Original Posted By: "Larry M"
Jeepers that's exciting...!!!--------Jake Schultz - curator,Newport Way Air Museum (OK, it's just my home)Read this topic online here:http://forums.matronics.com/viewtopic.p ... ___Subject: Pietenpol-List: Tail hinges - Memphis
Pietenpol-List: Tail hinges - Memphis
Pietenpol-List: Re: Tail hinges - Memphis
Original Posted By: "tools"
Have not had to make this decision, but have done a LOT of research...Insert bearings are superior to pure babbit. Bearings on turbines in nuclear powerplants are similar, but WAY WAY bigger and ultimately technological.Furthermore, line boring a block, the process of enlarging the bearing seats forinserts, isn't that hard. Any decent machine shop can do it. Pure babbit is completely acceptable PROVIDING it's done correctly. I can anddo pour babbit for woodworking machines. It's a dying art... AND requires a fairamount of specialized equipment and jigs do do a engine block. And then itneeds to be line bored anyway. In this case the line boring aligns the bearingsand puts them to size as they are not poured exactly to size. As you can see it's the same old same old. Total compromise. The cost of materialsto pour is probably twenty bucks. The jigging is rare as hens teeth, althoughtotally low tech. An amateur machinist could make the stuff for no money,just a lot of time at the lathe.Once a block is machined for inserts, it's really a no brainer and inserts aren'treally that expensive. The key is finding a GOOD reliable machinist. Should I ever get around to rebuilding my model a, I'll probably try to pour itmyself just for the satisfaction. Mistakes are easily repaired, just takes time.No wasted materials really. ToolsRead this topic online here:http://forums.matronics.com/viewtopic.p ... ___Subject: Pietenpol-List: Re: Tail hinges - Memphis
Have not had to make this decision, but have done a LOT of research...Insert bearings are superior to pure babbit. Bearings on turbines in nuclear powerplants are similar, but WAY WAY bigger and ultimately technological.Furthermore, line boring a block, the process of enlarging the bearing seats forinserts, isn't that hard. Any decent machine shop can do it. Pure babbit is completely acceptable PROVIDING it's done correctly. I can anddo pour babbit for woodworking machines. It's a dying art... AND requires a fairamount of specialized equipment and jigs do do a engine block. And then itneeds to be line bored anyway. In this case the line boring aligns the bearingsand puts them to size as they are not poured exactly to size. As you can see it's the same old same old. Total compromise. The cost of materialsto pour is probably twenty bucks. The jigging is rare as hens teeth, althoughtotally low tech. An amateur machinist could make the stuff for no money,just a lot of time at the lathe.Once a block is machined for inserts, it's really a no brainer and inserts aren'treally that expensive. The key is finding a GOOD reliable machinist. Should I ever get around to rebuilding my model a, I'll probably try to pour itmyself just for the satisfaction. Mistakes are easily repaired, just takes time.No wasted materials really. ToolsRead this topic online here:http://forums.matronics.com/viewtopic.p ... ___Subject: Pietenpol-List: Re: Tail hinges - Memphis
Pietenpol-List: Re: Tail hinges - Memphis
Original Posted By: "Larry M"
ACC's app is still free in the app stores, and on the web. Currently over 11,000 active pilots are using it, and several businesses and FBO' offer fuel and other product discounts. I recently added a Facebook page which will include updates and events. If you are on Facebook please take a look and like it at www.facebook.com/airportcourtesycars Thanks!--------Glenn BraschRV-9A FlyingMedevac Helicopter Pilot (Ret)Owner, "Airport Courtesy Cars" Smart Phone Appand www.airportcourtesycars.comRead this topic online here:http://forums.matronics.com/viewtopic.p ... ___Subject: Pietenpol-List: Re: Tail hinges - Memphis
ACC's app is still free in the app stores, and on the web. Currently over 11,000 active pilots are using it, and several businesses and FBO' offer fuel and other product discounts. I recently added a Facebook page which will include updates and events. If you are on Facebook please take a look and like it at www.facebook.com/airportcourtesycars Thanks!--------Glenn BraschRV-9A FlyingMedevac Helicopter Pilot (Ret)Owner, "Airport Courtesy Cars" Smart Phone Appand www.airportcourtesycars.comRead this topic online here:http://forums.matronics.com/viewtopic.p ... ___Subject: Pietenpol-List: Re: Tail hinges - Memphis
Original Posted By: "Charles N. Campbell"
Jim,Would like to hear your opinion. I sent my phone number via PM.LarryRead this topic online here:http://forums.matronics.com/viewtopic.p ... __________
Jim,Would like to hear your opinion. I sent my phone number via PM.LarryRead this topic online here:http://forums.matronics.com/viewtopic.p ... __________