|
|
|
HHome >
Nautical
Supply & Giftshop >
Navigation Tools >
bi-rola Rules > Original bi-rola Rule
_____________________________________________________________________________________ |
|
|
Click for Larger Image |
Original bi-rola Rule
|
|
This rule’s patented vertical and horizontal rolling
motion simplifies course and plotting calculations,
while the unique radial arm allows you to automatically
include compass corrections in your course plotting.
Dims: Length 13-7/8", Width 2-5/8", Thickness 1".
Part #155 |
|
|
Shipping to Canada
Add $15.00 US
|
|
|
|
|
|
Features: |
- Patented four-way rolling motion
- Roller body has protractor markings and a nautical
mile scale
- Radial arm has Loran interpolator scales and 200
millimeter rule
- Automatic compass corrections
- When radial arm and body are used jointly, the birola
rule becomes a 440 mm (17") divider (approximately)
- A speed/time/distance table is included
- Easy to follow instructions
- Packaged in a protective, durable vinyl pouch
- Wt. 12 oz.
|
|
 |
