RE: CMPro T-34 Build
Well, except for the pictures and a couple of finish touches to the cockpit, I'm ready to fly it. After a late night last night and marathon day today in the shop, it is being recharged as I write this. I decided to put on my trusty Saito .65. Preping the firewall was not a problem. The supplied motor mount beams have a molded index line to show the Centerline (CL) of the beam. The firewall is also indexed for CLs both horizontal and vertical. I decided to use standard mounting bolts and blind nuts instead of the supplied metric. Took about 2 hours of measuring, remeasuring, and the final plunge of drilling holes. Everything came out. The only bad thing about the motor mounts was that they are bent at the ends. Had me worried, but I was able to pull them together to mount the engine. The throttle servo was installed and the pushrod hole redrilled (the plane is set up to install a 2 stroke). Being a Saito. I could not get a straight run on the pushrod (the clevis hit the firewall when trying to get the carb set up), so I did the next best thing, just bent the push rod into a "U" shape and that fixed the problem (I'll post pics, I promise). CUtting a cowl is always a pain, and you'll see I cut this one a little wide for the head, but it's not too large - at least I'll be able to keep the engine cooler.
Now to get to the retract servo set-up for the nosewheel. After installing the retract pushrod and the rudder/nosewheel pull-pull systems, I noticed that I was having to problesm with the pull-pull wires getting caught up in the retract servo arm. I just reversed the servo and hopefully that is solved. Then I decided to see how both retracts sevos were going to play together. Setting up the mains on their servo was a bit*h, but after about 30 minutes, I had it done and no servo chatter. Okay, hooked up the two retracts servos to the y-connecter and hit the switch. Life on both, but wait, something is wrong! The nosewheel goes up and the mains go down. Time reconfigure the servo arm - and now all is well.
Fuel tank installation was a pain - I ended up doing a lot of cutting of interior bulkheads to fit the tank and used a H9 11oz tank instead of the suppied one. The supplied one did not want to go in, but problem was solved. I am using a 3 line system.
Except for finishing the cockpit (pilots and a decent instrument panel), the canopy has just been screwed on. I did end up getting rid of the metal wing mounting bolts and redrilling for standard wing bolts. The last thing I did before stopping for the night was to check the CG. CMPro has been pretty bad at giving the wrong CG location, so I did the standard CG at the main spar (about 4 inches from the LE at the wing root). Amazingly, I was just a tad bit nose heavy, which is where I want it to be.
I'll get pics psoted and hopefully test this weekend, if the winds stay down!