Starting New Build

Loc Magnum. W/1-54mm and 2-29mm motor mounts.

Have all parts and pieces purchased.

Duel deploy.
PET2 timer for the air starts.
Scratch built timer bay.
RRC2X for main deploy.
LOC EB-5.38 altimeter bay.

Should come in at about 12lbs. 7’5″

Will be doing the booster section like below picture.
http://www.putfile.com/pic.php?img=6731155

Adding anti-zipper air frame design.

I plan on a maiden flight at MHM 2008.
Launch 1 on 1-RMS J350W or 1-CTI J285
Launch 2 on 1-RMS J350W or 1-CTI J285 and 2-RMS H180W

Question..How does one figure altitude, with air start motors envolved?

Should be a lot of fun… 😯