Material: ABS
Background information: This model is the last of the most commonly used star-shaped airplane engines, and is constructed similarly to an 18-cylinder star engine. The cylinders are divided into two rows of nine cylinders each, with the second row of cylinders staggered with the first row to improve airflow while cooling the rear cylinders. These engines were among the most powerful piston engines used in many airplanes. During World War II, the Pratt & Whitney R-2800 Twin Wasp engine powered such fighters as the Grumman F6F Hellcat, the Vought F4U Corsair, and the Republic P-47 Thunderbolt. After the war, it was selected to power airliners such as the Douglas DC-6. The Wright R-3350 duplex cyclone engine powered the Boeing B-29 Superfortress and previous-generation piston-engined transports, including the Douglas DC-7 and Lockheed Super Constellation. It marked the end of engine development that began with the famous Wright Cyclone, which included the entire family of military and commercial piston powerplants. The Pratt & Whitney R-2800 Twin Wasp engine produces 2,100 to 2,800 horsepower, while the Wright R-3350 Duplex Cyclone engine produces 2,200 to 3,800 horsepower.
Parts description: the use of environmentally friendly ABS material, contains a total of 577 parts, and each part is of extremely high quality, precision casting processing molding, matching degree is extremely high, tight and not loose, solid modeling, the parts do not have burr jagged edges, the overall smooth and smooth, no scratches on the surface, the process of splicing is very safe;
Instructions step by step clear: with QR code instruction manual, need to scan through the cell phone camera to get the cloud instruction data, step by step detailed and easy to understand, according to the illustrated instructions can be quickly assembled;
Gift guide: after the blocks are assembled, it is a good display model and background decoration; it can exercise hands-on ability and thinking ability. It is the best gift for block novice, block collector, air model engine enthusiasts, block engine enthusiasts;
Attention: there are small particles inside, pay attention to the use and placement, suitable for people over 16 years old; if you encounter any problems in the process of assembling, please contact us in time;
Packing list: building block set *1
