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757 Captain >> 757 version 4.x (FSX ONLY) >> Engine Spool-Up/Thrust Modeling
https://www.captainsim.org/forum/csf.pl?num=1231517662 Message started by bearste on Jan 9th, 2009 at 4:14pm |
Title: Engine Spool-Up/Thrust Modeling Post by bearste on Jan 9th, 2009 at 4:14pm
Hey guys, hope all is well. I did a search but couldn't find anything on this topic. I might be nit-picking here, but after spending some good coin and trying to work out several bugs, I am getting more involved with the "aesthetic" working of the aircraft.
I have had the "rat unlocked" problem, solved that by loading FSX up directly to the 757 and saving a flight with both engines running on the ground and a "dark" (clean, no cautions) panel. I have had the numerous CTD's while programming the FMS, usually at TOD after a long flight, and inputting a new approach. I have the rocking, although for some reason less violent with the Registered FSUIPC 4.4 version. I completely changed the soundpack, in fact, yes, I really do fly this aircraft for a US carrier, and find the TSS 767 (yes, I said 767) Rolls Royce model the most accurate for this aircraft. I have the another company 767 also, because we are dual qualified 757/767. After all the bugs, the thing that is killing me the most, amazingly, is the engine dynamics. You get to a point and just say, heck, it has bugs galore, but darn it looks good, so please let it act like a 757! Nope...What is with the immediate sppol-up when adding fuel to the engine on start up. With the RB211, depending on heat/ambient temp, you will have a "dry spool" for around 30 seconds, then add fuel, and you still have another 25-30 seconds after lite-off for the engine to stabilize. What we have here is a generic FSX spool-up, which I know can be changed because the another company and another company models accurately represent the start sequence (~1 minute to go from cold to stabilized). Also, when setting TOGA thrust, the engine spools up rather nicely until ~1.45 EPR, then creeps up to your rate/derate thrust. The amazing thing is that the slow spool should be on the low range, and the quick spool on the top range! 1.45-1.72 EPR should take a second or two, but in the CS757 you might be at rotation before you achieve proper Take Off thrust! All right, had to rant... Everybody enjoy the new year! JB |
Title: Re: Engine Spool-Up/Thrust Modeling Post by bearste on Jan 9th, 2009 at 7:07pm
Also, forgot to add...I know this is just another personal preference, but I located the .cab file and .xml file that contains the code to adjust the overhead fuel quantity indicators to read in pounds instead of kilograms.
I downloaded a free program to extract/compile the .cab and edited the .xml file, but as I am not an "expert" in cab editing, I can't get it to work. However the code is very simple, it contains the gallon to pound to kilogram conversion, and is super easy to adjust, I just can't recompile the cab properly. Anyone have any experience with this? JB |
Title: Re: Engine Spool-Up/Thrust Modeling Post by Aviator327 on Jan 10th, 2009 at 9:25am bearste wrote on Jan 9th, 2009 at 7:07pm:
I would like to have the Fuel Quantity to read in LBS also. Could you tell me where you got the file to do this conversion. Thanks. Email sent. |
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