AJPC Revision history ===================== Version 2.41 ------------ - Add edition of friction coefficients (from 0.010 to 0.100) for Roll and T/O calculations Version 2.40 ------------ - Add calculation tables for descent performance (both idle throttle and fixed descent slope) [Note that fixed descent slope calculations are based on minimum thrust, that can be negative and achieved, depending on the model, at some throttle position and not necessarily at iddle throttle position] - Add some options for calculation of IAS/CAS/Mach relationships used by AJPC (see settings & explanations in the new Aerodynamics IAS/CAS/Mach calculation options menu) - Add engine throttle snapshot - Corrects some problems related to several minimum and maximum engine thrust depending on engine tables - Corrects some wrong PPH calculations (Approach data) - Some other minor changes Version 2.36 ------------ - Prevents portable version to be executed from a protected directory - Corrects a bug writing aircraft data files in the wrong place in portable version Version 2.35 ------------ - Corrects Take off calculations that didn't correctly take into account altitude/temperature settings and ground effect for VR calculation - Allow free N1% selection (>=75%) for take off calculations in addition to N1 values calculated for a max 40% derate mode - Some other minor changes in selectable T/O parameters - Corrects a rare bug that may occur in mission calculation - Add kg/lb option for mission calculations - Some other minor code optimization Version 2.33 ------------ - Minor changes Version 2.32 ------------ - Adds P3D v3 compatibility Version 2.31 ------------ - Corrects a bug reading aircraft data without "general aerodynamics" section (0x1101) - Web links updated - Portable version added - Some other minor changes Version 2.30 ------------ - Allow 500 lb weight increments - Adds text profile creation from some cruise performance tables - Some changes in minimum allowed speeds/mach number for some calculations - Few other minor changes Version 2.23 ------------ - Allow 2 program instances to run at the same time - Some more precise check of autoupdate capabilities and write protection (table save as text files) - Checks more sim options default directories Version 2.22 ------------ - Change in input weight limits (previously only 6 digits) Version 2.21 ------------ - Corrects an error occuring when aircraft model doesn't have a Tbl 1507 - Adds aircraft aerodynamical constants display - Adds an aerodynamical "snapshot" sheet - Few other minor changes Version 2.20 ------------ - Adds flexibility in saving table text files (name and destination directory are now selectable) - Corrects a bug in saving text file availability when data are changed - Adds a custom cruise calculation sheet from csv text file import (GW,Altitude,mach,DISA) - Adds a "climb profile" N1/ROC data table - Adds a technical aircraft information menu - Few other minor bug corrections and changes Version 2.12 ------------ - Change in configuration file name and location (previous settings will be kept) Version 2.11 ------------ - Remove recent aircraft reference when not anymore available - Adds a clear aircraft history menu - Changes program information/update screen - Few other minor changes Version 2.10 ------------ - Add climb and descent data tables (time/distance/fuel) for given speed/engine settings - Some menu items rearrangement - Add restriction to existing FL only in some modules - Increase payload weight limit for mission calculation Version 2.03 ------------ - Corrects a bug in climb performance calculations for N-1/N-2 configurations Version 2.02 ------------ - Corrects a bug in lift calculation with flaps (only affects T/O calculation module) - Adds now friction coefficients and scalars in aircraft parameters (will be saved with aircraft data) - Adds a Roll calculation module - Adds recently used aircrafts on aircraft data menu for fast loading - Minor changes to aircraft parameter files (ajpcdat extension) Note: Old dat files will be erased and not anymore used - Other minor bug fixes Version 2.01 ------------ - Adds the possibility to define ground friction coefficient for T/O calculation (hard runway only) - Other minor changes Version 2.00 ------------ - Improves calculation speed and stability in most modules - Corrects standard pressure ratio calculation that was slighly incorrect (not taking into account geopotential correction FS performs) - Corrects IAS/mach calculations taking into account angle of attack when feasible; [Some complicated calculations still assume AoA=0 for IAS (but take into account airspeed indicator offset/scalar)] - Corrects some bugs in iterative performance calculation that prevented properly displaying data on some models - Improves approach data calculations - Changes climb profile settings (target ROC or derate profile) - New mission calculation overall process - Adds take off data calculation - Some other cosmetic changes Version 1.40 ------------ - Now accurately calculates induced drag for all jet aircrafts (with and without winglets) - Removes experimental induced drag calculation that is not anymore needed - Some improvement in calculations of thrust offsets - Other minor changes Version 1.36 ------------ - OS program requirement raised to Windows XP or above - Default initialization file location (AJPC.ini file is now stored in the appropriate Users subfolder) - Aircraft data and options now stored in ProgramData system AJPC subfolder (note that old definition files that were stored in application directory will have to be moved there) Version 1.35 ------------ - Adds approach performance data calculations - Exact CAS calculation option removed (CAS is now calculated according to FS; see Version 1.31 note) - Adds Windows 8 compatibility - General display improvement - Automatic program update on request implemented - Some bugs corrected - Other minor changes Version 1.31 ------------ - Adds an option for properly calculating Mach-CAS/IAS relationship according to the way FS does it (Note: FS9/FSX incorrectly calculates CAS from Mach number; see: http://www.flightsim.com/vbfs/showthread.php?224097-Is-IAS-indicated-wrongly-by-FS As far as you use AJPC for tuning FS aircrafts or planing flights, I recommend you always enable this option (default is ON) Future versions may even remove exact CAS calculation (useless for FS planing) Version 1.30 ------------ - Adds personalization from aircraft data parameters and display options - Save aircraft options and display parameters between sessions - Some improvements in data display - Discard some aircrafts with special turbine engine flags (unreliable calculations) - Some code optimisation - Other minor changes Version 1.20 ------------ - Improves browsing for aircraft data folder (directly positioning on the default selection or previously used folder) - Corrects incorrect reading of TSFC on some FSX models (leading to crash for some performance calculations) - Change Mach/IAS min max choice capabilities - Adds update check information - Memorize last aircraft used and options between sessions - Change max wind speed to 150 kts - Contingency fuel calculation now set to 3 or 5% (user choice) or 5 minutes whichever is the greater - Issues a warning for winglet equipped aircraft (unreliable default CDi calculation) Version 1.11 ------------ - Corrects incorrect fuel calculations when "thrustspecificfuelconsumption" parameter is defined (some FSX models) Version 1.10 ------------ - Adds N-1 and N-2 performance calculations - Adds ROC climb profile option (with max N1 option) - Some changes in mission calculation - Corects several small bugs - Some other cosmetic changes (interface) Version 1.01 ------------ - Corrects a bug in IAS/CAS calculation (from Mach) Version 1.00 ------------ First released version Hervé Sors hsors@hotmail.com http://www.aero.sors.fr