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Need a Part Name for These...(screenshot insdie) (Read 1795 times)

Reply #15 - Apr 25^th, 2003 at 1:11am

Oz Offline
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Hope this helps:

Quote:

After much wind-tunnel testing, it was found that the new McDonnell fighter would encounter severe stability problems at high speeds and would as a result probably be limited to speeds below Mach 2. In order to correct these problems, several important changes had to made. One of these was the application of 23 degrees of anhedral to the all-flying tailplane, which became known as a *stabilator*. This gave the necessary degree of stability but still left the tailplane free of the jet exhaust.

Stabilator Wink

Wink

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Reply #16 - Apr 25^th, 2003 at 5:08am

Whitey Offline
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OK, fair enough...but what does a stabilator do? Roll Eyes

Roll Eyes

Erez: What do the PW engines look like? The F-4K was the only one to use a different engine and it shows when you see it next to other versions. Wink

Wink

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Reply #17 - Apr 25^th, 2003 at 5:21am

Hagar Offline
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Whitey. Read the description. Wink

Wink

Quote:

One of these was the application of 23 degrees of anhedral to the all-flying tailplane, which became known as a *stabilator*.

Stabilator is another name for all-flying tailplane. These work in the pitch axis only, much like elevators. They should be much easier to animate than elevons.

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Reply #18 - Apr 25^th, 2003 at 5:36am

Whitey Offline
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So, they're just basically pitched elevators? Thanks for sorting that out. Wink

Wink

Nic and easy to animate. Wink

Wink

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Reply #19 - Apr 25^th, 2003 at 6:06am

Hagar Offline
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Just make sure you get the axis correct & they move in the right direction. I've seen too many people get it wrong.

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Reply #20 - Apr 25^th, 2003 at 6:22am

Erez Offline
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Whitey, the PW1120 is a sub model of the F-100

you can see it at the link I gave to Hagar before Wink

Wink

I also try to make a good PW1120 engine for my Lavi. I'm still working on it. It's OK until now, and maybe I could send it to you after I'll done. But please take your own try, since I bet you can do a better one than me;)

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Reply #21 - Apr 25^th, 2003 at 6:54am

Erez Offline
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Well I just wrote to the Pratt&Whitney site in request of info and pics on the PW1120. they don't even mentioned it at the F100 engine's page..... weird....

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Reply #22 - Apr 25^th, 2003 at 8:55am

Whitey Offline
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Actually I can't model to save myself. All I've done on the Phantom is rename parts and animate it... Roll Eyes

Roll Eyes

...I don't even know how to make the engine nozzles open wider as more thrust is added... Embarrassed

Embarrassed

...my real speciality is textures.

Anyway, I guess the PW1120 is afterburning? Also, does anyone know how the Phantoms afterburners were controlled? Was it with throttle postion or by a separate switch? Thanks...

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Reply #23 - Apr 25^th, 2003 at 10:47am

Felix/FFDS Offline
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Getting the nozzle petals to expand with thrust is more tedious than it is difficult. First of all, the "nozzles" aren't - they're throttle sticks. Each petal is key-frame animated as a throttle stick, so that at low throttle settings, they don't move, but at afterburner throttle settings, they move.

Where you get the tedious part is in carefully crafting the overlapping petals and getting the coordinated motions "just right". This is where you'll probably spend more time calculating the "math/geometry" of the positions to get them just right rather than visually moving the parts "to fit".

Quote:

Actually I can't model to save myself. All I've done on the Phantom is rename parts and animate it... Roll Eyes

Roll Eyes

...I don't even know how to make the engine nozzles open wider as more thrust is added... Embarrassed

Embarrassed

...my real speciality is textures.

Anyway, I guess the PW1120 is afterburning? Also, does anyone know how the Phantoms afterburners were controlled? Was it with throttle postion or by a separate switch? Thanks...

Felix/FFDS

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Reply #24 - Apr 25^th, 2003 at 3:15pm

Erez Offline
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Quote:

...my real speciality is textures.

No kidding....... I'm also pretty good with textures......
Designing is hard for me, since I'm doing a model from scratch..... but I'm doing my best and I know there are people here I can ask questions and they will answer and help me.... Wink

Wink

Well I guess it gonna take me some "quality time" with that engine.... oh well.......... Sad

Sad

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Reply #25 - Apr 25^th, 2003 at 9:27pm

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I would like to see an RF-4C from the NV air guard if thats possible

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Reply #26 - Apr 29^th, 2003 at 6:56pm

BE58D Offline
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Elevons are a rudder and elevator combined into one... while not much of an expert on military aircraft (ok, no clue)... They should be defined as a Stabilator. It is clearly defined within the screenshot that the aircraft has ailerons.

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Reply #27 - Apr 29^th, 2003 at 9:47pm

Felix/FFDS Offline
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elevons are elevator/ailerons - such as are found in tailless ) delta-winged aircraft... .. and I believe in some of the more modern aircraft (I *think* the Blackjack) the horizontal tailplanes (all-flying/stabilators) also have a differential movement that complements the ailerons...

ruddervators are the rudder/elevator comination, as are found on V-tailed aircraft (Beechcraft Bonanzas, for example)

Quote:

Elevons are a rudder and elevator combined into one... while not much of an expert on military aircraft (ok, no clue)... They should be defined as a Stabilator. It is clearly defined within the screenshot that the aircraft has ailerons.

Felix/FFDS

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Reply #28 - Apr 30^th, 2003 at 2:47am

Hagar Offline
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I confirmed this point yesterday by asking a friend closely involved with the F-4 & warbirds in general. He confirmed that no version of the F-4 Phantom is fitted with elevons (combined elevator/ailerons). It has a conventional "all-flying" or "all-moving" tailplane, sometimes referred to as a stabilator (horizontal stabilizer/elevator), commonly used on jet airliners.

All versions of the F-4 use a system of ailerons + spoilers for lateral (roll) control. The ailerons have no upward movement & operate between neutral & down. Both ailerons droop when the aircraft is parked. The ailerons were also used as flaperons on the F-4J to improve landing characteristics for carrier ops. "The F-4J introduced 16.5-degree drooped ailerons, which is a fancy way of saying that with gear and flaps down, a downward deflection of 16.5 degrees became the "neutral" aileron deflection."

I think this will be an interesting animation exercise. Wink

Wink

« Last Edit: Apr 30^th, 2003 at 6:03am by Hagar »

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Reply #29 - Apr 30^th, 2003 at 8:42am

Erez Offline
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Now that we know all that, do you have any idea when it will be released? I mean, the only hard thing that is left to be done is texture mapping and files

Do you need any help? should I find you something?

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