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I use a PDA (iPaq) and an SN-10 and I like the SN-10 because is has big
knobs and I hate poking at the PDA screen in flight with the stylus. If you go with a PDA, set it up so you only need look at it during cruise, minimize the finger-poking by programming the buttons on the unit. I NEVER have time to mess with any of my instruments or even my radio knobs while thermaling - for some reason I'm always been concentrating solely on climbing in the core - I normally glance occasionally at whatever screen is up, but poke or turn knobs? Not very successful with that unless I'm straight and level (or close to it). The lady I bought my Nimbus 3 from flew did her 1000km using a sectional encased in two pieces of plexiglass with a string over the top tensioned by a rubber band. It apparently worked very well for her - I've had no luck tapping on it with my finger or even my iPaq stylus - damn thing doesn't respond at all ;-) Of course she flys farther in her 1-26 than I do in her old Nimbus... Jim "BJen" wrote in message ... I've got a late '80's model flight computer with an integrated non-GPS final glide calculator and an IGC GPS logger. I'm thinking about upgrade options to minimize the mental workload for these items that I currently have trouble with: What's the current wind speed and direction? What altitude do I need to final glide upwind to airport X and turn back downwind to home at airport Y? What airport is easiest to get to when I'm low given different airport field elevations and current wind direction. When should I turn to get home 3 hours after I started this task? I'm not really sure what options I have. More generally, I'm wondering what the PDA's can do. I presume they have no airspeed/pitot input, no TE input and only GPS altitude. Is that correct? Can they perform vario/TE/STF/final glide functions? I realize they can do GPS moving map, flight track recording. I suspect they can figure wind from a circling algorithm, but without TE or airspeed can they replace my old flight computer? If not, can they supplement it (with my GPS/pressure logger) so I can avoid the expense of a new flight computer? Anyone want to give me some comments here? Thanks. |
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