Accession Number:

AD0256594

Title:

A SEQUENCE DIAGRAM ANALYSIS OF THE VANGUARD SATELLITE LAUNCHING VEHICLE

Descriptive Note:

Technical note

Corporate Author:

NATIONAL AERONAUTICS AND SPACE ADMINISTRATION WASHINGTON DC

Report Date:

1961-05-01

Pagination or Media Count:

85.0

Abstract:

The Vanguard Sequence Diagram method, introduced in AD-203 077, is applied to depict the operating sequence of the Vanguard Satellite Launching Vehicle. It relates vehicle systems oper-ATION DURING FINAL COUNTDOWN PREPARATIONS THROUGH LIFT-OFF, AND INCLUDES THE ENTIRE FLIGHT PROGRAM TO SATELLITE SEPARATION IN ORBIT. On the basis of information from the diagram, a brief system analysis of the vehicle is performed. The results are presented graphically and include Vehicle state, state-transition breakdown Vehicle component makeup Launch program events Flight profile of cumulative events and vehicle components remaining Condensed sequence diagram and Vehicle in-flight sequencing flight-test results. A narrative description of the vehicle launch program is included by way of a verbal interpretation of the master sequence diagram. Author

Subject Categories:

  • Rocket Engines
  • Unmanned Spacecraft

Distribution Statement:

APPROVED FOR PUBLIC RELEASE