INTO STABILITY

INTO STABILITYINTO STABILITYINTO STABILITY
Home
INTO STABILITY
FOREWORD
TABLE OF CONTENTS
INTRODUCTION
1: ST LOUIS
2. SCHENECTADY
3. GE'S ADVANCED COURSE
4. GRAPHICAL ANAL. PAPER
5. NORTH AMER. AVIATION
6 AEROPHYSICS LAB
7: THE SPIRULE
8. THE ROOT LOCUS PAPER
9. TEXTBOOK
10. AUTONETICS
11. THE SPIRULE COMPANY
EPILOGUE
AFTERWORD
ARTWORK
RUFUS OLDENBURGER AWARD
  • ROOT LOCUS AND WALT
  • LIFE IN LEFT HALF PLANE
TRIBUTES AFTER HIS DEATH
  • "TRIBUTE" BY BOB CANNON
  • "IN MEMORIAM" BY D.BENTLY
APPENDICES
  • 1985-2003 NAA Letters
  • 2003-24 Colleague Letters
BONUS CONTENT FOR FAMILY
ROOT LOCUS EXPLANATIONS
FIVE VIDEOS
BOOKS ABOUT HIS ANCESTORS
  • RECORD OF MY LIFE
  • JAMES BURGESS JOURNAL
  • SAINTS, SETTLERS, SPIRITS
  • VOICES OF THE PAST
  • HIS TRUTH IS MARCHING ON
  • SAINTS:TRAILS TO ST.LOUIS
  • Christmas at ElVenado
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INTO STABILITY

INTO STABILITYINTO STABILITYINTO STABILITY
Home
INTO STABILITY
FOREWORD
TABLE OF CONTENTS
INTRODUCTION
1: ST LOUIS
2. SCHENECTADY
3. GE'S ADVANCED COURSE
4. GRAPHICAL ANAL. PAPER
5. NORTH AMER. AVIATION
6 AEROPHYSICS LAB
7: THE SPIRULE
8. THE ROOT LOCUS PAPER
9. TEXTBOOK
10. AUTONETICS
11. THE SPIRULE COMPANY
EPILOGUE
AFTERWORD
ARTWORK
RUFUS OLDENBURGER AWARD
  • ROOT LOCUS AND WALT
  • LIFE IN LEFT HALF PLANE
TRIBUTES AFTER HIS DEATH
  • "TRIBUTE" BY BOB CANNON
  • "IN MEMORIAM" BY D.BENTLY
APPENDICES
  • 1985-2003 NAA Letters
  • 2003-24 Colleague Letters
BONUS CONTENT FOR FAMILY
ROOT LOCUS EXPLANATIONS
FIVE VIDEOS
BOOKS ABOUT HIS ANCESTORS
  • RECORD OF MY LIFE
  • JAMES BURGESS JOURNAL
  • SAINTS, SETTLERS, SPIRITS
  • VOICES OF THE PAST
  • HIS TRUTH IS MARCHING ON
  • SAINTS:TRAILS TO ST.LOUIS
  • Christmas at ElVenado
Blank
More
  • Home
  • INTO STABILITY
  • FOREWORD
  • TABLE OF CONTENTS
  • INTRODUCTION
  • 1: ST LOUIS
  • 2. SCHENECTADY
  • 3. GE'S ADVANCED COURSE
  • 4. GRAPHICAL ANAL. PAPER
  • 5. NORTH AMER. AVIATION
  • 6 AEROPHYSICS LAB
  • 7: THE SPIRULE
  • 8. THE ROOT LOCUS PAPER
  • 9. TEXTBOOK
  • 10. AUTONETICS
  • 11. THE SPIRULE COMPANY
  • EPILOGUE
  • AFTERWORD
  • ARTWORK
  • RUFUS OLDENBURGER AWARD
    • ROOT LOCUS AND WALT
    • LIFE IN LEFT HALF PLANE
  • TRIBUTES AFTER HIS DEATH
    • "TRIBUTE" BY BOB CANNON
    • "IN MEMORIAM" BY D.BENTLY
  • APPENDICES
    • 1985-2003 NAA Letters
    • 2003-24 Colleague Letters
  • BONUS CONTENT FOR FAMILY
  • ROOT LOCUS EXPLANATIONS
  • FIVE VIDEOS
  • BOOKS ABOUT HIS ANCESTORS
    • RECORD OF MY LIFE
    • JAMES BURGESS JOURNAL
    • SAINTS, SETTLERS, SPIRITS
    • VOICES OF THE PAST
    • HIS TRUTH IS MARCHING ON
    • SAINTS:TRAILS TO ST.LOUIS
    • Christmas at ElVenado
  • Blank
  • Home
  • INTO STABILITY
  • FOREWORD
  • TABLE OF CONTENTS
  • INTRODUCTION
  • 1: ST LOUIS
  • 2. SCHENECTADY
  • 3. GE'S ADVANCED COURSE
  • 4. GRAPHICAL ANAL. PAPER
  • 5. NORTH AMER. AVIATION
  • 6 AEROPHYSICS LAB
  • 7: THE SPIRULE
  • 8. THE ROOT LOCUS PAPER
  • 9. TEXTBOOK
  • 10. AUTONETICS
  • 11. THE SPIRULE COMPANY
  • EPILOGUE
  • AFTERWORD
  • ARTWORK
  • RUFUS OLDENBURGER AWARD
    • ROOT LOCUS AND WALT
    • LIFE IN LEFT HALF PLANE
  • TRIBUTES AFTER HIS DEATH
    • "TRIBUTE" BY BOB CANNON
    • "IN MEMORIAM" BY D.BENTLY
  • APPENDICES
    • 1985-2003 NAA Letters
    • 2003-24 Colleague Letters
  • BONUS CONTENT FOR FAMILY
  • ROOT LOCUS EXPLANATIONS
  • FIVE VIDEOS
  • BOOKS ABOUT HIS ANCESTORS
    • RECORD OF MY LIFE
    • JAMES BURGESS JOURNAL
    • SAINTS, SETTLERS, SPIRITS
    • VOICES OF THE PAST
    • HIS TRUTH IS MARCHING ON
    • SAINTS:TRAILS TO ST.LOUIS
    • Christmas at ElVenado
  • Blank

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THIS SITE IS OWNED AND MANAGED BY GREGORY WALTER EVANS, WALT'S SON. IF YOU WOULD LIKE TO RECEIVE NOTIFICATION WHEN the BOOK "INTO STABILITY" IS PUBLISHED, SEND AN EMAIL TO GREG@WALTERREVANS.COM
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Welcome to "Into Stabiity"

Uncover the legacy of Walter Evans on our website. We host key documents for his forthcoming book and a stunning collection of left-handed artworks. Experience his journey in "Realizing Root Locus."

Find out more

Into Stability

ABOUT THIS SITE:

This forthcoming book will tell the extraordinary story of Walter R. Evans, whose 1948 invention of Root Locus and the Spirule revolutionized control system design, shaping the methodologies taught in classrooms and employed by engineers worldwide. Root Locus stands as one of the most significant contributions of the post-war aerospace industry, profoundly impacting national security and advancing technology.


Drawing from Walter Evans' original notes, hundreds of letters, and firsthand accounts from his colleagues at North American Aviation’s Aerophysics Laboratory—later known as Autonetics—this biography offers unparalleled insight into the life and legacy of a pioneer whose work changed the course of engineering history.


Yet, this is more than a story of technical genius. It is also a deeply human narrative of resilience, love, and partnership. When a devastating stroke struck Walter at the age of 60, his wife, Arline—whom colleague Bob Cannon affectionately called “Saint Arline”—dedicated herself to his recovery and well-being. Together, they overcame immense challenges, proving that triumph can emerge even from life’s greatest adversities.

This contents page previews chapters from the forthcoming book "Into Stability"

extras on THIS SITE: excerpts AND SOURCE MATERial

THE ORIGINAL 1950 SPIRULE

Explore the Life and Legacy of Walter Evans

  • Discover the story of Walter R. Evans, pioneering post WWII engineer.
  •  This site offers a comprehensive look at Evans' life. It features source documents referenced in the text.
  • Draft chapters of his son, Greg's, portfolio of  artwork Evans drew with his left hand after a stroke paralyzed the right-hand side of this body.

Copyright © 2025 Realizing Root Locus - All Rights Reserved.   QUESTIONS OR COMMENTS?    SEND ME AN EMAIL OR TEXT.

TO GREG@WALTERREVANS.COM OR 650-823-1658

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