If this is your first visit, be sure to check out the FAQ by clicking the link above. You may have to register before you can post: click the register link above to proceed. To start viewing messages, select the forum that you want to visit from the selection below. |
|
|
Thread Tools | Display Modes |
#11
|
|||
|
|||
Here's a question for the trolls and flight simmers
I'm sorry, I didn't see this post until now. One of the
fondest memories of my first solo was seeing my own shadow below. I guess my attention was elsewhere while I had the CFI in the cockpit with me. Lou |
#12
|
|||
|
|||
Here's a question for the trolls and flight simmers
Lou wrote:
I'm sorry, I didn't see this post until now. One of the fondest memories of my first solo was seeing my own shadow below. My strongest memories were how the plane LEPT off the surface with 200 less pounds and more rearward GC, and remembering on downwind that I HAD to land the plane with no reminders or comments from the CFI. My PP CFI was a "master of distraction" type of chatty guy. He would continually yak on about things that had nothing to do with flying. I also noticed how peaceful solo flight was! G |
#13
|
|||
|
|||
Here's a question for the trolls and flight simmers
My PP CFI was a "master of distraction" type of chatty guy. He would continually yak on about things that had nothing to do with flying. I also noticed how peaceful solo flight was! G That's funny, while reading this I was thinking the same thing. My CFI kept talking about things he did over the weekend, what did I do etc. I guess it worked. Lou |
#14
|
|||
|
|||
Here's a question for the trolls and flight simmers
Lou wrote:
My PP CFI was a "master of distraction" type of chatty guy. He would continually yak on about things that had nothing to do with flying. I also noticed how peaceful solo flight was! G That's funny, while reading this I was thinking the same thing. My CFI kept talking about things he did over the weekend, what did I do etc. I guess it worked. It did! All the same stuff non-flying pax talk about that can easily draw you in and away from flying. The quiet on the first solo, without him yakkin' away, was soooooooooooo noticeable! G |
#15
|
|||
|
|||
Here's a question for the trolls and flight simmers
In article ,
Stealth Pilot wrote: at 4,500ft (the original question) the aircraft has no shadow at all but at the sub solar point (were you'd think the shadow should be) there is a distinct bright area tracking along under the aircraft. for thirty years this quietly puzzled me. it is a fact that aircraft at altitude have no shadow. below them tracking along the ground is a bright spot of light. the reference I gave gives details of some original work by Fresnel which proposed that light passing beside a gravitational mass should be bent slightly by the mass and behind the body there should be a bright spot. this seems to me to be the explanation for the absense of the shadow. the mass of the aircraft acts as a gravitational lens and this causes the bright spot. Poisson spot, Spot of Arago, Keller edge waves. Very much doubt gravitational bending of light is involved. |
#16
|
|||
|
|||
Here's a question for the trolls and flight simmers
Stealth Pilot writes:
the reference I gave gives details of some original work by Fresnel which proposed that light passing beside a gravitational mass should be bent slightly by the mass and behind the body there should be a bright spot. this seems to me to be the explanation for the absense of the shadow. the mass of the aircraft acts as a gravitational lens and this causes the bright spot. It's much simpler than that. The shadow is so blurry at altitude that you cannot see it, but it is still there, and it is almost exactly the same size that it would be on the ground. Gravitational lensing is not significant for an object with the mass of an airplane (but it works for the sun, which is considerably larger). The bright spot comes from direct reflection of the sun behind you. And pilots are not the only people who see these phenomena. Anyone riding in a plane can see them, pilot or not. Indeed, the plane isn't necessary either, as they can be seen from hilltops, mountaintops, and even from the roof of a tall building. the reason I asked the question was to point out that simulators work on a simplified model of the reality that real pilots are exposed to. people like mxsmanic seem utterly oblivious to the fact that their exposure to the simulator will never give them competent knowledge because all they are exposed to is a simplified model of reality. it is only exposure to the actual reality that will allow you to achieve competent knowledge. Simulators simulate what is important; they don't simulate what isn't. Simulating a few rare optical phenomena is so unimportant that it would be a waste of code to simulate it. if simulators dont get something as simple as the aircraft's shadow right can you trust that anything else they show you is right? Yes. Microsoft Flight Simulator actually has better visuals than some multimillion-dollar simulators. Does that mean that the latter are "bad" simulators? No. It just means that these latter simulators emphasize other aspects of the simulation; the relatively primitive visuals are there because the simulator is not normally used for VFR simulation, and photorealistic visuals are very expensive. You can bet that these expensive full-motion simulators don't normally simulate heiligenschein, glories, rainbows, or other minor phenomena, either. |
#17
|
|||
|
|||
Here's a question for the trolls and flight simmers
Mxsmanic wrote in
: Stealth Pilot writes: the reference I gave gives details of some original work by Fresnel which proposed that light passing beside a gravitational mass should be bent slightly by the mass and behind the body there should be a bright spot. this seems to me to be the explanation for the absense of the shadow. the mass of the aircraft acts as a gravitational lens and this causes the bright spot. It's much simpler than that. The shadow is so blurry at altitude that you cannot see it, but it is still there, and it is almost exactly the same size that it would be on the ground. Gravitational lensing is not significant for an object with the mass of an airplane (but it works for the sun, which is considerably larger). The bright spot comes from direct reflection of the sun behind you. And pilots are not the only people who see these phenomena. Anyone riding in a plane can see them, pilot or not. Indeed, the plane isn't necessary either, as they can be seen from hilltops, mountaintops, and even from the roof of a tall building. the reason I asked the question was to point out that simulators work on a simplified model of the reality that real pilots are exposed to. people like mxsmanic seem utterly oblivious to the fact that their exposure to the simulator will never give them competent knowledge because all they are exposed to is a simplified model of reality. it is only exposure to the actual reality that will allow you to achieve competent knowledge. Simulators simulate what is important; they don't simulate what isn't. Simulating a few rare optical phenomena is so unimportant that it would be a waste of code to simulate it. if simulators dont get something as simple as the aircraft's shadow right can you trust that anything else they show you is right? Yes. Microsoft Flight Simulator actually has better visuals than some multimillion-dollar simulators. Does that mean that the latter are "bad" simulators? No. It just means that these latter simulators emphasize other aspects of the simulation; the relatively primitive visuals are there because the simulator is not normally used for VFR simulation, and photorealistic visuals are very expensive. You can bet that these expensive full-motion simulators don't normally simulate heiligenschein, glories, rainbows, or other minor phenomena, either. you're an idiot. Bertie |
#18
|
|||
|
|||
Here's a question for the trolls and flight simmers
Stealth Pilot wrote:
it is a fact that aircraft at altitude have no shadow. Rather, that it does have a shadow, but which is so diffuse that it is below the JND of your eyeballs. below them tracking along the ground is a bright spot of light. A side effect of the lift fairies, perhaps? :P TheSmokingGnu |
#19
|
|||
|
|||
Here's a question for the trolls and flight simmers
On Jun 29, 6:09 am, Stealth Pilot
wrote: .... the reason I asked the question was to point out that simulators work on a simplified model of the reality that real pilots are exposed to. people like mxsmanic seem utterly oblivious to the fact that their exposure to the simulator will never give them competent knowledge because all they are exposed to is a simplified model of reality. it is only exposure to the actual reality that will allow you to achieve competent knowledge. Yesterday, wife and I sim'd the Luna 3 mission to photograph the far side of the moon that the Ruskies did in 1959. We used trial and error but finally got it. Those poor SOB's used vacuum tubes and slide rules to "sim" the ballistics. if simulators dont get something as simple as the aircraft's shadow right can you trust that anything else they show you is right? I'd love to put Stealth Pilot on the top of a ballistic missile with a joy stick, and then have him execute the simple manuever of a lunar orbital return mission to earth. I'd be wearing a hard hat :-). Ken |
#20
|
|||
|
|||
Here's a question for the trolls and flight simmers
|
Thread Tools | |
Display Modes | |
|
|
Similar Threads | ||||
Thread | Thread Starter | Forum | Replies | Last Post |
Pilot's Assistant Directory - Free Information Resource for Flight Simmers - Updated | AirToob | Simulators | 0 | July 19th 07 11:10 AM |
(OT) MS Simmers | Dan544 | Piloting | 66 | May 7th 07 10:04 PM |
Slightly O/T for flight simmers. Building my own airport | Andrew Scotland | Simulators | 4 | July 24th 05 10:13 PM |
Check This Out!!! (must have for all flight simmers) | Boeing747 | Simulators | 1 | July 3rd 04 12:43 AM |
Calling Simmers in the Midlands, UK | 'Mort' | Simulators | 0 | March 24th 04 08:16 PM |