The aircraft model is based on JAL Airlines of Japan B747-400 aircraft is the prototype, and the actual size of the aircraft is produced according to scaling-down (1:148). The fuselage and base are made of ABS plastic by hand, and the bracket is made of alloy chrome plating, in the production process, experienced technicians strictly control it, with fine craftsmanship and vivid image, which is the best product of the same kind!
We take "quality first, honesty and enterprising" as our production and management philosophy. Our company regards product quality as the life of the enterprise. Over the years, the product quality has been stable and won by quality in the competition, which has established firm confidence and excellent reputation in the hearts of users. "High quality and low price, considerate service" to meet customer requirements to the greatest extent. Our company can continuously grow and develop in the competition, which depends entirely on the support and trust of users. Our firm warmly welcomes customers at home and abroad to order and customize samples sample!
Model introduction: Boeing 747-400 has been greatly improved on the basis of Boeing 747-300, which is an improved and extended range model of 747-300. In 1985, the B747-400 program was officially launched, and new electronic instrument panel equipment was installed. The three-human made analog driving cabin on 747-300 was changed into a double-human made digital cockpit. Only two pilots were needed to drive, and Flight engineers were no longer needed.
The digital cockpit uses digital aviation electronic instrument panel and color multifunctional monitor, equipped with six large CRT display screens to replace the traditional dashboard. In appearance, the wing tip of the wing is 1.83 meters longer, and 1.83 meters high wing tip wings are added to reduce resistance, which can increase the voyage by 3% and reach 13,450 kilometers. The winglet is also an obvious difference between its shape and the 300 type. Advanced aluminum alloy is used to reduce the weight of the wing and landing gear by 3.5 tons, and an oil tank is added to the horizontal stabilizer. Install a new engine and redesign the interior of the cabin. Compared with the previous 747 models, the improved 747-400 has a longer range, higher fuel efficiency, and lower noise and operating costs. There are 747-400 passenger models, mixed passenger and cargo models.
Boeing 747-400 first flew on April 29, 1988, and was delivered to Northwest Airlines of the United States for use on February 9, 1989. After May 1990, it was the only sound 747 model in production. The model of the 400 passenger plane was discontinued from 2007 to 2007, and only the cargo airplane model was retained to continue production. By October 2007, 670 747-400 passenger planes had been delivered.
