggestions?? > > Thanks! > > Steve > > > > Sent from my iPhone > > > > > > > > > > > > > sp; -Matt Dralle, Li-============= ===================== > > > > ________________________________ Message 8 _____________________________________ Time: 02:03:15 PM PST US From: "Owen Baker " Subject: Re: KIS-List: Nose gear nut? 8/30/2016 Hello Steve, You wrote: 1) " I presently have ......" Please --- first thing when you post, it would be appreciated if you would identify the kind of KIS airplane that you are asking a question about. Either KIS TR-1 or KIS 4 place should get us in the right ball park to answer your question(s). 2) ".... holding the main nose gear bolt on." The main landing gear is back under the wing. The nose landing gear is forward under the engine. I assume that your question relates to the nose landing gear. The nose wheel and tire is contained within an aluminum shoe or cradle that swivels about a short vertical stub at the bottom end of the nose landing gear in order to steer the aircraft with differential braking during taxiing. At the very bottom of that vertical stub is a 3/4 inch by 16 threads per inch threaded portion. A compatible 3/4- 16 nut and some washers are used to retain the aluminum shoe. 3) "I presently have a lock nut "plastic insert" holding the main nose gear bolt on. My question, is this ok to use?" Absolutely not. 4) "Any other suggestions??" You must use a castle nut such as a AN310-12 or (more likely) a thin castle nut AN320-12 in combination with a cotter key and washers to retain the aluminum shoe and not an elastic stop nut. Here is why: A) Elastic stop nuts are not to be used in any situation where there is rotation about the bolt, stud, or threaded stub where a nut is used because it is possible for the nut to back off. Here is an extract from paragraph 7-64 in << http://www.faa.gov/documentlibrary/media/advisory_circular/ac_43.13-1b_w-chg1.pdf >> "Two types of self-locking nuts are currently in use, the all-metal type, and the fiber or nylon type. a. DO NOT use self-locking nuts on parts subject to rotation. b. Self-locking castellated nuts with cotter pins or lockwire may be used in any system." B) In this case the nut provides two very important functions: It keeps the aluminum shoe, nose wheel, and tire from falling off the nose landing gear; and It provides the friction that keeps the nose wheel from shimmying, a very critical function since nose wheel shimmy can become violent enough to rip the nose landing gear strut right off the fire wall. C) I won't go into detail here on the techniques and washers, either Belleville or nylon, that are used in conjunction with the castle nut and cotter key to maintain proper nose landing gear friction because there has been some recent info exchanged on that subject and I will either repost it or forward it to you. Please let me know if you have any questions. OC bakerocb at cox.net =================================================== From: pastormac@comcast.net Sent: Tuesday, August 30, 2016 2:42 PM Subject: KIS-List: Nose gear nut? Hi Guys, I presently have a lock nut "plastic insert" holding the main nose gear bolt on. My question, is this ok to use? Any other suggestions?? Thanks! Steve ------------------------------------------------------------------------------------- Other Matronics Email List Services ------------------------------------------------------------------------------------- Post A New Message kis-list@matronics.com UN/SUBSCRIBE http://www.matronics.com/subscription List FAQ http://www.matronics.com/FAQ/KIS-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/kis-list Browse Digests http://www.matronics.com/digest/kis-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.