Page 18 - LHR Sept 25.
P. 18

He  learned  to  think  in  metal:  how  a     new  unit  500  and  650cc  twins.  His
                             misplaced  radius  could  create  a  stress    r e s p o n s i b i l i t i e s   w e r e n ' t
                             riser that cracked after a few thousand        glamorous—oilway  drillings,  camplate
                             miles, or how a cable route could wear         detents,  tab  washers—but  they  were
                             through  its  own  sheath  if  drawn           essential.
                             carelessly.
                                                                            What made him stand out was his eye for
                             Weekly stints in the experimental shop         “join lines,” the way panels, covers, and
                             reinforced  the  lesson  that  mistakes  on    seams met and caught the light. Small
                             paper  turned  into  problems  in  the         Heath's  senior  designers  increasingly
                             workshop.  Veteran  fitters  were  blunt:       trusted him with finishing touches: the
                             “Draw it so it works in the world, not just    placement of a badge, the curve of a tank
                             on paper.”                                     scallop,  or  the  sweep  of  a  side  cover.
                                                                            These  subtle  decisions  shaped  a
                             From these years, Ed developed habits
                             that  stayed  with  him—careful  section       motorcycle's  character  far  more  than
                             drawings, uncluttered views, and a belief      most riders realized.
                             that empathy with mechanics and riders
                             mattered  as  much  as  mathematical           The American Market Effect
                             accuracy.
                                                                            By  the  mid-1960s,  BSA's  survival
                                                                            depended  heavily  on  exports  to  the
                             The Rise of the Unit Twins                     United  States. American  riders  wanted
                                                                            long-range tanks, wide handlebars, deep
                             The late 1950s and early 1960s brought
                             the challenge of unit construction, where      chrome,  and  exhaust  notes  with
                             engine  and  gearbox  were  housed  in  a      presence.  Ed's  work  often  revolved
                             single casing. Triumph had moved in that       around  adapting  British  sensibilities  to
                             direction,  and  BSA  followed.  Ed            American demands.
                             contributed  to  sub-assemblies  of  these     He  worked  on  tank  variants,  muffler




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      LHR Motorcycle Magazine                                                                                                                                                    September 2025
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