Hello Richard, hello all! For those of you who are proud owners of “Advanced Soaring Made Easy” it might pay you to have a closer look at pages 181 - 183 of the third edition.
Kind regards to all! Bernard > On 28 Apr 2015, at 5:01 am, Richard Frawley <[email protected]> wrote: > > And there it is... Having now tried at least 8 different manufacturers modern > (released in the last 5 years) varios, in terms of gust rejection I find they > all work very well until they get hit with the strong, narrow, gusty summer > thermals we get between trigger time and the late afternoon when things > usually tend smooth out. > > To my observation, They all struggle to effectively differentiate strong > horizontal components from the vertical components and for good reason when > one takes the time to fully understand the physics and resolutions of systems > involved. > > To date, I have seen a lot of claims with little or no scientific method to > back them up and so far, little observable operational difference when it > comes to this one aspect. Modern varios of course now have many functional > aspects to consider in your particular selection and by all accounts the > pilots built in posterior indicator is still the best filter. > > I do feel it's important to mention that The effects of Gusts are much > stronger than many pilots perhaps give credit for. As Paul Mander points out > in his Speedweek sessions, if you lose the core it far less likely that the > thermal has moved (as many think is the case) but rather that the horizontal > gust has simply moved the aircraft off its optimal path, as after all, there > are magnitudes of differences of inertia of a thermal air mass and a tiny > glider. > > Richard > > > > > > > > > > >> On 28 Apr 2015, at 12:30 pm, [email protected] >> wrote: >> >> Send Aus-soaring mailing list submissions to >> [email protected] >> >> To subscribe or unsubscribe via the World Wide Web, visit >> http://lists.internode.on.net/mailman/listinfo/aus-soaring >> or, via email, send a message with subject or body 'help' to >> [email protected] >> >> You can reach the person managing the list at >> [email protected] >> >> When replying, please edit your Subject line so it is more specific >> than "Re: Contents of Aus-soaring digest..." >> >> >> Today's Topics: >> >> 1. Re: ClearNav Vario (go_soaring) >> 2. Re: varios, redundancy (DMcD) >> 3. Re: varios, redundancy (Jim Staniforth) >> >> >> ---------------------------------------------------------------------- >> >> Message: 1 >> Date: Tue, 28 Apr 2015 08:45:13 +1000 >> From: go_soaring <[email protected]> >> Subject: Re: [Aus-soaring] ClearNav Vario >> To: "Discussion of issues relating to Soaring in Australia." >> <[email protected]> >> Message-ID: <[email protected]> >> Content-Type: text/plain; charset="utf-8" >> >> Another report on the new CNv from a user in the states. >> >> I concur on 1 sec time constants for pointer and audio. The vario signal is >> very smooth at this speed. >> >> I am in love with the new climb audio!!!!!! It's much better at >> communicating lift in the 0 - 3 kt range than anything Cambridge or >> "Cambridge-like" (including CNv 2.7). The pointer is 99% superfluous now. >> Audio plus averager numbers and I'm good to go! >> >> I found the climb & cruise vario & wind information flawless in Eastern US >> soaring conditions. Yes, a big Western US gust on the nose will still peg >> the vario. We're working on that now. >> >> The correlation between seat of the pants and the vario is now excellent. >> 2.7 was better than the Cambridge 302 in this regard, but wasn't the >> breakthrough sought. Some users liked CNv 1.0 better than 2.x.... 3.0 is a >> quantum leap. The correlation is so good now, that it is very easy to tell >> gusts from thermals (because there's no seat of the pants thump preceding >> the vario indication. >> >> The navigation UI still needs work. It's perfectly functional, but it's too >> much head in the cockpit time to manage. >> >> >>> On 27 Apr 2015, at 08:14, Adam Woolley <[email protected]> wrote: >>> >>> Simply phenomenal, I thought the CNv 2.7 was my favourite vario before, now >>> CNv 3.0 it's clearly in the lead. I test flew with V3.0 yesterday in very >>> windy thermal conditions before being able to transfer into local wave. >>> The vario is extremely smooth, no sign of gusts (with the new gust >>> filtering algorithm), the smart averager being quicker to update and far >>> more accurate than the last version. I flew with 1.7s response rate at the >>> beginning, then reduced it to 0.5s, followed by settling at 1.0s; all as >>> smooth and perfect as the other! >>> >>> Are you looking for a new vario for your glider or club, and want to save >>> money? It?s simple now, just buy a ClearNav vario - and thats it. There?s >>> no need for a winter backup now, this vario is impressive. I?ve flown with >>> my vario since the first various were bought out, it?s never failed. I >>> only fly with one vario now in my glider, and trust it solely. >>> >>> I found the wind update to be excellent, though I can understand why some >>> want straight line wind updates incorporated - only once I got into the >>> wave, I found the wind would only update at the 180* turn upon each lap of >>> the wave bar. Still, it's excellent! Thankfully, in AUS we only race in >>> thermic conditions, so this will never be an issue for us here. >>> >>> The new audio is great too. My only gripe (which will soon become an >>> option), was the tone that sounded every time you?d transfer from cruise to >>> climb. It really didn't bother me as such, but would like it to be silent >>> as it was before. >>> >>> All in all, amazing work from the CNv team - I look forward to future >>> updates, and to see/feel/hear the vario when all the sensors are hooked up. >>> Wow! >>> >>> >>> Cheers, >>> WPP >>> _______________________________________________ >>> Aus-soaring mailing list >>> [email protected] >>> To check or change subscription details, visit: >>> http://lists.internode.on.net/mailman/listinfo/aus-soaring >> -------------- next part -------------- >> An HTML attachment was scrubbed... >> URL: >> <http://lists.internode.on.net/mailman/private/aus-soaring/attachments/20150428/65110269/attachment.html> >> >> ------------------------------ >> >> Message: 2 >> Date: Tue, 28 Apr 2015 09:29:56 +1000 >> From: DMcD <[email protected]> >> Subject: Re: [Aus-soaring] varios, redundancy >> To: "Discussion of issues relating to Soaring in Australia." >> <[email protected]> >> Message-ID: >> <cad0mmpx1bfhhwbktgrnnkc3x--_pu33q9ycu5sw379jek9z...@mail.gmail.com> >> Content-Type: text/plain; charset=UTF-8 >> >>>> The Winter got me home on the last weak thermal of the day a couple of >>>> times. The electrics were still working fine, but the Winter had greater >>>> sensitivity. >> >> Agreed. Although I use the audio from an electrovario, there's >> something about the way the Winter needle moves which tells you far >> more about the air in the immediate vicinity of a thermal. That and >> your arse. >> >> You hear the noise from the noisy vario, glance down at the vibrating >> needle of the Winter and then wait to turn or pass it up. I rarely >> look at the electric thing other than to see what the average is after >> a few turns. >> >> My opinion is that the undamped mechanical varios are very useful indeed. >> >> D >> >> >> ------------------------------ >> >> Message: 3 >> Date: Mon, 27 Apr 2015 16:50:56 -0700 >> From: Jim Staniforth <[email protected]> >> Subject: Re: [Aus-soaring] varios, redundancy >> To: "Discussion of issues relating to Soaring in Australia." >> <[email protected]> >> Message-ID: <[email protected]> >> Content-Type: text/plain; charset=windows-1252; format=flowed >> >> Mike was the first to include this feature, but... >> Every electric vario can have a backup battery. >> Pardon the Text-O-CAD. >> Jim >> SPDT ON/ON Switch >> | >> Main Supply + _________ >> \______ Instrument + >> Backup Supply + _______ >> >> >> >> ------------------------------ >> >> _______________________________________________ >> Aus-soaring mailing list >> [email protected] >> http://lists.internode.on.net/mailman/listinfo/aus-soaring >> >> End of Aus-soaring Digest, Vol 139, Issue 48 >> ******************************************** > > _______________________________________________ > Aus-soaring mailing list > [email protected] > To check or change subscription details, visit: > http://lists.internode.on.net/mailman/listinfo/aus-soaring _______________________________________________ Aus-soaring mailing list [email protected] To check or change subscription details, visit: http://lists.internode.on.net/mailman/listinfo/aus-soaring
