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Post by Tom/CalClassic on Dec 23, 2008 11:55:01 GMT -5
And you'll need to do that at altitude to go to high blower or you will have little power...
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Post by johnhinson on Dec 23, 2008 12:03:58 GMT -5
Thanks, Stefan, I was using that icon to set them but as I said they jump back as soon as I use the start switch.
My automixture setting is always off/unchecked but I was referring to the settings in the aircraft.cfg.
It is no worry, I can survive on using M== in sequence but I'm intrigued that others are able to do what I cannot.
Best wishes,
John
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Post by emfrat on Dec 23, 2008 15:14:53 GMT -5
Cheers, John - I haven't seen this with the Connies, but I do get it with the DC6 and 7. (KMCC panels) I set my CH Quadrant mixture lever to full rich, and the lever on the panel moves also, but as soon as I use the starter, the panel lever goes back to idle cutoff. I work around it by leaving the mixture at cutoff, then after the blade count, I move it to full rich and off she goes. I have never managed to turn the mags on without the starter stopping, so I leave them set at 'both'.
The 2.1 Starliner is magnificent, but at the moment I have uninstalled it pending a fresh install. As far as I can see, it is deploying an 'invisible' spoiler and as a result will not get over 150kts, even with half fuel and everything cleaned up. Very frustrating, but I will track down the cause. Chief suspect is a clash between the CH cowl flap switch increment and the 5% one in the Starliner panel. It is certainly something in the startup/takeoff phase - if I start with the default flight, switch to the Starliner, and end that flight there, the previous flight file shows Spoiler Handles, Left Spoiler and Right Spoiler = 000.00. When I end the flight after struggling off the ground, the values are 050.52 (not certain on the decimals, but 050 for sure).
All the best MikeW
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Post by sunny9850 on Dec 23, 2008 19:32:25 GMT -5
John: Do you have one or more levers assigned to the mixture(s) If yes then I would suspect that this is where the problem comes from. To test that theory I would remove that axis assignment temporarily at least and see if she then behaves normal. Another option if you have a registered copy of FSUIPC is to use that program for the axis calibration. I use Saiteks latest ProFlight Yoke and an additional quadrant and always leave about 5% of the stroke at each end as a buffer...so that 95-100% stroke always equal 100% Rich. Because if there is even the slightest flicker in the axis the sim will position the levers according to the hardware and not the SM or even the virtual levers. The other thing to look for may be if you have any "old" L1649A.cab files anywhere in the FS structure....sometimes the sim seems to be lazy and open the first file with a name and not really the one you might want. Mike: Initially the same test...axis mis-behaviour can cause strange effects. I would probably eliminate all axis assignments and check cowl flaps at 30% for takeoff....and then use the VCs throttle levers (just to the right of the 4 black levers is a red one called "throttle lock" which links all 4 engines) And definitely make sure that all the v2.1 files are in the correct places from the readme...and no old same name files are accidentally loaded. The older versions used a "hidden drag" value to keep things in check speed wise....this has been largely eliminated in V2.1 or accomplished in a much more elegant and unintrusive way.
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Post by emfrat on Dec 24, 2008 5:23:58 GMT -5
Danke schoen, Sunny -
I will test as you suggest. The thing is, I already have my CH Yoke/Pedals/Quadrant setup mapped through FSUIPC. Every lever etc in the 2.1 Starliner responds as it should to my controller inputs; I take great care to avoid excess revs as the engine fires up, and make sure I don't exceed 2900 in the takeoff; the Status window shows I am getting the correct outputs for takeoff and METO power settings - but the thing just will not get to the 140kts I need to retract the flaps. So I retract them anyway and it might then get to 150 kts, but that's it.
Puzzles are a traditional part of Christmas - leave this one for now, and enjoy the holiday. All the Best MikeW
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Post by johnhinson on Dec 24, 2008 10:38:23 GMT -5
John: Do you have one or more levers assigned to the mixture(s) If yes then I would suspect that this is where the problem comes from. To test that theory I would remove that axis assignment temporarily at least and see if she then behaves normal. Another option if you have a registered copy of FSUIPC is to use that program for the axis calibration. I use Saiteks latest ProFlight Yoke and an additional quadrant and always leave about 5% of the stroke at each end as a buffer...so that 95-100% stroke always equal 100% Rich. Because if there is even the slightest flicker in the axis the sim will position the levers according to the hardware and not the SM or even the virtual levers. The other thing to look for may be if you have any "old" L1649A.cab files anywhere in the FS structure....sometimes the sim seems to be lazy and open the first file with a name and not really the one you might want. Alas I'm one of those poor people that survives on a joystick and keyboard - perhaps Santa will fix that for me, ha ha! I control the mixture levers using keyboard, mouse or that icon, so I don't think that is the issue. I've done a quick look for old gauges but will look again deeper later. But as Mike says, this isn't the time of year for you to waste time worrying about trivialities of this sort, and it isn't anything crucial enough to stop me enjoying flying the Starliner. Look! Tom has even awarded me the Grand Order of the Starliner under my username! With best wishes, John
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Post by Tom/CalClassic on Dec 24, 2008 10:50:46 GMT -5
Welcome to the Starliner clan (more than 250 posts).
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Post by sunny9850 on Dec 24, 2008 22:14:31 GMT -5
Mike: If you are getting MAP 57-58" and 2600-2900 RPM even with cowl flaps wide open she should easily get above that speed once the wheels are up. I know because I did that just yesterday as I was doing some performance tests for the new tables Howard is creating....and I had re-do one of the TOW cycles because I realized the error half way through the climb. Let's try this....NOT AS A FIX...only as a test to see if Spoilers have anything to do with the problem since you mentioned them in an earlier post. 1. Make a back-up of your original aircraft.cfg file so you can go back to it later. 2. Double check that you made the back-up 3. Open the aircraft.cfg in a text editor and find the following lines in the [airplane geometry] section about 2/3s down the file: ~ spoiler_limit = 70.000 <<<<< ----- Change this one to = 00.001 aileron_to_spoileron_gain = 0.000 spoiler_handle_available = 1 // HJN 0503 min_ailerons_for_spoilerons = 0.000 min_flaps_for_spoilerons = 0.000 spoilerons_available = 0 auto_spoiler_available=0 spoiler_extension_time=8.000000 positive_g_limit_flaps_up=4.068376 positive_g_limit_flaps_down=2.000000 ~ 4. Make the change at the line with the <<<<< and save the file and give her a testflight. IF she flies ok now at least we'll know something triggers the spoiler drag. But normally you would see the main wheels hanging in the breeze then...but who knows. The only other thing I can think of is that despite getting the correct RPMS your prop pitch is actually not correct....but I'll try that on my end and see if I can re-create it. John: Congrats on the upgraded status.....I am quite a few away from that holy grail ;D If you are not using hardware for the mixtures I am baffled what could be moving them. I did experiment a little the other day and I have found that on one occasion at a standard day setting 15C / 29.92" #3 did not want to start and did give me the "correct" but curious indication to check mixture position via the Tooltip after setting them via the SM icon in the first place. I reduced the #3 mixture towards lean using the mouse in this case, re-checking the tooltip ever so often and about at the AUTO LEAN position #3 was found to be happy...and started right up. The other three engines however were immediately happy with the initial position. Since I only managed to get that situation once....and was admittedly not following the checklist I'll have to experiment a bit more to come up with a possible error in my flow. Then again....my real Saratoga only has one IO-540 on it....and sometimes she just doesn't feel like starting again for a second flight in one day Usually that happens only at the very busy Camarillo ramp on a Saturday after a $200 Tri-Tip Lunch....when everyone is looking. But after threatening to trade her for any Cessna product she can usually be convinced to roar to life. Edit: Ooooops totally fogot....Merry Xmas to each and everyone of you here. May 2009 be a much better year for all of us.
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Post by emfrat on Dec 25, 2008 2:50:54 GMT -5
Cheers, Sunny - Funnily enough, my first thought was "if this was a boat I would think the prop was cavitating" Before I removed the Starliner, I tried REMing out the Spoiler Handle Available line ( no success), and I had noticed the earlier Starliner had the Spoiler Limit =60, but hadn't got to that yet - one change at a time for these things is a must. After a fresh install this morning (once I had deleted anything with 1649 in it, including what I later realised was an AI plane) I went through the FSUIPC calibrations and assignments and re-did them, and discovered I had ticked both the "Map to" options, when I should only have had 'Map 1 to 1 and 2, 2 to 3 and 4' . Fixing that didn't change anything, either. I will set the spoiler_limit parameter to the minimum you suggest, and see what happens. Thanks for your help - but please, just make sure your family and Christmas come before my minor technical probs All the best to you and yours MikeW
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Post by emfrat on Dec 25, 2008 5:03:36 GMT -5
Sunny - I tried your suggestion and it worked beautifully. I tried to update my earlier post to say so, but I musta pushed a wrong button somewhere. Out of SeaTac, my Starliner now reaches V1 at a sensible distance, and after I rotate I am soon in trouble trying to hold the thing back. No visible sign of any unwanted drag-producing bits. I engaged the AP and climbed to 12500. Stabilised on that, then disengaged the AP, cut power and deployed the speed brake. Worked just like a real one, and when the speed came down I deployed the u/c and retracted it - once again, just like a bought one. The only different thing I noticed was that my CH Quad cowl flap inc/dec switch is now working in 5% steps, just like the CF icon on the panel. This Granpa is now very happy his best toy is working properly, but from my time as a SysAdmin, I have never been happy with a fix which still left me wondering about the cause.
Once again, many thanks. Now please stop worrying about me and enjoy your Christmas break. Cheers MikeW
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Post by emfrat on Jan 4, 2009 4:20:57 GMT -5
Hi Stefan, John - Just to let you know the final result. Once I applied Stefan's suggestion, I was able to get off the ground properly and do some testing (and learning). Right at the start of this saga, I suspected an 'invisible spoiler'. I knew I had the CH Yoke Throttle lever assigned to the spoiler, so I unassigned that axis, and checked all the other axes to make sure they were assigned to what they should have been. When I tested the speed brake after applying Stefan's suggestion, I was at 12500 and the aircraft slowed when I cut the throttle - not a lot, but it did slow and once I deployed the speed brake, it was not long before IAS was low enough to lower the gear and retract it safely. However, when I attempted a descent from FL215, there was no useful slowing when I reduced MAP, and even hand-flying with a high angle of attack, it was clear that there was nothing like proper drag being created. Reset the spoiler_limit parameter to 70, and got my invisible spoiler back. So I checked the FSUIPC axis assignments again, and just by way of "checking manually that my mouth was open before inserting the toothbrush", I also checked the calibrations - and found that a spoiler axis was calibrated even though I no longer had any of the axes assigned to a spoiler I reset the calibration and left it unprocessed. Took off again and found the Starliner is now flying as the designers intended. Many thanks for your help, Stefan ;D One extra-happy Granpa.
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Post by sunny9850 on Jan 4, 2009 11:39:54 GMT -5
Glad to hear that Mike. Given the amount of test flights that were made prior to the release of 2.1 it just had to be something of that nature. One more note though on the Speedbrake. As mentioned before in the Starliner you have to add Emergency to that name. It is not the same thing as the hydraulically actuated panels on a modern jet's wings or the flow disruptors on some of the sleeker GA airplanes.
In general you want to fly the Starliner in a way that you never need the speedbrake at all.
Stefan
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Post by emfrat on Jan 4, 2009 16:19:37 GMT -5
My sentiments exactly..... ;D MikeW
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Post by chris_c on Jan 4, 2009 16:57:07 GMT -5
Stephan wrote:
Am very glad to read this since I have never had occasion to require the speedbrakes in any Starliner flight to date. With all of the discussion on them I was starting to think that I was doing something wrong when I fly her.
Chris
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