Sunday 24 January 2016

Let there be flight: Part 2.


We wait.





The clouds lift and part a little.



We wait.



The slow trickle of tourists continue.

Dean gives a short briefing - effectively, this is a clearing day, the ground is wet, the thermals are weak - try to stay up.

We kit up quickly and layout on the north facing launch. Phil is first away, followed by myself, then Simon. Dean keeps watch on each of our launches and thus will be last.

Phil is off.


Dean lending a hand.

Simon in the background getting his Sigma 9 squared away. Get used to having an audience if you want to fly here - we are part of the attraction.
While we are getting ready, Phil makes a go at trying to climb out - pushing out further to maximize his distance over ground and have a better chance of locating a well formed thermal.

The wind is nil. Forward is the word of the day in my books. The thermals like to pop off out front Steve had warned us - so don't expect much wind on take off - even mid day (except when the high summer sun cooks both sides of the mountain to result in a dust devil spawning mass of churn).

This will be the inaugural flight for my custom PG HUD software on the Recon Instruments Snow 2. The Snow 2 were built specifically for skiing/snowboarding and run on a custom fork of Android OS Rev 16. Having been the Android guru for one of the local tech start ups - seemed like a no brainer to give it a go at writing an app that would better suit my needs.


Lower left is flight duration.
Above it is altitude in meters.

Lower right is ground speed.

Lower Center is a MFD (MultiFunction Display) that flips based on context between vario, glide ratio, and height above launch. In time it will also include the thermal 'dot' to mark guesstimated location of the core.

Middle is the compass.

Above the compass are a variety of bearing/distance markers. The green inverted arrow above is the direction and distance to launch in km. There are also markers for guesstimated wind direction and strength (in kph), line of travel, and direction/distance to next turn point (if a task/waypoint list is uploaded).

Connectivity with a XCTracer Bluetooth vario is underway and looks promising. But today I am running strictly based off of the internal GPS and gyro/accelerometer built into the goggles.

The focus of this flight is of course familiarity with GV but I will also be looking at testing the apps ability to display correct ground speed, heading and altitude (as compared to a Flymaster NAV). Distance/direction to launch will also be looked at.

Launched and away.

In the pod, check for traffic, settle in. A glance at the goggles and one at the Flymaster - altitude within 50m of one another, speed spot on. Heading looks ok. A turn east and a glance back to launch - yep the green arrow shows launch where I came from and 0.3 km away. Sweet. Test done. Time to get to work trying to stay up.

And work it is. There are 0.1 m/s bumps of a second or so duration, but aside from that - nothing with any meat to it. The flatland fliers from the UK would make short work of this stuff - but those of us 'raised' in the mountains are going to get a quick lesson in down shifting.

Simon dropping in for a visit. Bet he is loving this stuff.

I push out like Phil ahead and below me. I am hoping he will mark a climb while I am still high enough to capitalize on it. I see him circling and climbing ever so slowly. Then the Urubu appear. The Urubu are the answer to the glider pilots prayer for a mobile thermal marker. These large black vultures are completely unbothered by gliders, have a similar sink rate and are lazy (they only take good climbs). Steve pointed out - watch the Urubu - where they are coming from and where they are going and remember that there are only two reasons for them to circle - a thermal or carrion.

A gaggle of Urubu form to my right, time to pay them a visit.
I slot in with the birds as best I can (Dean mentioned they don't aways pay the best attention to us - especially our lines - so make sure they are aware of you - including shouting at them if they get too close). More close in to bring our little gaggle to a dozen or so. Together we climb. And then as quickly - they are gone.

And so is my lift.

Phil is down in Jurassic Park and it looks like Simon might be on his way there. There is no chance of making it across the river and with no birds in sight - best to figure out LZ options now. Steve made it clear to have the LZ sorted out up high here - especially when it comes to power lines -> make sure there are none before committing to a particular LZ. Options - have many.

Jurassic Park below.
Touch down to find Steve already waiting with the truck running and the AC on full. To the local pilots bar across the river we go in search of cold caipirinhas and debrief by Dean.

Flight one down and the HUD software is showing promise. 



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