Hey Guys! Im @ 8000 Feet with my 182 and she constanly get slower. First from 120-100knots. than from 100-80.. i have the autopilot active and she nearly stall O,O
Full throttel,
mixture about 45%,
Rpm at 2300,
cowlflaps closed
and i nearly drop´d from the sky!?
can anyone help?
Cruise speed drops with the time!?
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- A2A Major
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Re: Cruise speed drops with the time!?
What were the weather conditions?
Re: Cruise speed drops with the time!?
If your engine indications were good, then it probably is weather related, some kind of weird icing issue or something that FSX throws in.
I wonder if fuel injector icing can occur in Accusim, I believe not.
-Esa
I wonder if fuel injector icing can occur in Accusim, I believe not.
-Esa
Re: Cruise speed drops with the time!?
ok... i deactivate the real wather and chose a wether option from fsx. and now my speed is at 120knots indicatet and 160 over ground. I also change the prop..
absolutly no idea whats gonna on. Maby Prop Icing?
absolutly no idea whats gonna on. Maby Prop Icing?
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Re: Cruise speed drops with the time!?
FSX does have a simplistic ice modelling, which can be made more severe when using various real weather programs.
- Lewis - A2A
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Re: Cruise speed drops with the time!?
Yes FSX uses a realxed realism icing simulation. You should treat the Accu-sim aircraft as you would real aircraft, the GA aircraft are not all weather flyers. Watch that weather like a hawk as you would in the real world.
thanks,
Lewis
thanks,
Lewis
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Re: Cruise speed drops with the time!?
Lewis, and what kind of icing is simulated for 182T?Lewis - A2A wrote:Yes FSX uses a realxed realism icing simulation. You should treat the Accu-sim aircraft as you would real aircraft, the GA aircraft are not all weather flyers. Watch that weather like a hawk as you would in the real world.
Pitot tube blockage is obvious, but what else?
Artem Crum
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Re: Cruise speed drops with the time!?
We model the pitot icing, and while we do have an airframe icing system in Accu-Sim, it is not active.
Scott.
Scott.
A2A Simulations Inc.
Re: Cruise speed drops with the time!?
I see. Nice to know you have airframe icing in the works! Hope you'll enable it soon.Scott - A2A wrote:We model the pitot icing, and while we do have an airframe icing system in Accu-Sim, it is not active.
But then what did happen in Obi's case where he barely stalled? He says pitot heat was on and it seems like there was a real drop in speed not only indication.
Never met any similar problem yet, but it's quite interesting.
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- SkipperMac
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Re: Cruise speed drops with the time!?
Airframe icing, compliments of FSX With pitot heat on, the ASI was showing his actual IAS which, with the weight and drag of the ice accumulated on the airframe, would be much lower than normal cruise and would mean his stall speed was much higher than would normally be expected. Sadly, FSX has no in-built visual representation of airframe icing which you would normally see and rapidly descend to lower, warmer air to get rid rather quickly (if you were wise and not wanting to test the limits of the sim lol).crum wrote:But then what did happen in Obi's case where he barely stalled? He says pitot heat was on and it seems like there was a real drop in speed not only indication.
Never met any similar problem yet, but it's quite interesting.
Roll on the day when some developer works out how to 'show' airframe ice without totally destroying frame rates (compare the PMDG J41 for instance). A2A, are you facing up to the challenge? Seems that the 182 would be an excellent airframe to test it on
SkipperMac
i7 2600k @ 3.5GHz | Asus P8P67Pro Mobo | 8GB DDR3 RAM | nVidia 9800GTX+ 512 MB | 2 x 500GB Samsung SpinPoint F3 HDD| Xigmatek Midgard Pure Black case | Be Quiet Dark Rock Adv CPU cooler | Windows7 64bit
i7 2600k @ 3.5GHz | Asus P8P67Pro Mobo | 8GB DDR3 RAM | nVidia 9800GTX+ 512 MB | 2 x 500GB Samsung SpinPoint F3 HDD| Xigmatek Midgard Pure Black case | Be Quiet Dark Rock Adv CPU cooler | Windows7 64bit
Re: Cruise speed drops with the time!?
Some time ago I investigated FSX capabilities in airframe icing quite deeply and it's influence was so subtle (in most severe icing conditions), that it could not form enough amount of ice in reasonable time to make plane drop from the skies. So, I believe in this exact case there could be some other not so obvious effect.SkipperMac wrote:Airframe icing, compliments of FSX With pitot heat on, the ASI was showing his actual IAS which, with the weight and drag of the ice accumulated on the airframe, would be much lower than normal cruise and would mean his stall speed was much higher than would normally be expected
Artem Crum
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Re: Cruise speed drops with the time!?
What you might have considered severe icing conditions crum are not what the default system does. Its very rudimentary and also can be like the default recording system, it doesn't work but always works 100% of the time
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