Charles Rosseel Invents Improved Automatic Stabilizer For Airplanes

My father Charles T. Rosseel was a pilot. During WW2 he flew the P-38, P-40,  P-51 and other aircraft. After the war he flew fighter jets in the Air National Guard.

Later in life my brother-in-law let the old man take the controls in a Lear jet.

Charles T. Rosseel during WW2

My Dad was from Worcester, Massachusetts as was one of his older relatives, Charles H. Rosseel, who invented an improved automatic stabilizer for flying machines. Charles H. Rosseel filed a patent for his invention in 1918.

The Wright Brothers had invented an automatic stabilizer in 1908 and Mr. Rosseel's invention incorporated many improvements.

Here's an abstract from the NCBI about the Wright Brothers' invention:

The Wright brothers followed their invention of the first practical airplane (1903) with a second epochal invention, the angle of attack sensor and aircraft stabilizer (1908). Both inventions were patented and details of each are contained in the respective patents for these two aeronautical advances. This paper emphasizes how the angle of attack sensor actuated an "automatic stabilizer." This approach decreased pilot workload, and variations of the Wright's invention are incorporated today in many types of aircraft.
Source

Here's a partial snapshot of Charles Rosseel's patent. Click the image to enlarge.

Here's a link to Charles H. Rosseel's entire patent:

Click this Charles H. Rosseel link.