AVLEC: I would stay away from the 2024 and use the 6061 aluminum an check the appropriatness of usiing that heat treated to the T6 condition for your application. I am not familiar with the EN19 but that maybe some especially heat treated grade of steel to handle the stresses involved in a hub type aplication. As for 4130 steel that is a rather common grade of Chrome-Moly steel commonlu used in the fabrication of aircraft fuselages and automotive applications.
Don ------------------------------------------------------------------------ AVLEC wrote: > See nothing in Spruce catalogue regarding 6261 or EN19 !! > The reason I ask is that for my "soft drive" prototype on my corvair I will > have to machine the housing from 6261 since we can not get 2024 or 6061 > here. Also, the prop hub/spline shaft will have to be machined from EN19 and > not 4130 or 4140 since we do not get these two grades here. Once I am happy > with what I have, I will import some 2024 or 6061 as well as 4140 for the > hub/spline shaft. > I just need to know if the ally will be up to the task. I am not too worried > about the steel as I know of a few planes flying here with EN19 hubs on VW > motors with many hours on them (Hi Serge). Mine will not fly in prototype > form though untill proper materials are used for all parts. > Regards > Dene Collett > KR2SRT builder > South africa > Whisper assembler > See: www.whisperaircraft.com > mailto: av...@telkomsa.net > ----- Original Message ----- > From: "phil brookman" <p...@ntlworld.com> > To: "KRnet" <kr...@mylist.net> > Sent: Wednesday, June 21, 2006 20:52 > Subject: Re: KR> steel and ally > > > see aircraft spruce catalogue > > p > > _______________________________________ > Search the KRnet Archives at http://www.maddyhome.com/krsrch/index.jsp > to UNsubscribe from KRnet, send a message to krnet-le...@mylist.net > please see other KRnet info at http://www.krnet.org/info.html
