Sun and Map Instrument Suppliers
Celestaire, http://celestaire.com. A source
for Davis #063 Course Protractor #4402 @ $6.00 or Davis #071 3 Arm Protractor
and C-Thru #1500-15 Clear Parallel Rules #4306 for $6.95. You only need one
protractor and parallel rules for map reading. They also have many books on
navigation, mapping and history.
The Celestaire 5" Square Protractor # 4405 and a clear plastic ruler with line
from end to end in its middle will make a accurate clinometer. Just add a small
bolt or tack with an eraser in the middle and a counter weight to the bottom
of the ruler. (See Homemade Clinometer)
C Thru Ruler Company, firstname.lastname@example.org, makes
two course protractors: #CA-9 Grid Compass Course Protractor for $8.50 and #255A
360 degree Compass Protractor with Arm for $2.50. They also make #1500-12 Folding
Parallel Rule, 12". Also handy are #259 4" 360 degree Circular Protractor 4"
for $1.50 or #255 360 Degree Protractor for @1.10. Get 2 or 3 of these circular
protractors for a sundial and homemade clinometer. They will advise you of their
The C Thru #CA-9 Grid Compass Course Protractor will also make a good CLINOMETER.
Just add a weight to the arm, replace the center grommet with a small bolt and
calibrate where the weight goes with a level. (Buy two because one will be on
Local nautical navigation suppliers will also have the course protractors and
Forestry Suppliers at 800 647-5368 have a great selection compasses, clinometers
and good prices. www.forestry-suppliers.com
Forestry Suppliers compass stock numbers:
37182 Suunto Navigator MC-2D/MM / built in clinometer (azimuth) $37.00
37185 Suunto " MC-2DAZ/IN / built in clinometer (azimuth) $37.00
37166 Suunto Pro. MC-1D / built in clinometer (azimuth) $37.00
37160 Suunto Pro. MC-1D/IN / built in clinometer (azimuth) $37.00
(These compasses with built in clinometers are OK, but the clinometers are not
as easy to use as the Suunto Tandum or an Abney Level.)
37036 Silva Ranger (azimuth) / built in clinometer $44.00
37023 Silva Challenger no clinometer (make your own) $17.00
37021 Suunto Vista KB-20. Easiest to use, has no clinometer. $45.00 I recommend
this one if you can't afford the Tandem listed below. (See Homemade
37021-B or 37022 Suunto Vista. $45.00
Compass/clinometer numbers Expensive but very good tools, less than $200.
31192 Suunto Tandem (DO NOT get quadrant models!) $170.
31193 Suunto Tandem/ Declination Adjustment (Make sure you understands true/magnetic
north problems) $177.
31191 Suunto-The Twin Compass/Clinometer $184.
31999 Brunton Compass/Clinometer $184.
43830 Suunto Clinometer PM-5/360PC $105.00
43922 Abney Level PEC (About $60.00)
If you order from Forestry Suppliers, also get some Protractors.
Get 2 or 3 Solid Center Circles 4" dia. #47898 ($1.50 ea.)
And a 6" Ruler # 47450 ($.90) to make a home made clinometer and homemade transit.
There may be more brands and suppliers out there that I don't know about. I
would appreciate hearing about any other sources.
Your Local Drafting Store should have adjustable triangles, 360 degree protractors,
straight edges, parallel rules.
© Copyright 1999-2004 Ron Dexter. All Rights Reserved.