---------------------------------------------------------- KIS-List Digest Archive --- Total Messages Posted Sun 08/03/14: 5 ---------------------------------------------------------- Today's Message Index: ---------------------- 1. 04:47 AM - N819PR Nose Gear Failure (Owen Baker) 2. 08:20 PM - FW: docs (Tim Yoder) 3. 09:12 PM - Re: N819PR Nose Gear Failure (Robert Reed) 4. 11:09 PM - Re: FW: docs (Hans Christian Erstad) 5. 11:14 PM - Re: N819PR Nose Gear Failure (Scott Stearns) ________________________________ Message 1 _____________________________________ Time: 04:47:37 AM PST US From: "Owen Baker " Subject: KIS-List: N819PR Nose Gear Failure 8/3/2014 Hello Galin, You wrote: I am also contemplating having the new pin made from steel instead of aluminum even with the dissimilar metal corrosion issue. I would not accept an aluminum pin in such a high stress location. I am surprised that such material was used in the first place. As for dissimilar metal corrosion here is some information on that issue: http://www.galvanizeit.org/design-and-fabrication/design-considerations/dissimilar-metals-in-contact http://en.wikipedia.org/wiki/Galvanic_corrosion I would like to stress the factor of current flow being the cause of such corrosion and the much reduced factor of current flow when the two metals are frequently moving against each other, instead of having a static connection, and the further reduction of current flow by some intervening substance such as grease. See here: Ensure there is no contact with an electrolyte. This can be done by using water-repellent compounds such as greases, or by coating the metals with an impermeable protective layer, such as a suitable paint, varnish, or plastic. It may take a bit of searching around, but you may even find a single long AN bolt that could replace the pin. Or, as has been already mentioned, use two shorter AN bolts. In addition to any grease involved these bolts would also have the initial protection against corrosion because of the cadmium plating. OC ========================================================= From: Galin Hernandez Sent: Friday, August 01, 2014 11:03 AM Subject: Re: KIS-List: N819PR Nose Gear Failure On Jul 31, 2014, at 10:38 PM, Galin Hernandez wrote: I contacted CATTO Props today but they are all at OSH so if somebody gets to talk to them ask about a 3 bladed composite for a KIS4 with Lycoming O360 180HP engine. :) Now for the ongoing nose gear saga: It turns out the rear pin on the nose gear assembly sheared which caused the gear to collapse. The shear was clean and it was obvious (corrosion) the pin had started breaking well before the failure. It sheared right where the "H" bracket meets the firewall bracket and this explains why the visual inspection done during the annual did not find it. To see the problem happening you have to remove the pin there is no other way to inspect the area. I recommend everyone pull and check their rear "H" bracket pin to see if they are experiencing the same issue or not. If you do please let us know what your find, good or bad, so if there is a trend we can identify it. I plan to pull and inspect the new pin after 50hr or 50 landing (whichever comes first) and at the annual. If I experience a bad shimmy at any time (due to over grease or lack of friction) I will pull and inspect the pin since this places a lot of stress on that specific part of that pin. After a few inspections I will decide if it needs to be inspected on a continuous basis or I just got a bad pin. I am also contemplating having the new pin made from steel instead of aluminum even with the dissimilar metal corrosion issue. Steel or aluminum I will do the above inspections no matter what the pin is eventually made from. ________________________________ Message 2 _____________________________________ Time: 08:20:05 PM PST US From: "Tim Yoder" Subject: KIS-List: FW: docs For those who have a Cont. IO-240 B1B in there TR-1 and haven't changed there rubber mount bushings recently, here are the part numbers and what they cost me from my source. Note that the four center bushings #638255 are not the same as used in the O-200. I had to remove my oil filter and adaptor in order the remove the bottom right mount bolt. The gasket was the replacement for the oil filter adaptor. If you have a different model IO-240 you may not need the gasket. It is a bit of a chore but well worth the effort. Thanks to OC Baker for his help no getting me the information I needed to complete this job. Tim _____ From: Tim Yoder [mailto:timyoder@mac.com] Sent: Sunday, August 03, 2014 7:47 PM Subject: docs --- This email is free from viruses and malware because avast! Antivirus protection is active. http://www.avast.com ________________________________ Message 3 _____________________________________ Time: 09:12:39 PM PST US From: Robert Reed Subject: Re: KIS-List: N819PR Nose Gear Failure Galin,=0A=0AI have been thinking about this since you first reported the ge ar=C2-failure.=C2- I can't help but wonder if the exhaust failure had a n effect on the H-Bracket that wouldn't have been so obvious.=C2- Since t he bracket is formed from Aluminum and you had to replace the pin was it po ssible that the hole in the bracket was somehow compromised allowing moveme nt of the pin that resulted=C2-in the failure.=C2- My thought is that t he heating of the bracket might have allowed the hole to expand or elongate allowing excess movement of the pin.=C2- =0A=0AI am just suspicious that the pin failed after such a short period following the exhaust problem eve n though it has lasted for a long time prior to that event.=0A=0AJust some ramblings of an old fool so feel free to ignore.=0A=0ABob=0A =0A=0A________ ________________________=0A From: Galin Hernandez =0ATo : "kis-list@matronics.com" =0ASent: Friday, August 1, 2014 10:35 AM=0ASubject: Re: KIS-List: N819PR Nose Gear Failure=0A =0A =0A=0AIf it was your idea I think you made a wise decision.=0A=0A=0A=0AOn F ri, Aug 1, 2014 at 11:20 AM, Alfred Rosa wrote:=0A=0A Galin, I'm out of town and can't send pictures till I get back in 10 days. =C2-My H does connect to the firewall brackets with two short AN bolts wh ich are almost impossible to break.=C2- =0A>Don't remember if that was th e design or my beefing up mod.=C2-=0A>=0A>Sent from my iPhone=0A>=0A>=0A> =0A>=0A>On Aug 1, 2014, at 11:03 AM, Galin Hernandez w rote:=0A>=0A>=0A>Al; Here is a=C2-photo of the=C2-"H" bracket where you can see=C2-the rear aluminum pin just underneath the fuselage.=0A>>=0A>> Can you send a photo of your set up? I wonder if they changed the design an d now use 2 steel bolts instead of one aluminum pin. This would really stre ngthen the point where the "H" bracket connect to the firewall brackets whi ch is what I was thinking with=C2-my idea of a steel pin. =0A>>=0A>>=0A>> =0A>>On Fri, Aug 1, 2014 at 6:24 AM, Alfred Rosa wrot e:=0A>>=0A>>Galin,=0A>>>I'm having a hard time trying to understand what yo u mean by the rear pin. My H bracket connects to the firewall brackets with two bolts.=C2- =0A>>>Al=0A>>>=0A>>>Sent from my iPhone=0A>>>=0A>>>On Jul 31, 2014, at 10:38 PM, Galin Hernandez wrote:=0A>>> =0A>>> =0A>>>I contacted CATTO Props today but they are all at OSH so if so mebody gets to talk to them ask about a 3 bladed composite for a KIS4 with Lycoming O360 180HP engine. :) =0A>>>>=0A>>>>Now for the ongoing nose gear saga: =0A>>>>It turns out the rear pin on the nose gear assembly=C2-shear ed which caused the gear to collapse.=C2-The shear was clean and it was o bvious (corrosion) the pin had started=C2-breaking well before the failur e.=C2-It sheared right where the "H" bracket meets the firewall bracket a nd this explains why the visual inspection done during the annual did not =C2-find it. To see the problem happening you=C2-have to remove the pin there is no other way to inspect the area. I recommend everyone pull and c heck their rear "H" bracket pin to see if they are experiencing the same is sue or not. If you do please let us know what your find, good or bad, so if there is a trend we can identify it. =0A>>>>=0A>>>>I plan to pull and insp ect the=C2-new pin after 50hr or 50 landing (whichever comes first) and =C2-at the annual. If I experience a bad shimmy at any=C2-time (due to over grease or lack of friction)=C2-I will=C2-pull and inspect the pin since this places a lot of stress=C2-on that specific part of that pin. =C2-After a few inspections=C2-I will decide if it needs to be inspecte d on a continuous basis or=C2-I just got a bad pin. I am also=C2-contem plating having the new pin made from steel instead of aluminum even with th e=C2-dissimilar metal corrosion issue. Steel or aluminum I will do the ab ove inspections no matter what=C2-the pin is eventually made from. =0A>>> >=0A>>>>=0A>>>>=0A>>>>=0A>>>>=0A>>>>On Wed, Jul 30, 2014 at 4:44 PM, Tim Yo der wrote:=0A>>>>=0A>>>> =0A>>>>>Galin, =0A>>>>> =C2- =0A>>>>>You might talk to Scott Stearns, he had a Prince prop on his =0Acarbon TR-1C=C2-with a 220 HP O-360 and has changed to a different pr op. A =0Afriend got a three blade Catto for his RV7 that took six months to get but he =0Alikes it. The Prince P-Tip is not the most efficient design and I'm sure you =0Aknow that two blades are more efficient than three, as Bob mentioned, assuming =0Ayou have ground clearance. I also believe that M T has a mandatory 10 yr. =0Aoverhaul on it's adjustable props. That cost al lot also. =0A>>>>>=C2- =0A>>>>>Tim=0A>>>>>=0A>>>>>=0A>>>>>_______________ _________________=0A>>>>> =0A>>>>>From: owner-kis-list-server@matronics.com [mailto:owner-kis-list-server@matronics.com] On Behalf Of Galin =0AHernand ez=0A>>>>>=0A>>>>>Sent: Wednesday, July 30, 2014 1:08 PM=0A>>>>>=0A>>>>>To: kis-list@matronics.com=0A>>>>>Subject: Re: KIS-List: N819PR Nose Gear =0AF ailure=0A>>>>>=0A>>>>>=0A>>>>> =0A>>>>>THANKS for the info Bob. =0A>>>>>=0A >>>>>Is anybody running a fixed pitch composite=C2-3 bladed prop on a TR- 4? I =0Awant some basic inputs from actual use before I make a decision. MT , Prince and =0Aeven Sensenich are high on my list. =0A>>>>>=0A>>>>>=0A>>>> >=0A>>>>>On Wed, Jul 30, 2014 at 3:26 PM, Robert Reed wrote:=0A>>>>>=0A>>>>>Galin, =0A>>>>>>=0A>>>>>> =0A>>>>>>Catto didn't have a model number for the prop, he basically did a custom based on engine ho rsepower, RPM, and airspeed for the aircraft.=C2- He also included desir ed two blade or three blade configuration.=C2- I went with three blade o ut of desire to have quite operation over power performance because of Sha ron's migraines.=C2- Catto now has the leading edge protection on his pr ops. =0A>>>>>>=0A>>>>>> =0A>>>>>>I looked at Prince and can't remember why I excluded them but it seems that their prop wasn't rated for the Lycomin g 360 engine at that time.=C2- I also looked at MT Props but they were a bit on the expensive side as I recall.=C2- I really liked their electri c constant speed option though and would probably have gone with that if m oney weren't a primary concern. =0A>>>>>>=0A>>>>>> =0A>>>>>>Hope that hel ps, =0A>>>>>>=0A>>>>>> =0A>>>>>>Bob =0A>>>>>>=0A>>>>>> =0A>>>>>>=0A>>>>>> =0A>>>>>>=0A>>>>>> =0A>>>>>>From: Galin Hernandez =0A> >>>>>To: "kis-list@matronics.com" =0A>>>>>>Sent: Wednesday, July 30, 2014 1:08 PM =0A>>>>>>=0A>>>>>>Subject: Re: KIS-List: N819PR Nose Gear Failure=0A>>>>>> =0A>>>>>>=0A>>>>>>=0A>>>>>>Bob; What mode l prop did you wind up buying from Catto? Does it have a particular model number/designation? =0A>>>>>>=0A>>>>>>=0A>>>>>>=0A>>>>>>On Thu, Jul 24, 201 4 at 9:42 AM, Owen Baker wrote:=0A>>>>>>=0A>>>>>>7/24/20 14 =0A>>>>>>>=0A>>>>>>>Hello Galin, You wrote: =9C.... composite prop s and rain don't mix very well....=9D =0A>>>>>>>=0A>>>>>>>Would you consider a prince propeller with leading edge protection? =0A>>>>>>>=0A>>> >>>>http://www.princeaircraft.com/ =0A>>>>>>>=0A>>>>>>>OC =0A>>>>>>>=0A>>>> >>>======================== ========== =C2- =0A>>>>>>>From: Galin Hernandez =0A >>>>>>>Sent: Thursday, July 24, 2014 8:46 AM =0A>>>>>>>To: kis-list@matroni cs.com =0A>>>>>>>Subject: Re: KIS-List: N819PR Nose Gear Failure =0A>>>>> >> =0A>>>>>>>Initial check by the mechanic indicates no firewall damage at all, so the actual damage is not a big deal. Engine will be completely ov erhauled, a new nose gear installed, a new propeller installed, some fiber glass work done and the airplane will be better than before. The airplane is a whole lot stronger than it looks. =0A>>>>>>>=C2- =0A>>>>>>>The rear pin on the landing gear "H" bracket broke letting the entire assembly rota te 180 degrees backwards. Once this happened the main tube held up for a l ittle bit but eventually collapsed under the different stress. I will ask Lyle if he can make the landing gear rear pin a little bigger to better wi thstand the landing loads. =0A>>>>>>>=C2- =0A>>>>>>>I will definitely lo ok at moving the main gear an inch or two further forward but not sure if it can be done at this stage. The other option is to go with a CATTO compo site prop, which is lighter than the SENSENICH aluminum prop I have, but c omposite props and rain don't mix very well and I fly real IMC. =0A>>>>>>> =0A>>>>>>>=0A>>>>>>>=0A>>>>>>>=C2-=0A>>>>>>>et="_blank">http://www.matr onics.com/Navigator?KIS-List=0A>>>>>>>tp://forums.matronics.com _blank">htt p://www.matronics.com/contribution =0A>>>>>>=0A>>>>>>http://www.matro//foru ms.matronics.com/" target="_blank" rel="nofollow">http://forums./== ======== =0A>>>>>>=0A>>>>>> =0A>>>>>>et="_blank">http://w ww.matronics.com/Navigator?KIS-List tp://forums.matronics.com _blank">http: //www.matronics.com/contribution =0A>>>>>=0A>>>>>://www.matronics.com/Navig ator?KIS-List ics.com .matronics.com/contribution =0A>>>>>=0A>>>>>=0A>>>>> =0A>>>>>________________________________=0A>>>>> =0A>>>>> This email is f ree from viruses and malware because avast! Antivirus protection is active. =0A>>>>>=0A>>>>>et="_blank">http://www.matronics.com/Navigator?KIS-Li st=0A>>>>>tp://forums.matronics.com _blank">http://www.matronics.com/contri bution =0A>>>> =0A>>>>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=0Aist"">http://www.matronics.com/Navigator?KIS-Li st=0A>>>>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=0A//forums.matronics.com 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=0Aot;">http://www.matronics.com/contr ibution 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 =0A>>>et="_blank">http://www.matronics.com/Navigator?KIS-List =0A>>>tp://forums.matronics.com _blank">http://www.matronics.com/contributi on =0A>> =0A>=0A>et="_blank">http://www.matronics.com/Navig ator?KIS-List=0Atp://forums.matronics.com=0A_blank">http://www.matronics.co ================= ________________________________ Message 4 _____________________________________ Time: 11:09:29 PM PST US Subject: Re: KIS-List: FW: docs From: Hans Christian Erstad Thanks for sharing this information Tim. I have IO-240 and have not changed the bushings yet. Now I know how.. Hans Christian 2014-08-04 5:19 GMT+02:00 Tim Yoder : > For those who have a Cont. IO-240 B1B in there TR-1 and haven't changed > there rubber mount bushings recently, here are the part numbers and what > they cost me from my source. Note that the four center bushings #638255 are > not the same as used in the O-200. I had to remove my oil filter and > adaptor in order the remove the bottom right mount bolt. The gasket was the > replacement for the oil filter adaptor. If you have a different model > IO-240 you may not need the gasket. > > It is a bit of a chore but well worth the effort. > > Thanks to OC Baker for his help no getting me the information I needed to > complete this job. > > Tim > > ------------------------------ > *From:* Tim Yoder [mailto:timyoder@mac.com] > *Sent:* Sunday, August 03, 2014 7:47 PM > *To:* Dad > *Subject:* docs > > > ------------------------------ > > > This email is free from viruses and malware because avast! Antivirus > protection is active. > > ________________________________ Message 5 _____________________________________ Time: 11:14:01 PM PST US From: Scott Stearns Subject: Re: KIS-List: N819PR Nose Gear Failure I would go with the whirlwind ground adjustable. =C2-I just flew to Oshko sh and back behind it. =C2-It is about the same weight and price as my ol d prince prop, but you can adjust the pitch to be exactly optimum.=0A=0AAre you going with a stock overhaul? =C2-Are you concidering porting/flow ba lancing or higher compression pistons? =C2-=C2-=0A=0AScott=0A=0A=0AOn S unday, August 3, 2014 9:15 PM, Robert Reed wrote:=0A =0A=0A=0AGalin,=0A=0AI have been thinking about this since you first report ed the gear=C2-failure.=C2- I can't help but wonder if the exhaust fail ure had an effect on the H-Bracket that wouldn't have been so obvious.=C2 - Since the bracket is formed from Aluminum and you had to replace the pi n was it possible that the hole in the bracket was somehow compromised allo wing movement of the pin that resulted=C2-in the failure.=C2- My though t is that the heating of the bracket might have allowed the hole to expand or elongate allowing excess movement of the pin.=C2- =0A=0AI am just susp icious that the pin failed after such a short period following the exhaust problem even though it has lasted for a long time prior to that event.=0A =0AJust some ramblings of an old fool so feel free to ignore.=0A=0ABob=0A =0AFrom: Galin Hernandez =0ATo: "kis-list@matronics.com " =0ASent: Friday, August 1, 2014 10:35 AM=0ASubje ct: Re: KIS-List: N819PR Nose Gear Failure=0A =0A=0A=0AIf it was your idea I think you made a wise decision.=0A=0A=0A=0AOn Fri, Aug 1, 2014 at 11:20 A M, Alfred Rosa wrote:=0A=0AGalin, I'm out of town and can't send pictures till I get back in 10 days. =C2-My H does connect to the firewall brackets with two short AN bolts which are almost impossible to break.=C2-=0A>Don't remember if that was the design or my beefing up m od.=C2-=0A>=0A>Sent from my iPhone=0A>=0A>=0A>=0A>=0A>On Aug 1, 2014, at 11:03 AM, Galin Hernandez wrote:=0A>=0A>=0A>Al; Here i s a=C2-photo of the=C2-"H" bracket where you can see=C2-the rear alum inum pin just underneath the fuselage.=0A>>=C2-=0A>>Can you send a photo of your set up? I wonder if they changed the design and now use 2 steel bol ts instead of one aluminum pin. This would really strengthen the point wher e the "H" bracket connect to the firewall brackets which is what I was thin king with=C2-my idea of a steel pin.=0A>>=0A>>=0A>>=0A>>On Fri, Aug 1, 20 14 at 6:24 AM, Alfred Rosa wrote:=0A>>=0A>>Galin,=0A> >>I'm having a hard time trying to understand what you mean by the rear pin . My H bracket connects to the firewall brackets with two bolts.=C2-=0A>> >Al=0A>>>=0A>>>Sent from my iPhone=0A>>>=0A>>>On Jul 31, 2014, at 10:38 PM, Galin Hernandez wrote:=0A>>>=0A>>>=0A>>>I contacted C ATTO Props today but they are all at OSH so if somebody gets to talk to the m ask about a 3 bladed composite for a KIS4 with Lycoming O360 180HP engine . :)=0A>>>>=C2-=0A>>>>Now for the ongoing nose gear saga:=0A>>>>It turns out the rear pin on the nose gear assembly=C2-sheared which caused the ge ar to collapse.=C2-The shear was clean and it was obvious (corrosion) the pin had started=C2-breaking well before the failure.=C2-It sheared rig ht where the "H" bracket meets the firewall bracket and this explains why t he visual inspection done during the annual did not=C2-find it. To see th e problem happening you=C2-have to remove the pin there is no other way t o inspect the area. I recommend everyone pull and check their rear "H" brac ket pin to see if they are experiencing the same issue or not. If you do pl ease let us know what your find, good or bad, so if there is a trend we can identify it.=0A>>>>=C2-=0A>>>>I plan to pull and inspect the=C2-new pi n after 50hr or 50 landing (whichever comes first) and=C2-at the annual. If I experience a bad shimmy at any=C2-time (due to over grease or lack o f friction)=C2-I will=C2-pull and inspect the pin since this places a l ot of stress=C2-on that specific part of that pin.=C2-After a few inspe ctions=C2-I will decide if it needs to be inspected on a continuous basis or=C2-I just got a bad pin. I am also=C2-contemplating having the new pin made from steel instead of aluminum even with the=C2-dissimilar metal corrosion issue. Steel or aluminum I will do the above inspections no matt er what=C2-the pin is eventually made from.=0A>>>>=C2-=0A>>>>=C2-=0A> >>>=0A>>>>=0A>>>>=0A>>>>On Wed, Jul 30, 2014 at 4:44 PM, Tim Yoder wrote:=0A>>>>=0A>>>> =0A>>>>>Galin,=0A>>>>>=C2-=0A>>>>>Y ou might talk to Scott Stearns, he had a Prince prop on his =0Acarbon TR-1C =C2-with a 220 HP O-360 and has changed to a different prop. A =0Afriend got a three blade Catto for his RV7 that took six months to get but he =0Al ikes it. The Prince P-Tip is not the most efficient design and I'm sure you =0Aknow that two blades are more efficient than three, as Bob mentioned, a ssuming =0Ayou have ground clearance. I also believe that MT has a mandator y 10 yr. =0Aoverhaul on it's adjustable props. That cost allot also.=0A>>>> >=C2-=0A>>>>>Tim=0A>>>>>=0A>>>>>From: owner-kis-list-server@matronics.com [mailto:owner-kis-list-server@matronics.com] On Behalf Of Galin =0AHernand ez=0A>>>>>=0A>>>>>Sent: Wednesday, July 30, 2014 1:08 PM=0A>>>>>=0A>>>>>To: kis-list@matronics.com=0A>>>>>Subject: Re: KIS-List: N819PR Nose Gear =0AF ailure=0A>>>>>=0A>>>>>=0A>>>>>THANKS for the info Bob.=0A>>>>>=C2-=0A>>>> >Is anybody running a fixed pitch composite=C2-3 bladed prop on a TR-4? I =0Awant some basic inputs from actual use before I make a decision. MT, Pr ince and =0Aeven Sensenich are high on my list.=0A>>>>>=0A>>>>>=0A>>>>>=0A> >>>>On Wed, Jul 30, 2014 at 3:26 PM, Robert Reed wrote :=0A>>>>>=0A>>>>>Galin,=0A>>>>>>=0A>>>>>>=0A>>>>>>Catto didn't have a mode l number for the prop, he basically did a custom based on engine horsepowe r, RPM, and airspeed for the aircraft.=C2- He also included desired two blade or three blade configuration.=C2- I went with three blade out of d esire to have quite operation over power performance because of Sharon's m igraines.=C2- Catto now has the leading edge protection on his props.=0A >>>>>>=0A>>>>>>=0A>>>>>>I looked at Prince and can't remember why I exclud ed them but it seems that their prop wasn't rated for the Lycoming 360 eng ine at that time.=C2- I also looked at MT Props but they were a bit on t he expensive side as I recall.=C2- I really liked their electric constan t speed option though and would probably have gone with that if money were n't a primary concern.=0A>>>>>>=0A>>>>>>=0A>>>>>>Hope that helps,=0A>>>>> >=0A>>>>>>=0A>>>>>>Bob=0A>>>>>>=0A>>>>>>=0A>>>>>>=0A>>>>>>=0A>>>>>>=0A>>>>> >=0A>>>>>>From: Galin Hernandez =0A>>>>>>To: "kis-list @matronics.com" =0A>>>>>>Sent: Wednesday, July 30 , 2014 1:08 PM =0A>>>>>>=0A>>>>>>Subject: Re: KIS-List: N819PR Nose Gear F ailure=0A>>>>>>=0A>>>>>>=0A>>>>>>=0A>>>>>>Bob; What model prop did you wind up buying from Catto? Does it have a particular model number/designation? =0A>>>>>>=0A>>>>>>=0A>>>>>>=0A>>>>>>On Thu, Jul 24, 2014 at 9:42 AM, Owen B aker wrote:=0A>>>>>>=0A>>>>>>7/24/2014=0A>>>>>>>=C2- =0A>>>>>>>Hello Galin, You wrote: =9C.... composite props and rain do n't mix very well....=9D=0A>>>>>>>=C2-=0A>>>>>>>Would you consider a prince propeller with leading edge protection?=0A>>>>>>>=C2-=0A>>>>>> >http://www.princeaircraft.com/=0A>>>>>>>=C2-=0A>>>>>>>OC=0A>>>>>>>=C2- =0A>>>>>>>==========C2-=0A>>>>>>>From: Galin Hernandez =0A>>>>>>>Sent: Thursday, July 24, 2014 8:46 AM=0A>>>>>>>To: kis-list@matr onics.com =0A>>>>>>>Subject: Re: KIS-List: N819PR Nose Gear Failure=0A>>>> >>>=C2- =0A>>>>>>>Initial check by the mechanic indicates no firewall da mage at all, so the actual damage is not a big deal. Engine will be comple tely overhauled, a new nose gear installed, a new propeller installed, som e fiberglass work done and the airplane will be better than before. The ai rplane is a whole lot stronger than it looks.=0A>>>>>>>=C2-=0A>>>>>>>The rear pin on the landing gear "H" bracket broke letting the entire assembly rotate 180 degrees backwards. Once this happened the main tube held up fo r a little bit but eventually collapsed under the different stress. I will ask Lyle if he can make the landing gear rear pin a little bigger to bett er withstand the landing loads.=0A>>>>>>>=C2-=0A>>>>>>>I will definitely look at moving the main gear an inch or two further forward but not sure if it can be done at this stage. The other option is to go with a CATTO co mposite prop, which is lighter than the SENSENICH aluminum prop I have, bu t composite props and rain don't mix very well and I fly real IMC.=0A>>>>> >>=0A>>>>>>>=0A>>>>>>>=0A>>>>>>>=C2-=0A>>>>>>>et="_blank">http://www.ma tronics.com/Navigator?KIS-List=0A>>>>>>>tp://forums.matronics.com _blank">h ttp://www.matronics.com/contribution =0A>>>>>>=0A>>>>>>http://www.matro//fo rums.matronics.com/" target="_blank" rel="nofollow">http://forums./= ========= =0A>>>>>>=0A>>>>>>=0A>>>>>>et="_blank">http:/ /www.matronics.com/Navigator?KIS-List tp://forums.matronics.com _blank">htt p://www.matronics.com/contribution =0A>>>>>=0A>>>>>://www.matronics.com/Nav igator?KIS-List ics.com .matronics.com/contribution =0A>>>>>=0A>>>>>=0A>>>> > This email is free from viruses and malware because avast! 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