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#13374219 Jul 31, 2017 at 08:57 AM · Edited 3 years ago
Major General
723 Posts
The primary goal of OPRF is realistic military aviation with an emphasis on combat. The aircraft in the OPRF fleet must meet certain criteria to uphold this goal. If a plane does not meet any of these criteria, it will not be eligible. Planes that are already in the fleet but do not comply will have one month to rectify any issues before being removed from the fleet roster.


* Real-world military application. In order to be included, a plane (or it's closest real-world analogue if the plane is fictional) must have been used by a real-world military at some point in history. For instance, a Cessna 172 is ineligible, but a Cessna T-41 (with appropriate liveries and engines) would be.
* FDM's must be as realistic as possible. We will not discount planes on whether they are based on YASim or JSBSim. If the plane is fictional, it must be reasonable based on the plane's intended role and real-world analogues. Things to look out for are maximum height, maximum speed at varying heights, acceleration, lowest stable speed, maximum and minimum G, cornering speed, and fuel consumption.
* Damage code must be taken from this repository location. It is important to verify that systems fail correctly, especially engines in YASim-based planes.
* Radar code must not be able to see through terrain. See the Viggen or the MiG-21bis as examples. In addition, radar code must also factor in notching if applicable, and RCS. In other words, make radar real.
* Missile guidance code must be taken from this repository location, or the derivatives found on the F-14b, F-15, or Mirage 2000. It must be kept up to date.
* Weapons code must be the standard OPRF weapons code (if applicable), and the weapons should be affected by flares and chaff.
* Blackout and redout are required.
long live the 88th
#13377176 Aug 02, 2017 at 06:48 AM
Major General
723 Posts
Current aircraft not in compliance:

FDM is not accurate enough, specifically it's top speed at low altitudes (and possibly it's climb rate?)

Eurofighter Typhoon
Guided missile code needs updating. This will be very nasal-intensive. It would probably be easier to do a full JSBSim conversion and write a new payload script for it.

RC-137R and EC-137R
Right most screen of the radar view can see through mountains.
long live the 88th
#13377316 Aug 02, 2017 at 08:56 AM · Edited over 3 years ago
Lieutenant G...
614 Posts
About the RC/EC we will remove the screen for now and maybe a new radar system in canvas might be introduced to replace the current one.
E-8R has a ground-pointing radar, so maybe that can be left but yet improved.
Breakin' the sound barrier every day!
Peace through superior AIRPOWER
Si vis pacem para bellum

Nickel Viper Driver - 555th FS, 31st FW (2021-).
Buzzard Viper Driver - 510th FS, 31st FW (2018-2020).
Reaper Eagle Driver - 493d FS, 48th FW (2016-2018).
#13382472 Aug 05, 2017 at 07:13 PM
2nd Lieutenant
13 Posts
The RC and EC -137R no longer contain this screen, as it seems to have failed ;)

Kind Regards,

FlightGear Aircraft Developer
#14320920 Mar 04, 2020 at 04:32 PM
Brigadier Ge...
484 Posts
So, it seems to me if A-10 gets damage update it could pass, am I correct?

I know the aim9 dont work, but that dont make it fail the requirements.
"No one dared to make a slip, the stranger there among them had the big iron on his hip."
#14320954 Mar 04, 2020 at 06:22 PM
Major General
723 Posts
As far as I know, damage should be up to date already. I can double check though.

But, yeah the YASIM version should be good to go. It has limited armament - I can’t be arsed to rewrite it or figure out the current code though. Maybe eventually in the future.
long live the 88th
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