And if you're replacing every port lens, number them as you take them off so you can put the new ones back in their original locations. Using the old ones as templates is the best way to get a good fit. Barbara Hickson Fellers "Flight Risk" '76 C&C 33 MkI
Sent from the Mars Rover. On Oct 17, 2012, at 8:52 PM, Rich Knowles <r...@sailpower.ca> wrote: > If the old ones are not cracked, I'd use them as patterns for the new lenses. > An evasive answer, I know, but I'd say in a typical small aluminum frame the > dimension change due to heat would be negligible and leaving an 1/8" > clearance all round should prevent cracking. > > Rich Knowles > Indigo. LF38 > Halifax > > On 2012-10-17, at 21:43, Bob Moriarty <bobmo...@gmail.com> wrote: > > I am replacing the lenses on my portlights. They are in aluminum > frames that are screwed into the cabintop. I understand that I need > to take into account the expansion/contraction of the lens material. > When the temperature increases does the inside circumference of the > frame increase or decrease? > Thx in advance, > Bob M > Ox 33-1 > Jax, FL > > _______________________________________________ > This List is provided by the C&C Photo Album > http://www.cncphotoalbum.com > CnC-List@cnc-list.com > > _______________________________________________ > This List is provided by the C&C Photo Album > http://www.cncphotoalbum.com > CnC-List@cnc-list.com _______________________________________________ This List is provided by the C&C Photo Album http://www.cncphotoalbum.com CnC-List@cnc-list.com
