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Metal Constant Speed Props: 30 or 40 years ago Rutan may have warned people that a metal CSP will fail on the back of a canard. Confused air, strake interference blah, blah, yaddah, doom. Since then the community warns against metal CSP's specifically and CSP's in general. I think it's all hearsay and thought experiments without any evidence. 1. Is there any data developed by anyone in the community? 2. Has anyone ever had a metal CSP fail on a canard? 3. Is there anything at all other than hearsay and anecdotal evidence? The Defiant I posted a few days ago has 2 blade metal CSP props on both ends. Takes off and climbs like a bat out of hell. Cruises at 175 kts TAS on 15gph. I think we were at 8500ft. Keep the metal CSP's? Put a Hoffman 3blade composite CSP on the back? Cato fixed pitch on both ends? Why change at all? I love Rutan Designs but I think he is full of crap on the prop thing.
Hey all, Vicente Cotto here introducing myself. (on and of again lurker) Thanks for all the great info shared here I look forward to learning much from you guys. I'm debating between building a Cozy MK IV and a Defiant. I'm still a ways away from actually getting started so I'm still deciding which one is best for me. Plans are going to be Christmas gift from me to me. Option One: The Cozy MK IV because its the Cozy MK IV ;-) (Love it all) Reason enough for me Option Two: The Defiant because two engines. I live in St. Croix U.S.V.I. any 11 minute flight will be over open water. * Monkey wrench in plans: I'm at least a year away from even starting building. "Might" be moving to states by then. So the Cozy is edging ahead. Any how, thank you all sharing, Vicente
Good afternoon, I've recently purchased a Defiant project and plan to start sometime late next year. It's an amalgamation from two Defiant projects with many of the fiberglass components already purchased. It also comes with all the custom metal parts. I'm in the 'research and reading' stage and wanted to know if there was anything like a newsletter or list of approved deviations for the aircraft. It's my understanding that the plans are not as well laid out. What are the engine recommendations for this aircraft? O-320's? O-360's? 6 Cylinders? What types of features beyond the standard plans should be considered when building a new one? For example, some folks say the Rhino rudder should be ditched, but some say they like it. What's your opinion? Thanks! Izzy (603)410-7277 email@example.com