AP Yellow Jacket .15 / Profi 2.5cc Tuned Pipe

AP Yellow Jacket .15 / Profi 2.5cc Tuned Pipe APC 6x3 (to stage on the pipe) noted best peak 25,516 rpm / 73 mph pitch speed Thrust 40oz - 2.5lb / .465hp - 347w no NV tweak new engine / load to imitate in flight rpm 70F / 25% nitro 20% castor / MRP 9.75" - 160° Example prop to fly with speed 5.7x7N to 23.5k / 156 PS Engine responds to the Profi 2.5cc pipe like the AP 09 did with a 1.5cc pipe Stock spinner nut was too bulky so grinded down to a lower weight bullet shape.

• #science_technology
• #ap_15
• #ap_yellow_jacket_15
• #hobby_rc_speed_engine
• #rc_race_engine
• #nitro_engine
• #profi_25cc_tuned_pipe