how much does your reserve weigh rick?
do you know how much your friends weighs with out choot?
are these airsraft painted?

remember;rick has 2 layers of carbon only in his d scin,its an experiment,he is the test pilot,it is working so far,he is reporting oil caning whitch other aircraft do and is not in its self a problem,if there is going to be a problem it will come in the form of a sudern violent flutter event with the thin springy scins and right combination of speed,flap.flaperon deflection,turbulance,temprature an G's/load ....what other parts are diferent to the plans rick?

i have always sugested if some one wants to do a carbon d scin to go for heay and live rather than go thin and light in an atemp to try compete with wood.

i have also cautioned of changing the weight distrabution of controll surfaces and wings for reasons of flutter...moving weight to the rear like the storie of a tempest owner that was killed after extendig the elerons for moor roll contrl is a bad idea.


a solid block of carbon 1 m3 weighs 1800 kg
a solid block of water 1m3 weighs 1000 kg
a solid block of resin 1m3 weighs round 1100kg to 1200kg,some up to 1400.
a solid block of the aircraft plywood 1m3 varies from 400 to 800 kg

for carbon fiber scin to be the same weight as a wood scin it needs to be half to one third the thickness.

the relation ship between thickness and stifness is not linear.

i can not remember the exact numbers but i think it was if you dobble the thickness the stiffnes goes up 34 times...it does not matter if i have the number wrong the point is it is a masive/huge diferance.

at this thin pannel scale ,thickness plays a much bigger role than material strenth.

but but but you can put a light thin foam core between the carbon scins....bull s%^&#......the two scins you start with are round the same weight as the wood....any thing you put between them makes the pannel heavier..........now,light foam core is bubbles and resin....the lightest 40 kg for a 1m3 solid block....it has huge bubbles....the surface takes up a huge amount of resin.....it has 2 surfaces that are resin hungry.....resin weight for a 1m3 solid block is 1200 kg.......a 3mm light foam core will end up adding moor weight than a 3rd layer of carbon.becaus one third of the core will be full of resin...if you heated a sample of this light thin core pannel and peeled of the carbon scins and weighed the core you would be surprised to see its density has risen from 40 kgm3 to 400 kgm3.

there is a consesus between us amatures on here that 3 layers may work.
we also agree the wood may work.

rick will be able to tell us if 2 layers will work.he also has the option if he wishes to change to wood or add another layer.

russ.



in australia once you are over 70kg with out choot you are no longer a hang glider...the aircraft must be registered and maitnanced,you need a matinance ticket for that and the paper work..you can have a reserve but there is no set reserve weight alowance.you also then have to be a member of the gliding federation of australia and be a member of a club
i cant remember the US reserve choot alowance?
russ


On Thu, Dec 27, 2012 at 5:48 AM, <This email address is being protected from spambots. You need JavaScript enabled to view it.> wrote:



I know the feeling, I have missed a few deals along the way. That is one of the reasons I snapped it up.

I have not set it up yet, the root ends look real good, there are some Al plates missing on the nose but easily replaced, looks like pull rivets sheared. The spar looks good but has factory wrinkles in the outer Kevlar wrap. Funny how that happens when you wrap things then vacuum bag them, no evidence of any compression damage. It has a soaring pod for foot launch with new windows. The power pod is in good shape and looks well built. 3 cyl engine supported by Compact Radial Engines. The lower power pod fairing has some damage spots maybe hitting brush on landing or handling rash.

I have been looking at the Elazeair you tube videos, there web site is just a picture right now. I have a friend with a Swift close to help me with the checkout.



This is it at the Point of the Mountain, looks like he could have used some flap for the takeoff.

Regards,

Charlie

In a message dated 12/26/2012 6:54:56 A.M. Mountain Standard Time, This email address is being protected from spambots. You need JavaScript enabled to view it. writes:



A friend I fly with was really kicking himself for missing that Swift. It sounded like an unbelievable deal also. What kind of shape is it in?

---

From: Charlie <This email address is being protected from spambots. You need JavaScript enabled to view it.>
To: This email address is being protected from spambots. You need JavaScript enabled to view it.
Sent: Tuesday, December 25, 2012 1:54 PM
Subject: [Carbondragonbuildersandpilots] Santa came by...




Hi all,

I started flying an Ez Riser in 1976, great ridge lift glider but very bad in and between thermals. Of course I was poor at thermaling when flying with the flex wings. In 1982 I upgraded to a Comet 185, many hours later and with my maximum cross country distance at 50 miles I upgraded to a Magic IV. In 1989 it was a short season for me. June usually starts the XC season in Utah. Second weekend in June I cracked off a75 miler. Third weekend after a brutal claw my way out of the Kolob Canyon area to 12,500 ft msl 4.5 hrs I landed north of Salina UT, 120 miles. The next weekend, a stationary front from WA to AZ was set up. Of 9 people in So UT flying, 5 miles from launch I hit CAT more severe than anything I had encountered in 500+ hrs of soaring. Inflight broken king post, tuck inverted, folded around me and spun. Hand deploy chute too slow to open before being reeled in by the glider. Crashed exactly right and walked away.

I have been flying a Dragonfly since 1995 but have kept an eye on 103.5 gliding stuff. I met Jim Maupin in 1986 and spent an hour looking at the prototype. The Brightstar Swift came out and blew past everything I was very impressed. I have been looking for a ultralight soaring machine non weight shift since 2008. I tried to buy a copy of the Carbon Dragon plans unsuccessfully and was considering purchasing the plans for a UFL-1.

Last Friday I received notice that a Brightstar Swift for sale locally . Saturday I went to see it and bought it. Now I need warm weather before going to the training hill.

I will still be monitoring the group and can do solid and surface modeling if needed.

I got a Swift for Cristmas!!!

Regards,
One Sky Dog 1000+ hrs
Charlie Johnson
Ogden, UT