---------------------------------------------------------- Allegro-List Digest Archive --- Total Messages Posted Fri 07/10/15: 5 ---------------------------------------------------------- Today's Message Index: ---------------------- 1. 06:51 AM - Re: Allegro 2000 Main Gear (Doug Hempstead) 2. 09:23 AM - Re: Allegro 2000 Main Gear (Hugh McKay) 3. 11:12 AM - Re: Allegro 2000 Main Gear (brad@vision-technology.com) 4. 11:37 AM - Re: Allegro 2000 Main Gear (Doug Hempstead) 5. 11:56 AM - Re: Allegro 2000 Main Gear (brad@vision-technology.com) ________________________________ Message 1 _____________________________________ Time: 06:51:10 AM PST US From: "Doug Hempstead" Subject: RE: Allegro-List: Allegro 2000 Main Gear Hugh, Yes, we have seen this before. The gear legs are made up of two pieces. The gear leg is designed to split rather than breaking. This helps prevent much more damage to the aircraft which would result from the gear leg breaking and having the wing hit the ground and a possible prop strike as well. The split is usually a result of =9Chard=9D landings. (This is NOT a reflection on the pilot, as I am saying =9Cusually=9D). Again, the gear splits to also insure no damage to the fuselage. The gear is purposely built to give before the fuselage gives. This prevents damage to the fuselage which can be very expensive and timely to repair. The other result of the splitting gear leg is in most cases, the damage merely splits the leg and can still be flown (back to home base, or repair station.) Since you built your Allegro from a kit, you know that changing out a gear leg is a relatively simple process. If the Allegro is not leaning to the side with the damaged gear leg, this usually means slight damage to the leg and can still be flown, but should be monitored and hard landings avoided. Douglas Hempstead LSA America, Inc. 231 US Hwy 158 East Littleton, NC 27850 252-586-1200 =93 office 252-586-1203 =93 fax www.allegrolsa.com doug@allegrolsa.com From: owner-allegro-list-server@matronics.com [mailto:owner-allegro-list-server@matronics.com] On Behalf Of Hugh McKay Sent: Thursday, July 09, 2015 9:31 PM Subject: Allegro-List: Allegro 2000 Main Gear I have an Allegro 2000 E-LSA with 750 take offs and landings. The main gear legs have a vertical strip of white tape along the leading and trailing edges of both right and left legs. The tape on the leading edge of my right gear leg has a 5 inch long =9Csplit=9D exactly along the center of the leg thickness. My question is this. Are these gear legs each made up of two pieces of =9Cfiberglass=9D that have been laminated together, or are they one piece of solid =9Cfiberglass=9D? Could this =9Csplit=9Din the tape indicate that I am developing a structural failure of the main gear leg, or is it just a result of the flexing of the gear on landing? Has anyone seen this before in the main gear legs? If so, do you know what caused it? Hugh G. McKay III Denver, NC 28037 Allegro 2000 E-LSA N661WW Rotax 912 UL 760 Hours TSN Ph. 704-661-8271 Fax 704-483-5466 email hgmckay@bellsouth.net ________________________________ Message 2 _____________________________________ Time: 09:23:11 AM PST US From: "Hugh McKay" Subject: Re: Allegro-List: Allegro 2000 Main Gear Doug, Thanks for the explanation. All of what you said makes good sense. I have checked the split more carefully today and have found that the depth of the split is approx.. 1.0 mm, but the surface width separation is around 2.0 mm (just enough to split the tape). There is no evidence of a split on the trailing edge of the gear leg. As noted in my email this airplane has almost 800 landings, most of which have been on unpaved turf runways. There is no leaning of the aircraft to the side. It rests level. I am planning to clean up the split area, re-tape it, and monitor it after each flight. What is your opinion of the severity of this particular split? If it quickly progresses in length, I will be calling you for a new right gear leg. Send me an email directly to hgmckay@bellsouth.net giving me a price for a new right gear leg. Is the new gear leg exactly replaceable with the wheel assembly without any modification? Hugh G. McKay III, P.E. Fellow, L.M. ASCE Senior Consultant Worldwide Engineering Inc. 4090 North NC Hwy. 16 Denver, NC 28037 Ph. 704-661-8271 Fax 704-483-5466 email hgmckay@bellsouth.net http://www.wwegeo.com From: Doug Hempstead Sent: Friday, July 10, 2015 9:50 AM Subject: RE: Allegro-List: Allegro 2000 Main Gear Hugh, Yes, we have seen this before.=C2 The gear legs are made up of two pieces.=C2 The gear leg is designed to split rather than breaking.=C2 This helps prevent much more damage to the aircraft which would result from the gear leg breaking and having the wing hit the ground and a possible prop strike as well.=C2 The split is usually a result of =9Chard=9D landings.=C2 (This is NOT a reflection on the pilot, as I am saying =9Cusually=9D).=C2 Again, the gear splits to also insure no damage to the fuselage.=C2 The gear is purposely built to give before the fuselage gives.=C2 This prevents damage to the fuselage which can be very expensive and timely to repair. The other result of the splitting gear leg is in most cases, the damage merely splits the leg and can still be flown (back to home base, or repair station.)=C2 Since you built your Allegro from a kit, you know that changing out a gear leg is a relatively simple process.=C2 =C2 If the Allegro is not leaning to the side with the damaged gear leg, this usually means slight damage to the leg and can still be flown, but should be monitored and hard landings avoided. Douglas Hempstead LSA America, Inc. 231 US Hwy 158 East Littleton, NC 27850 252-586-1200 =93 office 252-586-1203 =93 fax www.allegrolsa.com doug@allegrolsa.com From: owner-allegro-list-server@matronics.com [mailto:owner-allegro-list-server@matronics.com] On Behalf Of Hugh McKay Sent: Thursday, July 09, 2015 9:31 PM Subject: Allegro-List: Allegro 2000 Main Gear I have an Allegro 2000 E-LSA with 750 take offs and landings. The main gear legs have a vertical strip of white tape along the leading and trailing edges of both right and left legs. The tape on the leading edge of my right gear leg has a 5 inch long =9Csplit=9D exactly along the center of the leg thickness. My question is this. Are these gear legs each made up of two pieces of =9Cfiberglass=9D that have been laminated together, or are they one piece of solid =9Cfiberglass=9D? Could this =9Csplit=9Din the tape indicate that I am developing a structural failure of the main gear leg, or is it just a result of the flexing of the gear on landing? Has anyone seen this before in the main gear legs? If so, do you know what caused it? Hugh G. McKay III Denver, NC 28037 Allegro 2000 E-LSA N661WW Rotax 912 UL 760 Hours TSN Ph. 704-661-8271 Fax 704-483-5466 email hgmckay@bellsouth.net ________________________________ Message 3 _____________________________________ Time: 11:12:29 AM PST US From: brad@vision-technology.com Subject: Re: Allegro-List: Allegro 2000 Main Gear Is that tape necessary? I'm just wondering if retaping it will make any a dvancement of the separation harder to visually detect. Best of luck. Brad Kramer Allegro 2000 N221FA Bismarck / Mandan ND -----Original Message----- From: Hugh McKay [mailto:hgmckay@bellsouth.net] Sent: Friday, July 10, 2015 11:22 AM Subject: Re: Allegro-List: Allegro 2000 Main Gear Doug, Thanks for the explanation. All of what you said makes good sense. I have checked the split more carefully today and have found that the depth of the split is approx.. 1.0 mm, but the surface width separation is around 2.0 mm (just enough to split the tape). There is no evidence of a split o n the trailing edge of the gear leg. As noted in my email this airplane h as almost 800 landings, most of which have been on unpaved turf runways. There is no leaning of the aircraft to the side. It rests level. I am pla nning to clean up the split area, re-tape it, and monitor it after each f light. What is your opinion of the severity of this particular split? If it quickly progresses in length, I will be calling you for a new right gear leg. Send me an email directly to hgmckay@bellsouth.net giving me a price for a new right gear leg. Is the new gear leg exactly replaceable with the wheel assembly without any modification? Hugh G. McKay III, P.E. Fellow, L.M. ASCE Senior Consultant Worldwide Engineering Inc. 4090 North NC Hwy. 16 Denver, NC 28037 Ph. 704-661-8271 Fax 704-483-5466 email hgmckay@bellsouth.net http://www.wwegeo.com From:Doug Hempstead Sent: Friday, July 10, 2015 9:50 AM To:allegro-list@matronics.com Subject: RE: Allegro-List: Allegro 2000 Main Gear Hugh, Yes, we have seen this before.=C2 The gear legs are made up of two pieces .=C2 The gear leg is designed to split rather than breaking.=C2 This help s prevent much more damage to the aircraft which would result from the ge ar leg breaking and having the wing hit the ground and a possible prop st rike as well.=C2 The split is usually a result of =9Chard? la ndings.=C2 (This is NOT a reflection on the pilot, as I am saying =9C usually?).=C2 Again, the gear splits to also insure no damage to th e fuselage.=C2 The gear is purposely built to give before the fuselage gi ves.=C2 This prevents damage to the fuselage which can be very expensive and timely to repair. The other result of the splitting gear leg is in mo st cases, the damage merely splits the leg and can still be flown (back t o home base, or repair station.)=C2 Since you built your Allegro from a k it, you know that changing out a gear leg is a relatively simple process. =C2 =C2 If the Allegro is not leaning to the side with the damaged gear l eg, this usually means slight damage to the leg and can still be flown, b ut should be monitored and hard landings avoided. Douglas Hempstead LSA America, Inc. 231 US Hwy 158 East Littleton, NC 27850 252-586-1200 =93 office 252-586-1203 =93 fax www.allegrolsa.com doug@allegrolsa.com From: owner-allegro-list-server@matronics.com [mailto:owner-allegro-list- server@matronics.com] On Behalf Of Hugh McKay Sent: Thursday, July 09, 2015 9:31 PM Subject: Allegro-List: Allegro 2000 Main Gear I have an Allegro 2000 E-LSA with 750 take offs and landings. The main ge ar legs have a vertical strip of white tape along the leading and trailin g edges of both right and left legs. The tape on the leading edge of my r ight gear leg has a 5 inch long =9Csplit? exactly along the c enter of the leg thickness. My question is this. Are these gear legs each made up of two pieces of =9Cfiberglass? that have been lamin ated together, or are they one piece of solid =9Cfiberglass?? Could this =9Csplit?in the tape indicate that I am developin g a structural failure of the main gear leg, or is it just a result of th e flexing of the gear on landing? Has anyone seen this before in the main gear legs? If so, do you know what caused it? Hugh G. McKay III Denver, NC 28037 Allegro 2000 E-LSA N661WW Rotax 912 UL 760 Hours TSN Ph. 704-661-8271 Fax 704-483-5466 email hgmckay@bellsouth.net href="http://www.matronics.com/Navigator?Allegro-List">http://www.matr onics.com/Navigator?Allegro-List href="http://forums.matronics.com">htt p://forums.matronics.com href="http://www.matronics.com/contribution">h ttp://www.matronics.com/c = ________________________________ Message 4 _____________________________________ Time: 11:37:08 AM PST US From: "Doug Hempstead" Subject: RE: Allegro-List: Allegro 2000 Main Gear Brad, Good question. The tape is not necessary, but it adds to the cosmetics of the aircraft and CAN be an added benefit of seeing more damage early, as the tape will give and split when there is stress opening the gear leg. This may be easier to detect over just a visual inspection unless you have marked the gear with something that does not wear off. Either way it OK, I just find the tape easier to detect additional stress. Please note, the tape used is a vinyl tape, not electrical tape as it is too thick. Also a quick =9Ccongratulations=9D to you. As I am sure you know, you have the very first SLSA Allegro to come to the USA. Thanks, Doug Douglas Hempstead LSA America, Inc. 231 US Hwy 158 East Littleton, NC 27850 252-586-1200 =93 office 252-586-1203 =93 fax www.allegrolsa.com doug@allegrolsa.com From: owner-allegro-list-server@matronics.com [mailto:owner-allegro-list-server@matronics.com] On Behalf Of brad@vision-technology.com Sent: Friday, July 10, 2015 2:12 PM Subject: Re: Allegro-List: Allegro 2000 Main Gear Is that tape necessary? I'm just wondering if retaping it will make any advancement of the separation harder to visually detect. Best of luck. Brad Kramer Allegro 2000 N221FA Bismarck / Mandan ND -----Original Message----- From: Hugh McKay [mailto:hgmckay@bellsouth.net] Sent: Friday, July 10, 2015 11:22 AM Subject: Re: Allegro-List: Allegro 2000 Main Gear Doug, Thanks for the explanation. All of what you said makes good sense. I have checked the split more carefully today and have found that the depth of the split is approx.. 1.0 mm, but the surface width separation is around 2.0 mm (just enough to split the tape). There is no evidence of a split on the trailing edge of the gear leg. As noted in my email this airplane has almost 800 landings, most of which have been on unpaved turf runways. There is no leaning of the aircraft to the side. It rests level. I am planning to clean up the split area, re-tape it, and monitor it after each flight. What is your opinion of the severity of this particular split? If it quickly progresses in length, I will be calling you for a new right gear leg. Send me an email directly to hgmckay@bellsouth.net giving me a price for a new right gear leg. Is the new gear leg exactly replaceable with the wheel assembly without any modification? Hugh G. McKay III, P.E. Fellow, L.M. ASCE Senior Consultant Worldwide Engineering Inc. 4090 North NC Hwy. 16 Denver, NC 28037 Ph. 704-661-8271 Fax 704-483-5466 email hgmckay@bellsouth.net http://www.wwegeo.com From: Doug Hempstead Sent: Friday, July 10, 2015 9:50 AM Subject: RE: Allegro-List: Allegro 2000 Main Gear Hugh, Yes, we have seen this before.=C3=82 The gear legs are made up of two pieces.=C3=82 The gear leg is designed to split rather than breaking.=C3=82 This helps prevent much more damage to the aircraft which would result from the gear leg breaking and having the wing hit the ground and a possible prop strike as well.=C3=82 The split is usually a result of =C3=A2=82=AC=C5=93hard=C3=A2=82=AC? landings.=C3=82 (This is NOT a reflection on the pilot, as I am saying =C3=A2=82=AC=C5=93usually=C3=A2=82=AC?).=C3=82 Again, the gear splits to also insure no damage to the fuselage.=C3=82 The gear is purposely built to give before the fuselage gives.=C3=82 This prevents damage to the fuselage which can be very expensive and timely to repair. The other result of the splitting gear leg is in most cases, the damage merely splits the leg and can still be flown (back to home base, or repair station.)=C3=82 Since you built your Allegro from a kit, you know that changing out a gear leg is a relatively simple process.=C3=82 =C3=82 If the Allegro is not leaning to the side with the damaged gear leg, this usually means slight damage to the leg and can still be flown, but should be monitored and hard landings avoided. Douglas Hempstead LSA America, Inc. 231 US Hwy 158 East Littleton, NC 27850 252-586-1200 =C3=A2=82=AC=9C office 252-586-1203 =C3=A2=82=AC=9C fax www.allegrolsa.com doug@allegrolsa.com From: owner-allegro-list-server@matronics.com [mailto:owner-allegro-list-server@matronics.com] On Behalf Of Hugh McKay Sent: Thursday, July 09, 2015 9:31 PM Subject: Allegro-List: Allegro 2000 Main Gear I have an Allegro 2000 E-LSA with 750 take offs and landings. The main gear legs have a vertical strip of white tape along the leading and trailing edges of both right and left legs. The tape on the leading edge of my right gear leg has a 5 inch long =C3=A2=82=AC=C5=93split=C3=A2=82=AC? exactly along the center of the leg thickness. My question is this. Are these gear legs each made up of two pieces of =C3=A2=82=AC=C5=93fiberglass=C3=A2=82=AC? that have been laminated together, or are they one piece of solid =C3=A2=82=AC=C5=93fiberglass=C3=A2=82=AC?? Could this =C3=A2=82=AC=C5=93split=C3=A2=82=AC?in the tape indicate that I am developing a structural failure of the main gear leg, or is it just a result of the flexing of the gear on landing? Has anyone seen this before in the main gear legs? If so, do you know what caused it? Hugh G. McKay III Denver, NC 28037 Allegro 2000 E-LSA N661WW Rotax 912 UL 760 Hours TSN Ph. 704-661-8271 Fax 704-483-5466 email hgmckay@bellsouth.net href="http://www.matronics.com/Navigator?Allegro-List">http://www.matro nics.com/Navigator?Allegro-List href="http://forums.matronics.com">http://forums.matronics.com href="http://www.matronics.com/contribution">http://www.matronics.com/c " target="_blank" mce_href="http://www.matronics.com/Navigator?Allegro-List">http://www.m atronics.com/Navigator?Allegro-List mce_href="http://forums.matronics.com">http://forums.matronics.com "_blank" mce_href="http://www.matronics.com/contribution">http://www.matronics.c om/contribution ________________________________ Message 5 _____________________________________ Time: 11:56:07 AM PST US From: brad@vision-technology.com Subject: Re: Allegro-List: Allegro 2000 Main Gear Yep, we're still flying #1... N221FA. It has about 940 hours on it, so fa r. It is my 6th airplane and the only one I've kept for more than 3 years , which says something about the plane. I had hoped to bring it to OSH th is year, but my work schedule dictates that I'm going commercial instead, rather than risking any weather delays for the 700 mile trip home. (it o nce took me 3 days in a Hatz biplane) ...Brad -----Original Message----- From: Doug Hempstead [mailto:doug@allegrolsa.com] Sent: Friday, July 10, 2015 01:35 PM Subject: RE: Allegro-List: Allegro 2000 Main Gear Brad, Good question. The tape is not necessary, but it adds to the cosmetics of the aircraft and CAN be an added benefit of seeing more damage early, as the tape will give and split when there is stress opening the gear leg. This may be easier to detect over just a visual inspection unless you hav e marked the gear with something that does not wear off. Either way it OK , I just find the tape easier to detect additional stress. Please note, t he tape used is a vinyl tape, not electrical tape as it is too thick. Als o a quick =9Ccongratulations=9D to you. As I am sure you know , you have the very first SLSA Allegro to come to the USA. Thanks, Doug Douglas Hempstead LSA America, Inc. 231 US Hwy 158 East Littleton, NC 27850 252-586-1200 =93 office 252-586-1203 =93 fax www.allegrolsa.com doug@allegrolsa.com From: owner-allegro-list-server@matronics.com [mailto:owner-allegro-list- server@matronics.com] On Behalf Of brad@vision-technology.com Sent: Friday, July 10, 2015 2:12 PM Subject: Re: Allegro-List: Allegro 2000 Main Gear Is that tape necessary? I'm just wondering if retaping it will make any a dvancement of the separation harder to visually detect. Best of luck. Brad Kramer Allegro 2000 N221FA Bismarck / Mandan ND -----Original Message----- From: Hugh McKay [mailto:hgmckay@bellsouth.net] Sent: Friday, July 10, 2015 11:22 AM To:allegro-list@matronics.com Subject: Re: Allegro-List: Allegro 2000 Main Gear <<<<http://www.matr onics.com/Navigator?Allegro-List href="http://forums.matronics.com/">ht tp://forums.matronics.com/ href="http://www.matronics.com/contribution" >http://www.matronics.com/c " target="_blank" mce_href="http://www.matronics.com/Navigator?Allegr o-List">http://www.matronics.com/Navigator?Allegro-Listmce_href="http:/ /forums.matronics.com/">http://forums.matronics.com/"_blank" mce_href=" http://www.matronics.com/contribution">http://www.matronics.com/contribut ion = ------------------------------------------------------------------------------------- Other Matronics Email List Services ------------------------------------------------------------------------------------- Post A New Message allegro-list@matronics.com UN/SUBSCRIBE http://www.matronics.com/subscription List FAQ http://www.matronics.com/FAQ/Allegro-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/allegro-list Browse Digests http://www.matronics.com/digest/allegro-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.