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You are witnessing the last 25 min. of a 34 mile Crosscountry RC-Soaring flight. You are onboard the chasecar of "Team-345" with Scott Meader (driving), Philip Kolb (coaching) and Reinhard Vallant (flying) the XC-Competition in Montague (CA) 2014.
It is the third day of the competition and the task was set as a speed task along a 34 mile 7-turnpoint round course.
The day started quite slow with thermals in the range of 1.5m/s (300ft/min) climb.
The video starts at a time where we have been about 1:10h on course and just got back to "working altitude" after a risky low altitude safe.
You can see some high ground on the right had side of the car (cameras left) where we decided to stay over because of the higher thermal activity. The other side of the car was green and wet. As there were no Cumulus clouds ("blue day") we needed to fly much more after ground signs and terrain than chasing possible clouds for lift.
You can also see how the workload is divided between the team members.
Scott keeps really good care about the traffic and not to obstruct others in traffic.
He is also informing the pilot about the upcoming road’s track (left turn / right turn etc.).
He is confirming the desired speed to the pilot and informs him about speed limitation on the road as well as about optical obstacles between the car and the glider. He keeps track about groundsigns (birds / trips etc.) and other competing teams/gliders too.

Philip is coaching and keeping an eye on the task and the weather conditions. The tactical possibilities are manifold in XC-Soaring, so observing the surroundings is paramount in finding tactical solutions. The coach is giving advice on the flightpath (f.e. directly via telemetrical GPS data or by offering possible faster routes). He is also assisting thermalling by calling the momentary climb-values, so that the pilot can understand the “shape” of the thermal better. It also gives a direct understanding to the time when a “thermal topped out”. The coach is also the one who can calculate and estimate the glidepath (f.e. on final glide) and necessary climbrates according to MacCready-theory.

Reinhard as the pilot is the one who is the head of decision making. He has the direct link to the plane and should not be overruled by the team members. As you see in the video, he seems to be the “coolest” among the team members, but that’s mainly because he always has the highest workload by controlling the aircraft. He also has the only direct Variometerlink and –tone in his ear not to overload the work atmosphere inside the car. He also gets the integral climb and sink values from the plane by audible link every 20seconds.

We figured out that this kind of workload separation worked very good for our team.

Following the video:
0:00 – 3:30min: Flying over the high ground towards the turnpoint
3:30min: Taking the turnpoint (with the car). It is a 180 degree turn.
3:30 – 6:30min: “Tanking altitude” in a good thermal
4:40min: Reinhard rebuckling to see the plane for the upcoming glide
7:10min: Philip calculating if a final glide from here would already be possible ;)
7:10 – 11:50min: Gliding along the high ground towards north
around 12:00min: leaving the high ground into wet flat lands and the thermals instantly vanish.
around 13:00min: hitting sink…Philip giving up his wishes about this being the final glide ;)
13:20min: Scott spotting birds thermaling ahead
14:00min: Reinhard hitting “the boomer” at about 300m AGL. It was our best thermal of the whole competition.
15:07min: Reinhard already climbed 200m – integrated that’s a 3m/s (600ft/min) thermal right now.
15:08min: highest recorded momentary climb of 4.1m/s (820ft/min)
16:00min: Scott and Philip discussing about the final glide. A 1over 14 would do right now!
17:00min: Reinhard climbed 500m in this thermal – in about 3 min!!! 
17:15min: Adjusting for final glide and heading out.
19:15min: Approaching the village and slowing down to 30Mph because of speed limit.
20:00 – 21:15min: Passing the village
around 22:00min: Reinhard flying at about 85Mph and thereby leaving the car behind
22:50min: The plane is inside the last turnpoint while the car is still about 1/4mile behind
around 23:05min: Reinhard is taking the last 90degree turn to the right towards the finish line
around 23:30min: The car is taking the last 90 degree turn towards the finish line
23:40min: Speeding towards the finish line
24:17min: Passing the finish line

The total flight time for completing the course was 1h38min. for this day, which gave us the win of that days’ task. The “boomer thermal” helped a lot to stay ahead of our competition by 15min. for this day! A very happy ending to an exciting flight!