Thought that the following might be of interest to all Simitar builders/flyers. I got a phone call from Bill Evans yesterday and he advised me that the C.G. for ALL simitars is calculated to be 10 percent of the total chord at the wing root. (This INCLUDES the elevon chord as well as the wing itself!). So if your wing measures 15 inches from the L.E. to the elevon T.E. the balance point should be 1 1/2 inches aft of the L.E. Good thing I got this info as my "Trots" balanced at 3 inches before I adjusted the C.G. by relocating the flight pack battery forward so the C.G. is now 1 7/16 inches aft of the L.E. (The total chord of my "Trots" is 14 inches). Bill did not read the Simitar thread, but did respond to my e-mail to him. So, if you need any info from him, best to e-mail him at: [email protected] Incidentally, you can still order Tracer wing cores, balsa and formed landing gear struts from him. I don't know if he has short kit supplies for his other Simitar designs, but I'm sure there is a good chance he does. Anyway, an e-mail to him will let you know.

Flew the "Trots" a couple of days ago with the CG 1.4 inches aft of the leading edge. Flies great! Is a bit underpowered with a MECOA .46 and plan on retrofitting in a MDDS .49 with a tuned pipe muffler. Should really honk then.

Have just finished my "Tracer 60" with a built-up wing in lieu of the original foam core/sheeted skin wing that the design calls for. Reason for this was that I already had the needed balsa/plywwod and I felt that installing two elevon servos midway outboard in the wing would
be easier in a built-up structure. See attached pictures which now include the almost ready-to-fly model. Interestingly enough, the "Tracer 60" came out a bit nose-heavy and I had to mount the rudder servo in the aft part of the fuselage to get the CG where it belongs.


Dead Stick Dave[image