The_Fragger Posted May 22 Author Posted May 22 UPDATE – BO-105 DEVELOPMENT STATUS It’s time for a proper update. Since 2013, I’ve been working to bring the BO-105 into DCS – and the path has been anything but smooth. I’ve gone through technical hell, complete rewrites, system redesigns, hardware issues – and just as many challenges caused by people, not technology. To be clear: some individuals actively made it difficult to realize this module. Instead of support, I encountered deliberate resistance, withheld knowledge, and ego games from so-called “experts” who could’ve helped but chose not to. But I didn’t give up. I pushed forward. A true game-changer came with access to the original technical documentation from Lager Lechfeld. These documents didn’t just clarify the system architecture – they provided every single value needed to accurately simulate the engine: flow rates, pressures, temperature limits, control curves, response timings – all of it. That level of data brought the entire project to the next level of fidelity. Right now, we’re fully focused on improving and finalizing the fuel control system, which is directly dependent on the GPFC (Gas Producer Fuel Control) – the brain of the BO-105’s turbine management. The current implementation includes: – Fuel flow logic and pressure dynamics – Ohmic resistance, voltage, amperage, and current load behavior – Hydraulic system response and complete onboard electrical logic – All connected in one integrated simulation environment The engine is being simulated 1:1, using real-world parameters – no assumptions, no placeholders. Just raw, system-level fidelity. And that’s not all – the entire rotor system is fully modeled, including the hingeless, rigid rotor head and its unique 78° phase lag. This key difference to conventional rotor systems has a significant impact on control behavior and is being replicated exactly in the flight model. So why all this? Because the BO-105 is the love of my life. This isn’t just about “getting it to fly” – it’s about honoring a machine that deserves to exist in DCS in all its technical brilliance. To those who’ve supported this project over the years – thank you. To those who made it harder – congratulations. You made it take longer. But you didn’t stop it. This isn’t just a helicopter mod. It’s a mission that started in 2013 – sharpened by adversity, fueled by obsession, and built with absolute love and respect for this aircraft. And yes – I know the flight model commentary is coming. I’ll be reading it… popcorn in hand 19 15 2D/3D Artist MILTECH-5 /PD Lead 3D Artist - TrueGrit Virtual Technologies [sIGPIC][/sIGPIC] BO-105 PAH1A1/VBH / HKP-9A / BO-105 CBS-5 KLH Eurofighter Typhoon https://www.facebook.com/PolyDynamicsDCS/ Windows 10 (x64) 3x Corsair SSD GT 250 GB Mainboard: Asus STRIX Z390-F CPU: Intel Core I9-9900K @ 3.60GHz RAM: 64 Gb Graphics: MSI GForce GTX 980 TI 4GB HOTAS Warthog Hofmann Simpad Rudders Oculus Rift / Oculus Touch Heavy Metal is the law ! :punk:
Rudel_chw Posted May 22 Posted May 22 37 minutes ago, The_Fragger said: Because the BO-105 is the love of my life. This isn’t just about “getting it to fly” – it’s about honoring a machine that deserves to exist in DCS in all its technical brilliance. Wish you all the best on your journey, I promise to purchase it once it reaches the Store .. it has always had a soft spot on my brain, since it was used by all armed forces of my country: Cheers and thanks for the update. Eduardo PS: If you ever need help with creating missions for this bird, I would love to take part on their development. 8 For work: iMac mid-2010 of 27" - Core i7 870 - 6 GB DDR3 1333 MHz - ATI HD5670 - SSD 256 GB - HDD 2 TB - macOS High Sierra For Gaming: 34" Monitor - Ryzen 3600 - 32 GB DDR4 2400 - nVidia RTX2080 - SSD 1.25 TB - HDD 10 TB - Win10 Pro - TM HOTAS Cougar Mobile: iPad Pro 12.9" of 256 GB
Mike Force Team Posted May 22 Posted May 22 @The_Fragger Sorry to hear about the challenges you faced but glad you came across the right person that gave you needed critical information. Along with your perseverance, you have the knowledge and satisfaction you did it. I will add this rotary when it is available. Mike Force Team 6
Schmidtfire Posted May 22 Posted May 22 (edited) Twelve years of development and it reads like it might still be a year or two left on the journey to release... Hats off for the persistence and not giving up. Very impressed by the level of simulation of the Bo-105 you are trying to achieve Edited May 22 by Schmidtfire 3
The_Fragger Posted May 22 Author Posted May 22 27 minutes ago, Schmidtfire said: Twelve years of development and it reads like it might still be a year or two left on the journey to release... Hats off for the persistence and not giving up. Very impressed by the level of simulation of the Bo-105 you are trying to achieve Really appreciate it! After all these years, it became clear: we’re either doing it right – or not at all. The BO-105 isn’t just about flying, it’s about feeling real. And that’s exactly what we’re still refining 15 2D/3D Artist MILTECH-5 /PD Lead 3D Artist - TrueGrit Virtual Technologies [sIGPIC][/sIGPIC] BO-105 PAH1A1/VBH / HKP-9A / BO-105 CBS-5 KLH Eurofighter Typhoon https://www.facebook.com/PolyDynamicsDCS/ Windows 10 (x64) 3x Corsair SSD GT 250 GB Mainboard: Asus STRIX Z390-F CPU: Intel Core I9-9900K @ 3.60GHz RAM: 64 Gb Graphics: MSI GForce GTX 980 TI 4GB HOTAS Warthog Hofmann Simpad Rudders Oculus Rift / Oculus Touch Heavy Metal is the law ! :punk:
LuseKofte Posted May 22 Posted May 22 3 hours ago, The_Fragger said: To those who’ve supported this project over the years – thank you. I also thank they did, I silently did myself. BO 105 and when I heard it was worked on hyped me up and made me go all in for chopper simulation. I am so happy it is not shelved. This wil be my Number UNO go to module ever. I really given up on this. But now I am happy 3
Gabreil Posted May 23 Posted May 23 So looking forward to seeing this in DCS. I grew up watching the BO105 (civilan version) doing work on Lighthouses.. The sound it makes and the sleek look is amazing... and just thinking about it sends tingles down my spine... Keep up the great work 1
Mike Force Team Posted May 23 Posted May 23 @The_Fragger You could make a video that reveals your challenges, obstacles you conquered, and lessons you learned on your journey. Mike Force Team
Kang Posted May 23 Posted May 23 Always good to read some news here. Most impressive that you have never given up, even in these trying circumstances. And definitely also great to gain the impression that the project is, indeed, making a lot of headway now. It might still take time, but I, too, have the feeling that this will be one amazing module in DCS. 1
Volator Posted May 24 Posted May 24 Thanks for the statement. So happy to read the work continues. The Bo is going to be amazing. Can't wait to fly the PAH and the VBH on the CWG map. 2 1./JG71 "Richthofen" - Seven Eleven
rato65 Posted May 24 Posted May 24 @The_FraggerThanks for the update. Your passion is appreciated - I am excited to read you continue despite / with all the challenges.
TopoSolitario Posted May 26 Posted May 26 Is this going to be the next helicopter in the line that DCS is goint to announce at some point soon?
Hammer1-1 Posted May 26 Posted May 26 1 hour ago, TopoSolitario said: Is this going to be the next helicopter in the line that DCS is going to announce at some point soon? soon? was announced almost a decade ago, still got a ways to go. I assume that there will be another helicopter coming before this one, once upon a time Belsimtek announced an AH-1G/S/W that got ghosted after the F-5E was released. There IS another helicopter coming out soon. Intel 13900k @ 5.8ghz | 64gb GSkill Trident Z | MSI z790 Meg ACE | Zotac RTX4090 | Asus 1000w psu | Slaw RX Viper 2 pedals | VPForce Rhino/VKB MCE Ultimate + STECS Mk2 MAX / Virpil MongoosT50+ MongoosT50CM | Virpil TCS+/ AH64D grip/custom AH64D TEDAC | Samsung Odyssey G9 + Odyssey Ark | Next Level Racing Flight Seat Pro | WinWing F-18 MIPS | No more VR for this pilot. My wallpaper and skins On today's episode of "Did You Know", Cessna Skyhawk crashes into cemetery; over 800 found dead as workers keep digging.
Hiob Posted May 27 Posted May 27 Not new, but needs to be shown from time to time: 9 "Muß ich denn jedes Mal, wenn ich sauge oder saugblase den Schlauchstecker in die Schlauchnut schieben?"
Raven (Elysian Angel) Posted May 27 Posted May 27 Never gets old 2 Spoiler Ryzen 9 5900X | 64GB G.Skill TridentZ 3600 | Asus ProArt RTX 4080 Super | ASUS ROG Strix X570-E GAMING | Samsung 990Pro 2TB + 960Pro 1TB NMVe | VR: Varjo Aero Pro Flight Trainer Puma | VIRPIL MT-50CM2 grip on VPForce Rhino with Z-curve extension | Virpil CM3 throttle | Virpil CP2 + 3 | FSSB R3L | VPC Rotor TCS Plus base with SharKa-50 grip | Everything mounted on Monstertech MFC-1 | TPR rudder pedals OpenXR | PD 1.0 | 100% render resolution | DCS graphics settings
Hiob Posted May 27 Posted May 27 This marvelous machine was so ahead of its time! 1 "Muß ich denn jedes Mal, wenn ich sauge oder saugblase den Schlauchstecker in die Schlauchnut schieben?"
Mike Force Team Posted May 30 Posted May 30 @The_Fragger While 12 years developdevelopment is a long time, you have the satisfaction of saying, "I did this." As the author, creator, and expert on your full-fidelty module, you can say when the rotary is ready. With the understanding your finished rotary will be successful, people will likely ask you to create a brand new module. Mike Force Team
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