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Christian, Of
course, in stating your doubts, you have no automated looping foil to
test against kPower pilot-kite-based looper rigs, but note how
effective the smallest Prism SnapShot is at doing the work of a
foot-pump. Ed can confirm this rig sets up or stows in as little as a
minute or two (with the stowage reel provided). This self-relaunching
design also shows that reeling PTO methods are hardly necessary- Here
is a Wayback cached version of KLG's old site, with videos of some
early looping-foil-under-a-pilot rigs. The first looper video shows
quite good power from a very small DC60 X-Kite- Note corrected text: "Christian,
I really insist your guess is wrong about the two kite rig. Both pilot
and power wing really do both add energy to the system, from what I
have experienced flying many looping kites under a pilot for seven
years." If energy is being "zapped" (dissipated), then where does it go, under Conservation of Energy law? On Monday, May 11, 2015 8:10 PM, dave santos <santos137@yahoo.com
Dave, I
am not interested in being a part of a some conceited accreditation
committee for AWES. We are all very aware of your gripes with private
ventures but I have no patience for bureaucracy. How would the source
of our capital effect you in any way? We need to make a prototype just
as each of you have, so quit being so hypocritical. Yes
the looping kite does add energy to the cycle; however, not during the
correct phase/stroke, which in turn "zaps" energy. This is obvious
Dave.. if the pilot kite above moves during the power stroke.. it will
decrease effectiveness. Pierre,
In your testing of looping a foil, you saw that when the kite looped it
would gradually decrease in altitude. Daves Looping foil attempts to
solve this problem with the pilot kite (this is what I think he means
when he says "it actually adds energy to cycle" (but decreases energy
for the power stroke specifically)), though it may work in this
instance, it is far from efficient, especially if he plans on
collecting energy orthogonally instead of with direct aerodynamic
force. I know you often get focused on addressing one issue and omit others. So Ill restate them. 1)
It doesn't reel line in or out, I dont see any scalability other than
perhaps making the kite larger, however stacking in a convenient
modular fashion may be out of the question. Im also thinking that the
whole system would need to be re-tuned if the main line extended in
altitude. 2)
It doesn't seem like it can be used for transportation, (a
requirement for my investor). How would you sail close-hauled if a
pilot kite inhibits the power kites range? 3) The Pilot kite zaps energy from the looping kite during power stroke (not cycle, mind you). 4)
Looks like it would be dangerous to consistently venture deeper into
the wind window, Meaning there would need to be a human attendant in
variable winds to stay erect WITHOUT FAIL, this means without
crashing. 5)
Cannot set up your mechanism and transport it where it actually needs
to go quickly.. especially singlehandedly. I would love to hear how
long it takes Dave to set up and break down, I sure hope that pilot
kite has some sort of depower. 6) Doesn't double as both CWKP and stationary AWES.. Yes,
Dave's looping foil could overcome all of these concerns but the result
would look nothing like his current set up. Needless to say major
redesign would be in order. Christian On Mon, May 11, 2015 at 4:07 PM, Pierre BENHAIEM pierre.benhaiem@orange.fr [AirborneWindEnergy] <AirborneWindEnergy@yahoogroups.com
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