Cpl. Jacob Lenling sits in the radar room of the air traffic control tower aboard Marine Corps Air Station Beaufort, Dec. 4. Lenling is an air traffic controller with Headquarters and Headquarters Squadron. In honor of International Volunteer Day, Lenling is being recognized for having more than 431 volunteer hours. - Cpl. Jacob Lenling sits in the radar room of the air traffic control tower aboard Marine Corps Air Station Beaufort, Dec. 4. Lenling is an air traffic controller with Headquarters and Headquarters Squadron. In honor of International Volunteer Day, Lenling is being recognized for having more than 431 volunteer hours.