---------------------------------------------------------- KIS-List Digest Archive --- Total Messages Posted Wed 08/07/13: 6 ---------------------------------------------------------- Today's Message Index: ---------------------- 1. 11:06 AM - TR-1 Nose gear leg - again (Hans Christian Erstad) 2. 11:18 AM - Re: TR-1 Nose gear leg - again (Robert Reed) 3. 01:17 PM - Re: TR-1 Nose gear leg - again (Galin Hernandez) 4. 02:10 PM - Re: TR-1 Nose gear leg - again (Alfred Rosa) 5. 02:16 PM - Re: TR-1 Nose gear leg - again (Alfred Rosa) 6. 07:34 PM - Re: TR-1 Nose gear leg - again (Mark Kettering) ________________________________ Message 1 _____________________________________ Time: 11:06:32 AM PST US From: "Hans Christian Erstad" Subject: KIS-List: TR-1 Nose gear leg - again I have the original design round tube nose gear leg. As I remember it was said it was heat treated, but I no not really know . Since all the bad experiences with the nose grear, I have been careful, and only operated from asphalt runways. However, on the weekend I flew to an airfield with grass runway. When arriving home I discovered that the leg have been bent. The straight portion of the leg is still straight, so it must be the bend at the lower end that have been bent further. The bending is not much, and I could keep on flying, but I should really do something. Have it checked for cracking, and then keep on flying (never from grass again) or have it bent back to its original chape, or have the bent part replaced, or.............. This topic have been covered well in the past, but if anyone have some experience to share with me? regards Hans Christian ________________________________ Message 2 _____________________________________ Time: 11:18:17 AM PST US From: Robert Reed Subject: Re: KIS-List: TR-1 Nose gear leg - again Hans,=0A-=0AI am no expert on this but bending it back sounds like a very bad idea to me.- Any bending of parts like the landing gear puts stress on the metal and should be followed by inspection and heat treating. =0A- =0AJust my opinion, no scientific facts.=0A-=0ABob Reed=0A =0A=0A________ ________________________=0A From: Hans Christian Erstad =0ATo: kis-list@matronics.com =0ASent: Wednesday, August 7, 2013 1:06 P M=0ASubject: KIS-List: TR-1 Nose gear leg - again=0A =0A=0A=0AI have the o riginal =0Adesign round tube nose gear-leg. As I remember it was said it was heat =0Atreated, but I no not really know . =0A- =0ASince all the bad experiences with the nose grear, =0AI have been careful, and only operated from asphalt runways. However, on the =0Aweekend I flew-to-an airfield with-grass runway. When arriving =0Ahome I discovered that the leg have been bent. The straight portion of the leg =0Ais still straight, so it-mu st =0Abe-the bend at the lower end that have been bent =0Afurther. =0A- =0AThe bending =0Ais not much, and I could keep on flying, but I should re ally do something. Have =0Ait checked for cracking, and then keep on flying (never from grass again) or =0Ahave it bent back to its original chape, or have the bent part replaced, =0Aor.............. =0A- =0AThis topic have been =0Acovered well in the past, but if anyone have some experience to sh are with =0Ame? =0A- =0Aregards =0AHans =0AChristian ________________________________ Message 3 _____________________________________ Time: 01:17:37 PM PST US From: Galin Hernandez Subject: Re: KIS-List: TR-1 Nose gear leg - again If this is a TR4, I would recommend replacing it with the newer version. The TR4 has a much heavier nose weight and I find even the newer version is barely strong enough. I don't know about the TR1. Galin On Wed, Aug 7, 2013 at 2:06 PM, Hans Christian Erstad wrote: > ** > I have the original design round tube nose gear leg. As I remember it was > said it was heat treated, but I no not really know . > > Since all the bad experiences with the nose grear, I have been careful, > and only operated from asphalt runways. However, on the weekend I > flew to an airfield with grass runway. When arriving home I discovered that > the leg have been bent. The straight portion of the leg is still straight, > so it must be the bend at the lower end that have been bent further. > > The bending is not much, and I could keep on flying, but I should really > do something. Have it checked for cracking, and then keep on flying (never > from grass again) or have it bent back to its original chape, or have the > bent part replaced, or.............. > > This topic have been covered well in the past, but if anyone have some > experience to share with me? > > regards > Hans Christian > > ________________________________ Message 4 _____________________________________ Time: 02:10:53 PM PST US Subject: Re: KIS-List: TR-1 Nose gear leg - again From: Alfred Rosa [image: Inline image 1]Galin, It appears that you have an early TR4 nose gear with a bent continuous tube. My gear is a later and I believe much stronger TR 4 gear design. I think Lyle Hendricks made these but am not sure of this. If you bend the distortion back it will be considerably weaker and will distort again maybe even on paved landing strips. My advice is to have the new design made up and replace the original nose gear. Al On Wed, Aug 7, 2013 at 2:06 PM, Hans Christian Erstad wrote: > ** > I have the original design round tube nose gear leg. As I remember it was > said it was heat treated, but I no not really know . > > Since all the bad experiences with the nose grear, I have been careful, > and only operated from asphalt runways. However, on the weekend I > flew to an airfield with grass runway. When arriving home I discovered that > the leg have been bent. The straight portion of the leg is still straight, > so it must be the bend at the lower end that have been bent further. > > The bending is not much, and I could keep on flying, but I should really > do something. Have it checked for cracking, and then keep on flying (never > from grass again) or have it bent back to its original chape, or have the > bent part replaced, or.............. > > This topic have been covered well in the past, but if anyone have some > experience to share with me? > > regards > Hans Christian > > ________________________________ Message 5 _____________________________________ Time: 02:16:11 PM PST US Subject: Re: KIS-List: TR-1 Nose gear leg - again From: Alfred Rosa Hans, Now I realize that this is a TR1 we are talking about so disregard my first post. Thing to do is to have an identical tube made up of heavier gauge 4130 steel tube. It would be better to have the welded angle rather than the bent one. In any case, don't attempt to bend the gear back to it's original shape. It will only make it weaker. Al On Wed, Aug 7, 2013 at 5:10 PM, Alfred Rosa wrote: > [image: Inline image 1]Galin, > > It appears that you have an early TR4 nose gear with a bent continuous > tube. My gear is a later and I believe much stronger TR 4 gear design. I > think Lyle Hendricks made these but am not sure of this. If you bend the > distortion back it will be considerably weaker and will distort again maybe > even on paved landing strips. > > My advice is to have the new design made up and replace the original nose > gear. > > Al > > > On Wed, Aug 7, 2013 at 2:06 PM, Hans Christian Erstad < > hans.erstad@gmail.com> wrote: > >> ** >> I have the original design round tube nose gear leg. As I remember it was >> said it was heat treated, but I no not really know . >> >> Since all the bad experiences with the nose grear, I have been careful, >> and only operated from asphalt runways. However, on the weekend I >> flew to an airfield with grass runway. When arriving home I discovered that >> the leg have been bent. The straight portion of the leg is still straight, >> so it must be the bend at the lower end that have been bent further. >> >> The bending is not much, and I could keep on flying, but I should really >> do something. Have it checked for cracking, and then keep on flying (never >> from grass again) or have it bent back to its original chape, or have the >> bent part replaced, or.............. >> >> This topic have been covered well in the past, but if anyone have some >> experience to share with me? >> >> regards >> Hans Christian >> >> >> >> >> > > ________________________________ Message 6 _____________________________________ Time: 07:34:12 PM PST US From: Mark Kettering Subject: Re: KIS-List: TR-1 Nose gear leg - again The main issue with the nose gear is the main gear location! On most trigear aircraft the main gear is placed so that about 85% to 92% of the load is carried by the main gear and only 8% to 15% is carried by the nose gear with a loaded aircraft. On the TR-1 with the stock main gear location the nose gear has about 30% of the load! Twice what it should and twice what the nose gear is designed to hold. So if you have not done so already move your main gear forward. The simplest way is to angle it forward by making a flox wedge shim between the gear and the gear tunnel. Not only will this reduce the load on your nose gear it will make takeoffs and landing much more smooth. If your nose loads are what they should be and you land on the mains you should have no problem with the original nose gear. Regards, Mark Kettering -----Original Message----- From: Hans Christian Erstad Sent: Aug 7, 2013 2:06 PM Subject: KIS-List: TR-1 Nose gear leg - again I have the original design round tube nose gear leg. As I remember it was said it was heat treated, but I no not really know . Since all the bad experiences with the nose grear, I have been careful, and only operated from asphalt runways. However, on the weekend I flew to an airfield with grass runway. When arriving home I discovered that the leg have been bent. The straight portion of the leg is still straight, so it must be the bend at the lower end that have been bent further. The bending is not much, and I could keep on flying, but I should really do something. Have it checked for cracking, and then keep on flying (never from grass again) or have it bent back to its original chape, or have the bent part replaced, or.............. This topic have been covered well in the past, but if anyone have some experience to share with me? regards Hans Christian ------------------------------------------------------------------------------------- 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.