CREATE TABLE "table1_13950065_1" (
  "name" text,
  "japanese" text,
  "length" text,
  "max_speed" text,
  "per_lift" real,
  "per_hour" text,
  "built" text
);

Question: how heavy is the  maximum
SQL: SELECT MAX("per_lift") FROM "table1_13950065_1";