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"Delivery of the RD-150 engine for fire bench tests as part of the first stage block of the RLA-120 is possible starting from July 1978. Fire bench tests of RLA-120 units, as follows from the network model of the program, Fig. 16 may be held in 1978.

Flight design tests of the RLA-120 launch vehicle may be carried out in 1979.

Since the fourth quarter of 1979, RLA-120 can be used to launch modules of the permanent orbital station complex to the satellite and for other tasks.

2.2. Stages and timing of the creation of a complex of reusable space transport systems

The RLA-130 launch vehicle, together with the return orbital aircraft RLA-135, forms the multi-purpose transport space system MTKS-I.

As follows from the network model of the program, Fig. 16, flight design tests of the MTKS-I system can begin in the first half of 1983. In this case, the main determining factors are the duration of the creation and testing of the RLA-135 orbital aircraft, creation and testing of a powerful oxygen-hydrogen engine with a thrust of 250 tf and construction of the necessary test stand infrastructure.

For fire technological and fire bench tests, the construction of a universal stand is envisaged with the commissioning deadline of the 4th quarter of 1979.

Delivery of an oxygen-hydrogen engine for fire bench tests as part of a unit will begin in April 1980. The start date for autonomous flight testing of the RLA-135 is possible in 1981."

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2021:05:20 11:58:35