August 6, 200322 yr Hi,I see number of posts/complaints how V speeds are not calculated correctly and that they should be higher.It is interesting how lack of information makes people believe they have knowledge about things they are not informed about. Even more striking is how they protect their opinion :)Instead of proving right/wrong I give you here three tables in the attachment.First is for B737-700, second for 735 and last for 733.All of them are for Flaps 1 takeoff (except for 735 where flpas 5 is used) within the same temperature/pressure table. Suffice to say they are from real AOMs.It is clear from these tables that NG is really Next Generation :-badteethI hope this will relieve Vangelis from questions about V speeds.http://forums.avsim.net/user_files/28653.gifEdited for 735 correction
August 6, 200322 yr Amusingly enough, nobody replies. :-lol Gotta love this stuff.Cheers,Daniel Pimentel
August 6, 200322 yr >Amusingly enough, nobody replies. :-lol Gotta love this>stuff.>>Cheers,>Daniel PimentelExactly. Yet give it a few days and someone else will post a thread to tell us how the V speeds are incorrect...Mike
August 6, 200322 yr Hi,Yes it is utterly amusing to see people "knowing" that V speeds are "incorrect", yet when confronted with hard facts there is noone to be seen! :)I hope people will understand that not all planes need Vr of 140+kts, not all use flap 5, there are no planes where one can strap in and be expert in it etc.If all of them knew what the V speed should be they would not need AOMs, FMC auto V speed calculation or anything like that. Now would you? :-badteeth It would be great, we throw out FMC, AOMs and all stuff containing any form of information and leave the plane to those that have this information engraved in their DNA ;)No offense people, but please do inform yourself from VERIFIED sources before crying out how data is incorrect.
August 6, 200322 yr Alexansdr, Good post, when I first got the PMDG model I did think the takeoff speeds were extremely low, and to be honest with you I thought there was a problem with weight/balance/trim that wouldn't allow you to rotate effectively at those speeds, and I couldn't get the airplane off the ground until I'd busted through V2 by about 20 knots. I haven't taken a close look at that in FS2004 yet... Also, what was confusing me was that the PMDG model only allows a MAX TOW of 133,000 lbs. Which of course means takeoff speeds are below 130 knots. The flight manual has higher MTOW weights than that for the 737-700 NG series. I frequently fly the Aloha 700 series as a pax between Hawaii and California and I know our MAX TOW and rotation speeds are higher. If you put a full pax load into the PMDG model, you can't make it from Oakland to Hawaii much less meet the ETOPS reserves. Anyway, my point is that I was confused on the low speeds because of the model that PMDG is using...clearly for that model they were correct.Hope this makes some sense.regards,
August 6, 200322 yr Hi Chris,I get your point. I miss as well higher MTOW and I do hope that PMDG will either make it via -800/-900 series or as an additional AIR file for current 737-700.Nevertheless, I see that these tables clarified things a bit and I am glad for that :-badteethNow off to sleep and prepare myself for my daily big blue yonder! ;)
Create an account or sign in to comment