Posts by larrylynx

ooooo errr that's a lot to get my brain around. but I will eventually

The lynx engine (Gem42) is a pretty elderly lady so fadecs were not on the scene, phew one less thing to worry about, a simple fuel_controller should be ok. Tweaking the values you mentioned should help. I have replicated the full fuel system and all values seem quite stable so will leave that in for the moment. DC and AC systems coming along nicely, In reality the Hyd packs and AC gens are mounted to the front of the gearbox, driven by either engine through some free wheels etc, would this be possible with the heli system

I still need some form of output shaft to link it all to, ie a main gearbox/rotor system. I guess this controls the torque output as well which is why they max out on the gauge.

Thanks again, steve

legs were hanging in the air and her elbow was poking through the door ?????

Not sure what you had planned , was it legal

My guess is you will need Max to make any mods without a lot of trial and error as moving one axis will move all the others in the chain to places you will not expect, hence, some questionable poses

Steve

Hi Jan

Yet more questions.

I have fully working engines and a fuel system that behaves itself. Electrics are mostly there too, yep. I'm shocked too

Could you explain the entries in the fuel controller please, pretty please

Are engine values fixed or do the entries above cause things like ITT values to alter. Main reason for this is gauges are reading different values from monitored values, so is it just down to mapping or a combination of both.

I have found it necessary to have a condition lever, after many hours of the engines refusing to start I un-commented this and boom, the engine burst into life. Heli's don't have a condition lever, hence why I left it out, so I linked it to the throttle mapping for now. Of course output is a magical mystery tour for the moment as I don't have a rotor system till you let me see the heli TMD setup. I have linked it to a prop with a small mass (1.0) for now. This was causing the 102 second reset, it didn't like the c90gtx mass (50.0) for some reason

Also, there is a pronounced ITT jump of 400 degrees plus during engine start, pretty much an instant jump, and then it settles back. This doesn't seem natural and not something I have ever witness in real life. Yes I know combustion takes place but real life gauges never jump like this, it's a lot more controlled so can this be tamed down

Many Thanks, Steve

Hi jan

Quick update as I answered most of my problems

Changing Station numbers seem to be ok, I just needed to make sure to re-number them correctly. I had 2 combustion (burner) numbers the wrong way round causing the burner to self feed, so the ITT kept climbing. Although the engine loads as running it shuts down immediately as all the switches are set for cold and dark. So would still like to load the engine in a shut down state.

Sim still resets after 100 seconds so more investigation needed

Steve

HI jan

Is it ok to renumber the engine stations. I have renumbered from 2 to 8 to be in line with the diagram I am using. no other reason but wondering if the sim expects the numbers you have in the Q400

Also after 100 second's the sim reloads the aircraft. The ITT seems to be running away so I'm assuming at this stage its reaching a maximum value and the sim re-loads, everything else is running down ? . Only guessing at the moment. No problems reported in the TM.log, just a reposition and settling as normal.

How can I make the aircraft load with the engines shut down. I tried to change the rotation speed to 0.0 but this just froze the aircraft, sim still running as I could esc out to the aircraft load screen no problems.

Thanks, Steve

Hi jan

I have a 2 fuel collector tanks (left and right) which have inputs from their main tanks (left and right for each tank) and a forward tank which supplies both collector tanks through on/off switches ( easily left off as I know through experience )

Is it possible to add forward fuel to each collector from the single tank or would it be easier to cheat and add a left and right forward tank. Also, can the collector tank have more than one input in the tank entry similar to a fuel line connection, ie 2 pressures and 2 add flow or do we need to add a fuel line connection somewhere into the mix even though the tank itself doesn't really have one

I have also noted that you use new entries in the tank section

<[float64][MassFull][193.0]>

old entries used to be

<[float64][MaximumQuantity][377.0]>

Are these interchangeable

Steve

Thanks for the info, so rotation speed would be equivalent to ground idle

Hi Jan

Whats the difference between

<[float64][RotationSpeed][2090.0]>

<[float64][DesignRotationSpeed][3927.0]>

<[float64][DesignRotationSpeed][3927.0]>

They all refer to the HP spool.. Top one refers directly to the HP Spool and the middle one refers to the turbo_compressor and the bottom one to the turbo_turbine

As they all refer to the same shaft I would have thought the HP Spool would be the same number as the other 2

Thanks

Steve

Looking great Kai, now I know who to contact for my Lynx textures...

already reached that one

He who waits will be rewarded

One day I will get access to the heli tmd and the new engines, until then I plod on

Greetings Master Obi Jan

Thanks for the explanation. I guess my post was more confirmation as how to arrange the axis as we don't have a heli tmd I can work from. Flapping hinge properties ? is this a heli tmd feature or or just the usual hinged body

The main rotor should be easier as we don't have any flapping hinge to worry about as that is achieved by the flex in the titanium hub. I guess we could include wing flex but that might be over complicating things

Steve

Hi Jan

Some advice needed on hinge/axis setup.

The Lynx tail rotor has a flapping hinge and pitch rotation as shown in the screen shot. We also have the pitch change rods and the pitch change mechanism. Where do we put the hinge axis for these. Also

Does any of these get carried over when the whole lot is rotating or is it only for static animation

Thanks Steve

Hi Jan

To be honest we vary rarely used the drift gauge, perhaps at night to aid with a high hover it would have been more use to Navy pilots.

The gauge receives it's info from, pitot pressure and static, plus a doppler based measuring system. It was only effective at bank angles less that 20 degrees as the doppler would go into memory mode (most of the time for us). The only time we ever did less than 20 degrees of bank was probably hovering, more like 50 to 70 was the norm.

I would guess that depending on the selection in the TANS (Tactical Air Navigation System) it would be a mixture of both. From memory I think the knots readout also does backward and sideways component flying

Steve

Hi Jan

I need to input groundspeed and drift angle to a gauge.

I can see PitotTube.GroundSpeed and both PitotTube.WindSpeed plus PitotTube.WindDirection as outputs in the Q400. Is It ok to use these as they stand or do I need to do anything else.

Of course I can't test anything as I am still awaiting shipment of my engines. Will they be based on the q400 ?

Steve

Hi Jan

Thanks for looking though the code. A bracket count on both TMD files shows no problems. I always edit the live TMD's

Strange thing is, I used the same code for the pilots and Pax comm boxes, changing names and locations, and it all works perfectly. So I copied this code back to the co-pilots box and the same 4 knobs still refuse to work. It's like there is a black hole in the cockpit where things just stop. Any one seen a towel .....

Steve

They started working.........Didn't adjust anything....they just started when I sat in pilots seat

HI Jan

Would you be so kind as to look at the coding in the zip file.

It's simply rotating knobs. One works the other doesn't yet it's the same code. I have tried various control messages but still the same error, the UHF knob refuses to work ( no sound or knob movement) If I link the graphics to the VHF output both knobs move simultaneously. I also tried the knob next to the VHF (TAC1) and its the same problem. The selctor below works fine

As there are 3 of these boxes and the smaller ones below I really need this to work, not that they will do much but users like to see knobs and switches move

Many Thanks

Steve

Jan....That's the best bit of news I have read in a very long time

Morning Jan

Couldn't find an obvious error so decided to re-write the UHF code from scratch and it now works. Obviously a bracket, spelling or dot thing going on but I couldn't see it.

UHF radio is there because users will want to see the numbers going round, it makes them think we have UHF. I had planned for numerical displays but try as I might I couldn't get them to show, no errors in the sim just no display, perhaps an electrical thing going on there. Will need to correct this as I hope to have the TANS displays working one day.

Saitek Panels....., not even added Sender stuff yet.. Already have NAV1, COM1 and now UHF1. Will the introduction of UHF 1 interfere with COM1

Thanks again

Steve