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NASA (Retro)

The National Aeronautics and Space Administration is an independent agency of the U.S. federal government responsible for the civilian space program, as well as aeronautics and space research.

===The Shuttle Carrier Aircraft (SCA)===
are two extensively modified Boeing 747 airliners that NASA used to transport Space Shuttle orbiters. One is a 747-100 model, while the other is a short range 747-100SR. The SCAs were used to ferry Space Shuttles from landing sites back to the Shuttle Landing Facility at the Kennedy Space Center. The orbiters were placed on top of the SCAs by Mate-Demate Devices, large gantry-like structures that hoisted the orbiters off the ground for post-flight servicing then mated them with the SCAs for ferry flights.

===TU144===
In 1993 08-2 was chosen to serve as testbed in a joint program between Tupolev, NASA and others US firms. The aircraft suffered an extensive modification that included the power plant, former Kolesov RD-36-51A engines were replaced by Kuznetsov NK-321 (a modified version of the engines of the Tu-160 bomber). The new model was designated Tu-144LL Flying Laboratory. The first flight of the Tu-144LL was on November 29, 1996 and a total of 27 flights were carried out until the end of the program in 1999.

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This mod contains new aircrafts which only run with activated AirportCEOTweaks and subscribed ACEO Tweaks Aircraft Pack
Minimum version: 2.3.0 - Futher Information and Download[forum.apoglabs.com]

With activated Tweaks, following features will be supported:

• B747 Shuttle Carrier as new aircraft in 2 Version - one without shuttle attached

• Country specific origins/destinations

The new aircraft models require the aircraft pack: Get it here from the Steam Workshop

Using the Tweaks is not mandatory. If you do not use the Tweaks, there will be only a fleet of basic vanilla aircrafts.