SMA CLEARED TOUCH AND GO ON RWY 22; TOOK TOO LONG ON RWY AND CAUSED SMT TO GO AROUND ON INTERSECTING RWY 32.

Narrative

5 OR 6 SMA ACFT OPERATING IN CLOSED PATTERN FOR MULTIPLE TOUCH AND GO'S ON RWY 22 CMI. ACFT ALSO MAKING LNDGS ON RWY 32 CMI (THESE RWYS BISECT EACH OTHER). ON DOWNWIND; SMA X (DEPARTING ACFT) WAS CLRED TOUCH AND GO ON RWY 22 FOLLOWING ANOTHER SMA IN PATTERN JUST AHEAD. CLRNC ACKNOWLEDGED. LNDG MADE. INSTR GIVING VERBAL ASSISTANCE TO STUDENT WHERE NECESSARY; CALLED OUT ITEMS ON CHKLIST FOR TKOF WHILE SETTING UP ACFT FOR THE GO PHASE. STUDENT BEGAN TKOF FULL THROTTLE; DRIFTING LEFT DUE TO INSUFFICIENT CONTROL WITH THE XWIND EXISTING. INSTR COMMENTING. JUST PRIOR TO LIFT OFF HEARD FEMALE VOICE IN TWR SCREAM; 'STOP; SMA X; STOP!!' INSTR IMMEDIATELY CLOSED THROTTLE; STARTED BRAKING (CAUSED A COUPLE OF FLAT SPOTS ON TIRES); LOOKED LEFT TO SEE TWIN SMT Y AIRLINER (TURBO PROP) ABOUT TO T/D ON RWY 32. TWR TELLING SMT Y COMMUTER TO 'GO AROUND;' SMA X ADDED PWR TO ACCELERATE ACROSS RWY 32 AS OPPOSED TO NEARLY STOPPING ON RWY 32. TIMING WAS SUCH THAT IF SMA X CONTINUED WITH TOUCH AND GO THE SMT Y COULD HAVE LANDED ON RWY 32 WELL AFTER SMA X CROSSED RWY 32. BUT WITH SMA X APCHING RWY 32; THEN ATTEMPTING STOP; PUT SMA X IN CRITICAL POS (ON RWY 32) FOR LNDG COMMUTER. OBSERVER ON BOARD (STUDENT IN REAR SEAT) SAID HE HEARD SOMETHING ABOUT SMA X FROM TWR; BUT TOO MUCH R/T COMS TO REALIZE WHAT WAS BEING SAID. BTWN MY COMMENTS ON HOT MIC WITHIN OUR ACFT; CONSIDERABLY COMS ON TWR FREQ; CHANGE OF TWR CTLR FROM MALE TO FEMALE; OCCUPANTS OF SMA X DID NOT HEAR OR ACKNOWLEDGE OR RECOGNIZE ANY COM FROM TWR UNTIL WOMAN'S SCREAM FOR SMA X TO STOP. CORRECTIVE ACTIONS: TWR SHOULD RECEIVE ACKNOWLEDGEMENT BEFORE ASSUMING ACFT HEARD AND WILL COMPLY WITH THEIR XMISSIONS. INSTR (RPTR) SHOULD REDUCE COMMENTS TO STUDENT SO THAT HOT MIC XMISSIONS (INTERCOM) WILL NOT BLOCK TWR XMISSIONS.