I have an Issue, of FMC suggesting me a Flight Level of FL362 on a 25 Min' route (79nm), totally not realistic to climb that high for such a short route.Now based on what I was told, it should suggest an Altitude taking in consideration distance as well, this is called "Trip" Altitude.

Well first of all, it's not called OPT Altitude - but "trip" altitude. And the page I'm speaking of is the INIT REF page 1.

FMC will Calculate it for you. It's called trip altitude, and is shown on the INIT REF page 1 in the FMC. It do however require you to enter basic information: Origin, destination, CI and Weights

This is from the manual:

Trip altitude is automatically computed and displayed whenever entries have been made for the ORIGIN, DEST, GROSS WT, and COST INDEX. Otherwise, the field is blank.Trip altitude is the predicted minimum cost altitude determined by operator constraints. Provides crew a reference for selecting a planned cruise altitude.

I could never find that "trip" altitude that everyone kept mentioning to me (and in the manual as well it appears).I filled in all the details of my flight in the FMC, basically I am ready for take off. forget a sec about the value maybe being empty, I can't seem to find that field at all!!All I am seeing in INIT REF page 1 / x, regarding compute flight altitudes:ACT ECON CRZCRZ ALT OPT/MAX STEPFL110 FL362/393 FL380Note: the FL110 , I put it in manually in the end based on my gut feeling,after searching for the Mysterious "Trip Altitude" which could never be found anywhere.I use those short flight most of the times in the FSX/NGX. for me it is crucial to have that calculated (based on Distance as well).there are flights that short in real life (i do them all the time in real life - as a passenger)example LLBG - OJAI, well Royal Jordanian uses ERJ for that route , but it could easily be an NG.you will see those short distances more often in south east Asia, like Philippines or Indonesia when it's Island hopping,long enough to justify a flight (as cursing it in a ferry would take a long time), but it is actually a very short distance/flight.or in places that there are no roads (crossing the rain forest) and only by flight you may reach there (e.g. Sentani/Jayapura - Papua , Indonesia to the baliem valley, must be done by air, even thoughthe distance is very short) - done by Merpatti commercial Airline & Lion Air, and guess what Lion air were the 1st to have the NG900 in the world at 2006/7.Another example I used to use those flights in the Philippines, when the roads conditions are very bad and a ground ride would take you like 8hr or so, there is an alternative of taking it by Air, e.g. Puerto Princesa <-> El Nido (Palawan).

CRZ ALT OPT/MAX STEPFL110 FL362/393 FL380

The FMC gives you a trip FL of 110, I don't see the issue with that on the short flight? Trip is 110, optimal is 362, max is 393 and next step is 380

The FMC gives you a trip FL of 110, I don't see the issue with that on the short flight? Trip is 110, optimal is 362, max is 393 and next step is 380

it appears you did not read my "note" even though it was colored (to make sure no one would miss it).here is is againNote: the FL110 , I put it in manually in the end based on my gut feeling,after searching for the Mysterious "Trip Altitude" which I couldn't find anywhere.

Hmm okay, excuse me then! I stand to be corrected as always ;)

Gotta pay a little more attention there, mate. The instructions that you posted very clearly said exactly where it is:

yep, I missed the Screen Shot on the manual , when I looked at it again, I noticed there was a screen shot of the PREF INIT showing it.I guess I was not expecting it to be part of the CRZ ALT which one enters manually.I was looking all the time at the INIT REF page (as I was told), it was the under my nose all that time.Thanks a lot Kyle.

You're welcome Joel. I searched for 5 min last night trying to find my keys. Location? Pant pocket. The whole time. It happens...