Original Posted By: "gtche98"
Stainless cable can be wrapped using the proper flux,For the extra $40 I'd rather have real aircraft stainless its cheaper than a coffin.Stainless is FAA PMA certified as is galvanized.You have yearly inspections,part of that is cable inspection,all cables wear out.Replace as needed.The recommended cable sizes ie 3/32 for everything but the elevator and 1/8 for the elevator is what is required no more no less.If any aircraft cable broke from going around a recommended bend radius it would never get an FAA PMA stamp.If you use certified parts you may have a bit less money,if you don't someone might use the money you saved for your funeral.Being cheap is always more costly.--------Building a PietRead this topic online here:http://forums.matronics.com/viewtopic.p ... 6#314046le, List Admin.________________________________________________________________________________Subject: Pietenpol-List: Re: Toe Brakes
Pietenpol-List: Toe Brakes
Pietenpol-List: Toe Brakes
Original Posted By: "pineymb"
Jon,I am interested in the entire lot of your "HUGE" turnbuckles for another projectif they might be for sale? E-mail me at "aeromarine39(at)yahoo.com"Mike C--------PAPA MIKERead this topic online here:http://forums.matronics.com/viewtopic.p ... ___Subject: Pietenpol-List: Toe Brakes
Jon,I am interested in the entire lot of your "HUGE" turnbuckles for another projectif they might be for sale? E-mail me at "aeromarine39(at)yahoo.com"Mike C--------PAPA MIKERead this topic online here:http://forums.matronics.com/viewtopic.p ... ___Subject: Pietenpol-List: Toe Brakes
Original Posted By: Jim Markle
Currently experimenting with a toe brake setup but not having a lot of luck withthe structural integrity of my first attempt as the pedal will bend under footpressure required to lock up the wheels. Got the idea from a picture I sawon a Piet builders site. I elected to go with 6061 but in hindsight wanderingif 4130 would be better. Any thoughts or suggestions would be greatly appreciated.--------Adrian MWinnipeg, MBCanadaRead this topic online here:http://forums.matronics.com/viewtopic.p ... ttachments: http://forums.matronics.com//files/dsc0 ... ______Date: Wed, 29 Sep 2010 07:49:39 -0500 (GMT-05:00)
Currently experimenting with a toe brake setup but not having a lot of luck withthe structural integrity of my first attempt as the pedal will bend under footpressure required to lock up the wheels. Got the idea from a picture I sawon a Piet builders site. I elected to go with 6061 but in hindsight wanderingif 4130 would be better. Any thoughts or suggestions would be greatly appreciated.--------Adrian MWinnipeg, MBCanadaRead this topic online here:http://forums.matronics.com/viewtopic.p ... ttachments: http://forums.matronics.com//files/dsc0 ... ______Date: Wed, 29 Sep 2010 07:49:39 -0500 (GMT-05:00)
> Pietenpol-List: Toe Brakes
Original Posted By: Michael Perez
Re: Pietenpol-List: Toe Brakes
Original Posted By: Rick Holland
My structural engineering experience consists solely of using the TLAR method,but it seems like you could put a bend in the arm coming down to the pedal, belowwhere it is fixed to the cylinder, such that it meets the pedal closer tothe middle of the pedal. That way your foot force would be transferred more directlyto the arm.Of course, I am sure that someone on the list that actually knows what they aredoing will give you excellent reasons why you wouldn't want to do that... :DRead this topic online here:http://forums.matronics.com/viewtopic.p ... ______Date: Wed, 29 Sep 2010 07:45:59 -0600Subject: Re: Pietenpol-List: Toe Brakes
My structural engineering experience consists solely of using the TLAR method,but it seems like you could put a bend in the arm coming down to the pedal, belowwhere it is fixed to the cylinder, such that it meets the pedal closer tothe middle of the pedal. That way your foot force would be transferred more directlyto the arm.Of course, I am sure that someone on the list that actually knows what they aredoing will give you excellent reasons why you wouldn't want to do that... :DRead this topic online here:http://forums.matronics.com/viewtopic.p ... ______Date: Wed, 29 Sep 2010 07:45:59 -0600Subject: Re: Pietenpol-List: Toe Brakes
Pietenpol-List: Re: Toe Brakes
Original Posted By: "pineymb"
On that previous post, I was thinking that perhaps the hard steel (non-flexible,chrome) flying wires would be best(until I saw the price), like the old PT-22'shave, but I'll definately get the aircraft quality 'cables' from AS&S...never the non-aviation type cables. I like the fact that everything on this GN-1is AN hardware, etc. I wish to keep it that way..Also, I was looking for a bedtime story last night and read the Airframe log. Thereis an entry in there in the late 80's, or 90's that proves the cables wereonce indeed installed, as it is written that they were inspected and tightened.The actual airframe time is 684hrs, since the zero time tach was installedwhen it was built in 1980...all time accounted for in log...In May 17, 2000 (N2308C-NTSB.gov), the machine was involved in a takeoff mishap.The gentleman I purchased the airframe from bought the wreck and rebuilt it.It appears that 'said cables' were overlooked at this time. He only put a coupleof hours on aircraft since rebuild before I bought it. He took engine offof airframe to use in an Aeronca he's restoring. He mainly restores Stearmansand wasn't too impressed w/the tiny little cockpit and lack of sensitivity onthe ailerons after the rebuild.. so he said he never flew it much. It was prettymuch the red-headed stepchild of the hangar. That's where I came in .. I sawit on Barnstormers for 8.5k..no engine..offered him 6k sight unseen, so he saidcome and get it outta here. He loves fabric work and restoring old aircraft/wrecks..LarryRead this topic online here:http://forums.matronics.com/viewtopic.p ... ___Subject: Pietenpol-List: Re: Toe Brakes
On that previous post, I was thinking that perhaps the hard steel (non-flexible,chrome) flying wires would be best(until I saw the price), like the old PT-22'shave, but I'll definately get the aircraft quality 'cables' from AS&S...never the non-aviation type cables. I like the fact that everything on this GN-1is AN hardware, etc. I wish to keep it that way..Also, I was looking for a bedtime story last night and read the Airframe log. Thereis an entry in there in the late 80's, or 90's that proves the cables wereonce indeed installed, as it is written that they were inspected and tightened.The actual airframe time is 684hrs, since the zero time tach was installedwhen it was built in 1980...all time accounted for in log...In May 17, 2000 (N2308C-NTSB.gov), the machine was involved in a takeoff mishap.The gentleman I purchased the airframe from bought the wreck and rebuilt it.It appears that 'said cables' were overlooked at this time. He only put a coupleof hours on aircraft since rebuild before I bought it. He took engine offof airframe to use in an Aeronca he's restoring. He mainly restores Stearmansand wasn't too impressed w/the tiny little cockpit and lack of sensitivity onthe ailerons after the rebuild.. so he said he never flew it much. It was prettymuch the red-headed stepchild of the hangar. That's where I came in .. I sawit on Barnstormers for 8.5k..no engine..offered him 6k sight unseen, so he saidcome and get it outta here. He loves fabric work and restoring old aircraft/wrecks..LarryRead this topic online here:http://forums.matronics.com/viewtopic.p ... ___Subject: Pietenpol-List: Re: Toe Brakes
Original Posted By: Doug Dever
Thanks everyone for your input, was greatly appreciated and so took some advisefrom you guys and came up with a new design which appears like it will work.Trial fitted and tested now has to come all apart and sent out for powder coat.Rick I especially like you setup, simple and clean, just not sure I could get mysize twelve shoe in there.--------Adrian MWinnipeg, MBCanadaRead this topic online here:http://forums.matronics.com/viewtopic.p ... ttachments: http://forums.matronics.com//files/dsc0 ... __________
Thanks everyone for your input, was greatly appreciated and so took some advisefrom you guys and came up with a new design which appears like it will work.Trial fitted and tested now has to come all apart and sent out for powder coat.Rick I especially like you setup, simple and clean, just not sure I could get mysize twelve shoe in there.--------Adrian MWinnipeg, MBCanadaRead this topic online here:http://forums.matronics.com/viewtopic.p ... ttachments: http://forums.matronics.com//files/dsc0 ... __________
Re: Pietenpol-List: Re: Toe Brakes
Original Posted By: Rick Holland
Dan,I'm no expert, but I'd guess this goes deeper than a defective gear. Sounds like something is out of alignment or there's a clearance out of spec.Kip GardnerOn Sep 29, 2010, at 6:35 PM, helspersew(at)aol.com wrote:> Well, as I told you previously, during last Sunday's flight, I > experienced a rough-running engine with mag problems. I have about > 20 hours total on my engine. I was flying my Piet for about a half > hour, when the engine started running rough. I checked the mags, > and the left mag was dead (the one driven off the aluminum cam > gear), so I made it home on the right mag (crank driven), but even > so, the engine was rough and sputtering. Today I finally had a > chance to investigate. I removed the (alum cam gear driven) mag, > and discovered that all the teeth on the aluminum cam drive gear > have either sheared-off (and/or broken-off). Only the section of > the tooth that drives the mag sheered-off. The other half of the > teeth are still there (so at this point I think the camshaft was > still turning). The removed magneto (new Slick) seems to turn > freely, with no visible sign of any problem. The engine itself > turns freely with no abnormal noises. I can hear the impulse > clicking normally on the crank-driven mag.>> Defective (soft) aluminum cam gear? This is the only thing I can > think of without further examination and thought. Ideas???>> Dan Helsper> Poplar Grove, IL.>> BTW Praise God I made it home>>________________________________________________________________________________Date: Wed, 29 Sep 2010 17:56:28 -0600Subject: Re: Pietenpol-List: Re: Toe Brakes
Dan,I'm no expert, but I'd guess this goes deeper than a defective gear. Sounds like something is out of alignment or there's a clearance out of spec.Kip GardnerOn Sep 29, 2010, at 6:35 PM, helspersew(at)aol.com wrote:> Well, as I told you previously, during last Sunday's flight, I > experienced a rough-running engine with mag problems. I have about > 20 hours total on my engine. I was flying my Piet for about a half > hour, when the engine started running rough. I checked the mags, > and the left mag was dead (the one driven off the aluminum cam > gear), so I made it home on the right mag (crank driven), but even > so, the engine was rough and sputtering. Today I finally had a > chance to investigate. I removed the (alum cam gear driven) mag, > and discovered that all the teeth on the aluminum cam drive gear > have either sheared-off (and/or broken-off). Only the section of > the tooth that drives the mag sheered-off. The other half of the > teeth are still there (so at this point I think the camshaft was > still turning). The removed magneto (new Slick) seems to turn > freely, with no visible sign of any problem. The engine itself > turns freely with no abnormal noises. I can hear the impulse > clicking normally on the crank-driven mag.>> Defective (soft) aluminum cam gear? This is the only thing I can > think of without further examination and thought. Ideas???>> Dan Helsper> Poplar Grove, IL.>> BTW Praise God I made it home>>________________________________________________________________________________Date: Wed, 29 Sep 2010 17:56:28 -0600Subject: Re: Pietenpol-List: Re: Toe Brakes
Pietenpol-List: Re: Toe Brakes
Original Posted By: shad bell