I asked the same thing a few weeks back - he did mention that there is a plan for both!
Wowsers⊠that new information about the flightmodeling is scary, sophisticated, maticulous but also very awsome. Great work in teaming up!
Kindest Regards,
Steiny
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@Airmax514 & @Marcoflyer68, a few pictures of AV2 with a nice full size diagram of AV1 as well as a flight report that states the differences between AV1 and AV2 with some finer details on both aircraft.
Link: https://drive.google.com/drive/folders/1Sr1ndkkVlhsisBrDWWohSx9D6a6wBi7l?usp=sharing
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Heya -
thank you very much for the documentation, downloading now 
Cheers
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Hi! Thanks a lot!!!
Massimo
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Systems activation is progressing, many thanks to our fist (secret!) beta-tester Luis, great work of all the team, now the plane can be started up from cold and dark, many switches of the cockpit are operative, from fuel tanks indicators, selectors, fuel pumps to park brake button and light, autobrake, steering mode selector, apu (gpu indeed), bleed air, generators, engines fuel valves, starter, and some fictional environment controlsâŠ
Afterburner effects still not working, if someone has some experience on how to activate these effects any help would be welcome!!!
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It is a pity that MFS2020 does not implement some kind of real time voxelization to calculate in real time the drag curves, Mach cross-section and other roll, pitch and yaw derivatives. I use to play a sandbox game called Kerbal Space Program which has a mod called FAR implemented by an aerospace engineer whom added real time voxelization and of course I created my own version of the XB-70 and it was very interesting to see how the wings position helps at high altitude/high speed to achieve a higher stability when the density of the atmosphere is so low
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Wow, I was just contemplating whether to re-start my own attempt at creating the XB-70, which has been on pause for a year and a half maybe, but luckily I did a quick search and found this thread.
You are much further along than I was when the work paused, excellent. (I went for vacation for a month in June last year, and when I returned I found it hard to re-kindle my enthusiasm⊠also, something had changed in Blender, or I had done something stupid to the Blender model, as exporting had started to take dozens of minutes⊠Starting to back-track to find the problem did not seem funâŠ) And in the meantime, I see they have increased the max number if engines from the paltry four to sixteen, so the XB-70 engines can be properly modelled now, great.
Anyway, I will certainly be happy to pay for this, if it is released commercially.
I see some people have suggested you make this open source, is that something yiu have considered? Would be happy to contribute in such a case.
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Does MSFS yet allow specifying more than one vertical stabiliser, by the way, or does one still need to fake it by claiming the aircraft has just one large vertical stabiliser? And what about the canards, are they entered to the MSFS flight model data in any way? Itâs a bit sad that MSFS does not simply take an arbitrary number of static or movable aerodynamic surfaces (wings, canards, stabilators, elevons, etc) as input, of specified sizes, locations, etc. I think X-plane works like that, but I donât know how well it works in practice. One can hope that MSFS develops in that direction.
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How are you btw modelling the (rather exotic) hydraulic-driven fuel pump system? When I was tinkering with my XB-70 add-on, I pretended the fuel pumps were electric, and tried to assign the same electric power to each pump as it used hydraulic power, etc. Here are some comments from my systems.cfg- (This is from the time when the simulator allowed max 4 engines, so the last comments are obsolete now.)
; We use buses to simulate the hydraulic systems.
; Each primary system delivered 276 gal/min and each utility system 180 gal/min. [Final report pp III-632ff]
; The hydraulic pressure range is 3800 to 4200 psi. Nominally 4000 psi.
; Each primary system produces 276 gal/min at 4000 psi = 0.0174 m3/s * 27.6 MPa = 480 kW
; Without specific information, letâs assume a hydraulic fluid density is a bit less than water, 7 lbs/gal.
; 276 gal/min * 7 lbs/gal = 32 lbs/s.; Letâs try the equivalence 1 volt = 10 psi, 1 A = 0.0267 lb/s for now.
; I.e we claim that each primary system is 400 V * 1200 A = 480 kW
;
; For the utility systems:
; 180 gal/min * 4000 psi = 313 kW
; 400 V * 780 A; We have no idea about the âcapacityâ of the âbatteriesâ of the hydraulic systems. What would the equivalence of a battery be in
; hydraulics, a pressurized container providing hydraulic fluid at pressure? Letâs assume there are no such âbatteriesâ.
; The engine-driven hydraulic pumps. In the real aircraft, each hydraulic system has three engine-driven pumps: PRI1 and UT1 on
; engines 1, 2, and 3, PRI2 and UT2 on engines 4, 5, and 6.; We simulate this as two alternators per electric bus that stands in for a hydraulic system, PRI1 and UT1 on simulator engines 1
; and 2 (iEng 0 and 1), PRI2 and UT2 on simulator engines 3 and 4 (iEng 2 and 3).
Heya -
one still need to fake the aerodynamic model by claiming the aircraft has just one large vertical stabiliser and this is exactly how I had to do for the XB-70
Regarding the canard, it is possible to model it in MSFS simply as an horizontal stabilizer located forward of the main wing, but in this case the elevator would be in that position also
That would have been inappropriate for the XB-70 that has large elevons on the trailing edge of the delta wing, hence I choose to model accurately the elevons position, surface and deflection as part of a âvirtualâ horizontal stabilizer, not adding the canard
In my opinion this has been a good choice as the current response of the flight model to pitch input is very credible (the aerodynamic forces being applied at the correct distance from the CG)
Hope this answers your questions
Cheers
Marco
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Kinda quiet here, anything going on?
Was wondering the same
26 days since last post, hopefully it is getting ready for release.
Hello all, also the developers sometimes need a little vacationâŠ!
The plane works fine, I am modeling the wings to give them the most accurate XB70 profile,
and I am trying to improve the exterior textures.
I am not a texture artist, and working with 4K or maybe 8K textures requires a lot of work,
since is not simply a matter of scale, is a matter of details and accuracy of every part of
the texturesâŠ
But the most difficult task is to find a way to complete the plane with all the âaccessoriesâ
that make a project a finished product (I donât mean strictly a commercial product, but
at least something that people will be happy to contribute to develope and improve
gradually).
I donât want to promise something that I am not sure to maintain, but maybe that in october
in some form the plane will be available.
I tried to propose the plane to some great developers, not in oreder to sell it and make money,
but to have their support for improving textures, sounds, liveries, effects.
Unfortunately they seem to be all too busy to start working on a new project.
So it will be probably released as donationware or patreon, but nonetheless a further work
is required.
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Has it been thought of to use the flaps system to simulate the wings canting? Iâm clueless on dev stuff to be fair but IndiaFoxtEcho is using that method to model the F-14 wing sweep so theyâve said.
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Also, I might be heading to the USAF museum in about a week. Iâd be willing to try to take pictures of any specific spots you may want, if you need it.
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Itâs almost October now I was curious if you were still planning on releasing it? I also keep seeing stuff in the top mach F-22 Discord that thereâs like 96 planes waiting to go to the marketplace so it may be a good idea to release a work in progress version on flightsim.to just to get it out there maybe as a payware. could you possibly make a discord that we can ask questions in?
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There is a new XB 70 video on the airforce Museumâs website I canât send the link or share the video here because Iâm a new user
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Be patient! Maybe that some good news will come in a reasonable time. I am confident that XB70 will fly in all its glory on MSFS. But now the most difficult steps have to be completed.
Unstopy, I would like to have pictures of the main gears boogies, they seem to be quite more complex than I modeled them, but from the pictures is difficult to understand how they are made.
I think that there is also a B58. good pictures of the landing gear would be surely useful, in parallel to the XB70 I am remaking the landing gear of the Hustler, they are really a thrilling piece of engineering.
For the flaps⊠that could be an idea, but we have to use the flaps variable for takeoff and landing, difficult to use the same for the shock waves lift effect⊠during high speed flight flaps have to be retracted of course, so is difficult to use them with different values when retracted⊠but Iâll think about that.
This is just to give you an idea of the armature that animates the parts of one of the gearsâŠ
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