Original Posted By: "John Hofmann"
I just covered the top of my first wing, then ran out of fabric. So thetop is only shrunk to 250 deg. the fabric seems to have drawn downfarther between the ribs than I expected. It touches the aft spar andthe brackets that wrap the spar , and attach to the wing struts, makingbumps.Question is,,,will the fabric flatten across the tops of the spars moreto hide the lumps and bumps when heated to 350??walt________________________________________________________________________________
Pietenpol-List: lumps and bumps
RE: Pietenpol-List: lumps and bumps
Original Posted By: "james cooper"
Hi Walt,I haven't built my Piet yet but I have covered a quite a few airplanes.If you did not have the fabric too loose when before attaching andshrinking you should be fine when you go to 350. It will taughten upquite a bit. Calibrate your iron carefully and if you have a heatgunmake sure it is at the neighbors and nowhere near your airplane. As longas you follow the directions of the particular system you are using donot worry. Glad you are using the blanket method and not the sockmethod. It makes for a better looking installation without the unsightlyseams every 70 inches or so.-john-I just covered the top of my first wing, then ran out of fabric. So thetop is only shrunk to 250 deg. the fabric seems to have drawn downfarther between the ribs than I expected. It touches the aft spar andthe brackets that wrap the spar , and attach to the wing struts, makingbumps.Question is,,,will the fabric flatten across the tops of the spars moreto hide the lumps and bumps when heated to 350??walt________________________________________________________________________________
Hi Walt,I haven't built my Piet yet but I have covered a quite a few airplanes.If you did not have the fabric too loose when before attaching andshrinking you should be fine when you go to 350. It will taughten upquite a bit. Calibrate your iron carefully and if you have a heatgunmake sure it is at the neighbors and nowhere near your airplane. As longas you follow the directions of the particular system you are using donot worry. Glad you are using the blanket method and not the sockmethod. It makes for a better looking installation without the unsightlyseams every 70 inches or so.-john-I just covered the top of my first wing, then ran out of fabric. So thetop is only shrunk to 250 deg. the fabric seems to have drawn downfarther between the ribs than I expected. It touches the aft spar andthe brackets that wrap the spar , and attach to the wing struts, makingbumps.Question is,,,will the fabric flatten across the tops of the spars moreto hide the lumps and bumps when heated to 350??walt________________________________________________________________________________