Question about G-forces

[UMichfly]

I agree with you Fly if it is a loop. I think we're just reading the question differently because I am not seeing a loop in there. I default to you though because you've actually taken the test and seen the actual question.

 

[HAL Pilot]

You had to pass physics to be a Naval Officer. Engage your brain!

I never even took physics. Classes like that hurt my brain so I didn't take them.

 

[Brett327]

I knew this was gonna be fun! You fvcks are all over the map!

Brett

 

[Ajax]

I've done some aerobatics and when doing loops I remembered feeling the most G's when I was pulling up, so I guess the plane that is going strait forward would be feeling the most G's.

 

[T-man]

I think the question posted is a bit ambiguous(sp?) and needs some clarification. The original question posted doesn't mention a loop. My initial reaction before reading the responses would have been to say the virtical climb position because I wasn't accounting for a loop. If you look at each plane position as straight flight, the virtical climb would be > 1G, the inverted straight and level flight would be 1G, and the inverted descent would be < 1G. So many ways to approach the question, I think some clarification is needed.

 

[Ajax]

I remember the one on the test had the plane going in a loop.

 

[vegita1220]

I know this really should be simple, but my head really friggin hurts. Not a good sign I take it...

 

[Brett327]

Don't be jealous because I've been online chatting with babes all afternoon. Did the Prowler even go upside-down?

Still does, as far as I know, although I wouldn't recommend doing it while dirty as the scenario in question suggests. Sometimes, it's hard to keep it from going upside-down.

Brett

 

[TurnandBurn55]

Oh jeez folks... this is just the basic BFM-egg... you pull an airshow-style loop, you're varying the Gs at every point...

You pull the same number of Gs throughout, your loop will look like an egg. Once you come over the top, you'll have God's G (gravity) helping you out and pulling your radius tighter. Ergo, the most Gs "felt" by the NFO ( ) will be at the bottom...

 

[Squid]

Once you come over the top, you'll have God's G (gravity) helping you out and pulling your radius tighter.

you mean in the initial pull up and approaching the top (in the constant G loop) gravity is making your loop radius smaller. After coming to TDC (top dead center) of the loop, gravity is now accelerating you downwards, making the loop open up.

 

[Brett327]

We have a winner!!

Aw, don't spoil it. This could go on for days!

This whole thing has been a classic study in "nuking it." Nice job, poindexters!

Brett

 

[Punk]

this is pretty poorly worded and from how I read it, he's not doing a loop, just 3 different states of flight

which type of G (lateral, longitudinal, or vertical)?

assuming zero acceleration airspeed wise, he's feeling -1 G inverted (hanging in the straps) and every other case would be a 1 G condition

G-force is all about acceleration and nothing else and that's why this question has got me confused

 

[Squid]

well if he's flying with the longitudinal stick centered:

inverted exactly -1G
nose down, something less than +1G (maybe .9 or so)
vertical +1G plus the force accelerating him upwards (if he is indeed gaining altitude and not in a tail slide or maintaining constant altitude)

yeah, the question has been officially nuked.

 

[kmac]

But what if his head was tilted to the side? I mean are we talking about the G's felt by his head, his arms, his torso? What? Is he wearing a current helmet, a headset, or an old WWI leather helmet? Please, provide more clarification!

 

[jg5343]

There is no loop in the question. I remember it, and the answer is the climbing plane. But we have to assume standard day, fixed pitch prop, and equilibrium flight in all cases.