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#71
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New Glider Dream Elon Musk Flow
On Friday, February 9, 2018 at 11:31:46 AM UTC-7, Jonathan St. Cloud wrote:
Was so tried of the hard deck discussion thought I would try a discussion of dreams. After seeing the vision of Elon Musk with his Falcon Heavy, I had to pinch myself. Those two boosters landing in sync.. What are some of the innovative, new technology, original thought, scifi dreams, would you like to see in a brand new glider design? Let your inter Elon Musk flow. We have seen the New Ventus, the JS-3 (very innovative), Dianna 3. So far the South Africans have shown the most original thought. If you were to design a glider what are your dreams? 18/21 or 15/18 meters Sustainer, jet, electric, two stroke? Light weight: I would love to be able to get to 7.5 pounds with a 220 lb pilot+chute and up to 12ish pounds wet. This might take new manufacturing methods and materials. Perhaps pre-preg, vacuum bagging...? Pedestal mounted wing? I would like to see instrumentation that could be like radar that would give a graphic representation on the flight computer screen that shows lift and sink, possibly in color represented in color scales between green and red.. Either that, or a HUD/holographic projection on the canopy to give a visual depiction of the movement of the surrounding air (lift, sink, wind direction). |
#72
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New Glider Dream Elon Musk Flow
To me, most "pilot damage" is either feet (cockpit eggshells) or vertical loads that damage/break the spine.....assuming not a major hit.
Taken from someone that has "broken their back, twice", but not in a sailplane. Only looking at accidents I have read or been an early party to recovery. To me, airbags (unless maybe under the pilot) are a ton of cost with little to no benefit, just my opinion...... "If airbags were so great, why don't ANY auto motorsports require them?". Because, a good set of well anchored belts will be about the best bet. Aircraft crashes tend to have a vertical motion, belts don't help there. Crush structure does.......most wouldn't put an airbag under your back/butt where most damage is done. Cockpit structure for your feet/lower legs HAS been done. Ask Andy Gough.......I helped first responders during his incident many years ago in PA. Glad to see him return to contests. |
#73
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New Glider Dream Elon Musk Flow
On Wed, 14 Feb 2018 11:06:11 -0800, ND wrote:
speaking of cars... this is a little nuts, but, airbags? i've always thought that during a crash, you probably smack the **** out of your head. Airbags shouldn't be necessary provided that your straps are tight and the anchor points don't pop off the hull, though your chin may hit your chest quite hard. The stick is be short enough that your head won't hit it and the shoulder + lap straps will stop your head hitting the panel That said, I've been shown photos of lap-strap anchor point failures during a BGA safety talk. Some of the older gliders used steel rod with four bends to form a joggle for the lap-strap to go through. These were attached to the hull with patches of glasscloth glued on over the straight bits at each end of the rod. Stop suddenly enough with a heavy pilot on board and the patches tear or pull off the hull, but IIRC that usually causes the pilot to submarine under the panel rather than hitting his head on it. -- Martin | martin at Gregorie | gregorie dot org |
#74
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New Glider Dream Elon Musk Flow
On Friday, February 9, 2018 at 1:31:46 PM UTC-5, Jonathan St. Cloud wrote:
Was so tried of the hard deck discussion thought I would try a discussion of dreams. After seeing the vision of Elon Musk with his Falcon Heavy, I had to pinch myself. Those two boosters landing in sync.. What are some of the innovative, new technology, original thought, scifi dreams, would you like to see in a brand new glider design? Let your inter Elon Musk flow. We have seen the New Ventus, the JS-3 (very innovative), Dianna 3. So far the South Africans have shown the most original thought. If you were to design a glider what are your dreams? 18/21 or 15/18 meters Sustainer, jet, electric, two stroke? Light weight: I would love to be able to get to 7.5 pounds with a 220 lb pilot+chute and up to 12ish pounds wet. This might take new manufacturing methods and materials. Perhaps pre-preg, vacuum bagging...? Pedestal mounted wing? How about a standardized and reliable BlueTooth communication protocol between the electronic gizmos we have on our panels today? Eliminate all these data cables and only run power to them from a bus bar. Uli 'AS' |
#75
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New Glider Dream Elon Musk Flow
On Wednesday, February 14, 2018 at 2:01:41 PM UTC-6, Kiwi User wrote:
On Wed, 14 Feb 2018 11:06:11 -0800, ND wrote: speaking of cars... this is a little nuts, but, airbags? i've always thought that during a crash, you probably smack the **** out of your head. Airbags shouldn't be necessary provided that your straps are tight and the anchor points don't pop off the hull, though your chin may hit your chest quite hard. The stick is be short enough that your head won't hit it and the shoulder + lap straps will stop your head hitting the panel -- Martin | martin at Gregorie | gregorie dot org That's assuming a straight ahead impact. A friend was killed when his glider impacted in a yawed orientating (spin). The side of his head hit the canopy rail hard enough to kill him. It would have taken side airbags to have protected him, or a helmet. |
#76
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New Glider Dream Elon Musk Flow
On Wednesday, February 14, 2018 at 6:19:48 PM UTC-5, WB wrote:
On Wednesday, February 14, 2018 at 2:01:41 PM UTC-6, Kiwi User wrote: On Wed, 14 Feb 2018 11:06:11 -0800, ND wrote: speaking of cars... this is a little nuts, but, airbags? i've always thought that during a crash, you probably smack the **** out of your head. Airbags shouldn't be necessary provided that your straps are tight and the anchor points don't pop off the hull, though your chin may hit your chest quite hard. The stick is be short enough that your head won't hit it and the shoulder + lap straps will stop your head hitting the panel -- Martin | martin at Gregorie | gregorie dot org That's assuming a straight ahead impact. A friend was killed when his glider impacted in a yawed orientating (spin). The side of his head hit the canopy rail hard enough to kill him. It would have taken side airbags to have protected him, or a helmet. side airbags is basically what i was thinking, to protect your head during a yawing or side impact. like if you were going into a ridge, caught a wingtip first, and impacted sideways. |
#77
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New Glider Dream Elon Musk Flow
On Thu, 15 Feb 2018 05:36:39 -0800, ND wrote:
On Wednesday, February 14, 2018 at 6:19:48 PM UTC-5, WB wrote: On Wednesday, February 14, 2018 at 2:01:41 PM UTC-6, Kiwi User wrote: On Wed, 14 Feb 2018 11:06:11 -0800, ND wrote: speaking of cars... this is a little nuts, but, airbags? i've always thought that during a crash, you probably smack the **** out of your head. Airbags shouldn't be necessary provided that your straps are tight and the anchor points don't pop off the hull, though your chin may hit your chest quite hard. The stick is be short enough that your head won't hit it and the shoulder + lap straps will stop your head hitting the panel -- Martin | martin at Gregorie | gregorie dot org That's assuming a straight ahead impact. A friend was killed when his glider impacted in a yawed orientating (spin). The side of his head hit the canopy rail hard enough to kill him. It would have taken side airbags to have protected him, or a helmet. side airbags is basically what i was thinking, to protect your head during a yawing or side impact. like if you were going into a ridge, caught a wingtip first, and impacted sideways. I'd have thought that the tip would catch, causing the glider to pivot round it through almost 90 degrees, putting the fuselage into the ridge nose-first. Have I got that wrong? -- Martin | martin at Gregorie | gregorie dot org |
#78
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New Glider Dream Elon Musk Flow
I mean if we are going to dream,
- Deployable drone cloud that helps find and center lift. Fun in gaggles! - A minimum speed of say 20 knots for landing and climb - Expert system flight computers that anticipate pilot need based on the phase of flight, making real-time display and sensor adjustments and offering guidance. - Fly by wire controls that integrate loading and maneuvering inputs with flap movements - Cloud recognition software that does shape analysis using time lapse - Smart system learning vario that learns the pneumatic inputs of the particular glider it is installed and the day factors in real time so it gets smarter the more you fly, even with a day factor. - OK not glider but rigging integrated into trailer design - Something that will mask the height from the Hard Deck analysis software. |
#79
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New Glider Dream Elon Musk Flow
On Monday, February 12, 2018 at 3:37:12 PM UTC-5, J. Nieuwenhuize wrote:
... *Reduced battery pack for the FES. Replace that with a 5 HP 4-stroke generator and you loose all drawbacks of FES. - Excellent idea. Use the high-energy-density of gasoline to store energy for the rarely-used operation of a lengthy sustain. Save weight and cost. |
#80
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New Glider Dream Elon Musk Flow
On Thursday, February 15, 2018 at 3:18:37 PM UTC-5, Kiwi User wrote:
On Thu, 15 Feb 2018 05:36:39 -0800, ND wrote: On Wednesday, February 14, 2018 at 6:19:48 PM UTC-5, WB wrote: On Wednesday, February 14, 2018 at 2:01:41 PM UTC-6, Kiwi User wrote: On Wed, 14 Feb 2018 11:06:11 -0800, ND wrote: speaking of cars... this is a little nuts, but, airbags? i've always thought that during a crash, you probably smack the **** out of your head. Airbags shouldn't be necessary provided that your straps are tight and the anchor points don't pop off the hull, though your chin may hit your chest quite hard. The stick is be short enough that your head won't hit it and the shoulder + lap straps will stop your head hitting the panel -- Martin | martin at Gregorie | gregorie dot org That's assuming a straight ahead impact. A friend was killed when his glider impacted in a yawed orientating (spin). The side of his head hit the canopy rail hard enough to kill him. It would have taken side airbags to have protected him, or a helmet. side airbags is basically what i was thinking, to protect your head during a yawing or side impact. like if you were going into a ridge, caught a wingtip first, and impacted sideways. I'd have thought that the tip would catch, causing the glider to pivot round it through almost 90 degrees, putting the fuselage into the ridge nose-first. Have I got that wrong? -- Martin | martin at Gregorie | gregorie dot org yeah, it's not going to pivot on the wingtip and hit nose first. it IS going to pivot. but would probably pivot, stall, and begin to fall all while travelling sideways. the nose may be the first to touch the ground but i think the major force of the impact would be in a sideways direction, relative to the pilot. i think you'll agree that it wouldn't be a horrible thing to have airbags deploy around the pilots head in this situation (i realize its not him catching a wingtip) : https://www.youtube.com/watch?v=4nsXL72S9OA |
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