V-Speeds are properly going to be determined by aircraft weight, ambient temperature, and airport/RWY altitude .... primarily .... and will vary accordingly.
Flying with a "full load" and using the HJG supplied L1011 panels .... the ASI in these particular panels is pre-bugged for T/O .... but .... these bug settings may, also, be further adjusted, if necessary, by clicking on silent hot points located around the rim of the ASI.
Unlike some HJG supplied panels .... the programing of these L1011 panels is more simple and doesn't include a V-speed calculator to auto-set/adjust the ASI speed bugs according to different aircraft weights .... SO .... one needs to calculate these by their own devices, or, consult independent L1011 data .... which HJG doesn't have/can't provide at this time.
I, personally, find the default ASI based V-speed bug settings to be quite good/reliable "as a basic FS reference" (only) for most weights .... even for landing.
Having said this .... and for a T/O at/near MGTOW one can assume the following ....
- Set 15 units of trim (gauge indication) as displayed on the Center Pedestal sub panel.
- Set T/O thrust to the maximum pre-bugged (on the round analogue engine gauges equipped panels)/stated (on the tape engine gauges equipped panel) EPR limits/values .... which do vary slightly between panel/engine types .... and do not exceed these indications.
- Assume .... 150-155 KTS to be ones V1 reference .... then 160-165 to be ones VR reference .... and then 170-175 to be ones V2 reference for a "MGTOW" departure.
Lighter loads will, obviously, result in appreciably lower V-speed references .... which require intelligent "GUESTIMATION" on ones own part and in the absence of more precise data, but again, in this particular case, the above suggested V-speed references could each be reduced by around 10 KTS for very light payloads.
- Assume .... 140-145 KTS to be the minimum final approach to landing airspeed with full flaps (and possibly a 7* degree) spoiler detente) .... any slower than 138 KTS will further increase the L1011's classic nose high approach to landing attitude to the point of impairing RWY visibility ahead of the simulation ALSO ....one should not be landing, at all, with in excess of 25-30% total fuel remaining.
Whilst not representing precise data .... these "suggested/recommended" V-speeds are "within the ball park" (at least) of authentic V-speed references.
Following these "WILL" keep one out of trouble.
I have written a document which is intended to assist one get the best possible enjoyment from the VISTALINERS/HJG L1011 simulations .... as follows ....
L1011 PANEL INSTALLATION & HANDLING NOTEStonymadgehjg.proboards.com/index.cgi?board=supportpage&action=display&thread=3888This document is the HJG forum based on line manual for these L1011 simulations. It goes a long way beyond panel installation to conclude in a "very basic" flying tutorial .... as well as recommended (for best overall performance) flying guides for each L1011 aircraft type represented by HJG and since most fly slightly differently due to varying weights and engine thrust definitions.
Mark C
AKL/NZ
