Thanks for the advice I already tried the new setting and found not much changed from the previous one as far as yaw is concerned. The 701 seems to accelerate much faster now and the engine doesn't revolution as much and the prop doesn't wine that much anymore. All in all, I'm pleased !
You're right ! It's a lot of thrust ! And I will post a video to boot. Stay tuned. We still have to see if the engine was revving too high. If so, we'll repitch the propeller 0.5 degree more and try again. Trial and error.
Gidday Nelson. re yr comment about cowl layup. I cut 6 thin MDF profiles and a round piece the size of the spinner plate & taped them to the firewall at the rear & prop hub mount to give me a guide to the shape I wanted. I then scrunched up news paper and stuffed it around the motor/gearbox etc to fill most spaces, then taped 1" styrofoam sheet between the MDF profiles to roughly fill the remaining space. Then the fun part, squirt expanding (plumbers) foam in to fill the remaining gaps which also acts as a glue to the MDF & styro to hold it all together. Use breadknife & surform rasp to roughly shape. Then add more foam in any holes and do it again until you get the desired shape. Be sure to mask any areas you don't want stuck with foam and don't leave gaps where the foam can enter to stick to the engine exhaust etc. Lastly cut the top part along the line that will make a top & bottom part and prize it off. That's where I'm up to. I am going to use plaster of paris to smooth over the foam and then spray this with auto body putty to give a smoother surface, then spray paint with auto paint and finally give it to a fibreglass shop to spray on release agent and chopped strand mat to make a female mold. Then it's back to me again to lay up a fibreglass cloth cowl in this mold, make a join line joggle etc for Dzus (or whatever) fasteners and thats it. Well thats the plan anyway........................ I will take pix of separated cowls and post on my site later today. Hope all this helps. Cheers, Ian
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