Issue 21 - Fall 1987

  • Backward Versus Forward Pedaling: Comparison Tests
    Ramondo Spinnetti
    1
  • Angular Momentum and Bicycle Stability
    Brenan J. McCarragher
    4
  • Corrections to "Dynamical Stability of the Bicycle"
    6
  • Oxygen Cost of Submaximal Exercise in Recumbent and Conventional Cycling Positions
    Ingrid E. Antonson
    7
  • The Bioenergetics of Power Production in Combined Are-Leg Crank Systems
    Richard R. Powell & Tracy Robinson
    8
  • Oh For the Wings
    Arthur C. Clarke
    19
    Briefly News: Recent Developments
  • A Recumbent Tandem
    David G Wilson
    3
  • HP Submarine Competition
    David G Wilson
    3
  • Bike Tech Articles
    David G Wilson
    6
  • NWHPVA Newsletters
    David G Wilson
    6
  • HPV Nieuws
    David G Wilson
    12
  • Daedalus Gear Transmission
    David G Wilson
    12
  • HP-Helicopter Activity in Britain and Japan
    David G Wilson
    12
    Letters
  • Shaft Drives
    John Stegmann
    18
  • Practical HPVs
    Werner Stiffel
    20
    Editorial
  • Coming of Age?
    David G Wilson
    2
  • Apologies
    David G Wilson
    2
  • The Right to Privacy
    David G Wilson
    2
  • Enthusiasts in India and Sri Lanka
    David G Wilson
    3
  • Chapter Newsletters
    David G Wilson
    3

Issue 21 may be downloaded by clicking on the icon.Download Scanned PDF file