Calvin19

Members
  • Content

    3,333
  • Joined

  • Last visited

    Never
  • Feedback

    0%

Everything posted by Calvin19

  1. I was pleasantly surprised by how good this film was. Sully wins.
  2. I'm reluctant to say "impossible", mainly because damned near every time I do, it turns out it was possible. BUT... 200# test line is pretty strong. And pretty heavy. To get a kite up 800 feet, it would take well over 1000' of line. I have my doubts about the ability of even a large kite to lift that much weight. However, even "pretty strong" isn't all that strong. I would expect the "shock load" would snap the line before it would take the girl off the ground. And even if it didn't, the sudden jerk from the plane "taking" the line would be more than any human would be able to handle. There's practically no chance of her being able to hang on. Try it yourself - see how much force it takes to yank a spool of kite string out of the hands of someone. I highly doubt that anyone would be able to hold onto a sudden jerk well enough to be lifted off the ground. Last, but not least - I highly doubt that a kite string would put a "2 inch gash" into a metal prop. Again, I don't care how strong the line is, the prop would cut or break it. A few things... Because of angular force vectors and delta inertia, the "snatch" would be mitigated through the snag and load points. 2x 200b line is plenty strong to lift a kid. I use 300/200lb line on my quad kites. Never broken a line. It would basically be a smooth acceleration. As for altitude, I have a feeling the report is off. No one I know flies a power kite needing 1000' lines. -SPACE-
  3. Calvin19

    FIFI

    that is seriously the only bit of meaningful history you can dig up on Fifi? not worth mentioning ANYTHING else?
  4. Hmmm. As amazing as that event was, as impressive as Cap. "Sully's" performance was, I feel like it deserves something more honorable than a hollywoodization.
  5. Anchored One Love and took to the reef and sandy plains with the dive fin. Funnest time I have ever had with water. Don't forget to breath! https://www.facebook.com/Calvin19/videos/896467816181/?pnref=story
  6. Well, I will admit effects these days can be very, very good. What they can't do though is violate logic and still be anywhere near believable. For instance, it makes no flipping' sense whatsoever something like this would be tested with a real human on round 1. So, that's the very first problem right there. Then you have to just start looking at the other basic engineering issues, like those "dishes" supposedly used to create the magnetic field. Uh . . . no. We're talking about thousands of pounds of force that would be involved and the dishes have amazingly flimsy mounts. There's just so much wrong with the video it should instantly flip into FAKE category by anyone who has taken even high school science. 100% agree. There are a lot of fake video promotions for digital effects artists. My favorite is the 737 hitting the drone. https://www.youtube.com/watch?v=PtNjz_Qtx9c I admit it fooled me the first time I watched it. After the 3rd view I knew it could not be real for several reasons. I never even caught the artists' tag on the winglet. Airplanes are pretty strong, and at the altitude they were at they would not be doing much more than 200mph. It would not have caused that kind of damage. Most likely a dent and a small portion of skin taken off the winglet. Biggest issue was the closing speed and angle. multi rotors are not very fast, and the plane at 200mph that drone would have been in view for about 1/8 of the time it was visible in the published film.
  7. Also, I did a voluntary 3 hour "check ride" with the lead charter skipper for the rental company. Everything went perfect. The cat was weird to get used to (jibe/tack slop response, etc) but 5/5 stars. He cut it off early and sent me on my way.
  8. Also, triple points to whoever can identify the flag I decided to fly for the trip.
  9. He did ok. He has some learning to do for sure. 3 out of 8 got sick the first day, no vomiting but they were pretty out of it. The most exposed (to open Atlantic)(and all upwind) is the first long leg. It was a surprise to them. "Big" water is scary for the first time to everyone. I had one friend who has done some sailing and he was good to have around. One of the crew had been a tech diver for 10 years and was really good with tense tacks, etc. She even wove a new bridal for us out of 1.25" line. Pretty bad ass girl.
  10. Hey now my boat ain't that big... considering where I like to play That's more like it!!! My first big water was on a 27' off san diego. 3 days out. 1.5day SW, then 1.5 day back. Good times!!! -SPACE-
  11. The crew gave me that hat the day we set sail. SUPER dorky but ended up being the best wingman I ever had. We were able to make 5kts VMG at 41 degrees AWD. (19kts AWS) The boat is kinda a hog, but she did well. Good for a crew that only had 1.7 competent sailors aboard. I'm a monohull man no doubt. -SPACE-
  12. What is that saying again.............................oh yeah If there are no pictures or video.. it dint happen... Post em Of the local bikini girls that love sea captains? Or just us on the boat?
  13. If anyone is interested, the charter I skippered for 2 weeks went great. 48' Leopard catamaran. 8 crew. My first cat as a skipper. Good times. Sharks, diving, fishing (and watching a mako take out one of our tuna seconds before landing it), hydrofoil dive fin towing, making awesome upwind VMG, 3 countries, bikinis, excellent food and drink. All good things.
  14. Fox Two! In the words of our generation . . . . UP. . . . YOURS!!! Best line in that movie IMO. "Hello boys! I'm BACK!" I really liked "I picked a hell of a day to quit drinkin'"
  15. Calvin19

    rig weight

    Nope. It flies OK but It collapses very easily. Needs a ton of work. I suspected they would collapse easily. On the other hand, how quickly does it recover, since there are no cells to reinflate? Very fast recovery/re-inflation. Fast enough to where I considered landing it jump #1. Zero heading change(most important thing by far).
  16. Calvin19

    rig weight

    Nope. It flies OK but It collapses very easily. Needs a ton of work.
  17. Calvin19

    rig weight

    Truth. That is why using the terms "mass" and "weight" as completely separate concepts is important.
  18. Calvin19

    rig weight

    I worked on single surface BASE canopies for two years ('13-'14) for a company in Boulder. Test jumping and all. Fun stuff. We paused the project, needs a LOT more time. I know there are a couple other companies that worked on these, I talked a couple times with them and shared ideas. My first test jump on it was a Direct-bag slider up from a 182. It sniveled open and flew right off the bat. My words 3 seconds after the slider came down and it was flying stable were "you're fucking kidding me". It's a different animal. But we made it fly. -SPACE-
  19. Calvin19

    rig weight

    Continuing on that tangent, paragliders also have an appreciable amount of inertial mass in the form of air in the cells. This is VERY noticeable when you fly different gliders, especially as some single-surface gliders have hit the market. There are no ram-air cells, so the wing itself loses a couple kg. This may not seem like it matters but controlling the AOA of the glider is extremely important and an experienced pilot who had never flown a SS glider before will be very surprised at how fast the wing surges/dives and responds to brake input. With more than half the mass of the wing gone, it has no inertia. Fun stuff.
  20. Calvin19

    rig weight

    Huh? The OP has one of those questions that can be effectively answered in a single sentence? Science trolling. Hmmm. Ok. Here we go. Standard 747 takeoff. treadmill facing backwards(no factor) (x) pigeons flapping in the Y vector, creating airflow inside the cabin that exerts a force equal to the mass of the pigeons. (no factor, but it will vary over time for the individual accelerations of the pigeons made by their flapping) helium balloons decreasing the inertial mass of the aircraft. Answer:nothing Science answer: It depends on the mass of the helium in the balloons. The inertial mass and weight of the aircraft does not change if the pigeons are flying under their own power inside the cabin. As the aircraft accelerates down the runway and the buoyancy-assisted pigeons start to fly inside the cabin, the aircraft will move forward as the birds, no longer being kept in place on the treadmill, will drift towards the back of the cabin (assuming they are not compensating for their visible environment). The helium balloons will exert a force on the pigeons in the vertical AND forward directions due to the buoyancy of the lifting gas and the new pressure/density gradient lines inside the accelerating aircraft. If the buoyancy force from the balloons is equal to the mass of the bird, it would be neutrally buoyant and would stay in place. A helium balloon that is positively buoyant has to be about 20cm diameter. If you packed the 747 with as many pigeon balloon aircraft that would fit, it would be pretty heavy. But none of them could fly if there was no space left. Even if they could it would not change the problem. Just be sure you tie down the treadmills: https://www.youtube.com/watch?v=uIjO0sKBDDw
  21. Calvin19

    rig weight

    So exactly how much of a lard ass are you? I always kinda wondered what fabric and stitch weight really added to wing loading, because the wing IS the fabric and stitches. I can see lines and risers maybe, but it seems that true wing loading would be weight w/o fabric and stitches. "wing loading" would include the entire aircraft mass, so yes it all is included. If we get really scientific about the physics of any aircraft in flight including a parachute, the total mass of the aircraft(parachute) being accelerated(maneuvering) would be included. This means the air inside the cells of the canopy is included. For stable, unaccelerated flight, buoyancy negates this air but it is still a part of the aircraft's inertial mass. The loading on the airfoil would even change (while maneuvering) if you have a full breath or air in your lungs or have let all the air out of your lungs. Of course we don't care about these things because the mass of the air inside the inflated canopy is probably less than 1% of our exit weight. Think of a 747, empty of all cargo but with fuel tanks full. It has to accelerate down the runway to takeoff, but even though it is empty of all cargo it still has ambient air (air is heavy) in all the voids within the aircraft not occupied by hardware. That is a lot of air. Cabin/cargo area alone is about 1000kg worth of air that has to be accelerated. Including all voids probably another 500kg. The aircraft displaces that volume + the volume of the non-air material structure and fuel, cargo, passengers, etc. All of this must be accelerated down the runway and in any maneuver that aircraft makes.
  22. Calvin19

    rig weight

    That's a big freaking cat. I thought my Dlynx was fat. -SPACE-
  23. I only occasionally watched it when it originally ran. Then when I first subscribed to Netflix in the early 2000's, I watched the entire series from beginning to end. Same. Awesome show. -SPACE-