The YB-29 was an improved XB-29 and 14 were built for service testing. Testing began in the summer of 1943, and dozens of modifications were made to the planes. The engines were upgraded from Wright R-3350 -13s to R-3350-21s. Where the XB-29 had three-bladed props, the YB-29 had four-bladed propellers.

One of the largest aircraft of World War II, the B-29 was designed with state-of-the-art technology, which included a pressurized cabin, dual-wheeled tricycle landing gear, and an analog computer -controlled fire-control system that allowed one gunner and a fire-control officer to direct four remote machine gun turrets.

2023年6月18日 · The YB-29 aircraft were similar in appearance to the XB-29s, but were built to nearly production standards and had most of the planned military systems installed: They were equipped with three gun sighting blisters and four remotely operated machine gun turrets as part of the General Electric central fire-control system.

Boeing B-29B was a modification of the basic B-29 design for use in the Pacific during World War II for low-level bombing raids against Japan.

The B-29 Superfortress landing at Glatton was YB-29, Serial Number 41-36963, ‘HOBO QUEEN’. It flew from Wichita to Miami and took off under ‘SECRET’ orders and flew south over the Atlantic Ocean, where she then headed North to Gander, Newfoundland.

B-29轰炸机（英文：B-29 Bomber [1] [25]，绰号：Superfortress，译文：超级空中堡垒），是美国一型螺旋桨型战略轰炸机。 B-29轰炸机为平直翼四发气动布局，其命名延续自 B-17轰炸机，是美国陆军航空队在第二次世界大战亚洲战场的主力轰炸机，也是当时各国空军中最大型的飞机。 该机主要用于执行战略轰炸和远程轰炸任务，还可以作反潜、侦察和空中加油机使用，其运用了当时的先进技术，诸如座舱增压、前三点式起落架、高翼载和遥控机枪炮塔等，被誉为“超级空中堡 …

2020年9月5日 · 尽管原型机问题重重，但战事紧迫，陆航和波音仍然坚定地按计划向前推进，开始生产预生产型的yb-29，第1架也在43年6月完成了试飞。 陆航组建了第1支“超级堡垒”部队，7月底之前已经有了7架YB-29开始测试。

2024年8月14日 · In this article, we will explore five notable variants of the B-29: XB-29, YB-29, B-29A, B-29D, and KB-29 Aerial Tanker. The XB-29 was the experimental prototype that laid the foundation for the iconic Superfortress bombers. Developed and tested by the Army Air Corps, only three units of the XB-29 were built.

B-29轰炸机（英文：B-29 Bomber，绰号：Superfortress，译文：超级空中堡垒），是美国一型四引擎螺旋桨战略轰炸机。 B-29轰炸机命名延续自B-17飞行堡垒，是美国陆军航空队在第二次世界大战亚洲战场的主力战略轰炸机，是二次大战时各国空军中更大型的飞机，也是当时集各种新科技的更先进的武器之一，被称为“史上最强的轰炸机”。 B-29轰炸机由美国波音公司（Boeing）于1940年开始研制，1943年首飞并服役，1945年8月向日本的广岛和长崎投掷了核 ... ，二战后 …

2024年11月19日 · 波音（Boeing）B-29“超级堡垒”是一款重型四发动机轰炸机，采用全金属结构，具有有效的蒙皮，并采用中翼布局。 机身由铝板、铝型材、钢制装甲板和装甲玻璃制成。 在这张照片中，可以清楚看到机身的所有主要元素。 机身是圆形截面，提供了最大的机械强度和最小的空气阻力。 从结构上看，机身分为5个部分，使用了拉筋、肋条、辅助肋条、加固插板和有效蒙皮，蒙皮板拼接安装。 为了提高强度，蒙皮与承载部件通过隐形铆钉固定，机枪炮塔附近的地 …