Recently I made another attempt to get good KAP photos of the Happy
Valley Reservoir from the park on its eastern side. Not a dog-owner was
in sight this time - good! Nothing against them, but people walking and
playing with dogs simply does not mix well with doing KAP.
Circumstances on the day dictated doing the flying between 1pm and 3pm. A risk in the warm sunny conditions, due to inevitable rough air up there. So the ever-reliable Multi-Dowel Barn Door kite was selected. It has never let me down in light-to-moderate winds!
Last time, only the flight which took video got high enough to see the water. So stills had to be taken from video. No such problem on this session though, despite having to wait for a lengthy gust to get the kite up.
The panoramic photo below shows a small section of the pale-brown West embankment of the reservoir. Just like last time, except from a slightly different view point. Play 'spot Tim's white Lantra' in the enlarged version. The car does its best to sneak into various KAP panoramas or even aerial shots from time to time!
Overall, the weather this time was remarkably similar to last time. As before, a line of Cumulus clouds stretched right up and down the Flinders Ranges, some of which you can see in the panorama. The sky was almost blue over most of Adelaide.
Winds were light, but not as light as last time. With every thermal lifting off or passing through, a worrying amount of leaf noise would be generated in the nearby tall gum trees. Would it overpower the kite?
Once again, doing all the setting up of line, rig and kite was sweaty work. The temperature turned out to be just below 35 degrees C at the time.
MBK Multi-Dowel Barn Door
MBK Multi-Dowel Barn Door
Lifter: The 2.4m (8ft) span Multi-Dowel Barn Door kite, which is one of the designs in the e-book up the top there. I plain forgot to attach drogues to steady the kite's motion. But with launching so marginal today, it was perhaps for the better. Even so, the kite descended right to the grass before I could ready the camera for its second sequence of shots.
KAP Rig: Bamboo skewer cradle, suspended from a Half-Picavet line. Camera pointing down-wind, with direction adjusted between flights to capture the entire reservoir. Perhaps other wind directions would allow just two photos to capture the entire extent of the water.
Camera: Pentax Optio WG-2 with built-in intervalometer. For the aerial shots, EV was set to -0.7 and focus was fixed on infinity. Auto ISO ended up on 125 with a shutter speed of 1/1500th.
Click on the thumbnail images below to see them much larger...
Three panoramic photos were taken with the aid of the little yellow chair which is
marked with the appropriate angles. The camera stitches 3 photos into one. The best panorama appears near the top of this page.
After laying about 60 meters (200 feet) of line, I walked out with the camera, the bamboo cradle and the Multi-Dowel Barn Door kite.
The first job was to check the camera settings and insert it into the bamboo cradle. Next, the two sides of the Half-Picavet suspension were unwound and attached to the flying line. Finally, the big Barn Door kite was rigged and launched without much trouble in the next hefty gust.
With the camera suspended right in front of me, a small tweak ensured that it was pointing in roughly the right direction. Then it was time to carefully walk back to the kite's anchor-point, letting the flying line slip through my hand and under my arm. This worked OK since the average wind speed was quite light. If everything tightened up, I just slowed down a bit.
During the walk-back, the kite hung fairly low. At one point it was necessary to stop completely to allow some gain of height.
Back at the anchor-point, it didn't take long for the kite to smoothly gain height until it was hovering around 40 degrees or so most of the time. A bit low, but it was right near the bottom of its wind range and carrying the KAP rig on the line. A patch of rising air helped the kite up much higher, as evidenced by some of the resulting photos.
It looked like the camera had been pointing slightly to the South, so on bringing the rig back in, I tweaked the moveable bamboo cradle about 20 degrees anti-clockwise for the next sequence of shots. With a 4-minute delay before the first photo went off, there was just a little pressure to re-launch the kite quickly. The kite had descended all the way to the grass while I wasn't looking!
This time I had used a steel carabiner to slip along the flying line and bring the KAP rig down. So now it was a matter of reversing the procedure. Walking back with a finger holding one end of the shiny steel loop and the flying line slipping through the other.
Towards the end of this second flight, things got interesting, with a massive thermal forming right over the field! I could even see the cloud starting to form, several thousand feet above. The big blue Barn Door got sucked right up to vertical, and pulled the line tight while it was there. The hapless KAP rig swung every which way, doing a spot of KAP pole-dancing around the line.
After a couple of anxious minutes and a couple of vertical dives downwind from overhead, the big kite steadied and the whole setup returned to normal. As if nothing had happened. Whew.
KAP is often something of an adventure. But I think the photos were much better this time...