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BO-105 PAH1A1 progress news  

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  1. 1. BO-105 PAH1A1 progress news

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Posted

Resting "BIANKA" Face.  🤣

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Posted
8 hours ago, Andrew8604 said:

How about Wilma or Nikita?  😍

 

Wilma.png

nikita.png

I recognise Wilma from Buck Rogers, but where is Nikita from?

"Muß ich denn jedes Mal, wenn ich sauge oder saugblase den Schlauchstecker in die Schlauchnut schieben?"

  • 2 weeks later...
Posted

We have taken care of the ammo supplies and would like to show you the progress of our new static objects today. The picture shows a pallet of HOT missiles for the new DCS Cargo System to ensure the supply for the BO-105 with the CH-47F. We are also confident that we will be able to present you the first BO-105 flight with the new flight model in the next few weeks.May be an image of lumberyard and textMay be an image of textMay be an image of text
 

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Posted
vor 9 Minuten schrieb The_Fragger:

We have taken care of the ammo supplies and would like to show you the progress of our new static objects today. The picture shows a pallet of HOT missiles for the new DCS Cargo System to ensure the supply for the BO-105 with the CH-47F. We are also confident that we will be able to present you the first BO-105 flight with the new flight model in the next few weeks.May be an image of lumberyard and textMay be an image of textMay be an image of text
 

:thumbsup: Ich kann's kaum noch erwarten...

  • Like 4

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Posted
vor 5 Stunden schrieb The_Fragger:

We are also confident that we will be able to present you the first BO-105 flight with the new flight model in the next few weeks.

giphy.gif?cid=790b76113jhgi8i4o3zqevdgq1

  • Like 6

regards Ganesh

She: "Your orders from ED have reached a total amount of $ 1.168,94 and your hardware expenses are countless..."
Me: "I can´t invest my money much better until i wait for Germanys Next Top Model": The Bo-105 PAH1A1

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  • 2 weeks later...
Posted

Very much looking forward to this (helped in the early days with the maintenance manuals) as the 105 was the first fling wing aircraft I flew irl.

  • Like 2

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  • 2 weeks later...
Posted

MEDUSA ENGINE (DCS: BO-105)

The BO-105 has two engines of type Allison 250-C20. The engines drive different devices in the helicopter, starting with the rotor system down to the heating system. The difficulties in the simulation are the endless number of physical parameters influencing the behavior and efficiency of the engines. In a simple software solution, all the possible parameter situations are solved in an IF, THEN, ELSE solution. This cannot cover all possible parameter combinations and normally it results in imprecise and unexpected situations. The use of the MEDUSA software system offers a smart possibility to simulate such a system close to natural behavior. In MEDUSA, all different parts of the engine are divided into autarkic tasks. Every task calculates its function along physical graphs and makes the result available to all neighboring tasks of the engine.

 

The Gas Generator in our simulation is divided into the following tasks:

MEDUSA Engine Control Task

Engine Control observes the Pilot’s Control Handle, which defines the intended percentage of the engine power. To maintain the intended engine power, the power control circuit controls the fuel injection into the combustion chamber and, if necessary, the use of the air bleed valves at the compressor stage.

MEDUSA N1 Compressor Task

The compressor stage consists of six axial and one radial blade elements. It compresses the air in a ratio of 6.2:1.0. The air temperature, pressure, and density increase depend on the compressor’s rounds per minute (RPM). In the simulation, both values are calculated exactly along their physical graphs, including the mass acceleration and drag of the spinning compressor. During engine spooling, the compressor is driven by an electrical generator. As soon as the compressor RPM reaches the kerosene flashpoint temperature, the combustion in the combustion chamber is ignited. The compressor is then driven by the N1 Van hot air stream.

MEDUSDA Combustion Chamber Task

The combustion chamber receives the compressed air stream from the compressor. In the simulation, the correct flame parameters for the kerosene amount and burner temperature are calculated. Here, the amount of available oxygen and the temperature from the previous calculation loop are taken to calculate the final percentage of burning fuel. This determines the air gas expansion, causing a hot air stream to leave the combustion chamber. While the hot air stream passes the N1 and N2 sections, it cools down to reach a temperature measured in the turbine outlet. This temperature is shown in the cockpit to monitor for exceptionally hot or cool turbine outlet temperatures (TOT).

MEDUSA N1 Van Task

The N1 Van is the first station reached by the hot airstream. The Van is mechanically connected to the compressor. It is driven by the hot air stream and produces torque to drive the compressor. This takes about 55% of the energy generated in the combustion chamber. The simulation calculates the torque by the speed of air and the air density.

MEDUSA N2 Van Task

Behind the N1 Van, the N2 Van is installed. The N2 Van has a mechanical connection to the gearbox, driving the rotor via a transmission, constructed as a freewheel system. This ensures that the rotor system may have a higher RPM than the RPM produced by N2. The freewheel is important for an autorotation procedure. The N2 Van uses the remaining 45% of the hot air stream to calculate torque to drive the rotor via the gearbox. Even here, the simulation calculates the torque by the speed of air and the air density.

All tasks are influenced by the ambient parameters of outside air temperature and outside air density. Both parameters depend on the current geometric altitude. The advantage of the MEDUSA system is, that the result is produced automatically. Thus, the maximum performances, like maximum altitude with different loads and changing ambient parameters, are presented as in the real world.

The only exceptions are the load-bearing capacities of mechanics and materials. Here, the fixed limits from the documentations are used in the calculation.

Conclusion

Every device in the helicopter, like engines, generators, … runs its own MEDUSA thread. A MEDUSA thread executes a list of tasks as described above for a Gas Generator. The advantages are:

  • The advantageous use of multiple kernels in a computer system.

  • Easy to understand software organization.

  • Encapsulated and autarkic software snippets.

  • Simplified software changes without side effects. (With the exception of effects, which would happen in the real world).

null

 

image.png

  • Like 16

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  • 2 weeks later...
Posted

Can’t wait. Really looking forward to this heli!

  • Like 5

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  • 3 weeks later...
Posted

Really looking forward to this. Would love any info on the flight model. If it can do justice to the kind of flying we see from the German forest video, that would be pretty next level for any helicopter sim I've ever seen...

  • Like 2
Posted
Really looking forward to this. Would love any info on the flight model. If it can do justice to the kind of flying we see from the German forest video, that would be pretty next level for any helicopter sim I've ever seen...
Anyone knows where the best place to reenact that clip? Should we wait for the German map?

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  • Like 2
Posted
41 minutes ago, MAXsenna said:

Anyone knows where the best place to reenact that clip? Should we wait for the German map? emoji6.png

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Fulda Gap would be well suited for that. As a place holder I would use Caucasus.

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"Muß ich denn jedes Mal, wenn ich sauge oder saugblase den Schlauchstecker in die Schlauchnut schieben?"

Posted
Fulda Gap would be well suited for that. As a place holder I would use Caucasus.
Yeah, of course. I should have specified. Where in the Caucasus?

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Posted
27 minutes ago, MAXsenna said:

Yeah, of course. I should have specified. Where in the Caucasus? emoji6.png

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Oof...dunno.....
The upstream of the dam is always a good place to start, but I'm sure there are even better places in the mountains.

 

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"Muß ich denn jedes Mal, wenn ich sauge oder saugblase den Schlauchstecker in die Schlauchnut schieben?"

Posted
Oof...dunno.....
The upstream of the dam is always a good place to start, but I'm sure there are even better places in the mountains.
 
Gonna be scouting, need those powerlines....

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Posted (edited)



BO-105 Theme by Ingo Nasse


  Edited by The_Fragger
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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:

 

 

Posted
2 hours ago, Scarecrow84 said:

I'm just getting audio only with a black screen...

"BO-105 Theme by Ingo Nasse".

Here's another very famous relevant theme. Inspired by this perhaps? 🤔 😉 

Would be dope if this is the background theme! 

 

 

Posted
8 hours ago, Scarecrow84 said:

I'm just getting audio only with a black screen...

It is sound only for the moment.

  • Like 3

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:

 

 

Posted
Am 5.11.2024 um 00:43 schrieb The_Fragger:

Mega 80er-Vibes! ..."Das Allerschönste was Füsse tun können ist, Tanzen!" 🐸

  • Like 5

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Posted
On 11/5/2024 at 12:43 AM, The_Fragger said:

BO-105 Theme by Ingo Nasse

Huh. Spoken words are certainly a bold choice - even if the theme evokes strong echoes of Frankie's "War" and "Two Tribes". It's still too jarring and distracting for me. I'm sure others will love it.

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