When calculating grades, I simply used the 'equation': grade (%) = (rise/run)(100). Since I had open gridwork, I used adjustable heights (clamp + riser) and laid the track temporarily down on the risers. I then took a string putting it down the center of the track for curves and straights, and then measured the length to give me the 'run'. The rise was measured from the level at the start of the grade to the level at the finish of the grade. It is necessary to measure from the same place (i.e., from the bottom of the track to the bottom of the track, from the top of the track to the top of the track, etc. and I measured the value at several places along the track to check the constancy of the grade. I also used a device with two levels that is sold to measure grades and track tilt - Track Mate; Grade & Leveling System from Jak Tool and Model, Elberon, NJ). I really don't know how accurate the device is, however it was quite close to the calculations (within 1/8 to 1/4%???). I also assume it could be used to make super elevations on curves.
In any event, still wish I had those automated #6 turnouts in SHS sized track :-) ! regards to all Rance Velapoldi (Tranby, Norway) > > When constructing my loop I could figure grades and I had templates for > the radii, but I a tough time taking and making measurements, 'cause > everything was open gridwork and very little of that. One of our long > departed engineer types finally helped me get it right. > > Bob Werre > BobWphoto.com > > > > The resource I found to get the grades right for my under construction > > layout is John Armstrong's layout planning books. He provides an > > excellent graph for grades. I use the Woodland Scenics 2% grade > > materials. After I establish the clearance required at the highest > > point, I measure downgrade to locate the starting point and adjust it > > to work the rise into the track plan. This works for me, I did not do > > well in the math classes. > > > > Luther "S" > > > > --- In [email protected] <mailto:S-Scale%40yahoogroups.com> > <mailto:S-Scale%40yahoogroups.com>, > > "Tyler" <tfroatz4@...> wrote: > > > > > > I'm currently designing a sloped module block and am trying to > > determine how much height I could achieve over the course of each > module. > > > > > > Since my trigonometry is a little rusty, I went to double check my > > results with an online calculator and the results don't match. As a > > matter of fact, the online-calculator gives me close to 50% more rise > > then my own calculations. > > > > > > > [Non-text portions of this message have been removed] > > [Non-text portions of this message have been removed] ------------------------------------ Yahoo! Groups Links <*> To visit your group on the web, go to: http://groups.yahoo.com/group/S-Scale/ <*> Your email settings: Individual Email | Traditional <*> To change settings online go to: http://groups.yahoo.com/group/S-Scale/join (Yahoo! ID required) <*> To change settings via email: [email protected] [email protected] <*> To unsubscribe from this group, send an email to: [email protected] <*> Your use of Yahoo! Groups is subject to: http://docs.yahoo.com/info/terms/
