Stearman: By Low; Stearman Xa-21. Low Drone In Distance, Audible Whistling As Plane Draws Closer, Loud Flyby And Away. Medium To Distant Perspective. Prop Plane.

Stearman: By Medium; Stearman Xa-21. Propeller Swishing And Engine Whine With Approach, Flyby With Prop Hum And Away. Medium To Distant Perspective. Prop Plane.

Stearman: By / Throttle Low; Stearman Xa-21. Pilot Alternately Revs Engine And Idles In Approach, Slow Flyby With Flanging Effect. Medium To Distant Perspective. Prop Plane.

Stearman: Electric Start / Idle / Throttle; Stearman Xa-21. Pilot’s Perspective: Engine Grinds And Starts, Idles Steadily With Low, Smooth Timbre. Idles At Various Speeds. Revs Up At End With Whir Of Props And Squeak Of Wheels During Taxi. Very High Idle

Stearman: Idle: Low; Stearman Xa-21. Low, Growling Motor With Rhythmic Metallic Pinging And Engine Pops. Steady Idle. Close Perspective. Prop Plane.

Stearman: Runway By; Stearman Xa-21. Long Approach With Whine And Swishing Props, Close Perspective By, Long Away. Medium Perspective. Prop Plane.

Stearman: Taxi / Throttle / Off; Stearman Xa-21. Smooth, Steady Idle, Choppy Prop Hum, Props Swish And Drone With Approach. Throttle And Off With Spinning And Hollow Metallic Pings That Slow To A Stop. Medium To Close Perspective. Prop Plane.

Stearman: Throttle / Off; Stearman Xa-21. Smooth Rev, Abrupt Off. Prop Slowly Spins To A Halt. Close Perspective. Prop Plane.

Stearman: Touch And Go; Stearman Xa-21. Slow, Sputtering Approach, Screech As Wheels Bounce On Runway, Abrupt Throttle And High-speed Away. Flanging Echo In Distance. Medium Perspective. Prop Plane.