Ship Dynamics - Pitch and Roll?

[Ghostrider]

Damn you Collin!

Now I'm going to have to redo all of my Hailstone missions with your ships! (With your permission, of course) Shows what I know. I didn't even know about them until I saw SW's video. My jaw hit the floor. Your ships are stunning!

GR

 

[Collin]

Lso

All the above will work but I just luv shooting the ***:amen:

Go for it Ghostrider.

regards Collin:ernae:

 

[Shadow Wolf 07]

Now I'm going to have to redo all of my Hailstone missions with your ships! (With your permission, of course) Shows what I know. I didn't even know about them until I saw SW's video. My jaw hit the floor. Your ships are stunning!

GR

They are indeed! But watch what you use in the target area. I substituted Usio's ships for Stock in my "Leyte Gulf" mission and the 4 Usio carriers, 2 battleships and a handfull of cruisers and destroyers (framerate hogs all) turned my mission into a slide show whenever 3 or more ships are in the field of view.

Some stills of Collin's carriers:

 

[Blue Devil]

A question for the crew...

...Did WWII Essex class CV's (and jeeps for that matter) have lighted (marker) flight decks? ...or just illuminated from exterior lighting?

 

[Jagdflieger]

I don't know BD. I do know that during the Battle of the Philippine Sea (Marianas Turkey Shoot), Admiral Mitscher had all his TF 58 ships turn on their lights and shine their search lights straight up to beacon the returning strike force back to the fleet. This was after their last attack on Admiral Ozawa's fleet late in the day on the 20th of June 1944.

 

[bearcat241]

Lighted deck markers were always the standard for night ops, as today, even in blackout conditions. A pilot can't trap a carrier in pitch black at all, unless they have modern night vision equipment. Because of the way they're installed, lighted deck markers can't be seen from the distant sea-level angle of a sub's periscope. Deck flood lighting (red or white conditions) is a separate matter and is used under non-blackout conditions. The searchlight espisode was a combination of redirected carrier deck floodlighting and escort ships also beaming their's skyward.

 

[Collin]

Deck lights

Hi BD, as Bearcat states, deck lighting was quite common but not used greatly.

The modelled Essex class are accurate as I have a plan of their positions, colours, and shape.

It was RN practise to station a cruiser off the port quarter of carrier while night landings where happening. With a bright white light on her main mast, the incoming aircraft knew when to turn onto the landing flight path, as the plane turned the cruiser would let the carrier know and the lights would be turned on.
Later in the war this cruiser would be slightly repositioned so that FAA Corsair pilots could judge their turn onto finals.

regards Collin:ernae:

 

[Helldiver]

Shadow Wolf - I looked at your video just now and you got it almost correct. However, the rolling moment was a bit slower than what you show. These were large ships and it took alot to make them roll. I'd give it another second or two. The amount of roll was right it just took longer to cycle.
I would give it a lot more pitch. I mean your looking at nothing but water when the nose is down. So much so, that if the signal officer's timing isn't right he can catapult someone into the sea. I saw it happen to a Lt. Fish. How can I remember something as remote as that after 63 years when I can't remember my telephone number?

 

[Ghostrider]

You guys have been holding out on me! I've spent most of the day playing - I mean, working on Hailstone missions - with Collin's ships! They put my old SHA_Essex deck repaints to shame! I must say, things are coming together quite well, I think - and between Jean Bomber's scenery, Collin, Usio, and the Virtual Navy's ships, Wolfi's SB2C, and Lyndsay Watt's stuff, things are looking GOOD!

Jean Bomber's scenery is, in fact so detailed, that it is entirely workable to navigate with a kneeboard chart of Truk that each pilot was given in the raid, (and is incluido in the campaign ) And yes, you'll be glad for those deck lights when you're trying to trap in your TBF after the first ever radar-assisted night torpedo attack by VT-10!

GR

 

[Collin]

Please be aware....

While the VN, Usio san, and myself build ships to accurate measurements and scale 1/1, for some reason the sim represents aircraft at a scale of about .8/1.. Not sure why, but it is noticeable if you have a deck park and try to emulate a carrier photo.

regards Collin:ernae:

 

[Shadow Wolf 07]

As mentioned before, Usio uses some extreme numbers on his ships. Someone commented that the game won't read 2 digit dynamics figures.

For example, Usio's JMK_Kaga and JMK_CV2_Lexington both use:

;[Dynamics]
; r“VŽž
;pitch_wave_moment_scale = 22
;bank_wave_moment_scale = 40
;pitch_damp_moment_scale = 10
;bank_damp_moment_scale = 16

What is he trying to accomplish here? should I just chop off the last digit and make them 2,4,1.1 ?

 

[JapLance]

As mentioned before, Usio uses some extreme numbers on his ships. Someone commented that the game won't read 2 digit dynamics figures.

For example, Usio's JMK_Kaga and JMK_CV2_Lexington both use:

;[Dynamics]
; �r“VŽž
;pitch_wave_moment_scale = 22
;bank_wave_moment_scale = 40
;pitch_damp_moment_scale = 10
;bank_damp_moment_scale = 16

What is he trying to accomplish here? should I just chop off the last digit and make them 2,4,1.1 ?

My guess: these are just left overs from testing, note the ; before those lines, which invalidate them.

 

[Shadow Wolf 07]

Okay, that's good to know. I just tried the same mission with the CVE_Sicily set at -2,4,1,1. The motion was good but not violent and didn't bounce me around the deck. Sorry, no video - FRAPS won't work on this computer. If you all need one I can do one tomorrow afternoon when I get back from my DAV Chapter. :typing:

Thanks for all your advice and suggestions. :ernae:

 

[Shadow Wolf 07]

I filmed the second test with the carriers set at -2, 4, 1, 1 and the escorts still as -3, 6, 1, 1. You can see for yourselves the results:

http://s81.photobucket.com/albums/j220/Pechora07/?action=view&current=CarrierPitchnRoll-2411.flv

 

[Shadow Wolf 07]

Here's a video with Collin's Long Hull Essex at:

[Dynamics]
pitch_wave_moment_scale = -2
bank_wave_moment_scale = 4
pitch_damp_moment_scale = 1
bank_damp_moment_scale = 1

I took views from the plane - watch horizon in relation to the leading edge of the flight deck,

External views of a sister ship with the same settings1 1/2 mile to starboard, and an escorting cruiser with settings at:

[Dynamics]
pitch_wave_moment_scale = -3
bank_wave_moment_scale = 6
pitch_damp_moment_scale = 1
bank_damp_moment_scale = 1

Stay with the video and you'll see a divebombing attack on a Japanese flattop and a bit of dogfighting... The whole video is 25 mins long - to long to post - so I cut it at 10 mins.

Link: http://s81.photobucket.com/albums/j220/Pechora07/?action=view&current=DivebombingandPitch-Roll.flv

The mission (with stock ships is here at SOH under my downloads, second from the bottom. http://www.sim-outhouse.com/index.p...&page=downloads&FileUploadName=Shadow Wolf 07

 

[Shadow Wolf 07]

FYI and a question

I just flew a mission off Usio's USS Lexington CV2 and noticed I had a lot of flight deck behind me at start. No problem, right? Just add 10 or so to the takeoff_start value on the ship.cfg file. Well I first adjusted the pitch and roll and noticed this in the flight dec section:

[flight_deck_section] width=32.5
length=248.6
takeoff_start=0,21,-70 //0,21,-80
takeoff_stop=0,21,120
landing_start=0,500,-5000
landing_touch_down=-0.70,20.3,-82.6
landing_stop=-0.70,20.3,-5

The bold -70 entry is what I changed to -80 but the red //0,21,-80 is something not seen in other carriers' cfgs except for Usio's.

Anyone know what this extra is for, should it be changed too. and if not, can/should it be deleted? :typing:

 

[Shadow Wolf 07]

another question

Perhaps Collin would know but...

I've noticed that all of Usio's Ships have on the cfg file [Plkatform] entries. I never intend to use the non-carriers as carriers, so are these entries necessary? Can I remove them?

 

[Collin]

Perhaps Collin would know but...

I've noticed that all of Usio's Ships have on the cfg file [Plkatform] entries. I never intend to use the non-carriers as carriers, so are these entries necessary? Can I remove them?

They can be, but why? The only space they take up is in the .cfg file.


regards Collin:ernae:

 

[Shadow Wolf 07]

I was just wondering in case I delete some of it inadvertantly while editing the takeoff/landing start/stop info or pasing in my standard [DYNAMICS] paragraph.

 

[Blue Devil]

I just flew a mission off Usio's USS Lexington CV2 and noticed I had a lot of flight deck behind me at start. No problem, right? Just add 10 or so to the takeoff_start value on the ship.cfg file. Well I first adjusted the pitch and roll and noticed this in the flight dec section:

[flight_deck_section] width=32.5
length=248.6
takeoff_start=0,21,-70 //0,21,-80
takeoff_stop=0,21,120
landing_start=0,500,-5000
landing_touch_down=-0.70,20.3,-82.6
landing_stop=-0.70,20.3,-5

The bold -70 entry is what I changed to -80 but the red //0,21,-80 is something not seen in other carriers' cfgs except for Usio's.

Anyone know what this extra is for, should it be changed too. and if not, can/should it be deleted? :typing:

The "//" hides everything after it from being read.

I use this notation all the time, ...along w/ ";", ...to note changes or alternate settings.

The difference b/t -70 and -80 is preference, ...some like to T.O. spotted first (forward) in a flight, ...others like (or need) the full deck.

You can also use this:
takeoff_start=0,21,-70
; takeoff_start=0,21,-80

and put the ";" in front of the one ya don't want to use...