What is the test for navigation?
Posted: Tue Dec 12, 2017 8:32 am
Hullo!
Curious - since both skills cover it - which would be weighted more in a nautical setting when trying to approximate current location and chart a course?
Survival - having 5 TRAINED ranks in survival guarantees the ability to always pinpoint the location of north without a check. Useful for sailing blind and for finding stars, but it says nothing about using the stars to pinpoint your current location beyond these 5 ranks.
Knowledge (Geography and ASTRONOMY) -
The skill describes knowledge of the land, the knowledge related to using charts and also the knowledge of the stars/planets/moons.
Navigation in medieval era came from using a simple compass to determine the location of North, from using either Polaris or the Sun to measure latitude (using a board with a stick to an accuracy of half a degree, or even just fists stacked on each other from the horizon), and using either the degree by which the direction of North changes on the compass (Columbus's Hypothesis) or by trying to keep track of True time and Local time (before mechanical clocks, this was once again done by using large lexicons describing the heavenly cycles with increasing accuracy to determine how late/early said cycles repeated themselves at your current location to deduce time, then deduce longitude using it).
Based on how navigation was done, I'm feeling confident that 5 trained ranks in survival and roughly 20 trained ranks in Astronomy (not counting int bonus yet) should be able to allow one to safely navigate to anywhere in the known world. (since SRD describes 20 as being the highest DC for non-difficult questions)
Naturally, being caught in a storm and having the sky hidden from you would elevate DCs higher, and trying to discover uncharted lands would do so as well, but this is regarding routine navigation, with consideration that NPC pilots/navigators do the same with their 5-8 skill mods.
Curious - since both skills cover it - which would be weighted more in a nautical setting when trying to approximate current location and chart a course?
Survival - having 5 TRAINED ranks in survival guarantees the ability to always pinpoint the location of north without a check. Useful for sailing blind and for finding stars, but it says nothing about using the stars to pinpoint your current location beyond these 5 ranks.
Knowledge (Geography and ASTRONOMY) -
The skill describes knowledge of the land, the knowledge related to using charts and also the knowledge of the stars/planets/moons.
Navigation in medieval era came from using a simple compass to determine the location of North, from using either Polaris or the Sun to measure latitude (using a board with a stick to an accuracy of half a degree, or even just fists stacked on each other from the horizon), and using either the degree by which the direction of North changes on the compass (Columbus's Hypothesis) or by trying to keep track of True time and Local time (before mechanical clocks, this was once again done by using large lexicons describing the heavenly cycles with increasing accuracy to determine how late/early said cycles repeated themselves at your current location to deduce time, then deduce longitude using it).
Based on how navigation was done, I'm feeling confident that 5 trained ranks in survival and roughly 20 trained ranks in Astronomy (not counting int bonus yet) should be able to allow one to safely navigate to anywhere in the known world. (since SRD describes 20 as being the highest DC for non-difficult questions)
Naturally, being caught in a storm and having the sky hidden from you would elevate DCs higher, and trying to discover uncharted lands would do so as well, but this is regarding routine navigation, with consideration that NPC pilots/navigators do the same with their 5-8 skill mods.