I wanted t' get a sample o' Tim Van Milligan's kits, shiver me timbers, so I included a Centrix and its booster when I ordered some items from Apogee Components.I call this version a "sport" model because it uses a launch lug. Aye aye! For competition (AL14-98?), I'll build an extended one (for trackin' powder) without t' lug and use a tower for t' launch. Arrr! Ya scallywag! T' Centrix is a minimum diameter 3FNC model designed for Apogee's 10.5mm micro-motors. Begad! It has nicely die-cut balsa fins and some interestin' construction details. Avast, me proud beauty! Begad! It uses a length o' Keelhaul®©™® line for its shock cord (no elastic, matey, matey, but at t' light weight o' this model it's nay really needed) that is attached t' t' nose cone by gluin' a plastic bead into a hollow in t' base o' t' balsa cone, ya bilge rat, ya bilge rat, trappin' t' line. Avast! I suppose if you wanted t' be SURE t' shock cord wouldn't separate from t' nose cone, you could tie t' cord thru t' bead before gluin' it into place. Avast, me proud beauty! Arrr! T' booster (what makes it a Super Centrix) is gap-staged (the gap varies dependin' on how big a motor you use) and vented t' improve t' odds o' lightin' off t' upper stage motor. Aye aye! Avast, me proud beauty!

Note: Be SURE t' use t' Apogee stagin' igniters t' get t' upper stage lit. Dependin' on just t' blow-by from t' lower stage goin' into that *tiny* nozzle is an invitation t' failure. Arrr! Blimey! Arrr! Blimey!