Everything you never knew you wanted to know about the Mercury Project

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Foreword Text

Here is the exact text of of the foreword from this edition of SEDR-104, I've added links as appropriate.

This document is applicable to Spacecraft No. 20 and its one-day orbital mission and supersedes basic SEDR 108-18 dated 1 June 1962 Manned Satellite Spacecraft 18-Orbit Configuration. This document covers Spacecraft No. 20 as delivered but does not include changes generated after delivery.

The purpose of this document is to present a clear operational description of the spacecraft systems and major components. A comparison between systems/components installed in previous spacecraft and those installed in Spacecraft No. 20 can be made by the use of earlier issues of this document. Spacecraft numbered 2, 3, 4, 5 6, 7, 11, and 14 are covered in the 1 February 1961 issue of SEDR 104 Revised 1 August 1961. Spacecraft numbered 9, 13, 16, 18 and 19 are covered in the 1 November 1961 issue of SEDR 104-3 Revised 1 February 1962.

Coverage

This edition pertained to only Capsule 20 used for the MA-9 mission.

Section by Section

Section I Introduction

Section II Major Structural Assemblies

Comments on this edition relevant to the Major structural assemblies

Section III Environmental Control System

Comments on this edition relevant to the Environmental control system

Section IV Stabilization Control System

Comments on this edition relevant to the Stabilization control system

Section V Sequence System, Launch Through Retrograde or Abort

Comments on this edition relevant to the Sequence system, launch through retrograde or abort

Section VI Escape and Jettison Rocket Systems

Comments on this edition relevant to the Escape and jettison rocket systems

Section VII Posigrade Rocket System

Comments on this edition relevant to the Posigrade rocket system

Section VIII Retrograde Rocket System

Comments on this edition relevant to the Retrograde rocket system

Section IX Sequence System, Landing Through Recovery

Comments on this edition relevant to the Sequence system, landing through recovery

Section X Electrical Power and Interior Lighting Systems

Comments on this edition relevant to the Electrical power and interior lighting systems

Section XI Communication System

Comments on this edition relevant to the Communication system

Section XII Navigational Aids

Comments on this edition relevant to the Navigational aids

Section XIII Instrumentation System

Comments on this edition relevant to the Instrumentation system