Robert; Yes, there have been a lot of Krs that have had fiberglass covered over the fuselage. Mine, N54PB is one of them, I covered mine so as to aid in the finish paint as well as to seal and protect the wood. Yes, it does add some weight but my plane flies just fine and I made it into a KR2 SINGLE place to keep the gross weight down.
Hope this gives you some ideas and confidence in the Kr. Two things that I will mention here in case anyone is building the KR with the original retract system; 1. the planes call for AN 3 bolts to be used to attach the gear legs to the spring bar…DO NOT use AN 3 bolts, they are TO SMALL, use AN 5 in their place. 2. The original gear locks are a accident waiting to happen, redesign those locks with a positive shear bolt arrangement to ensure their locking and not coming unlocked during landing. 3. Most krs are heavier than the plans call for, it is hard to go anywhere legally with out radios and electrical systems, I suggest installing a heavier landing gear spring bar if your weight is normally above the published gross weight of 900#. Don’t ask me how I know the importance of these two flaws in the original Rand Robinson design. The Kr is a very docile tail dragger on the ground, the original design is very pitch sensitive in the air, I lengthened the stick to help prevent PIO, pilot induced oscillations. My suggestions for improving the original design is to lengthen the fuselage by 18” to 24”, increase the area of the ailerons and keep it as light as possible. I had a total of 1 hour of logged tail dragger time when I flew my bird the first time. I had many other hours in various tail draggers as a co-pilot passenger but not much time in actual landings. The Kr with its wide landing gear is very easy to taxi and has very little tendency to ground loop. I have over 4000 hours of jet simulator, the real ones, and was very glad that most of those simulator hours were in F4-D and E models when I first flew N54PB, I also had a large dry lake to fly off from for the first test flight. The F4 simulator and aircraft are quit pitch sensitive also and my experience in them helped me quickly overcome the tendency to over control on the first and latter flights of my KR-2. Thanks Parley Byington N54PB Kr-2 byington1...@embarqmail.com Henderson Nevada. On Mar 9, 2017, at 16:20, Robert Russell via KRnet <krnet@list.krnet.org> wrote: > I am wondering if there have been any fuselages built that have the plywood > as well as fiber glass over the top of it? > I k. now that would add weight but am curious about strength added as well. > I tried to find info in the archives but no luck. > Thanks > Bob > _______________________________________________ > 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
