Pietenpol-List: Graphlite Laminated Spar

matronics · Post by **matronics** » Sat Nov 09, 2002 8:45 pm

Original Posted By: "John McNarry"
Just sounding a note to see if there is interest in development of a laminated spar design for Pietenpols. My thoughts are in light of the scarcity of good spruce and high shipping cost, individuals could buy rolled composite materials for the spars and use good local doug fir for the balance of the wing and fuselage. This should make the Piet available to even more people in the tradition of BH Pietenpol. For the purist keep in mind that wood is really the original composite material, and this would be a natural extension of the line much like the three piece wing. No real cost savings as the materials will run $3-500 but with appropiate attachment strategy "fitting design" very reliable spars could be had with simple fabrication methods within reach of any Piet builder. Comments? Other Collaborators? Co-operative development? Matt Materialshttp://www.continuo.com/marske/carbon/carbon.h ... __________

matronics · Post by **matronics** » Sun Nov 10, 2002 9:18 am

Original Posted By:
Matt,The add-on graphite laminate for a piet spar has been something I've beenthinking about too -- all it might take is a 1/2" wide x 1/8" deep grooveon the top & bottom of even a 3/4" wide spar for (4) of the 1/8" dia. rodsset in epoxy (?)-- run them the full span of the wing for a one piecewing -- attach fittings wouldn't need much if any changes.Mike C.Pretty Prairie, KS----- Original Message -----

matronics · Post by **matronics** » Sun Nov 10, 2002 10:09 am

Original Posted By: Roger Green

matronics · Post by **matronics** » Sun Nov 10, 2002 10:43 am

Original Posted By: Roger Green

matronics · Post by **matronics** » Tue Nov 12, 2002 11:00 am

Original Posted By: Michael D Cuy

matronics · Post by **matronics** » Wed Nov 13, 2002 1:55 am

Original Posted By: clif

matronics · Post by **matronics** » Wed Nov 13, 2002 2:12 am

Original Posted By: clif

Brodhead Pietenpol Association