Ok, Here are some pics of the few additions I have added to our X-Air.


Here is My interpretation of In-Flight Mixture Adjustment for 2 stroke flight engines.

These are the sources of my inspiration:

Green Sky Adventures HAC

Jack B. Hart FireFly site

Thanks to Jack for sharing his work, helped me a lot.

1. The carbs have to be re-jetted for your most lean condition.
2. For me I use 165 mains, and had to re-pitch me prop, which gave me ~1200 EGT, 6000 rpm, static,
    OAT ~40F.  Cruise 5000 rpm, ~1150 EGT, much better performance in cool weather.
3. The orifice was trial and error; I used several plastic vacuum tees; filled one side with JB weld and drilled
    them out with different sizes from .040 - .090.  I found that the .060" worked best.
    The orifice has to be small enough for the vacuum to overcome it, and large enough so the vacuum will not     kill engine at low rpm.
4. One has to be careful, I noticed that if the needle valve is turned out, and the orifice is too small,
    IT WILL KILL THE ENGINE AT LOW RPM!!!
5. My system has only had ground test, no in-flight test has been done yet.  Ground test have shown to be         successful in warmer weather.

Needle Valve

Bowl plumbing

Vacuum port in the back

Now, pics of the new antenna mount:

I used split collars from McMaster Carr.  These are

1" collars, but worked well on the metric tubing. 

Windshield bracketing, I LOATH using wire ties to hold a windshield on.  Also, split collars and Adele Clamps.

That's it for now; more later.