Beagle Pup experiment

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bomber
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Re: Beagle Pup experiment

Postby bomber » Mon Nov 28, 2016 6:20 pm

Oh I know what I forgot to mention with my beagle pup and that is damage..

if you go into the property tree under jsbsim/T4T/damage you'll see a whole list of properties that can be damaged...

Within a combat flight sim these will be linked to the probability engine that determines severity of damage once a hit has occurred but at present they're just hooks into the fdm..

A value of 1 is undamaged with zero being missing... please note if you decide that the inner wing (1) is missing all outer parts of the wing will also go with it... same for any other number of wing section.

regards

Simon
"If anyone ever tells you anything about an aeroplane which is so bloody complicated you can't understand it, take it from me - it's all balls" - R J Mitchell

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IAHM-COL
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Re: Beagle Pup experiment

Postby IAHM-COL » Mon Nov 28, 2016 6:30 pm

are you saying that flying your pup I am vulnerable to being shot down by J. Maverick or any other OPFOR gunner?
Now that's an scary thought!!!
R.M.S.
If we gave everybody in the World free software today, but we failed to teach them about the four freedoms, five years from now, would they still have it? Probably not, because if they don’t recognise their freedoms, they’ll let their freedoms fall

bomber
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Re: Beagle Pup experiment

Postby bomber » Mon Nov 28, 2016 7:12 pm

sanhozay wrote:
When I conduct a glide test it doesn't respond as well as some other aircraft, but it does glide and it took a lot of repeated tests adjusting the AeroRP and CoG to get it to do so. Even with CG on the longitudinal axis, it tends to roll to one side, something I don't yet know how to correct. If Richard's FDM does the same as my Aeromatic FDM and Bomber's composite FDM doesn't, there is an opportunity to learn something.


Check your aileron code there's something odd.

Infact check all control surface code, they're all none zero
"If anyone ever tells you anything about an aeroplane which is so bloody complicated you can't understand it, take it from me - it's all balls" - R J Mitchell

bomber
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Re: Beagle Pup experiment

Postby bomber » Mon Nov 28, 2016 7:18 pm

Ah sanhozzay.... does FG have the capability of putting out smoke particles from the wing tips ? if so could you implement it when you get time, so as we can look at the smoke trail and see if it aligns with video evidence of how the smoke actual behaves during a spin ?

Regards

Simon
"If anyone ever tells you anything about an aeroplane which is so bloody complicated you can't understand it, take it from me - it's all balls" - R J Mitchell

bomber
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Re: Beagle Pup experiment

Postby bomber » Mon Nov 28, 2016 8:41 pm

Guys anyone know what fuel system is fitted on the 100hp engine ?

Basically need to know if it suffers fuel starvation during -ve G manoeuvrers, if so will add it into fuel system.
"If anyone ever tells you anything about an aeroplane which is so bloody complicated you can't understand it, take it from me - it's all balls" - R J Mitchell

sanhozay
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Re: Beagle Pup experiment

Postby sanhozay » Mon Nov 28, 2016 10:45 pm

Don't worry about the trim offsets, I know what they are -- I was experimenting with fixed trim tabs.

Smoke -- I suppose you'll be wanting different colours on each wing too? :roll:

Image

EDIT: Base version with generic autopilot and wing tip smoke is here: Bomber Base Beagle Pup. If you want to fiddle with the smoke, look in Models/Effects at tiptrailL.xml and tiptrailR.xml and refer to Flightgear Particle System. It is off by default; to turn it on, you need to open up the property browser and set "controls/smoke" to 1.

Fuel system is a pretty standard setup. Wing tanks, four position selector (off/left/right/both), engine driven fuel pump, boost pump which should be on for takeoff and landing. There is a known issue with having both tanks selected when fuel contents are below 2 gallons in a tank and you'll see a placard along the lines of "When fuel gauge is in yellow sector switch fuel cock to individual tank" on some aircraft.

https://assets.publishing.service.gov.u ... G-AXNL.pdf
http://www.airport-data.com/aircraft/ph ... 44806.html

bomber
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Re: Beagle Pup experiment

Postby bomber » Tue Nov 29, 2016 7:24 pm

ooooooh lovely thanks

Can I ask a question.. Is that the standard way of doing smoke, or was it just a quick n dirty to get me up and running ?

I ask because combat sim specialists would have refined smoke as it's extremely important to their simulation and if it's the standard way then I could help in getting the effect a lot better for less frame rate hits.

Particle animation was the first skill I was interested in at Targetware.
"If anyone ever tells you anything about an aeroplane which is so bloody complicated you can't understand it, take it from me - it's all balls" - R J Mitchell

sanhozay
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Re: Beagle Pup experiment

Postby sanhozay » Tue Nov 29, 2016 7:51 pm

The particle system is the only way I know to do it. You should read the notes at the top of the Wiki page and the persistent contrails link. It was only quick and dirty in the sense that I nicked it from another aircraft (737-100) and it may be configured (particle size and so on) for vapour rather than smoke. I think power stations, boats, some contrails, startup smoke and so on are all done with the same basic recipe. I kept the number of particles and lifetime reasonably conservative because it can have a frame rate impact.

bomber
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Re: Beagle Pup experiment

Postby bomber » Tue Nov 29, 2016 9:13 pm

The trick is not to use a single style but instead use multiple 'cheap' styles and to overlay one on top of each other... that way you build up the smoke with depth whilst not overpowering the machine
"If anyone ever tells you anything about an aeroplane which is so bloody complicated you can't understand it, take it from me - it's all balls" - R J Mitchell

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IAHM-COL
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Re: Beagle Pup experiment

Postby IAHM-COL » Tue Nov 29, 2016 11:28 pm

Bomber's Pup on an spinning run

Pictures by Bomber

Image

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Image
R.M.S.
If we gave everybody in the World free software today, but we failed to teach them about the four freedoms, five years from now, would they still have it? Probably not, because if they don’t recognise their freedoms, they’ll let their freedoms fall


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