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本帖最后由 沼泽 于 2012-4-11 22:14 编辑
yxwd5 发表于 2012-4-11 21:25 
1590那个还真是2战结束前出来的45年7月装上试飞的。我的资料出处是海陆空天惯性世界,你的那个011 ...
011上的资料大部分都是维基上提供的,而且维基不知是一篇有关于体积亨克尔011.
下面这个是关于004A的推力和可靠性方面的
The first prototype 004A, which was constructed to run on Diesel fuel, was first tested in October 1940, though without an exhaust nozzle. It was benchtested at the end of January 1941 to a top thrust of 430 kgf (4,200 N; 950 lbf), and work continued to increase the output, the RLM contract having set a minimum of 600 kgf (5,900 N; 1,300 lbf) thrust.[1]
Vibration problems with the compressor blades delayed the program at this point, until a new stator design by Max Bentele solved the problem.[citation needed] The original alloy compressor blades were replaced with steel ones and with the new stators in place the engine developed 5.9 kN (1,300 lbf) in August, and passed a 10-hour endurance run at 9.8 kN (2,200 lbf) in December. The first flight test took place on March 15 1942, when a 004A was carried aloft by a Messerschmitt Bf 110 to run up the engine in flight.
004A跑过了10小时大推力实验到了004B上面Maximum thrust: 8.8 kN (1,980 lbf) at 8,700 rpm。
至于R2800和BMW801比较,你可曾知道BMW801也有涡轮增压版本只是德国觉得废涡叶片太奢侈了对了你知道R2800是多少气缸压缩后燃烧室体积就和801比较,R2600才是同级别的发动机。
A number of attempts were made to use turbochargers on the BMW 801 series as well. The first used a modified BMW 801D to create the BMW 801J, delivering 1,810 PS (1,785 hp, 1,331 kW) at takeoff and 1,500 hp (1,103 kW) at 40,000 ft (12,200 m), an altitude where the D was struggling to produce 630 hp (463 kW). The BMW 801E was likewise modified to create the BMW 801Q, delivering a superb 1,715 hp (1,261 kW) at 40,000 ft (12,200 m), power ratings no existing Allied radial engine of a similar displacement could touch. However none of these engines ever entered production due to high costs, and the various high-altitude designs based on them were forced to turn to other engines entirely, typically the Junkers Jumo 213.
还有美国在高速气动力上比德国还是差。世界上最先进的风洞在二战结束前都在德国。美国低速风洞还可以。只能这样说。超音速风洞和高超音速风洞在二战前基本是德国一家别无分店。知道冯卡门,但知道冯卡门的老师是普郎特么?知道面积率是谁发现的么?而且对二战后空气动力学发挥巨大影响的一系列如边界层等又是那个国家的成果。 |
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