jrh
Well-Known Member
I'm digging deep into a technical spot I haven't had to think about in a long time and would like some help.
I ran across an airport, Roseburg, Oregon, KRBG, where the Jeppesen takeoff minimums page doesn't have a column for "adequate vis ref" like most airports. It only has ceiling and vis based on aircraft performance or climb in visual conditions.
Why is this? Obviously there are obstacles, but I've seen lots of airports with obstacles still have an Adequate Vis Ref column.
What criteria is used to determine when Adequate Vis Ref either is or is not published?
Also, where is the equivalent information on a government chart? I haven't used government charts in so long I've gotten rusty with them. I'm familiar with the Takeoff Minimums/ODP publication from the government, but I can't find any mention of Adequate Vis Ref minimums in there.
I ran across an airport, Roseburg, Oregon, KRBG, where the Jeppesen takeoff minimums page doesn't have a column for "adequate vis ref" like most airports. It only has ceiling and vis based on aircraft performance or climb in visual conditions.
Why is this? Obviously there are obstacles, but I've seen lots of airports with obstacles still have an Adequate Vis Ref column.
What criteria is used to determine when Adequate Vis Ref either is or is not published?
Also, where is the equivalent information on a government chart? I haven't used government charts in so long I've gotten rusty with them. I'm familiar with the Takeoff Minimums/ODP publication from the government, but I can't find any mention of Adequate Vis Ref minimums in there.