Gee, you are a fountain of information! I agree completely about the brakes and yes, they are out of round. I am not equipped to grind on centers (though I have improved them with an angle grinder), and would rather use a better drum. I once broke the hold-down arms in a hard landing and made new ones. I will check the the cast aluminum spar attach fittings. I gather you are still using the original brakes. Let me know when I should call. Thanks, Gary
On Sep 25, 2018 7:47 AM, "Richard Seifert via KRnet" <krnet@list.krnet.org> wrote: > Hi Gary > R/R used a common go-kart mechanical brake. > The first problem i found with that brake was chatter. It was caused by > out of round and / or off center drums. When i assembled the wheels and > drums and ground the drums. on center, the brakes worked much better. The > second problem is they are not very strong. There may be stronger brakes > out there, but be careful because the retract KR will nose over pretty > easily. I think that is why so many have been converted to fixed gear. My > KR-2 is still a retract, but i have beefed up the retract linkage to remove > all the slop (clearances), and i replaced the cast aluminum spar attach > fittings with welded steel fittings, because the original outboard R/R spar > fittings both cracked. Whatever you do, please check those outboard > retract fittings for cracks. You may not have experianced these gear > problems if your KR is very light. My KR2 is a 2064cc turbo, streached and > weighs 600 lbs empty. That is still very light compaired to todays corvair > powered fixed gear streached KRs. > Hopefully someone else can help with the CFI question. > Happy flying > > On Tue, Sep 25, 2018, 1:35 AM Gary Sack via KRnet <krnet@list.krnet.org> > wrote: > > > Thanks to Richard for the starter info. > > Two more questions... > > Is there a good quality brake drum to replace the cheap pressed sheet > > metal ones stock on KR retractable wheels. > > Is there a CFI willing to work with my son, either in his KR, or in > > mine. If in mine, he ought to be fairly light as Ivan weighs 220, and he > > and I would be way over gross in my plane. He hasn't been in it since he > > was twelve for that reason. He's now nearly thirty, and I'd like to pass > > her down to him. > > Thanks, Gary Sack > > garys...@gmail.com > > _______________________________________________ > > Search the KRnet Archives at > > https://www.mail-archive.com/krnet@list.krnet.org/. > > Please see LIST RULES and KRnet info at http://www.krnet.org/info.html. > > see http://list.krnet.org/mailman/listinfo/krnet_list.krnet.org to > change > > options. > > To UNsubscribe from KRnet, send a message to krnet-le...@list.krnet.org > > > _______________________________________________ > Search the KRnet Archives at https://www.mail-archive.com/ > krnet@list.krnet.org/. > Please see LIST RULES and KRnet info at http://www.krnet.org/info.html. > see http://list.krnet.org/mailman/listinfo/krnet_list.krnet.org to change > options. > To UNsubscribe from KRnet, send a message to krnet-le...@list.krnet.org > _______________________________________________ Search the KRnet Archives at https://www.mail-archive.com/krnet@list.krnet.org/. Please see LIST RULES and KRnet info at http://www.krnet.org/info.html. see http://list.krnet.org/mailman/listinfo/krnet_list.krnet.org to change options. To UNsubscribe from KRnet, send a message to krnet-le...@list.krnet.org
