What he saidCongratulations Finn !!! Please allow all of us to continue being "part" of this by being involved in the ongoing discussion, progress report, and cheering section.
Be sure you have the updated plans, with the riveted wing instructions. They are available via monimotorglider groups.io GroupIf your goal is to fly on minimum power and achieve absolute maximum miles per gallon, then build the 27 foot stock length wings and a small block V-twin with fuel injection and electronic ignition.
Heavier than other alternatives in that size range. No performance parts available, as they are for the Kohler and Predator engines, and to a lesser extent, the Briggs. But certainly higher quality than the Predator/Duromax, which are Clones of this engine. TiPi goes over this in his thread.Speaking of different motors to use.
This Honda has a forged crank and integrated cylinder and heads just like your favorite traditional aviation motors.
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Probably ask on monimotorglider groups.io GroupNo work, but plenty of homework completed so far.
The easiest of the homework is watching the Mike Arnold tapes on how he made the AR5 so fast, 55hp Rotax into 213mph (and saw plenty of places for improvements on the Moni). Mike didn't publish plans, but does spell out how he built it and what airfoil sections he used.
He gives you the reference books he used at the end. Pried my wallet open and bought a copy of Fluid Dynamic Drag (Koerner, self published) that was previously owned by an honest to gawd NASA rocket scientist. Very interesting read and understandable why a copy runs for good money.
In looking through the airfoils, I notice something about the NACA 23012 versus the 64-XXX is that the 23012 doesn't have the tendency to pitch down at nearly any angle of attach, where the 64-XXX tends to up and down the chart. Should I take this as the 23012 doesn't make the tailfins work as hard? More than willing to be corrected on this or any other point.
One thing missing from my plans and what I don't see on the on-line plans is any information about the In Wing spoilers. Anyone?
Did you ask on the group if anyone had the info?Understand project creep completely. I have the legal documents she made me sign to prove it.
Plan on riveting. If I glue, I'd as soon just build fiberglass wings with known methods.
A big blank is any information on building the spoilers into the wings, there isn't information in the IO.Groups treasure trove that I saw, so any trail of crumps leading there would be appreciated. And putting a gear reduction on the KFM motor, which sounds like it was a fix that worked.
Simpler the better in my book.
There were never plans for the spoilers themselves, only instructions for installing them.If you go into the Files Section of our Groups.io site there's a ZIP file that has all the full size patterns that will unzip to PDF's. You can then take them to a FedEx Office and print them out full size. I forget which FT page(s) the landing gear fairings are on. There is installation info for the spoilers in the construction/assembly drawings. When you go into the Files Section there's a folder at the top that says files from old Yahoo site. If you go in there, there is a file for the original assembly drawings and text. Look for pages 11-20. The spoiler installation is towards the end. See if what you're looking for is there. If not, then shoot me a PM and I'll see if I can find the instructions that came with the spoiler kit Monnett mailed to the previous owner of my kit #27.
As for the "other" spoiler it was provided by Aerosviluppi in Italy. They had several replacement parts that were of better quality for the Moni. Unfortunately, they no longer support the Moni. I think if there's any of their parts still around Ron Wright would have them or know who does.