The Convair XC-99, AF Ser. No. 43-52436, is a prototype heavy cargo aircraft built by Convair for the United States Air Force. It was the largest piston-engined land-based transport aircraft ever built, and was developed from the Convair B-36 Peacemaker bomber, sharing the wings and some other structures with it.

The Convair XC-99, a transport version of the Convair B-36 bomber, made its first flight in November 1947. Designed to carry 400 troops, 335 litter patients, or 100,000 pounds of cargo, the double-decked XC-99 was powered by six 3,500 hp Pratt & Whitney R-4360-41 pusher-type engines turning 19-foot reversible-pitch propellers.

The XC-99, serial 43-52436, is a double deck transport variant of the B-36. It has a considerably larger fuselage, but was never fitted with jet pods. The wingspan is the same 230 feet, but the fuselage is 23 feet longer at 185 feet. The payload of the XC-99 was 101,000 pounds or 400 fully equipped troops. Updated April 6, 2008

2024年7月5日 · These 28-cylinder air-cooled radials each produced 3,500hp and, mounted in the same distinctive pusher configuration as its bomber sibling, gave the XC-99 a top speed of 307 mph (494 km/h). With existing workload and the complexities of the new aircraft it wasn’t until November 1947 that the XC-99 first took to the air.

康维尔XC-99 是康维尔为美国空军制造的原型重型货机。 它是有史以来最大的活塞发动机陆基运输机，由 康维尔 B-36 和平缔造者轰炸机发展而来，与其共享机翼和其他一些结构。

1940s and 1950s, the Air Force explored the potential of a super cargo carrier by flying its one-of-a-kind XC-99 on regular, often record, transport runs. It also was touted as a possible prototype for a new generation of commercial air carriers. The experiment lasted 10 years.

2023年2月18日 · The Convair XC-99 began life as an experimental transport aircraft and is perhaps one of the most unique designs of a larger plane by using the pusher formation. Designed in the late 1940s as a variant of the Convair B-36 Peacemaker bomber, the XC-99 held the record as the largest piston-driven propeller plane constructed in the United States.

The XC-99 was a proposed cargo airlifter and passenger airliner built on the B-36 airframe. It featured a double-deck layout that could hold 400 troops, 305 liters and 35 attendants, or 100,000 pounds of cargo.

The sole XC-99 served until 1957, including extensive usage during the Korean War. It made twice weekly trips from Kelly AFB to the aircraft depot at McClellan AFB, California, transporting supplies and parts for the B-36 bomber while returning by way of other bases or depots making pick-ups and deliveries along the way.

2019年5月14日 · XC-99是康维尔公司（Convair）研制的6发大型运输机，1947年11月首飞。 XC-99是B-36轰炸机基础上改进的运输型。 B-36轰炸机也是个空中巨物，1946年8月首飞。 B-36和XC-99编队飞行，两者使用相同的机翼和发动机，尾翼和垂尾也相近。 但与XC-99相比，B-36的机身显得苗条很多了。 自D型开始，B-36又增加四台通用电气的J47喷气发动机，形成具有6台活塞和4台喷气发动机的混搭。 XC-99使用的普惠R-4360“巨黄蜂”（Pratt＆Whitney R-4360 Wasp …