Pastalucci

Well sir, you made my day.

You can set those shortcuts in the FMC, I do not know the path exactly, play around a little. Press the MENU button, and they should be in PMDG setup or something similar. You have a lot of shortcuts there to define. Another method is if you have the FSUIPC registered version; if you have it, search on Youtube, there are a few good tutorials.

Regarding 250KT+ below FL100, I see there are heated arguments. In US it seems to be very rare occasions to break this speed limit, but in Europe is commonly seen. When I started this thread regarding the climb performance, I was listening to LiveATC, LROP (Bucharest Henri Coanda) TWR/APP. When there is not a lot of traffic, for departing aircraft, is commonly heard "proceed direct to <WAYPOINT>, free speed (or no speed restrictions)". Sometime this instructions are given even as low as 3000ft, probably after passing the noise abatement limit. Also very often I hear this instruction for descending planes, on approach. Only when they get close to the airport, and again, the traffic is not bad, they maybe get an "160 until 5". But usually high speed approaches are common around here.

No yet, seems like fun. I have to print that section of the QRH and will give it a try.

Coming back on this thread, what I found is that in the perf init page should be put the TOC winds and ISA DEV, in order for the FMC to calculate the best climb performance. When reaching cruise, the winds can be changed with the average wind components, in order to get a better estimation of fuel burn and time to arrival. If one wants so, the cruising waypoints can also be updated with each's forecast wind data from the flight plan, for better prediction. It seems that on shorter flights this is not so significant, but on a longer flight, where winds change, the climb wind and cruise wind can be totally different. This seems to affect the climb performance. If someone with real-life or better sim experience can confirm this, I would be grateful. Thank you.

Thank you for the information. I thought it was like this, but I was not sure that ECON climb speed is also efficient below FL100 🙂. You said efficient for conditions; I always use simbrief, and in PERF page for the average wind and isa dev I put what simbrief gives in the summary: this being the average wind for the whole trip and isa dev. I saw somewhere that in order for the FMC to give the best climb performance, the average wind component and ISA should be the ones from TOC from the flight plan. What versions should fit best? Thank you.

Hello comunity, I have a question. If for example, the ATC gives clearance of no speed restriction below FL100, what is the optimum climb speed? If in normal conditions I would accelerate above 250KT after passing FL100, if I receive this "free speed" let's say at 3000ft, should I accelerate to climb speed even at this lower altitude? I am curious not about speed, because it seems that it would be a faster trip if accelerating below FL100, but regarding efficiency. Thank you.

This drove me crazy for two hours, until I found it.

Thank you for all the replies. I did a vref + 55, and it was veeeery fast. But it was fun to try.

Hello community, I have a question. Let's say you want to simulate a malfunctions of the flaps, and you will need to land with the flaps retracted. How can I calculate my Vapproach speed? In the FMC we have the options for the regular configuations, 15, 30 and 40. Thank you.