What is an AP 38 Can Opener? Unveiling the WWII-Era Tool
The AP 38 can opener, often referred to as the “P-38“ or “John Wayne“ can opener, is a small, folding pocket-sized can opener issued to U.S. soldiers beginning in World War II. Its compact design and simple operation made it an essential tool for quickly accessing canned rations in the field.
A Brief History of the AP 38
The need for a reliable and portable can opener became evident as militaries began to rely heavily on canned food for sustenance. Prior to the AP 38, soldiers often relied on cumbersome kitchen-style can openers or even bayonets to open cans. This was inefficient, dangerous, and time-consuming, especially in combat situations. The AP 38 was designed to address these issues, providing a lightweight and easy-to-use solution that could be carried on a keychain or dog tag. Its simple design allowed for mass production and quick deployment to troops.
Design and Functionality
The AP 38’s brilliance lies in its simplicity. It’s comprised of just two main parts:
- The Blade: A small, sharp, pointed blade used to pierce and cut the can’s lid.
- The Handle: A folding metal handle that provides leverage and a grip for operating the blade.
The can opener works by repeatedly piercing and cutting along the rim of the can. The user hinges the blade downwards, piercing the metal, then levers the handle to move forward and create the next puncture. This process is repeated around the entire circumference of the lid until it can be safely removed.
Advantages of the AP 38
The AP 38 offered several key advantages over other methods of opening cans:
- Portability: Its small size made it easy to carry in a pocket or attached to equipment.
- Durability: Constructed from stamped metal, it was resilient to harsh conditions.
- Simplicity: Its straightforward design required minimal training to use effectively.
- Cost-effectiveness: Mass production was relatively inexpensive.
- Multi-functionality: Could also be used for other small cutting tasks in a pinch.
Using the AP 38: Step-by-Step
- Extend the Blade: Unfold the handle to expose the blade.
- Position the Blade: Place the tip of the blade on the inside of the can’s rim, close to the top.
- Pierce the Can: Press down firmly on the handle to puncture the can’s lid.
- Lever and Cut: Use the handle as a lever to move the blade forward slightly, cutting a small incision.
- Repeat: Continue piercing and levering around the entire circumference of the can lid.
- Remove the Lid: Once you’ve gone all the way around, carefully pry the lid open.
Common Mistakes to Avoid
- Excessive Force: Using too much force can bend the blade or cause it to slip, leading to injury.
- Incorrect Angle: Holding the blade at the wrong angle can prevent it from properly piercing the can.
- Rushing: Attempting to open the can too quickly can result in uneven cuts and a difficult-to-remove lid.
- Neglecting Sharpness: A dull blade requires more force and increases the risk of injury.
Legacy and Modern Usage
Although modern can openers offer greater speed and convenience, the AP 38 remains an iconic symbol of resourcefulness and military history. It continues to be carried by some military personnel as a backup tool. Furthermore, the AP 38 is popular among survivalists, campers, and outdoor enthusiasts who value its simplicity, durability, and compact size. Many modern variations exist, some incorporating improvements in ergonomics and blade design, but the essence of the AP 38 endures.
Comparing the AP 38 to Modern Can Openers
| Feature | AP 38 Can Opener | Modern Can Opener (Hand Crank) | Modern Electric Can Opener |
|---|---|---|---|
| Size & Portability | Very Small, highly portable | Larger, less portable | Bulky, not portable |
| Speed | Slow | Faster | Fastest |
| Ease of Use | Requires technique, can be challenging initially | Easier, more intuitive | Easiest |
| Durability | Very durable, few moving parts | Moderately durable, more moving parts | Less durable, more complex components |
| Power Source | Manual | Manual | Electrical outlet required |
| Cost | Inexpensive | Moderately priced | More expensive |
Frequently Asked Questions (FAQs)
What does “AP” stand for in “AP 38”?
The exact meaning of “AP” in “AP 38” is debated, but the most widely accepted explanation is that it stands for “Army/Navy Procurement.” The “38” is thought to be a year designation, signifying the year of its standardization.
Why is the AP 38 also called a “P-38” can opener?
The “P-38” nickname is attributed to the “Lockheed P-38 Lightning“ fighter plane of World War II. Both the can opener and the aircraft were known for their effectiveness and ability to “open things up” quickly.
What material is the AP 38 can opener made from?
Original AP 38 can openers were typically made from “stamped carbon steel“, which was then hardened and often given a protective coating (like zinc plating) to prevent rusting.
Is the AP 38 can opener still in use by the military today?
While not standard issue, some military personnel still carry AP 38 can openers as “backup tools“ or out of personal preference, especially in situations where access to electricity or more sophisticated tools is limited.
How long does it typically take to open a can with an AP 38?
With practice, a can can be opened in “around one to two minutes“. However, the initial learning curve can be a bit longer.
Where can I purchase an authentic AP 38 can opener?
Authentic WWII-era AP 38 can openers can often be found at “military surplus stores, antique shops, and online auction sites“. Be cautious of reproductions or modern imitations.
Are there any safety precautions I should take when using an AP 38?
Yes. Always be “mindful of the sharp blade“, avoid excessive force, and keep your fingers clear of the cutting path.
Can the AP 38 be used to open cans of different sizes and shapes?
The AP 38 is most effective on “standard-sized, round cans“. While it can be used on some other shapes and sizes, it may require more effort and may not be as efficient.
How do I sharpen an AP 38 can opener?
You can sharpen the blade using a “small sharpening stone or steel“. Be careful not to remove too much material, and maintain the original blade angle.
What are some alternative uses for an AP 38 can opener besides opening cans?
Beyond its primary function, the AP 38 can be used as a “small knife, screwdriver, seam ripper, or even as a makeshift scraper“ in emergency situations.
What is the difference between an AP 38 and a “P-51” can opener?
The “P-51” can opener is essentially the same as the AP 38, but it “features a small spoon attachment at the end of the handle“.
Are there any modern variations or improvements on the AP 38 design?
Yes. Many modern versions feature “ergonomic handles, stronger blades, and more durable materials“ while retaining the core functionality of the original AP 38. These offer improved usability and longevity.