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Give a number when you talk about aspect ratio. My epsilon 9 is in the three area of aspect ratio for projected aspect ratio and in the five area for aspect ratio.
@@flybubbleparagliding I love you guys very much and I appreciate all the mathematical information that you can get out with actual hard numbers. I spent 7 years in engineering college. I volunteered at the roadside safety facility and analyzed crashes and designed barricades. I'm learning to fly and I'm not squeamish at all. I've been looking at the equations I build and I have noticed there's a very strange error in most people's thinking. Generally people think of flying in a straight line and still air. Generally when people are thinking about the performance of a wing with different weights, and they think it behaves the same in a curve as it does in straight line. When we turn with weight on a paraglider, the nonlinear extremely steep trig function and the steep square function with velocity add up to an extremely fast steep spiral dive. In powered aircraft this is the stall spin in hard sequence. There are two minimums you must be above when you are flying the wing. One is the minimum radius, and second is the minimum velocity. Both of these numbers rise steeply with weight. I'm trying to lose weight to go back to the school and do more ground handling and begin to fly so that I'm not so far up in the weight range and my minimum radius before locking in the spiral dive, and my minimum velocity before stall in turn will be lower. If you draw a graph with two axes and you draw a line. If you can stay in the feasible zone above the minimum velocity and curvature above the minimum radius control authority. When you are in the unfeasible zone and you don't have your minimum radius standard and you don't have your minimum velocity standards met you were falling towards the ground. This is your parachutaul stall with curvature. I hope I can tie my understanding in with better understanding of the aspect ratio. Around parachute has an aspect ratio of 1 and doesn't do much for a fellow but it swings you back and forth and if you can get stable at let you down Fair enough.
Looks very cool at about 50ft off the ground any more and I saw this story about a lady that got sucked into a thunderstorm cloud up 36 k feet and miraculously lived. Her friend, nvr found him just gone I guess.
i have a question which bothers me for the longest time. is PPG and not paragliding but maybe you can answer nevertheless? people say ENB or higher are the most efficient but getting especially low sink rate for PPG if the size is super tiny. lets say a Viper XC 16 meter. i cannot wrap my head around this. my main question is which wing would have the best sink rate while ignoring the speed. dont care if it goes only 15km/h. what kind wing i fly where i use the LEAST amount of throttle possible to maintain leveled flight?
In brief, a paraglider that works well under power, has an excellent sink rate and still flies well even lighter-loaded. Not a wing with a reflex profile, or that you're heavily loaded on.
@@flybubblecarlo thanks so much for the answer! i am on the super heavy side with 130kg body weight. all up with my PPG i am around 170ish kg ready to take off. would it be a good idea to choose a tandem wing for the absolute lowest power used for leveled flight? or does speed not matter? i dont care about acro. i love to fly slow and looking for a wing which can get me leveled flight at the lowest possible thrust. using a spyder3 right now max size which already made a difference from my APCO karisma wet towel. but i would love to hear another suggestion. any brand is fine and i would also not be shy to order one directly from you guys.
Dearest friend I love you for posting this question and I hope you answer me maybe somebody else will jump in on this because I'm only learning to fly but I'm using a lot of equations to try and understand the nature of the wing. When you have any wing and it is flying straight you can put extra weight on it and it doesn't affect the glide ratio very much but it affects the glide ratio when you're flying in a curve, a great deal because. There are two trigonometry relationships going against you and you are squaring the velocity when you calculate Bank angle. You have a two line graph x and y. There is a minimum speed x and a minimum radius of curvature y. On one side of the line where you were above both minimums you have enough control authority to climb out of the hole you step in when you turn any of these wings. In regular aviation they have a thing called flying on your prop. You have so much motor if you get below a normal minimum speed you can gun the motor and hang on the propeller. In these small fast wings that are probably overloaded you have to launch in a fairly brisk headwind to get the foot speed. Then you are hanging on the prop, just a little bit because you have such a mathematical hole you dive into when we turn you can neutralize that with the throttle. I saw a powered parachute that hit the ground the crash analysis said he was 100 lb overweight. Leaving the ground in an aircraft this overloaded is cause enough alone for a terrible crash. I have seen motors that were rated at 100 lb of thrust. That's a massive amount of overweight to try and fly a wing with a dead motor. It would have flown quickly in a straight line, but at a reasonable glide angle. He lost his motor and tried to turn to short radius for the velocity he was moving. I'm trying to lose weight because I'm flying the epsilon 9 biggest one they make and I am at the top of the weight range. I went on a tandem flight and I tipped the pilot $20 to give me a ride from hell. He did eight loops some of it was an asymmetrical spiral without his wisdom and knowledge we could have been gift-wrapped. I think he flew like an eagle carrying a bowling ball. If I ever hear that sound that the strings make when you begin to turn and get into a spiral dive I'm going to do something right away I'm not sure what. We were on that tandem and this man had the skills that paid the bills and he used our energy properly as we ease our way out of the sky coming back to The landing field and then he did all the acrobatics and gave me a ride I'll never forget. I was estimating 6 g's from the basic feeling I was getting in the site I could see. He said we were going 58 miles an hour. Then he did the s turn to land and and I was sitting on the ground in my ride was over. It dawned on me that it was going to be pretty hard to see in my head the flight path I need to make all those s turns and land at the right place. I told my instructor that I was the stupidest laziest most worthless student he could ever have and I needed to land over there in that big flat place where there isn't anybody parked and there isn't anybody else around and I'll just walk back whatever happens. I'm not going to be swinging hitting the ground trying to miss something. He thought that would be an okay idea