On Mar 30, 3:56*pm, Eric Greenwell wrote:
Papa3 wrote:

Frankly, I'm doing this out of an "excess of caution", as I will make
sure that the backup logger and main logger have the same task
declarations, and it's a flight I can fly without really needing the
PDA.

Are you allowed to have two declarations? Or do you need a paper
declaration if you want to use more than one logger?

--
Eric Greenwell - Washington State, USA
* Change "netto" to "net" to email me directly

* "Transponders in Sailplanes"http://tinyurl.com/y739x4
* * * Sections on Mode S, TPAS, ADS-B, Flarm, more

* "A Guide to Self-launching Sailplane Operation" atwww.motorglider.org

Yes and no. The answer in SC3C (OO Guide) is as follows:

Where more than one FR is carried, each one must be checked to ensure
the last declaration made
before take-off is applied to the flight. This may be an electronic or
a written declaration, whichever is
closest to the take-off time. (Note the timing warning given in para
7.4.) Some pilots may prefer to
make a written declaration even though carrying a flight recorder or
recorders to avoid making electronic
changes at a busy period before take-off. Pilots would be well advised
to prepare and use a
declaration form that ensures that all the required data required is
included. (See SC3 4.1 and sample
form in Appendix 10 in this Annex).

So, you obviously can't have two different courses declared in
different FRs and then pick the one that you end up flying. However,
it's up to the OO to look at both loggers to make sure this doesn't
happen. Now, if, for example, I had made the declaration on the
Cambridge Model 20 before flight but accidentally tromped on it in
flight, then it would no longer be "the last declaration made before
takeoff" in which case my read is that the backup would then contain
the official declaration. Unless I had made a written declaration
which is time stamped after the one on the backup.

I (almost always) do a written declaration as well, since my trust in
all things electronic is less than iron-clad. However, since the
last FR declaration before takeoff is official, I do want to make sure
that the chances of a screw-up are minimized.

P3