Editing Convair XC-99 (section)

{{Short description|American prototype cargo plane (1949–57)}}
<!-- This article is a part of [[Wikipedia:WikiProject Aircraft]]. Please see [[Wikipedia:WikiProject Aircraft/page content]] for recommended layout. -->
{{Infobox aircraft
 |name = XC-99
 |image = File:Convair XC-99 in flight c1948.jpg
 |caption = The sole prototype XC-99 off [[La Jolla]] in its early days of operation, before fitment of a nose [[radome]] and four-wheel main gear bogies
 |type = Heavy transport
 |national_origin = United States
 |manufacturer = [[Convair]]
 |designer =
 |first_flight = 24 November 1947<ref>Associated Press, "400-Troop Plane Takes First Hop", ''The Spokesman-Review'', Spokane, Washington, Monday 24 November 1947, Volume 65, Number 194, page 1.</ref>
 |introduction = 26 May 1949
 |retired = 1957
 |produced =
 |number_built = 1
 |status = Canceled
 |unit cost =
 |primary_user = [[United States Air Force]]
 |more_users =
 |developed_from = [[Convair B-36 Peacemaker]]
 |variants =
 |sole example of type?= Y
 |other_names = 
 |construction_number =
 |construction_date = 
 |civil_registration = 
 |military_serial = 43-52436
 |radio_code = <!-- military radio codes where this is a commonly used way of identifying this aircraft (e.g. US, British, and German military aircraft of World War II) -->
 |owners = <!-- listed above -->
 |in_service = 
 |flights = 
 |total_hours = 7,400 hours
 |total_distance = 
 |fate = 
 |preservation = [[Davis Monthan AFB]]{{cn|date=April 2025}}
}}

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 first flight was on 24 November 1947 in [[San Diego, California]], and after testing it was delivered to the Air Force on 26 May 1949.<ref name="Jacobsen & Wagner 1980 p41">Jacobsen & Wagner 1980, p. 41.</ref>  The '''Convair Model 37''' was a planned civil passenger variant based on the XC-99 but was not built.