Simviation Forums

I have downloaded the F-106A (from a well known designer!)
Nice model and the aircraft flies well.     Problem is that it won't slow down.      At 2000 feet, throttles closed, it cruises along at M0.9       The problem seems to stem from the engine rpm which stick at 65-68% no matter what one does with the throttles.    Makes for some exciting approaches!      Can anyone suggest how to get the rpm back to a realistic idle setting with throttles closed?

Without looking at the model you downloaded:

Close throttles
Shut down engines
Full flaps
Airbrake
Gear down
Point nose towards tarmac
Keep fingers crossed

The above not in any particular order...

Carlo

PS. Just kidding ofcourse. Pressing F1 (or F2, try it out) will close your throttles completely. Maybe that helps?

Without looking at the model you downloaded:

Close throttles
Shut down engines
Full flaps
Airbrake
Gear down
Point nose towards tarmac
Keep fingers crossed

The above not in any particular order...

Carlo

PS. Just kidding ofcourse. Pressing F1 (or F2, try it out) will close your throttles completely. Maybe that helps?

..I do all of the above...

...plus...I close my eyes, and think furiously of England!... .... ....!

Paul...I like Piston Engines....they close down quicker!... ...!

It is probably a case of the last flight you saved you were flying with this level of throttle whilst using the AP. It is a well known bug in FS9.
Try closing your throttle on your stick then pressing F1, this should close the throttle down.
Failing that just load a different flight, land it and close the throttle then save (make sure the autopilot is OFF)

Thank you Ozzy.    I'll try that next time out.     To the others, thanks but no thanks.

I close my eyes, and think furiously of England

As a person of the Scottish persuasion, I've done this most of my life

Ozzy,     I appreciate your suggestions.     Unhappily, neither option worked.    I still can't get the RPM down below 65%.     Can you suggest anything else?

Try "leaning the mixture".

Even though jet engines don't have mixture controls in the RW, they seem to in FS.

Press CTRL+SHIFT +F2 until right before the engine cutoff and see if that helps.

cheers,
Joe

I have two questions. Is this a a model native to FS9? Are you using a joystick and/or a throttle quadrant, or the keyboard for control?

Also a link to the model might prove helpful.

I'll be the first to say this.... that is normal idle for a jet engine!

That's how it appears to me too. Quick way of finding out is to try increasing the parasite drag figure in the [flight_tuning] section of the aircraft.cfg file from 1.0 (maybe start at 1.3 or 1.4), and see what effect it has when you idle the engines.

RAFAIR100, jets are just 'different.'

For a start, they're enormously streamlined. Beyond that, their ASIs - 'Air Speed Indicators' - 'under-read' at height, given that they work on air pressure. So a jet doing say 550 knots at 35,000 feet will only show say 275 on the ASI. The Mach. speed, on the other hand, is calculated taking air pressure into account - so it gives the 'true speed' expressed as a percentage of the speed of sound,

Even so, on a landing approach on ANY aeroplane, you should work on knots, NOT Mach. numbers.

Trick is, starting a landing descent, set the 'Speed Hold' to say 240 knots. That will probably be all of 500 knots at height, but it is 'self-adjusting' as you get lower, into thicker air.

Once down to approach height, say 2,500 feet AGL, set the airspeed to 140 knots and progressively add flap. 140 knots is just about the 'standard' landing speed for jets. You have to bear in mind that, being so streamlined, those things take absolutely AGES to slow down... :-)

More advice on here:-

http://205.252.250.26/cgi-bin/yabb2/YaB ... 1111322151

Go to /msdn.microsoft.com/en-us/library/cc526949.aspx#mozTocId136011  and look under "general engine data". You can set your "min_throttle_limit".
Also find "AirEd" in General Tools & Utilities, page 2 this will allow you to edit flight dynamics.  By George that should slow you down.

Dave 

RAFAIR100, jets are just 'different.'

For a start, they're enormously streamlined. Beyond that, their ASIs - 'Air Speed Indicators' - are hopelessly inaccurate, given that they work on air pressure. So a jet doing say 550 knots at 35,000 feet will only show say 275 on the ASI.....

Even so, on a landing approach on ANY aeroplane, you should work on knots, NOT Mach. numbers.

Trick is, starting a landing descent, set the 'Speed Hold' to say 240 knots. That will probably be all of 500 knots at height, but it is 'self-adjusting' as you get lower, into thicker air.

Once down to approach height, say 2,500 feet AGL, set the airspeed to 140 knots and progressively add flap. 140 knots is just about the 'standard' landing speed for jets. You have to bear in mind that, being so streamlined, those things take absolutely AGES to slow down... :-)

More advice on here:-

http://205.252.250.26/cgi-bin/yabb2/YaB ... 1111322151

Just wanted to clarify something you said.  Airspeed indicators in jets are not inaccurate, you are just talking about the difference between indicated airspeed, and true airspeed.  That is caused entirely because of the thinner air at higher altitudes, and would affect even a glider at high enough altitudes.  Even at under 10,000 feet, you could have a difference of several kts.  It isn't an inaccuracy, but just the way the system works.  In reality, indicated airspeed is good to know, even at high altitude, because the way the lower pressure affects the airspeed indicator, is the same that it affects the wings.  You will stall at the same indicated airspeed at any altitude, a good number to know.

Good point, davysims, careless phrasing - amended.