TX

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Project home: Orbithangar
Author: Kulch
Current version: Release 5
Compatibility: Orbiter 2006


TX
TX-Scrshot1.jpg
TX and Delta-glider in low Earth orbit
Description
Role Atmospheric tug
Full name Tug eXperimental
Crew 3
Passengers none
First flight date unknown
Entered service date unknown
Manufacturer Kulch SRC, but studied by NASA
Dimensions
Length 110.39 m
Height 22.28 m
Wingspan 85.15 m
Wing area - m2
Masses
Empty 210,000 kg
Fuel 555,000 kg
RCS fuel 10,000 kg
Max. take-off 825,000 kg
Inertia PMI - m2
Performance
Max. delta-v ? m/s
Max. accel ? m/s2
Stall CL ?
Stall AOA

TX (or Tug, Experimental) is the Kulch SRC's experimental winged hypersonic booster. The first of a series of Winged Boosters set to be developed by Kulch, the TX is designed to carry payloads up to 50 tons to low Earth orbit.

The main jet installation consists of 6 combined engines, able to work both in an atmosphere and in space, and 6 space-only engines. The propellant is liquid oxygen and hydrogen. An air shutter is automatically controlled to maintain maximum efficiency of engines during atmospheric flight; once the engines have switched purely to internal oxidizer, the shutter is closed. Main engines have two modes of operation: take-off and orbital. In take-off mode all 12 engines work (in atmospheric flight, 6 engines). In orbital mode such large thrust is not required, so only 4 engines of the 12 (2 engines in atmospheric flight) work. Orbital mode is also used during landing, since almost all fuel is consumed and the TX is lighter than during takeoff.

Kulch SRC is not the original creator of the TX, for it is based on a study by NASA in 1971, with some of the TX's features summarized in the book "The Estimation of Characteristics of Carriers for Space Vehicles"

The TX can carry other light vehicles to orbit; it is designed specifically for the Delta-glider and VTOL-X, but with an appropriate flight profile, it can also be an effective first stage for the Deltaglider EX and XR-2 Ravenstar (when set to realistic parameters). It also can be used as a hypersonic cargo aircraft, a role in which it performs quite well. On this role, Orbital Mode for the main engines isused to sustain hypersonic cruise at altitudes in excess of 30 km and speeds of around 2 km/s, even at maximum payload. Range will vary depending on payload and speed, but should be sufficient to fly from KSC to WIN with reserves. Make sure to cut your engines at least 500 km out from your target to allow time to decelerate safely.


There is a recent addon of the virtual 3D cockpit of the TX, by vchamp. This can carry 4 UMmu crew members, and has a total of 4 MFDs that can be used in the VC.