DaleC
Contributor
A recent discussion has me wondering about initial wait times regarding an altitude dive I know of. Here are the details:
A gradual ascent by auto from sea level to 2200ft. that takes 3.5 - 4hr's.
According to the PADI manual (regarding altitude diving) the altitude should be rounded up to 3000ft. For every 1000ft. in altitude two pressure groups should be assumed on arrival. Therefore I would be at PG F with a wait time of 1:35 - 4:35hr's to become an A diver.
Q 1: Is that true or would the gradual ascent time mitigate the pressure group I'm in upon arrival? The book doesn't seem to differenciate between flying to a destination and driving (gradual vs sudden ascent rates).
Q 2: Is there any concern with driving home afterwards (gradual descent from 2200ft. to sea level taking 3.5-4hr's)?
The discussion revolved around the suggestion that it could be done in a really long day trip with the objection that since it was an altitude dive one would have to stay overnight.
A gradual ascent by auto from sea level to 2200ft. that takes 3.5 - 4hr's.
According to the PADI manual (regarding altitude diving) the altitude should be rounded up to 3000ft. For every 1000ft. in altitude two pressure groups should be assumed on arrival. Therefore I would be at PG F with a wait time of 1:35 - 4:35hr's to become an A diver.
Q 1: Is that true or would the gradual ascent time mitigate the pressure group I'm in upon arrival? The book doesn't seem to differenciate between flying to a destination and driving (gradual vs sudden ascent rates).
Q 2: Is there any concern with driving home afterwards (gradual descent from 2200ft. to sea level taking 3.5-4hr's)?
The discussion revolved around the suggestion that it could be done in a really long day trip with the objection that since it was an altitude dive one would have to stay overnight.
