Sign in to follow this  
Guest Marc Sykes

Interesting V-speed anomaly/bug

Recommended Posts

Just want to make clear off the top that this isn't a serious problem nor a gripe -- just an interesting anomaly I ran across today.Set up a flight as follows:KLAX-KRSW: LAXX5.IPL J2 GBN J50 ELP DCT PIE.SRQ5(It probably helps to know that the LAXX5 isn't in the SIDSTAR database, so you have to enter the waypoints manually: OCN VISTA JLI KUMBA IPL.)ZFW: 120.0 FUEL: 32.0 CRZ ALT: FL370 CI: 100Chose TO-2 and CLB-2 for N1 Limit; I pretty much always de-rate unless the runway's really short and I'm full of fuel. Then chose flaps 5.V-speeds came back as V1 110, Vr 111, and V2 114. I'm sure all of you can see that that's a bit low for TO-2 and a pretty full load of fuel/pax.The interesting part was that it only seemed to do this for TO-2/CLB-2. I tried to re-enter the data but it consistenly returned these low speeds. So I ended up leaving all the settings the same except going back and selecting TO-1/CLB-1. It then returned V1 137, Vr 139, V2 144, which is what I expected. This was the first problem I'd ever had with auto-calculation of V-speeds, and I pretty much always use TO-2/CLB-2.Anyway, just an interesting point, maybe something to try reproducing.Regards,Marc SykesSenior VP, LAX OperationsPacific West AirwaysZLA ARTCC Chief

Share this post


Link to post
Share on other sites
Help AVSIM continue to serve you!
Please donate today!

Create an account or sign in to comment

You need to be a member in order to leave a comment

Create an account

Sign up for a new account in our community. It's easy!

Register a new account

Sign in

Already have an account? Sign in here.

Sign In Now
Sign in to follow this