Question on gas turbine powered ships and blade count - Page 2

Bubblehead Nuke · 05-16-06, 06:29 PM

Quote:

Originally Posted by MaHuJa

esp in as "sonar-heavy" sim as this.

I'll fire up my laptop now, but I expect *only* the speed is transmitted from one computer to another.

That was my original question to begin with. If you can decouple bladerate to actual ships speed it makes for a more interesting tactical situation. It takes a preset matchimatical equation and trashes it.

I do not like to give any 'gimme's' in a game and any trick, tactic or subterfuge that is NOT a cheat I am open to and willing to use. I like to make the other side think. All's fair in love and war.

Linton · 05-16-06, 06:55 PM

Just a quick question,do you have fadecs on the gas turbines you operate at sea or any other power management device?The 1980s cfm powered 737 had pmc's which were basically fuel trimmers.The later Trent engine from Rolls Royce has a fadec-it is really easy to start and operate.

compressioncut · 05-17-06, 10:23 AM

Quote:

Originally Posted by Linton

Just a quick question,do you have fadecs on the gas turbines you operate at sea or any other power management device?The 1980s cfm powered 737 had pmc's which were basically fuel trimmers.The later Trent engine from Rolls Royce has a fadec-it is really easy to start and operate.

I do not know as I`m not an engineering type, but the most common naval marine gas turbine is the GE LM2500 (Perry, Burke, Tico, Canadian Patrol Frigate, etc). You might be able to find out more from there.

http://www.geae.com/engines/marine/lm2500.html

http://www.fas.org/man/dod-101/sys/ship/eng/lm2500.htm

http://www.fas.org/man/dod-101/navy/...ng/62n-116.htm

They don't take much time at all to fire up, though.

NastyHyena · 05-19-06, 08:30 PM

GE's propoganda on the first link indicates 'Intigrated Electronic Control', which sounds like a similar animal to a FADEC.

As for start stop time, you need to remember these are turboshaft engines... Or if you want to be very creative, turboprops with the prop submerged in water. They may fire up quick (inside 20 seconds between engaging starters and the engine lighting off), but then you need a few minutes for the engine to stabilize or you risk breaking things.

05-16-06, 06:55 PM	#17
Linton Sea Lord Join Date: Dec 2003 Posts: 1,898 Downloads: 0 Uploads: 0	Just a quick question,do you have fadecs on the gas turbines you operate at sea or any other power management device?The 1980s cfm powered 737 had pmc's which were basically fuel trimmers.The later Trent engine from Rolls Royce has a fadec-it is really easy to start and operate. __________________ http://lintonsview.blogspot.com/

Thread Tools
Show Printable Version Email this Page
Display Modes
Linear Mode Switch to Hybrid Mode Switch to Threaded Mode

05-19-06, 08:30 PM	#19
NastyHyena Watch Join Date: Jan 2002 Posts: 22 Downloads: 0 Uploads: 0	GE's propoganda on the first link indicates 'Intigrated Electronic Control', which sounds like a similar animal to a FADEC. As for start stop time, you need to remember these are turboshaft engines... Or if you want to be very creative, turboprops with the prop submerged in water. They may fire up quick (inside 20 seconds between engaging starters and the engine lighting off), but then you need a few minutes for the engine to stabilize or you risk breaking things.