Public Lab Research note


Jim Day's Picavet rigging on my Saturn V

by mathew | June 03, 2016 23:51 | 130 views | 0 comments | #13164 | 130 views | 0 comments | #13164 03 Jun 23:51

Read more: publiclab.org/n/13164


I'm a big fan of my Kaptery Saturn V rig. and have recently flown it with a new, easier-to-handle picavet rigging.

Previously, it had a rigging as @cfastie shipped it, looking like this:

Chris Fastie's rigging for a redstone picavet

While at the Fort Warden Kitemakers meetup I had the pleasure of meeting Jim Day, who has been doing kite aerial photography (KAP) for a few decades now. He recommended that I shorten the picavet rigging on the kite side, and just use a single string:

P_20160312_084727.jpg

I copied Jim:

IMG_3957.JPG

Jim's reasoning, which my field test bore out, was that getting rid of all that string and replacing with a single line results in a lower chance of tangles. Jim also believes that the rig is more stable because the angle of the strings on both sides of the picavet is more even. I didn't see that benefit on my rig, but the simpler handling was much appreciated.

Flight and photos

The rigging flew great! I have to change the timing on my skycam controller to slow down, however. I got a lot of blurred photos with my current camera settings, because the rigging started to pan while the photo was being snapped. I hadn't had that trouble before.

A contemporary Portland scene, clandestine encampments and construction:

IMG_3897.JPG

Self portrait with bike:

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Union Pacific Rail Yard:

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Detail of Jim Day's rig:

Jim had a pretty nice, single-servo KAP rig with remote controlled camera trigger:

P_20160312_084323.jpg


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