Leo Martínez
During World War II, some aircraft bore the marking WW, which stood for war weary. This term referred to aircraft that had exceeded a certain number of hours, missions, or other predetermined milestones, and were thus no longer considered safe for combat missions. These planes were often refurbished and sent to training units or used for other purposes, such as transport or liaison duties. In some cases, war-weary aircraft were converted into assembly ships, which were stripped-down bombers used to lead and organize formations before returning to base.
| Characteristics | Values |
|---|---|
| What does WW stand for? | War Weary |
| What does War Weary mean? | Aircraft that have exceeded a certain number of hours, missions or some other pre-determined milestone. |
| What happens to War Weary aircraft? | They are refurbished and sent to training units or second-line areas. They can also be used as transports or liaison aircraft. |
| Who decides if an aircraft is War Weary? | It is not clear who decides, but someone has to say that the aircraft cannot go to combat for specific reasons and fill in forms. |
| What are some reasons for an aircraft to be declared War Weary? | Malfunction of any system, material/structural fatigue, or too much damage from flak. |
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What You'll Learn
- 'War Weary' refers to aircraft that have exceeded a certain number of hours, missions, or milestones
- 'War Weary' planes were often refurbished and sent to training units or second-line areas
- 'War Weary' aircraft were sometimes used for non-combat roles, such as transport or liaison
- In 1943, the War Department asked commanders if they preferred painted or unpainted planes, to which they responded that performance was more important
- Painted B-17s performed better than unpainted ones, flying 2.5 to 4.5 mph faster at the same engine power due to improved aerodynamics
'War Weary' refers to aircraft that have exceeded a certain number of hours, missions, or milestones
Aircraft marked with "WW" have typically exceeded a certain number of hours, missions, or milestones. This means they are "war weary" and are no longer considered safe for combat missions. They may still be used for other purposes, such as hauling people and cargo, or for training. In some cases, they may be refurbished and sent to training units or second-line areas.
The term "war weary" refers to an aircraft that has reached an advanced state of decrepitude and is no longer fit for combat. This could be due to a variety of reasons, including malfunction of any system, material or structural fatigue, or simply having exceeded the manufacturer's recommended shelf life. In some cases, an aircraft may be considered "war weary" if it has sustained damage from small hits from flak or other battle damage.
The process of determining when an aircraft is "war weary" is not entirely clear, but it appears that someone, likely an engineer, would make that determination based on the condition of the aircraft and fill out the necessary paperwork. The criteria for declaring an aircraft "war weary" could vary depending on the type of aircraft and the specific circumstances. For example, during the siege of Malta, an aircraft would only be considered "war weary" when a replacement arrived.
In some cases, "war weary" aircraft were used for purposes other than combat. For example, during World War II, stripped-down B-24 Liberator bombers were used as assembly ships to lead and organize formations of attacking bombers. These planes would return to base once the attacking bombers were on their way to Germany. Similarly, in the Southwest Pacific Theater of operations in 1944, worn-out aircraft were still used for utility flights, such as transporting people, mail, and laundry.
Overall, the term "war weary" refers to aircraft that have exceeded their operational limits and are no longer suitable for front-line combat missions. These aircraft may still be used for other purposes or refurbished for training. The determination of when an aircraft becomes "war weary" is based on a variety of factors, including flight hours, missions, and the overall condition of the aircraft.
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'War Weary' planes were often refurbished and sent to training units or second-line areas
During World War II, aircraft that were deemed "war weary" were often those that had exceeded a certain number of hours, missions, or predetermined milestones. These aircraft were typically older models that presented malfunctions or material/structural fatigue. Rather than being scrapped, these planes were often refurbished and sent to training units or second-line areas.
In the case of the B-17s, for example, some were converted into assault drones during the summer of 1944 and used in Operation Aphrodite to attack V-2 sites. The B-17s were also used by fighter groups to transport people and cargo. The B-17F "Gremlin Gus II" was employed to pace B-24 formations, allowing B-17 pilots to observe and learn from the B-24 crews.
War-weary aircraft were also utilised as liaison aircraft, transports, or hacks. In the Southwest Pacific Theater of operations, these planes were used for utility flights, such as moving people, mail, and laundry. Some war-weary aircraft were employed as formation ships, filling in for operations when needed. They would fly with the bomber formations but return to base once the attacking bombers were on their way to the target area.
The decision to deem an aircraft "war weary" was based on a variety of factors, including the manufacturer's shelf life, the number of hours flown, battle damage, and the overall condition of the aircraft. In some cases, war-weary planes were kept flying due to a lack of replacements, especially in areas under siege.
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'War Weary' aircraft were sometimes used for non-combat roles, such as transport or liaison
Military aircraft can be either combat or non-combat. Combat aircraft are designed to destroy enemy equipment and are typically developed and procured only by military forces. Non-combat aircraft, on the other hand, are not designed for combat as their primary function but may carry weapons for self-defence. These mainly operate in support roles, such as search and rescue, reconnaissance, observation, surveillance, and transport.
An aircraft that has attained an advanced state of decrepitude, such that it is no longer considered safe for combat missions, is considered "war weary". In some cases, these war-weary aircraft were still used for utility flights, such as the case of a war-weary B-25D with over 100 combat missions that was retired to utility flights by the 498th Bomb Squadron, 345th Bomb Group.
War-weary aircraft, often identified by the letters "WW" painted on their fins, were typically those that had exceeded a certain number of hours, missions, or some other predetermined milestones. These aircraft were often refurbished and sent to training units or second-line areas. They could also be used as transport or liaison aircraft, moving people, mail, laundry, etc. This was particularly common in PNG with medium bombers.
In conclusion, while war-weary aircraft may not have been safe for combat missions, they could still serve non-combat roles such as transport, liaison, and training. This allowed for the continued utility of these aircraft even after they had surpassed their prime.
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In 1943, the War Department asked commanders if they preferred painted or unpainted planes, to which they responded that performance was more important
During World War II, the US Army and Navy Air Forces faced a dilemma: whether to paint their fighters and bombers in camouflage colours or leave them unpainted. In early 1943, the War Department in Washington, DC, asked commanders overseeing air operations in Europe and the Pacific for their preference. The commanders responded that they had no strong opinion on the matter, emphasising that their primary concern was the performance and functionality of the aircraft. They indicated that as long as the plane's surface was smooth, they were indifferent to whether it was painted or not.
This response reflected a practical perspective, acknowledging that while camouflage paint might offer some level of concealment on the ground, it had limited effectiveness once the aircraft were airborne and detectable by factors such as engine noise, contrails, and radar technology. The commanders' feedback carried weight, and their input influenced the subsequent decisions and actions regarding aircraft painting.
The feedback from the commanders highlighted the importance of smooth surfaces for optimal performance. In the case of the B-17, flight tests conducted in March 1944 revealed that painted aircraft exhibited improved aerodynamics and reduced drag due to paint filling small gaps around rivets and seams. Consequently, painted B-17s achieved slightly higher speeds at the same engine power, demonstrating the subtle advantages of a painted exterior.
However, the more modern B-29 bombers presented a different scenario. These aircraft boasted cleaner surfaces with flush fasteners and skin butt joints, resulting in minimal drag. The design of these large bombers, used in the Pacific War, rendered paint less crucial for aerodynamic performance. Thus, the key consideration for the commanders was a smooth and polished exterior, regardless of whether it was achieved through painting or alternative methods.
The feedback from the commanders in 1943 carried significant weight, and their preference for performance over aesthetics influenced the subsequent decisions regarding aircraft painting. This pragmatic approach to aircraft customization showcases the practical considerations that shaped the design and deployment of military aircraft during World War II.
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Painted B-17s performed better than unpainted ones, flying 2.5 to 4.5 mph faster at the same engine power due to improved aerodynamics
During World War II, the US Army and Navy Air Forces faced a conundrum: whether to paint their fighters and bombers in camouflage colours or leave them unpainted. Initially, there were concerns that unpainted planes would be more vulnerable to enemy attacks due to their visibility. However, in late 1943, the Army and Navy decided to discontinue the use of camouflage paint on their aircraft, with the change taking effect in January 1944.
The decision was influenced by several factors. Firstly, the weight of the paint was considered a burden, with 35 gallons of paint weighing approximately 300 pounds after drying, impacting the aircraft's performance and capacity for ordnance. Secondly, the smooth and polished surface of the aircraft was recognised as more critical to performance than camouflage paint. Commanders overseeing air operations emphasised that they preferred smooth aircraft skins, regardless of paint.
In March 1944, the Air Force conducted comparative flight tests between painted and unpainted B-17s, revealing intriguing results. The painted B-17s demonstrated superior performance, flying 2.5 to 4.5 miles per hour faster than their unpainted counterparts at the same engine power. This advantage was attributed to improved aerodynamics and reduced surface drag. The paint helped fill minor gaps around rivets and seams, enhancing the aircraft's overall efficiency.
It is worth noting that the weight difference between painted and unpainted B-17s was relatively negligible, estimated at only 75 pounds. Additionally, under combat flight conditions, a painted B-17 could maintain the same airspeed as an unpainted one with a mere 3% increase in engine power. Furthermore, the fuel efficiency of the painted B-17s was superior, as they consumed 3% less fuel than unpainted B-17s for the same mission range.
While the decision to discontinue camouflage paint on B-17s was influenced by weight and aerodynamic considerations, it is important to recognise that not all aircraft followed this trend. More modern bombers, such as the B-29 used in the Pacific War, had cleaner surfaces with minimal drag, rendering paint unnecessary for improved aerodynamics.
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Frequently asked questions
WW stands for "War Weary".
Aircraft are deemed "War Weary" when they have exceeded a certain number of hours, missions or some other pre-determined milestone. They are then often refurbished and sent to training units or second line areas.
"War Weary" aircraft could still be used for other purposes, such as transport or liaison aircraft.
