The  helix  is  tricky,  I  benefitted  from  knowledge  of  two  helixes  on  our  old  club  layout.  the  first  rule  is  to  use  the  largest  radius  possible.   It   helps  to  use  thick  plywood,  as  any  vertical  curves  (changes  in  the  grade)  on  the  helix  will  cause  problems,  and  the  thicker  pieces  of  plywood  are  stiffer;  and  thus  it  is  easier  to keep  the  grade  even.    I'm  not  a  math  whiz,  and  figuring  the  grade , rise  over  run,  or  to  be  more  precise,  change  in  elevation  divided  my  the  length  of  the  elevated  track.      To  be  sure,  the  english  measuring  system  is  going  to  put  you  into  fraction  land,  so  I  figure  my  grades  using  centimeters.   I  have  a  measuring  tape  with  metric  on  one  side,  and  english  on  the  other,  so  I  can  switch  gears.
A  problem  that  often  gets  missed  is  keeping  the  roadbed's  cross  section  level.   I  have  a several little  levels,  designed  to  be  a  line  levels.  as  I'm  building  the  helix  (or  any  roadbed  for  that  mater),  I  check  the  level,  ninety  degrees  off  the  center  line  of  the  track.   It  should  be  dead  level.     some  lean  to  the sub road   bed  you  can  get  away  with,  but  it  is  more  problematic  in  a  curve  or  on  a  grade,  doubly  so  on  a  helix.   a  slight  elevation  of  the  outside  rail  in  a  curve  is  a  prototype  practice  called  super elevation.  This  makes  the  car  lean  inward  some.  the  goal  is  to  balance  the  force  of  gravity  tipping  the  car  inward,  and  centrifugal  force,  pulling  the  car  outward.      Super  elevation  helps  a  little  on  the  model;  but  not  as  much  as  it  does  in  real  life.  it    is  only  worthwhile  where  you  can  see  it,  as  it  is  a  cool  effect,  but  it  is  best  achieved  with  tiny  shims  under  the  outside   rail  of  flex  track;  we  want  to  stay  away  from anything  but  a  dead  level  .
The  Lake  house  "Eagle's Nest",  is  awesome.   It  is  on  a  steep  hill  in  the  deep  woods,  going  down  to  the  shallow  end  of  a  Bay  on  Kentucky  lake  (formed  by by  a  TVA  dam  on  the  Tennessee  River)   The  Bay  be  are  on  is  where  White  Oak  Creek  comes  in.   I'm  going  to have  to  get  a  license  and  some  fishing  gear,  the  fishermen  I  know  say  that  area  is awesome  fishing.   We  have  a  nesting  pair  of  Bald  eagles  nearby,  and  we  are  seldom  there  without  seeing  or  hearing  them.  If  you  get  out  on  the  water,  you  are  very likely  to  see  them,  as  they  are  fishing  all  the  time,  and  ignore  people  in  boats.
When  my  wife  was  commuting  to  Nashville  to  work  on  the  pediatric  Cardiology  floor  ant  Vanderbilt,  before  she  became  a  Pediatric  Nurse  Practitioner,  she  needed  something  weather  capable  to  drive  that  could  keep  up  with  the  6:00am  Nashville  traffic,  and  our  86  Toyota  4 runner  was  imported  when  the  speed  limit  was  65,  and  it  did  not  like  running  80 mph.    I  was  working  at  a  chevy  dealer  then,  and  they  would  sell  cars  to  employes   at  $300.00  over  cost.   I  had  her  come  in  and  drive  whatever  the  Chevy  AWD  station  wagon  was,  but  she  didn't  like  it.  They  had  an 03  6  cly  Subaru  Outback  wagon,  with  the  LL  bean package,  and  she  liked  that,  and  bought  it.      The  Subaru  AWD  tends  to  spoil  you.   Later  she  saw  a  Baja,  and  liked  it.  She  asked  me  if   She  could  get  one  for  me,  and  I  said  she  could  if  she  got  a  yellow  one.  We  are  Nashville  Predator  Hockey  fans,  and  I  wanted  a  truck  that would  match  my team  colors.    Ir  took  her  a  year  hunting  on  the  internet,  but  she  found  me  one.   My  back  up  road  vehicle  is  a  98  GMC  Suburban,  and  My  Wife  has  an  06  Red  Miata for  her  back  up.  My  farm  truck  is  a  81  Toyota  4x4 truck,  but  it  is  not  licensed  , or insured  for  the  road.
I  painted  the  foam  bridge  pier,  and  put  the  first  protective  coat  of  polyurathane varnish  on  the  river.  the  gloss  acrylic medium  looks  beter,  but  has  a  fragile  surface .  when  the  varnish  on  the  river  dries,  I  can  start  installing  foreground  trees  along  the  cliff,  and  making  the  primordial  forest  floor  back  to  this  corner.  that  is  going  to  make  this  area   my  most   most  scenic  spot,  until  I  get  to  my  upper  deck.  I  have  also  shortened  the  bridge deck  stolen  from  the  club,  and  removed  the  code  100  rail  (leaving  the  spikes  in  place,   so  it  should  be  super  easy  to  get  the  new  code  83 rail  installed); I  need  to  cut  out  some  holes  between  the  ties  to  dump coal  for  the  tannery.  I should  be  able  to  start    extending  the  track  onto  the  Sander's  switch  block  soon.   

