Rework of the EC135

It’s a simple wish: Give the EC-135 the love it truly deserves as a local legend. At the same time, extend this love to the helicopter community, showing us that we, as helicopter enthusiasts, are not forgotten or relegated to the sidelines.

We hope for attention to the following specific aspects:

  1. Accurate Flight Model: Faithfully recreate the flight behavior and responsiveness of the EC-135.

  2. Accurate Flight Systems: Ensure precise simulation of avionics, navigation, and other flight systems.

  3. Accurate External Model: Develop a high-quality, detailed representation of the helicopter’s exterior.

  4. Accurate Interior: Deliver a carefully modeled and immersive cockpit and cabin interior.

  5. Accurate Audio: Include realistic external and internal soundscapes, capturing the distinct sounds of the EC-135 and the Fenestron.

  6. Real-life Animations: Incorporate dynamic animations like flight vibrations or other details that bring the aircraft to life.

  7. Configuration Variants:

    • Wire Strike Protection System (WSPS)
    • Double Cargo Hook
    • High and Low Landing Gear variants
    • Winch
    • FLIR System
    • Snow Skids
    • Bear Paws
    • Inlet Barrier Filter (IBF)
    • Radar Nose ( Small and Large )
    • And many more possibilities…
  8. Model and Cockpit Variants:

    • P/T1, P/T2, P/T3, and P/T3H models
    • Cockpit systems like CDS, CPDS, Glass Cockpit, and Helionix configurations
  9. Interior Variants:

    • HEMS (Helicopter Emergency Medical Services) configurations such as AAT or Bucher systems
    • Police FLIR Variant
    • VIP passenger layouts
    • Cargo configurations
    • Standard passenger models
22 Likes

Getting just the flight dynamics right would a good start.

After the disaster that the B407 was at MSFS 2020 launch, and again now with 2024 I am truly surprised this developer is still building helicopters for Microsoft/Asobo. Get a team like Taog in to fix this mess.

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The current state the EC135 is in, is really… on a scale of quality (1-10) it’s maybe a 2 or 1,5 :man_shrugging:

A lot potential for improvement!

(Plus: the rotor disc isn’t even coning)

2 Likes

Being able to see multiplayer helicopters on VATSIM as actual helicopters… that would be the dream.

Hi @Damar5555829,

That request is not something that is for the MSFS Development Team to consider. The traffic models you see on the VATSIM network are determined by external ‘model matching’ tools, of which there are a variety such as: AIG, FSLTL, FS Traffic etc.

If you’d like to see helicopters within the model matching packages for VATSIM, you would need to reach out to the development teams of these packages.

Thanks
The MSFS Team

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I think you’re right, but the good thing about the B407 is that it’s “simple” to improve. So there are people who have worked on the flight model etc. The Nemeth EC135 seems more complex to modify. I’ve heard a lot of explanations about “why the EC135 is more complicated to modify than the helicopters on MSFS2020”. For helicopter enthusiasts who are increasingly numerous, the result seems disappointing. In any case, I haven’t heard many positive opinions on specialist forums. But helicopter enthusiasts are very demanding, which is normal.

But I try to look at it positively: maybe Nemeth’s EC C135, which is easier to fly for beginners, will attract new helicopter enthusiasts.

I don’t know if the B407 has attracted any new enthusiasts, but I hope so :slightly_smiling_face:

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Helicopter looks great, at least good enough when flying in vr, there is something very off with the tail rotor authority

Ad. 6) Make sure the flight vibrations are physically correct and happen on the real aircraft.

Why? I admit this is a bit too nerdy for most :sweat_smile: but as I mentioned in the LL feedback post I find the existing hover vibration/wobbling artificial and distracting and I cannot see it reflected in any cockpit view videos. Take this random CAT-A takeoff on Youtube here:

Once in a hover the 135 seems quite steady to me. My point at least: there is no up/down bumping vibration. Of course if you are sitting in it you will feel -some- vibrations. That is natural and difficult to prevent.

My issue is: there is no “bouncy” up/down vibration on the real machine like in the MSFS 2024 ND EC135 model and analyzing a clip I recorded out of the sim the period of the oscillation as seen on the edge of the moving sunscreen of the instrument cluster versus the outside seems to be around 0,08sec. The inverse of that is the Hertz count, so 12,5Hz. To my knowledge the slowest shaft is the main rotor shaft. Physically viable it -could- vibrate in 12,5Hz, as this frequency is at least somewhat in the realm of the normal operating range (opposed to the turbines and the whole drivetrain, which has way higher fundamentals for each stage and rotational body) -but it doesn’t make sense to me. Does it to someone here?

Here is my reasoning: A rotational frequency of 12,5Hz would be a rotational speed of 750RPM (12,5*60). That is way too high for the rotor. It should rotate at around 395RPM in a hover. My video analysis of the vibration period lacks precision of course, it could in reality very well have been only 0,0759sec and thus 13,16Hz. That would equal 790RPM → twice the speed of the rotor. Or in noise and vibration terms: 2nd order vibrations.
-But- the EC135 has four blades! So this vibration can neither be in rotational speed or 1st order, which in itself would be a sign for an unbalanced rotor (that we don’t want!), nor can it be irregularities in the rotor blades, because there are 4 blades and thus we’d have to expect 4th order vibrations. So either it’s only 6,85Hz or 26,33Hz. An isolated 2nd order aka 1st harmonic doesn’t make any sense to me. Neither does the perceived vibration shape (up/down) that made me analyze this.

I also noticed this wobble vibration on the H125 -if- you play the career mode and do a hoist mission. If you pick up the load the H125 starts to shake as described, -also- at about the same period, hence same frequency. Although the main rotor also spins around the same speed as the EC135, with the H125 it is even more of a mystery for me, because it is a 3 bladed machine.
Another example is the Skycrane also during lifting missions (6 blades). But I didn’t mind to check the frequency.

It’s a minor thing, yes, but I wonder if there is any basis to it I overlooked or if my reasoning is correct and it’s just an overlay effect where some programmer asked the other “People might say our helicopters don’t shake much. We should just add a steady shake… what frequency should it be?” and another programmer went “I dunno… 12Hz or something??”.

For my taste it is distracting in any case, because it moves the whole cockpit relative to the camera. Just statically. It is not an isolated vibration like on a RL or sim Robinson where the compass shakes a little. Or the DCS Huey, where the instrument console shakes when reaching ETL. Like in the joke above, to me it comes across like an attempt to add “a little action”.

I’m sure that if Asobo had the resources, they would have created a more complex EC-135. I worked on this helicopter addon a long time ago (years), and the resources required are substantial and costly.

I say this with all compassion to devs everywhere, but, considering the quality of other helicopter addons both in graphics and flight model, cost and required effort are not the limitation.

Regarding all the issues MSFS2024 still has, and considering this aircraft is a “make good” module for the community’s patience, it is ironic that the EC135 was released in an equally unfinished state as the entire product.

5 Likes

In that case I think the wiser decision would be to release a more dumbed down version that is stable and easy to fly, like the HPG freeware H135. Or just another fixed wing aircraft.

Going with the easy helicopter people will complain of course, but at least it is not again unfinished as in obviously bugged as VoxMortis says.

Instead they dragged an ADAC pilot in front of the camera to be able to say „We even sought out actual pilots(!!) to help us get the flight model as good as possible“ and Jörg even said something like „I hope we got it right“ -all suggesting that their focus was to satisfy the simulation crowd. Then we get to try it, discover it controls badly and from a simulation point of view there is a long list of things that just aren’t right.

And forgive me but bugs like the transfer pumps not working and the helicopter running out of fuel after the small tanks are emptied is not a matter of limited resources. It’s don’t test, don’t care…

4 Likes