In answer to both Dean's and John's questions, unless you're a student pilot on a solo XC, there is NO downside of not having your logbook with you. The worst they can do is tell you to visit your home FSDO within a few days to have it checked, but unless you give them other reason to dig, they will normally not do that. A copy is not legally valid unless/until you have signed it certifying its accuracy, and does not meet the student solo XC requirements.silver-eagle said:So... If I don't carry the logbook with me, and I get rampchecked, what is the downside of not providing the current log or a copy? Will the FAA give me a deadline for showing up with it or would a copy suffice?
Of course, there's nothing LEGALLY wrong with having your log handy for on-the-spot inspection, but carrying it around makes it susceptible to loss or theft (been there -- 1971, car broken into, nav bag stolen with log inside -- good thing I had copies). And there's always the CHANCE that you have made some sort of mistake in logkeeping which the inspector would spot, but which you, too, would spot if you took a day to check it carefully yourself and correct the error before handing it over for inspection (an option you don't have if the log is with you during a ramp check).
Generally speaking, except when needed for training endorsements, there's just no good reason to carry your log around, and a number of reasons it's not a good idea. That's why the ONLY time I carry my log is practical tests or when I'm going for flight training, and even then, it stays at the airport while we fly.