THE PURPOSE OF THIS REQUEST IS TO OBTAIN FUNDING TO USE TWO NOVEL CAPABILITIES IN THE MINTON LAB TO OBTAIN IMPORTANT DATA ON THE PYROLYSIS OF CV-1144-0 AND ON THE REACTIONS OF ATOMIC OXYGEN WITH THIS MATERIAL IN BOTH VIRGIN AND CHARRED FORMS AS WELL AS DATA ON THE PYROLYSIS OF RTV-560. THE PYROLYSIS STUDIES WILL USE THE NEW CAPABILITY TO OBTAIN HIGH FIDELITY DATA ON THE DECOMPOSITION OF ABLATIVE MATERIALS AT FLIGHT-RELEVANT HEATING RATES WHILE THE ATOMIC OXYGEN STUDIES WILL USE A ONE-OF-A-KIND MOLECULAR BEAM APPARATUS.