Welcome to the GWTW Forum. Guests (non-registered users) can view the forum but are unable to post. If you don't have anything to say then why would you bother to register? One of the most popular sections of the GWTW Forum has long been the Swap Meet. A great place to sell old, seldom flown kites or to get great deals on used (gently flown) kites. Only registered users can see the Swap Meet section, let alone wheel and deal. 1000's (literally) of kites have changed hands thanks to the Swap Meet. There are several more benefits to being a registered user, but you'll have to join our little community to find out all the "secrets". Questions or concerns? Contact Steve ... just drop an email to: email@example.com
Just finished the Bird of Prey (BOP) 36 made from PC31. Couldn't resist test flying it in my front yard in the dark with the front lights on. A dark, very damp and 48 F degree night are not the best conditions to test out a new design, but the BOP 36 flew great! The wind was light at less than 3 mph.
This version of the BOP 36 weighs 17 grams and has a sail loading of 0.295 oz./sq.ft., which is slightly less than its bigger brother, the BOP 48 at 0.300 oz./sq.ft. Due to the very damp conditions and wet grass from the storm that just passed, the BOP 36 and the flying line were very wet (and heavier), but it flew like a champ. Had it in the air for about an hour.
The goal for this version of the BOP was to have a higher sail loading version of the BOP 36 made from Cuben fabric, to be used for light to moderate winds, which can be flown very aggressively. Since the chord is less than its bigger brother with about the same sail loading, it will fly slightly faster than the BOP 48 due to less contact time of the air with the sail material (Reynolds Numbers). This was by design and this version of the BOP 36 is a hot little glider. It easily glides to the corners of my front yard, which open area is about 60 by 60 feet. It accelerates and spins quickly under aggressive flying line inputs, yet transitions into a moderate glide speed when the tension on the fly line is relaxed. Could be a fun kite for indoor ballet with fast tempo music. Attached is a picture after I dried off the kite. I have found with the BOPs made from PC31 that itís good to leave them assembled for a while, which allows the sail to flatten out. All of my BOPs made from PC31 are hanging assembled in my basement since they were built.
Will tinker a little with the center of gravity (CG) to confirm I am at the sweet spot. The CG is currently set the same as its light weight Cuben brother, at 8 inches from the nose of the sail material. Will fly it again during the day under dry conditions.
items purchased through the links below help support the forum
Our forum is made possible by the good folks whose ads appear below and by the members of our community (PayPal donation button at bottom) In case you missed it each ad is linked to the sponsors web site. So please, take a moment and visit our sponsors sites as this forum wouldn't be possible with out them. Interested in running an ad for your business or kiting event? Contact Steve at firstname.lastname@example.org for a quote.