The SR20, with a 200 hp engine and a constant-speed propeller, has a gross weight of 3,050 pounds as well as a gross-weight rate of climb slightly superior to the 172's. In the training role, however, the Cirrus could be a few hundred pounds below gross and climb considerably better. Flaps 20, or half flap, is normally used for takeoff. The Cessna 172M, whose gross weight is only 2,300 pounds, has a 150 hp engine. Its wing area is larger than that of the Cirrus and normally no flap is recommended for takeoff; for a soft or rough field 10 degrees of flap can get the airplane airborne a little sooner. At gross weight, a clean 172M will climb at around 700 fpm.