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Post by rb211 on Apr 30, 2014 3:45:12 GMT
Upon takeoff I always trip the flap warning horn. I have flaps set using 15 or 25 depending on weight and fuel. I am using A CH Throttle Quadrant with a lever assigned to the flaps axis. What could be causing this. Do i have corrupt gau files? This also effects the 71 series panel as well.
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Post by aerofoto - HJG Admin on Apr 30, 2014 6:28:35 GMT
Using any of the HJG DC8 simulations .... only 2 conditions can/will trigger the flap warning horn on T/O .... as follws ....
- a "ZERO" flap setting/forgetting to select flaps
- Setting in excess of FLAP 25 (DC8-10-61)/FLAP 23 (DC8-62-63) for T/O .... and which are the maximum (recommended) T/O flap settings for these particular simulations.
It could be that the flap lever position selected on your CH THROTTLE QUADRANT is not being communicated correctly/precisely to FS in order satisfy the DC8 simulation that the correct/corresponding T/O flap setting has actualy being set.
Try using keyboard command []"F7"[/b] (in preference to your controller device lever) in order to select any T/O flap position between FLAP 5/7 and FLAP 23/25 .... is "the best I can suggest" you try.
I very much doubt your particular issue is the result of any gauge/file corruption, but, it could (likely) center aroun your controller device settings .... "I suspect".
There are certainly no known issues regarding T/O flap setting with any of the HJG DC8 series simulations .... provided the correct T/O flap settings are first successfully applied.
Mark C
AKL/NZ
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Post by christrott on Apr 30, 2014 15:42:13 GMT
Yes. All commercial transports have some sort of configuration warning system. It's been required as part of their certification since the 1970's. Some are more comprehensive than others, but the configuration warning system must warn of any condition whereby the throttles are advanced to the takeoff position with the aircraft on the ground and the aircraft is not properly configured for a safe takeoff. On the later MD-80, the system not only warns of the configuration error, but what in the configuration is wrong. I made a flight last night in the Leonardo MD-80 and forgot to set the Long Trim, which gave me a "Takeoff Trim" audible alarm. There's also one for flaps ("Takeoff Flaps") and slats ("Takeoff Slats") if they're not properly configured.
Even older airplanes have some warning systems. Most propliners have a gear warning horn that sounds if the gear and/or flaps aren't properly deployed and the throttles are retarded to idle while airborne for the same reason. There's not a takeoff configuration warning because with most propliners, the takeoff configuration is not critical and most have normal departure procedures without use of flaps, and trim on those airplanes is simply to alleviate the workload on the crew and can easily overcome in all but the most extreme circumstances.
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Post by aerofoto - HJG Admin on Apr 30, 2014 19:56:14 GMT
It's there all right .... BUT .... only if one's using the HJG supplied DC8 panels and gauges/core files .... which incidentally work in both FS2004 and FSX.
It's actually one of the "LOUDEST" alarms built-into these panels/simulations .... in that one certainly can't miss it that's for sure.
Some (not all though) HJG panels/simulations will also trigger an alarm if the trim setting is incorerectly set, but, this doesn't apply to/isn't featurede within any of the HJG DC8 simulations.
Mark C
AKL/NZ
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Post by christrott on Apr 30, 2014 20:20:49 GMT
Wow all that happened long before on board computers!! Thanks for interesting explanations, Christrott. Regards, Aharon What do you mean before onboard computers? There were mechanical computers on many airplanes since mid-WWII.  But the configuration alarms are very basic in design and have no need for computers, it's all relays and contacts. Very simple and reliable system. |
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Post by aerofoto - HJG Admin on Apr 30, 2014 22:01:10 GMT
I suspect (that for reasons of possible language limitations) what he probably meant to communicate was .... .... "before airliner flightdecks began to be equpped with more advanced or electronically based alerts/systems etc" .... probably of a type that's been developed since the mid 1960's .... is how I, personally, interpret his comment  Mark C AKL/NZ
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Post by christrott on May 1, 2014 1:12:21 GMT
Sorry, I was posting in a hurry. I meant to add a smiley at the end of the second sentence. |
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But the configuration alarms are very basic in design and have no need for computers, it's all relays and contacts. Very simple and reliable system.