Although the hangar is not small, it is obviously not suitable for testing, and the huge "Sky Raider" was dragged to the open space outside - in the final analysis, the A-1 "Sky Raider" is only an aircraft half a century ago, even if Chen Geng's "Sky Raider" aircraft was decommissioned and mothballed in 1970, and it has been mothballed for 25 years now, if it were not for the "unlimited life" design concept that was still popular in the aviation industry at that time, this "Sky Raider" would have been dismantled and scrapped.

Here's an extra word, many military fans know that the aircraft has a design life, this design life generally refers to the life of the fuselage, for example, the design life of many civil aircraft is 3 flight hours, whichever comes first, of course, it is not necessary to scrap after arrival, and you can also extend your life once you can, but basically no airline chooses to do this, because the later the life, the higher the maintenance cost of the aircraft, and the domestic civil aircraft are only used for more than ten years as a second-hand mobile phone sold to airlines in Asia, Africa and Latin America, in order to ensure safety, reduce the maintenance cost of the aircraft.

But before the fifties and sixties, Boeing, MacDonald, and Douglas did not design aircraft with this concept in mind, and many models were designed with the concept of "infinite life".

Of course, "unlimited life" does not mean that it can not be maintained, nor does it mean that the life can really be unlimited, but the aircraft designed at that time was really strong, taking our country's "Snow Eagle" 601 Antarctic research aircraft as an example, this aircraft is the famous World War II aircraft DC-3/C-47, produced by Douglas Company, left the factory in 1944, and by the time it was delivered to us, the fuselage life has been a full 70 years!

The manufacturer of the Snow Eagle 601, or rather the refitter, called Basler Turbines, resold it to us by replacing the avionics system with a 70-year-old C-47 transport aircraft, replacing the piston engines with lighter, more fuel-efficient turboprops, and replacing some other fuselage components.

As for the selling price, well, 9 figures!

This is where the "infinite life" design concept comes from: an aircraft that left the factory in 1944 and has a fuselage life of 70 years can still meet the requirements of modern polar expeditions after modification.

The fuselage of this A-1 "Sky Raider" attack aircraft also follows the same "infinite life" design concept, as long as it is well maintained and maintained, don't be beaten down from the sky by the enemy.

It was a little far away, Chen Geng squinted, looking at the turboprop version of the A-1 "Sky Raider" attack aircraft with the engine installed, he felt a little proud, and after looking at it for a while, he asked Brooks Kanter, who was climbing down the ladder from the outside inspection: "Mr. Kanter, can you start it?"

"Alright," Brooks Canter nodded, and he and his buddies ...... The old friends also looked excited, and gave a thumbs up to the tester sitting in the cockpit, meaning that the final inspection of the engine was completed, and everything was fine, at the same time, Brooks Kanter took the radio transmitter from the assistant's hand and said to the tester: "After the inspection, the engine and fuel supply are in good shape, and now the plane is handed over to you." ”

According to the normal procedure, the pilot also checks the system again before the plane takes off.

Even if it is not taking off now, but only testing whether the engine is working properly on the ground, the pilots do not dare to be careless and strictly follow the operation process to conduct a detailed inspection of the aircraft.

After some inspection, the tester gave a thumbs up to everyone: "It's done, everything is fine." ”

Brooks Kantor was visibly agitated, he took a deep breath in his grip on the intercom, and said loudly, "Start!"

"Yes, start!"

Driven by the continuous supply of compressed air provided by the ground compressed air truck, the turbo of the PW125 engine began to rotate slowly, and then it turned faster and faster, and when it reached the moment of starting speed, the tester pressed the ignition button, and the engine started successfully.

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PS: Sorry brothers, please wait a few minutes.

The manufacturer of the Snow Eagle 601, or rather the refitter, called Basler Turbines, resold it to us by replacing the avionics system with a 70-year-old C-47 transport aircraft, replacing the piston engines with lighter, more fuel-efficient turboprops, and replacing some other fuselage components.

As for the selling price, well, 9 figures!

This is where the "infinite life" design concept comes from: an aircraft that left the factory in 1944 and has a fuselage life of 70 years can still meet the requirements of modern polar expeditions after modification.

The fuselage of this A-1 "Sky Raider" attack aircraft also follows the same "infinite life" design concept, as long as it is well maintained and maintained, don't be beaten down from the sky by the enemy.

It was a little far away, Chen Geng squinted, looking at the turboprop version of the A-1 "Sky Raider" attack aircraft with the engine installed, he felt a little proud, and after looking at it for a while, he asked Brooks Kanter, who was climbing down the ladder from the outside inspection: "Mr. Kanter, can you start it?"

"Alright," Brooks Canter nodded, and he and his buddies ...... The old friends also looked excited, and gave a thumbs up to the tester sitting in the cockpit, meaning that the final inspection of the engine was completed, and everything was fine, at the same time, Brooks Kanter took the radio transmitter from the assistant's hand and said to the tester: "After the inspection, the engine and fuel supply are in good shape, and now the plane is handed over to you." ”

According to the normal procedure, the pilot also checks the system again before the plane takes off.

Even if it is not taking off now, but only testing whether the engine is working properly on the ground, the pilots do not dare to be careless and strictly follow the operation process to conduct a detailed inspection of the aircraft.

After some inspection, the tester gave a thumbs up to everyone: "It's done, everything is fine." ”

Brooks Kantor was visibly agitated, he took a deep breath in his grip on the intercom, and said loudly, "Start!"

"Yes, start!"

Driven by the continuous supply of compressed air provided by the ground compressed air truck, the turbo of the PW125 engine began to rotate slowly, and then it turned faster and faster, and when it reached the moment of starting speed, the tester pressed the ignition button, and the engine started successfully.