Well, after the presentations let’s go with the update that we were waiting for:
F-15 (C/D/E/I) Official Community Mod v.1.15i update
We want to thank everyone who has encouraged us to make this update with such a list of changes, both the members of the team, as well as our testers involved, have been working hard to achieve this result that didn’t pursue other goal than emulate the greatest possible realism.
Changelogs:
We have reviewed the engines for all models to accurate flight envelope and acceleration speeds. We have based our envelopes on the official flight manuals:
- F-15A Flight Manual.pdf
- F-15E Flight Manual 15 April 1993.pdf
Here, flight envelopes and top speeds for military thrust and full AB:
C/D:
E/I:
Note: Take into account that to properly match the flight envelopes, the tests and calibrations were made in a STD day, clean skies, 15 degrees ISA and 35000lbs weight for models C/D and 40000lbs for E/I. The values in blue are for std -10, which means 5 degrees ISA, so these values might dynamically change with live weather or geographic zone.
Flap stages corrected and elevator deflections corrected too according the same manuals:
• So, the F-15 will have only 2 flap stages (0° and 30°).
• Lift vs flap coefficient calibrated by @PridedThread577: “Approx. 20-25% internal fuel and not overall fuel F15E/I at 8 AOA landings will be around 175 knots and F15C/D landings will be around 153 knots. So, we fully recommend you do your landings with 20-25% internal fuel only, or otherwise you will need more speed to land for the same amount of AOA.”
• The elevator deflections have been corrected to 15+ 29- degrees, so you will be able to reach 25% AOA turns over 0% elevator trim.
We have also reviewed the sustained level turns vs Altitude and vs Mach speed, in order to match the official guide’ sustained level turns values, the most accurate possible within the possibilities allowed by the sim:
C/D 39000lbs full AB:
E/I 42000lbs Full AB:
Renewed MFD for all models.
Fixed both external nozzle animations and both analogue/digital meters showing incorrect values on MFDs according to manual:
We have calibrated induced drag scalar, aileron elasticity, aileron effectiveness and roll rates vs AOA to achieve 240degrees/s and sustained turn rates. You need to take cautions according the manual in order to maintain control stability at high speeds:
And last, in order to be able to achieve the world record’s climb profile to 100000ft we made the proper lift scalar vs Mach vs AOA adjustments, so we encourage you to emulate this world record achieved in 1975 for F15C with the minimum amount of fuel:
https://www.thisdayinaviation.com/tag/world-record-for-time-to-climb-to-a-height-of-30000-meters/
Special mention to @DEAN01973: For the love, trust and unconditional support to our work, for his permission to use his xml templates, and for helping us at all times to avoid conflicts with the official product that we love so much.
Special credits for our testers and their uncountable hours of testing and providing continuous feedback and support, their contributions have played a very important role for achieving these results:
@jdiegel54
@PridedThread577
@BostonJeremy77
@Mattalaraka974
@DUKE7483958
@Hedge2222
Special mention to the people I consider my mentors when it comes to tackling the flight and engine model tables, and variables conversion between FSX, prepar3D and MSFS2020:
- Roy Holmes: For his guide FS Thrust versus Altitude, A Method to get accurate results
- Ives Guillaume: For his guide Flight Dynamics in Microsoft Flight Simulator. An Analysis of the Aircraft Specific Input Parameters of FS 2004 and FSX. Version 1.0. July 2012
-
@OzWookiee: For his outstanding AIR to CFG Master Sheet conversions from older SDK and New SDK.
Our work will never match your talent, but thank you for opening the way for us to try.
Thanks to all of you who enjoy our work, because it always has a bit of all of you.
Our best regards and we hope you enjoy this update!
Link to the lastest release: Releases · F-15-C-D-E-I-Official-Community-Mod/dcdesigns-aircraft-f15_v1.0.1_rev_1.15 · GitHub
Instructions: just unzip the folder included in the zip into your community folder. Remove any previous mod you could have before. Official product and mod version must coexists into community folder this way:
Marketplace Customers: We have confirmation that the mod also works for marketplace users. These mod improvements will be applied to: flight model, engines, camera system, autopilot, PiD values and external UI configuration. Improvements made to the HUD or MFDs will not be applied due to Microsoft DRM.
The installation procedure is the same: just unzip the folder included in the zip file into your community folder. Remove any previous mod you could have before.
Thanks @brokendigit and @MarkManner for the tests carried out, and thanks for giving us your confirmation about it working. We hope that users of the Marketplace can enjoy it too."**
, but it is definitely something we can look into and implement a solution if need be.
