Aeroplane Heaven North American B-25J Mitchell

Work in progress but the current sounds are quite good already.

I would also suggest that waiting for better sounds is probably cutting yourself to spite your nose. Or ears as it may be in this case.

The sounds are really pretty close to what i heard numerous times at L67 and Chino. Sure they could be a little more differentiated at different rpms and engine loads, but as far as FS24 goes they are definitely among the better ones.

Got a patch email the sound update released

Great news the new version of the B-25 mitchell is online and available to download with the long awaited update to the sounds. Echo-19 have spent some time sampling a real B-25 mitchell ( no we arent jealous at all ! ) and have done an amazing job in getting them to work within the framework of the game.

We would also like to thank all of you that contacted us via email about issues and bugs. These have been addressed in this build.

here is the changes log for you to get a closer look.

North American B-25J Mitchell V1.2.0 Changes

  1. Totally revised sound pack including recordings of genuine B-25J

  2. Fuel Pressures revised

  3. Multiple changes to various geometries in models

  4. Moved optional Garmin/Auopilot to central main panel position (switches out AHI and Gyro)

  5. Shadow Box corrected to eliminate shadow flashing in cockpit.

Flew over Australia to test out the new sounds, and it’s beautiful! Echo 19 did a great job. Can’t wait to fly more tomorrow.

I especially like the popping sounds when on idle

Ground steering is poor after update. Cross wind take off pretty much impossible…

How strong a crosswind did you have?
I just picked this up and didn’t have any issues taking off in a crosswind.
I noticed doing some landing practice in the same strong cross winds ~15 to 20kts that you can only crab so much before you hit the limit of the rudders, so I imagine it will be the same for takeoff.

I don’t know how accurate this is though, as I couldn’t find anything online re: B25 crosswind limits.

I’d suggest doing some testing with a preset so you can control the crosswind strength and run some tests to determine the limits of being able to keep it straight. Start at 5 kts, raise it by 2, rinse repeat.

There’s a B25 POH manual here PilotTrainingManualForTheMitchellBomber.pdf but no limits mentioned, though they do mention various strength crosswinds generally. They must have had some heuristics based on load and risk factors though, even though they had to do what they had to do.
Here’s some pages with techniques:




Crosswind takeoff technique:
It’s as in the manual. The key is to use differential throttle control leading with the upwind throttle.
I don’t have two throttles, and I didn’t have my keys bound to separate throttle, so I just played around doing a Doolittle style takeoff (Read the manual) - put them both to max then pull the downwind throttle way back and even them just before liftoff speed. It’s much more controllable than even throttles and trying to steer with rudders only and veering off the runway once the wind hits those two big rudders.

This was a test in an almost direct sideways ~16kt crosswind, which is considered strong.
Wind direction you can see on the left of the LM panel, relative to aircraft heading cockpit view.
Downwind throttle amount will vary depending on the wind strength.
At ~16 kts I found I had to pull it back below 60 to be able to manage it.
I didn’t use 20 flaps or trim as POH, will try with that later to see any difference.

Of course, if you have dual throttles or bind them to keys you can do it much more accurately like the POH describes, so it would likely be a lesser amount as you would be walking them forward not doing a Doolittle.

It makes sense though, when you consider the physics of what is happening.
You’ve still got to be ready for when the MSFS wind hits the rudders transition, but differential throttles make the difference.

Fun challenge!

That said, maybe it does need tuning. I don’t know!

CFD Flow with differential throttle on Doolittle hold


I’m guessing 2024? To my knowledge, nothing changed in the update, except for fuel pressures. The sim has probably changed with SU5. I can look into it…

As other people noted, we’re going to need to understand the crosswind you were trying to take off in to be able to verify your comment. If you had a 25 knot crosswind, yeah, that would be pretty much impossible to take off in… Less than 15, that should be doable, as they all noted. What is your control setup like?

I’ve been trying to use a gamepad on my laptop when I’m traveling… hoo boy is it hard to control a plane compared to the joystick, Ch Products dual throttle and rudder pedals I have at home. Ouch! Then again, I’m old, and not used to gamepads, so it could be me…

A very impressive piece of work. I love the level of immersion with the high quality and exceedingly-accurate internal sounds, as well as the very accurate flight dynamics. The B-25 has always been described as a sweetheart to fly - a friend of mine, who used to fly the Collings Foundation’s B-25J, described it in simplest terms as handling not unlike a Beech Baron. It is a joy to fly it in the sim, using real-world correct/proper power settings and techniques. A lot of fond memories growing up around B-25s, and its been wonderful reliving some great memories. The excellent ā€˜Wild Cargo’ repaint is by Propblur, available at FS.to.

I would love to get my hands on the paintkit, if there is one.

Can confirm. I held off on the B-25 until last week’s 1.2 update with the new sounds. Flies nicely… and easily, except for that left swing on the takeoff run (got spoiled by the P-38). And great atmosphere, especially (but not exclusively) the soundscape.

So that’s two Aeroplane Heaven aircraft - this and the Mosquito - that are now in my regular rotation.

Never say never.

And… nicely done, AH!

@JohnnyT5000 - hope you can track down a paint kit. Eager to see what you come up with.

So far I am pretty happy with the B-25. I’ve noticed two issues:

  • The nose wheel is off center as described earlier in the topic
  • The copilot is tiny, especially from the cockpit point of view

I thought this, too, but then I noticed it appears the copilot seat is slightly lower that that of the pilot. I’ve no idea if that is accurate. If you’re thinking that just from comparing with the default camera view, I think it is pretty widely agreed that the view is much too high. I lowered mine and everything feels much better in the cockpit.

Lowering the viewpoint helped, but the copilot still looks a bit short. His chair is at the same height, but adjusted slightly more to the back so he has to hunch over a bit. Not good for his posture and it looks a bit strange when you look to the right.

Glad you like my repaint! Having flown on ā€œWild Cargoā€ it holds a special place in my heart. No paint kit was used for it though. I just edited existing texture files from a few liveries that came with the package. Luckily it has a pretty basic paint job so it didn’t take too much time.

The nose wheel actually IS off-center in the B-25. To allow space for the Bombardier to crawl from the cockpit to the nose.

The nose gear leg should be mounted centered with the fuselage, as the photo below illustrates. However, when I’m actually flying the AH B-25 in the sim, it’s not something I fret over.

That looks off-center to me. Slightly right of the center of the framing. The doors tell a different story as well.

But I can’t find any other reference than AI saying it’s off-center, none of the POH’s or training manuals or ā– ā– ā– ā– ā– ā– ā– ā–  and maintenance manuals say anything about it being off-center, and the three view drawing on Wiki shows it in center. I’ll ask Rob Collings next time I see him.

It’s a bit hard to judge because the nosewheel isn’t straight - it’s canted just a few degrees to the aircraft’s left (the viewer’s right), which makes the whole assembly look as if it’s offset. If the wheel was straightened, the strut would look more centered. The other elements that look off balance may be an effect of the light - I was looking at the gear doors and also the nose art, and both elements on the right side of the photo look a bit different, but I think that’s because the right side is in shadow. It may also be that the whole aircraft is shifted just a little to the viewer’s right, consistent with the nosewheel position. That part is hard to judge in these lighting conditions. It might be possible to apply a grid overlay in, say, Lightroom for a more objective test - not sure (I’m a photographer but I do street photography, which is a bit chaotic, so that’s not a tool I work with). The point is, it’s not exacxtly a schematic. My $.02 as a sometime photographer, for whatever that’s worth.

I could get access to one to measure it, lol. I’m not sure where it’s parked at the moment tho. Or maybe Rob knows off the top of his head. I’m intrigued, because I swear I read it’s a bit offset once, snd I don’t think I’m confusing it with the A-10. But.. I’m old lol.. well not that old, but, old enough :rofl: