Aces High Bulletin Board

General Forums => Aces High General Discussion => Topic started by: Obear1971 on June 24, 2002, 07:13:43 AM

Title: Monday morning puzzle, what is wrong with this picture
Post by: Obear1971 on June 24, 2002, 07:13:43 AM
Look at the picture below, loverly isnt she :) but look at the lower wing...

it is greatly reduced in preportion to the upper wing.

Forshorterning should actually apllie this the opposite way, the top wing (being further away and going off into the distance) should look shorter and the bottom wing (being closer and comming towards the screen) should be larger.

This picture dont look right at all to me, my verdict, its be docterd to fit the image size.

What you make of it?


(http://rf-hp.npi.msu.su/~vasya/RC/Pictures/p38-1.jpg)
Title: Monday morning puzzle, what is wrong with this picture
Post by: fats on June 24, 2002, 07:26:50 AM
The wings are at an angle, sort of like very wide V when viewed from front.

Looks funny though.


// fats
Title: Monday morning puzzle, what is wrong with this picture
Post by: Ghosth on June 24, 2002, 08:40:25 AM
Its called dihedral

Wings come together at a shallow angle.

Used to improve stability in low & mid wing planes the most. High wing planes don't need it.

You can even see it in the picture you provided.
Look at the aft edge of the wing where it meets in the center. Its one angle below the centerline and another above it.
Title: Monday morning puzzle, what is wrong with this picture
Post by: tshred on June 24, 2002, 08:42:09 AM
Shoot, I was thinking it was the 1.10 hasn't been released yet, that's what's really wrong 'with the picture'!

ts
Title: Monday morning puzzle, what is wrong with this picture
Post by: Ghosth on June 24, 2002, 08:47:40 AM
This is not the best but its only example I could find in a hurry.
Title: Monday morning puzzle, what is wrong with this picture
Post by: Superfly on June 24, 2002, 08:48:06 AM
It's called 'perspective'. ;)
Title: Monday morning puzzle, what is wrong with this picture
Post by: Hristo on June 24, 2002, 08:53:09 AM
strange choice of photo lense
Title: Monday morning puzzle, what is wrong with this picture
Post by: AKSWulfe on June 24, 2002, 09:23:51 AM
Looks like he's in a turn... maybe 2-3-4Gs... this would cause the wings to bend outward from the middle in a turn, thus making the wings look even moreso out of proportion.
-SW
Title: Monday morning puzzle, what is wrong with this picture
Post by: Mr Hanky on June 24, 2002, 11:04:52 AM
Make a V with your fingers and look at the effect for yourself.  From above the V, the closest wing to the camera will always look smaller.  From below the V, the closest wing to the camera will always look bigger.
Title: Monday morning puzzle, what is wrong with this picture
Post by: Obear1971 on June 24, 2002, 11:22:21 AM
yeh never thought that the angle of the wings (pointing the wing tips up) would cause the angle of perspective to be more servear on the bottom wing.

still looks weird though
Title: Monday morning puzzle, what is wrong with this picture
Post by: AKSWulfe on June 24, 2002, 11:55:14 AM
It looks wierd because of what I said... the perspective off at that angle wouldn't account for the wings being that bent.
-SW
Title: Monday morning puzzle, what is wrong with this picture
Post by: senna on June 24, 2002, 02:21:32 PM
Left wing (on top) is too long and right wing (bottom) is too short. Since the bank is about 45 degrees both wings should be bout same size but opposite adjacent to each other in direction and perspective.

Ok, winding down my propeller on head now. Wiiiiuuuoooozz zzz.

Title: Monday morning puzzle, what is wrong with this picture
Post by: Duckwing6 on June 24, 2002, 02:53:31 PM
Ghost where do you get from that high wing airplanes don't need (a positive) dihedral angel ?

(http://www.pink.at/bilder/fde360.jpg)
Title: Monday morning puzzle, what is wrong with this picture
Post by: Mr Hanky on June 24, 2002, 03:00:31 PM
Quote
Originally posted by Duckwing6
Ghost where do you get from that high wing airplanes don't need (a positive) dihedral angel ?

(http://www.pink.at/bilder/fde360.jpg)
Your plane uses too much lipstick.
Title: Monday morning puzzle, what is wrong with this picture
Post by: Pongo on June 24, 2002, 03:04:31 PM
So in a medium to hi G turn the P38 pilot would have an even worse view over the wings? Never thought that was posible...Does AH model this?
Title: Monday morning puzzle, what is wrong with this picture
Post by: Duckwing6 on June 24, 2002, 03:39:58 PM
Besides wings that short flex... yea for about 1 inch or so ...

a long airliner wing will flex for a few feet but a P38s wing you won't see any of this
Title: Monday morning puzzle, what is wrong with this picture
Post by: Widewing on June 24, 2002, 03:49:38 PM
I just picked up the 1/48th scale P-38 sitting on my desk, rotating it to the same bank angle. Looks just like the photo. Superfly said it best, "it's called perspective". If the wings have 10 degrees of dihedral,and the plane is banked 35 degrees, one wing will be 45 degrees to your view, the other 25 degrees. One will appear shorter than the other.

My regards,

Widewing
Title: Monday morning puzzle, what is wrong with this picture
Post by: Corwin on June 24, 2002, 05:28:13 PM
It's a communist plot to overthrow the youth of America!  Or perhaps it's............the Spanish Inquisition!
Title: Monday morning puzzle, what is wrong with this picture
Post by: cajun on June 24, 2002, 06:06:09 PM
Yeah it does look a little funny,  but not only the wings look at the left engine/fusealage, looks kinda like its bent up, and prop isnt moving so its not really in flight.
Title: Monday morning puzzle, what is wrong with this picture
Post by: AKWarp on June 24, 2002, 11:57:24 PM
The prop ain't movin in the picture because someone forgot to hit the play button........



Seriously...high shutter speeds will "freeze" moving objects...ala the propellor in question.  If you look though, you will see the left prop is a bit fuzzy looking because it is in fact moving and covered that short distance in the time the shutter was open for the picture.

Nothing looks bent to me.  It just looks like the tops of the booms are flat and straight and the undersides have a curvature to them.