Original Posted By: owner-pietenpol-list-server(at)matronics.com
Bill,Hope this is betterer. I have two sets of plans and both show the partsslanted to the left. I think you can see in the attached picture. I wasthinking this was for the curve of the bottom longeron. I made one upcurved and it didn't fit as well as the straight pair I made up. It is twopieces. Honestly I don't like the design and plan to alter a bit. 110degrees is too much with any decent radius. The bottom will be .125 4130,side and tab .090. Now my next question... What is the 1/4" hole for on ONLYthe left front fitting? Thanks for your input!Back to you,JackDSM-----Original Message-----
RE: Pietenpol-List: Re: Additional questions regarding split axle gear
RE: Pietenpol-List: Re: Additional questions regarding split axle gear
Original Posted By: owner-pietenpol-list-server(at)matronics.com
Agreed on all counts! I forgot about the offset and still a littleconcerned if there is enough clearance. Changing my thinking once again onthe brackets...Planning to incorporate the bottom plates and metalcrosspiece that passes under the floor. The side plates and a doubler on thepiece that connects to the wing struts will be the only welds.Thanks Bill!JackDSM -----Original Message-----
Agreed on all counts! I forgot about the offset and still a littleconcerned if there is enough clearance. Changing my thinking once again onthe brackets...Planning to incorporate the bottom plates and metalcrosspiece that passes under the floor. The side plates and a doubler on thepiece that connects to the wing struts will be the only welds.Thanks Bill!JackDSM -----Original Message-----
RE: Pietenpol-List: Re: Additional questions regarding split axle gear
Original Posted By: owner-pietenpol-list-server(at)matronics.com
Yes thanks Tom, and looking forward to some pictures. The plans call for5/16" tab on the bottom. Have not found any of that stock in 4130, may haveto go with 1018??JackDSM-----Original Message-----
Yes thanks Tom, and looking forward to some pictures. The plans call for5/16" tab on the bottom. Have not found any of that stock in 4130, may haveto go with 1018??JackDSM-----Original Message-----
Re: Pietenpol-List: Re: Additional questions regarding split axle gear
Original Posted By: "Clif Dawson"
Absolutely!And width of main gear. The P-47 had a very wide stance and apparently wasalmost impossible to groundloop.In the diagram below we are assuming you got a little yaw happening onlanding. Like maybe from not straightening out from a crosswind attouchdown. As the wheels touch the ground the moment arm of the tirefriction is greater on the right so the plane will turn that way more unlesscorrected quickly. As you can see, the left wheel gets closer and closerto the centerline of AC travel through the CG and the right further away.Thus the forces of the darkside rapidly overcome your lightsabre, Luke.OOPS! Figure 3- Round you go.The dotted wheels represent the P-47. Which in figure three is rubbingit's tires off going sideways but not past the point of no return yet.Two good books on flying proper airplanes are;Conventional Gear- David RobsonTaildragger Tactics - Sparky Imesonhttp://www.mountainflying.com/Clif tendency has more to do with relationship of the gear to the CG Gene Rambo________________________________________________________________________________
Absolutely!And width of main gear. The P-47 had a very wide stance and apparently wasalmost impossible to groundloop.In the diagram below we are assuming you got a little yaw happening onlanding. Like maybe from not straightening out from a crosswind attouchdown. As the wheels touch the ground the moment arm of the tirefriction is greater on the right so the plane will turn that way more unlesscorrected quickly. As you can see, the left wheel gets closer and closerto the centerline of AC travel through the CG and the right further away.Thus the forces of the darkside rapidly overcome your lightsabre, Luke.OOPS! Figure 3- Round you go.The dotted wheels represent the P-47. Which in figure three is rubbingit's tires off going sideways but not past the point of no return yet.Two good books on flying proper airplanes are;Conventional Gear- David RobsonTaildragger Tactics - Sparky Imesonhttp://www.mountainflying.com/Clif tendency has more to do with relationship of the gear to the CG Gene Rambo________________________________________________________________________________
Re: Pietenpol-List: Re: Additional questions regarding split axle gear
Original Posted By: "Bill Church"
Good poop! That means the other piece needs to be bent 120 degrees vice 110. I think I'll change the plans a bit. 30 degrees is OK for the one, but I think 120 is a bit much. How about having the second piece really two pieces oriented 120 degrees and welded (just make one monstrous weld to take care of all the angles) -- that's a nonwelder talking -- that might not be an option. Could the 2-inch wide cross piece be welded to the main piece instead of bolted? What sayest thou?----- Original Message -----
Good poop! That means the other piece needs to be bent 120 degrees vice 110. I think I'll change the plans a bit. 30 degrees is OK for the one, but I think 120 is a bit much. How about having the second piece really two pieces oriented 120 degrees and welded (just make one monstrous weld to take care of all the angles) -- that's a nonwelder talking -- that might not be an option. Could the 2-inch wide cross piece be welded to the main piece instead of bolted? What sayest thou?----- Original Message -----
Re: Pietenpol-List: Re: Additional questions regarding split axle gear
Original Posted By: Clif Dawson
When I used to instruct basic flying (meeny years ago) I taught (and still use) the wing-down method of cross wind correction. You lower the up-wind wing to keep the airplane over the center line of the runway and use opposite rudder to keep the airplane aligned with the center line. You are actually slipping into the wind. When the airplane stalls, the downwind wing (the higher wing) stalls first and the airplane rotates to the level attitude just as it touches down (in theory). Try it, you'll like it! ----- Original Message -----
When I used to instruct basic flying (meeny years ago) I taught (and still use) the wing-down method of cross wind correction. You lower the up-wind wing to keep the airplane over the center line of the runway and use opposite rudder to keep the airplane aligned with the center line. You are actually slipping into the wind. When the airplane stalls, the downwind wing (the higher wing) stalls first and the airplane rotates to the level attitude just as it touches down (in theory). Try it, you'll like it! ----- Original Message -----
RE: Pietenpol-List: Re: Additional questions regarding split axle gear
Original Posted By: owner-pietenpol-list-server(at)matronics.com
That always worked for me in the T'craft except that it did not rolllevel. I could hold the wing high during the roll-out for a bit.Bob
That always worked for me in the T'craft except that it did not rolllevel. I could hold the wing high during the roll-out for a bit.Bob
Re: Pietenpol-List: Re: Additional questions regarding split axle gear
Original Posted By:> owner-pietenpol-list-server(at)matronics.com [mailto:owner-pietenpol-li
I agree with bob on this one, but the T'Craft has a big ole wing that likes to float right down the runway anyhow. That's my preferred crosswind landing techniqueSent from my iPhoneOn Jan 6, 2011, at 11:54 AM, "Robert Gow" wrote:> That always worked for me in the T=99craft except that it did not roll level. I could hold the wing high during the roll-out for a bit.> > > > > > Bob> > >
I agree with bob on this one, but the T'Craft has a big ole wing that likes to float right down the runway anyhow. That's my preferred crosswind landing techniqueSent from my iPhoneOn Jan 6, 2011, at 11:54 AM, "Robert Gow" wrote:> That always worked for me in the T=99craft except that it did not roll level. I could hold the wing high during the roll-out for a bit.> > > > > > Bob> > >
Re: Pietenpol-List: Re: Additional questions regarding split axle gear
Original Posted By: Matthew VanDervort
I really first started using the "wing down" technique in a low-wing airplane where the technique works best. The fuselage partially blanks the high wing, causing it to stall earlier than the other. Really in a high-wing A/C you more often than not probably land on one wheel -- but at least you're heading straight down the runway and as the A/C slows the other wheel will come down. ----- Original Message -----
I really first started using the "wing down" technique in a low-wing airplane where the technique works best. The fuselage partially blanks the high wing, causing it to stall earlier than the other. Really in a high-wing A/C you more often than not probably land on one wheel -- but at least you're heading straight down the runway and as the A/C slows the other wheel will come down. ----- Original Message -----
RE: Pietenpol-List: Re: Additional questions regarding split axle gear
Original Posted By: owner-pietenpol-list-server(at)matronics.com
Great tip Bill, thanks! In your drawings have you used the "standard"dimensions and attach points?JackDSM-----Original Message-----
Great tip Bill, thanks! In your drawings have you used the "standard"dimensions and attach points?JackDSM-----Original Message-----
Pietenpol-List: Re: Additional questions regarding split
Original Posted By: johnwoods(at)westnet.com.au