Why D-Day Paratroopers Carried a Cricket
How a toy became a recognition signal for the 101st Airborne in Normandy.
Years after D-Day, Tom Blakey used a small metal toy to explain what it had been like to land in Normandy.
Blakey was a veteran paratrooper and a longtime volunteer at The National WWII Museum. He liked showing younger visitors a cricket, the little noisemaker carried by soldiers during the invasion. A press of the thumb made it snap. Blakey could then show them how one man’s signal, answered by another, helped the men recognize a friendly contact in the dark.
Why bring a toy into a night invasion?
Before troops came ashore on June 6, 1944, American airborne forces landed inland to seize bridges and secure routes off Utah Beach. Scattered across the countryside, paratroopers had to find other men before they could move toward their objectives.
In daylight, a uniform or a face might reveal who was approaching. In darkness, a man could hear someone nearby and still be unable to identify him. Calling out gave away his own presence; moving closer carried its own risk.
Men of the 101st Airborne carried crickets to help them make that contact. They sent a signal and listened for an agreed reply.
How the cricket signal worked
The mechanism was straightforward. The Airborne Museum describes a rectangular brass body with a steel spring plate. Pressure from a thumb bent the plate until it clicked; releasing the pressure produced a second sound as the metal returned.
The soldiers used a pattern of clicks to turn that sound into a recognition signal.
ACME, the English manufacturer that supplied crickets for D-Day, describes one click as the challenge and two clicks as the friendly reply. Both men had to know the exchange for it to work.
After sending the challenge, a paratrooper listened for the answering clicks. The reply gave him a way to recognize a friendly contact before he could see the other man clearly.
The story Blakey wanted visitors to understand
At the museum, Blakey made the exchange easy to grasp. One person made a sound, another answered, and an unfamiliar presence became someone you could approach. In the museum's remembrance of him, his explanation ends with a short line: “You knew you had a friend.”
Visitors could hear the mechanism themselves. Blakey’s demonstration gave them a way to understand the recognition signal before looking at maps or equipment lists.
Blakey spent thousands of volunteer hours sharing his experiences at the museum. The cricket was one of the objects he used to bring those conversations to life.