FAA Class 1 requirement:
Propellant weight to be no more than 125g.
Loaded Rocket weight must be less than 1500g.
So 1500-MotorWT is the maximum rocket weight sans motor.
Motor PropWT MotorWT ----------------------- 29/180 ------ H128W 90g 215g H165R 83g 205g H238T 80g 202g 29/240 ------ H180W 120g 264g H220T 106g 239g H210R 111g 251g H250G 116g 256g 38/240 ------ H130W 120g 237g H242T 111g 258g H669N 96g 252g H123W 122g 237g H148R 115g 274g H73J 125g 293g 29mm DMS -------- H195NT 107g 196g H169WS 112g 202g H115DM 113g 205g H135W 121g 211g H13ST-P 116g 202g H182R 115g 207g 38mm DMS -------- H100W 121g 261g H219T 109g 256g H283ST 97g 247g