Sub properties question

swdw · 11-20-07, 09:11 AM

Looking at the properties section I had a couple of questions

under unit submarine/properties/unit ship/object hydro there is a fr_ratio parameter. Does anyone know what this is for?

Also under surfaced and submerged drag, there are 2 settings- LR and UD

What is the difference between the 2?

Last does anyone know if drag affects fuel/battery range or top speed? Since these have totally seperate entries it made me wonder how much I can play with the drag without messing those up.

Thanks ahead of time.

Digital_Trucker · 11-20-07, 11:15 AM

Quote:

Originally Posted by swdw

Also under surfaced and submerged drag, there are 2 settings- LR and UD

What is the difference between the 2?

This is a pure guess, but considering that we are talking about drag, I would think that LR = Left/Right or horizontal drag and that UD would be up/down or vertical drag. Considering the shape of the boats there would definitely be different drag coefficients in the different directions.

ref · 11-20-07, 11:21 AM

Quote:

Originally Posted by swdw

Looking at the properties section I had a couple of questions

under unit submarine/properties/unit ship/object hydro there is a fr_ratio parameter. Does anyone know what this is for?

Also under surfaced and submerged drag, there are 2 settings- LR and UD

What is the difference between the 2?

Last does anyone know if drag affects fuel/battery range or top speed? Since these have totally seperate entries it made me wonder how much I can play with the drag without messing those up.

Thanks ahead of time.

fr_ratio is used to position the gravity center, (1 front, 0.5 middle, 0 back), in conjunction with gc_height (meters from the bottom).

LR is left/right drag and UD is up/down drag, they defines the resistance to movement of the object.
I don't know for sure if they affect the ranges, but I think they do.

Ref

11-20-07, 02:15 PM

yes, drag = resistance and the amount of drag will effect fuel range and battery life.

think of it as if you were literally dragging something.

swdw · 11-20-07, 09:37 PM

Thanks everyone. I had a feeling FR was "front rear" CoG, but wasn't sure.

But for the life of me couldn't figure out LR and UD drag- too much time modding flight sims and was thinking it must be something complex

11-20-07, 09:11 AM	#1
swdw Grey Wolf Join Date: Sep 2007 Posts: 921 Downloads: 75 Uploads: 0	Sub properties question Looking at the properties section I had a couple of questions under unit submarine/properties/unit ship/object hydro there is a fr_ratio parameter. Does anyone know what this is for? Also under surfaced and submerged drag, there are 2 settings- LR and UD What is the difference between the 2? Last does anyone know if drag affects fuel/battery range or top speed? Since these have totally seperate entries it made me wonder how much I can play with the drag without messing those up. Thanks ahead of time. __________________ "There are only two types of ships- submarines...... and targets" Unknown "you wouldn't catch me on a ship that deliberately sinks itself"- comment to me from a surface sailor. System: AMD 6300 3.5 GHz \| 32GB DDR3 \| SATA 300 320GB HD, SATA III 1TB HD, SATA III 1.TB HD \| ASUS Sonar DS sound card NVIDIA 1660 Super OC \| Windows 10

11-20-07, 09:37 PM	#5
swdw Grey Wolf Join Date: Sep 2007 Posts: 921 Downloads: 75 Uploads: 0	Thanks everyone. I had a feeling FR was "front rear" CoG, but wasn't sure. But for the life of me couldn't figure out LR and UD drag- too much time modding flight sims and was thinking it must be something complex __________________ "There are only two types of ships- submarines...... and targets" Unknown "you wouldn't catch me on a ship that deliberately sinks itself"- comment to me from a surface sailor. System: AMD 6300 3.5 GHz \| 32GB DDR3 \| SATA 300 320GB HD, SATA III 1TB HD, SATA III 1.TB HD \| ASUS Sonar DS sound card NVIDIA 1660 Super OC \| Windows 10

11-20-07, 02:15 PM	#4
Webster Stowaway Posts: n/a Downloads: Uploads:	yes, drag = resistance and the amount of drag will effect fuel range and battery life. think of it as if you were literally dragging something.