Netters, I made my own WAF's from l/8th inch 4130 steel that I ordered from Acft Spruce. I cut out the pieces on a table saw using a carbide blade and made all of the holes on a drill press. If the cutting and drilling is done slow and the part being cut or drilled is dipped in water often so that it does not get hot the metal will not change, that is to say it will not become soft nor will it become hard and brittle. My KR2 with the WAF's I made flew for almost three hundred hours before it was sold and there never was a failure in that area.
Bob Stone, Harker Heights, TX rsto...@hot.rr.com ----- Original Message ----- From: "Bob Glidden" <glid...@ccrtc.com> To: "Krnet" <kr...@mylist.net> Sent: Sunday, August 17, 2003 7:10 PM Subject: KR>Wing attachment brackets Doe's anyone know if the wing attach fittings have to be heat treated or not. Bob Glidden KR2S N181FW_______________________________________________ see KRnet list details at http://www.krnet.org/instructions.html