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Unstick problem (Read 1074 times)

Dec 22^nd, 2009 at 4:48pm

RAFAIR100 Offline
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Posts: 217

Some time ago, I read a tip which detailed the parameter to 'tweak' in order to get an aircraft to unstick at roughly the correct speed. Can anyone give me a reference? I have one just now which doesn't look like it would ever unstick regardless of how much 'up' elevator and/or 'up' trim is applied. They just don't build runways long enough!

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Reply #1 - Dec 22^nd, 2009 at 9:33pm

BSW727 Offline
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I've never heard of that. Mine unsticks fine as long as I've done the calculations correctly.

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Reply #2 - Dec 23^rd, 2009 at 5:57pm

Capt.Propwash Offline
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Let's get a little mud
on the tires!
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did you tell the FAT@$$ back in 23B to get off the plane?? that might be the problem.

also, are you trying to take off with 100% fuel and an overload of luggage?

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Reply #3 - Dec 24^th, 2009 at 1:04am

Romflyer Offline
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Canada

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Make sure your auto pilot is off Shocked

Shocked

before you start your take-off roll

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Reply #4 - Dec 24^th, 2009 at 1:55am

garryrussell Offline
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Might help if you tell us what it is Cheesy

Cheesy

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Reply #5 - Dec 24^th, 2009 at 9:45am

Fozzer Offline
Colonel
An elderly FS 2004 addict!
Hereford. England. EGBS.

Posts: 24861

Romflyer wrote on Dec 24^th, 2009 at 1:04am:

Make sure your auto pilot is off Shocked

Shocked

before you start your take-off roll

...and don't forget to manually trim the Aircraft correctly for take-off.....Take a peek at your Elevator Trim Wheel setting.... Wink

Wink

....

Wink

....!

Paul...G-BPLF...FS 2004.... Cool

Cool

...!

Dell Dimension 5000 BTX Tower. Win7 Home Edition, 32 Bit. Intel Pentium 4, dual 2.8 GHz. 2.5GB RAM, nVidia GF 9500GT 1GB. SATA 500GB + 80GB. Philips 17" LCD Monitor. Micronet ADSL Modem only. Saitek Cyborg Evo Force. FS 2004 + FSX. Briggs and Stratton Petrol Lawn Mower...Motor Bikes. Gas Cooker... and lots of musical instruments!.... ...!
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Reply #6 - Dec 24^th, 2009 at 11:58am

olderndirt Offline
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Flying is PFM
Rochester, WA

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Posts: 3574

[quote author=RAFAIR100 link=1261518493/0#0 date=1261518493]Some time ago, I read a tip which detailed the parameter to 'tweak' in order to get an aircraft to unstick at roughly the correct speed. Can anyone give me a reference? I have one just now which doesn't look like it would ever unstick regardless of how much 'up' elevator and/or 'up' trim is applied. They just don't build runways long enough![/quote]If the nose doesn't start up where you're expecting, try another notch of flap as you're rolling to make it pitch up.

THIS IS NOT A PANAM CLIPPER

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Reply #7 - Dec 24^th, 2009 at 1:02pm

Fozzer Offline
Colonel
An elderly FS 2004 addict!
Hereford. England. EGBS.

Posts: 24861

My technique for quickly "unsticking" in my GA Piston Props, is to spin the Elevator Trim Wheel for a slight "nose-up" position, accelerate smoothly down the runway, and then apply one notch of Flap once up to speed...

This is often enough to catapult the Aircraft into the air, and climb all by itself, without any further assistance from me!...

...!

(Just remember to cancel the Flap(s) once in the Cruise).

Excellent technique for short-field take-offs!... Kiss

Kiss

...!

Paul...G-BPLF....FS 2004...

...!

Dell Dimension 5000 BTX Tower. Win7 Home Edition, 32 Bit. Intel Pentium 4, dual 2.8 GHz. 2.5GB RAM, nVidia GF 9500GT 1GB. SATA 500GB + 80GB. Philips 17" LCD Monitor. Micronet ADSL Modem only. Saitek Cyborg Evo Force. FS 2004 + FSX. Briggs and Stratton Petrol Lawn Mower...Motor Bikes. Gas Cooker... and lots of musical instruments!.... ...!
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Reply #8 - Dec 24^th, 2009 at 6:42pm

olderndirt Offline
Colonel
Flying is PFM
Rochester, WA

Gender:
Posts: 3574

Fozzer wrote on Dec 24^th, 2009 at 1:02pm:

My technique for quickly "unsticking" in my GA Piston Props, is to spin the Elevator Trim Wheel for a slight "nose-up" position, accelerate smoothly down the runway, and then apply one notch of Flap once up to speed...

This is often enough to catapult the Aircraft into the air, and climb all by itself, without any further assistance from me!...

...!

(Just remember to cancel the Flap(s) once in the Cruise).

Excellent technique for short-field take-offs!... Kiss

Kiss

...!

Paul...G-BPLF....FS 2004...

...!

Sounding more like a bush pilot all the time. All you need is a tailwheel and you're all set

.

THIS IS NOT A PANAM CLIPPER

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Reply #9 - Dec 24^th, 2009 at 7:08pm

Fozzer Offline
Colonel
An elderly FS 2004 addict!
Hereford. England. EGBS.

Posts: 24861

olderndirt wrote on Dec 24^th, 2009 at 6:42pm:

Fozzer wrote on Dec 24^th, 2009 at 1:02pm:

My technique for quickly "unsticking" in my GA Piston Props, is to spin the Elevator Trim Wheel for a slight "nose-up" position, accelerate smoothly down the runway, and then apply one notch of Flap once up to speed...

This is often enough to catapult the Aircraft into the air, and climb all by itself, without any further assistance from me!...

...!

(Just remember to cancel the Flap(s) once in the Cruise).

Excellent technique for short-field take-offs!... Kiss

Kiss

...!

Paul...G-BPLF....FS 2004...

...!

Sounding more like a bush pilot all the time. All you need is a tailwheel and you're all set

.

.....

Grin

....!

.....a Cessna 150/152 Tail Dragger!.... Smiley

....that's ma Boy!...!

Paul...G-BPLF....FS 2004....C150.... Cool

Cool

...!

Dell Dimension 5000 BTX Tower. Win7 Home Edition, 32 Bit. Intel Pentium 4, dual 2.8 GHz. 2.5GB RAM, nVidia GF 9500GT 1GB. SATA 500GB + 80GB. Philips 17" LCD Monitor. Micronet ADSL Modem only. Saitek Cyborg Evo Force. FS 2004 + FSX. Briggs and Stratton Petrol Lawn Mower...Motor Bikes. Gas Cooker... and lots of musical instruments!.... ...!
Yamaha MO6,MM6,DX7,DX11,DX21,DX100,MK100,EMT10,PSR400,PSS780,Roland GW-8L v2,TR505,Casio MT-205,Korg CX3v2 dual manual,+ Leslie 760,M-Audio Prokeys88,KeyRig,Cubase,Keyfax4,Guitars,Orchestral,Baroque,Renaissance,Medieval Instruments.

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Reply #10 - Dec 25^th, 2009 at 11:15am

olderndirt Offline
Colonel
Flying is PFM
Rochester, WA

Gender:
Posts: 3574

Fozzer wrote on Dec 24^th, 2009 at 7:08pm:

olderndirt wrote on Dec 24^th, 2009 at 6:42pm:

Fozzer wrote on Dec 24^th, 2009 at 1:02pm:

My technique for quickly "unsticking" in my GA Piston Props, is to spin the Elevator Trim Wheel for a slight "nose-up" position, accelerate smoothly down the runway, and then apply one notch of Flap once up to speed...

This is often enough to catapult the Aircraft into the air, and climb all by itself, without any further assistance from me!...

...!

(Just remember to cancel the Flap(s) once in the Cruise).

Excellent technique for short-field take-offs!... Kiss

Kiss

...!

Paul...G-BPLF....FS 2004...

...!

Sounding more like a bush pilot all the time. All you need is a tailwheel and you're all set

.

.....

Grin

....!

.....a Cessna 150/152 Tail Dragger!.... Smiley

....that's ma Boy!...!

Paul...G-BPLF....FS 2004....C150.... Cool

Cool

...!

With an O-320/150hp - what a two place - almost as lively as your bike

THIS IS NOT A PANAM CLIPPER

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Reply #11 - Dec 26^th, 2009 at 1:42pm

RAFAIR100 Offline
Colonel
I love YaBB 1G - SP1!

Posts: 217

Thanks to all who took the trouble to reply. Very interesting. Unfortunately, none told me where I might find the tip I referred to.

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Reply #12 - Dec 26^th, 2009 at 2:24pm

Fozzer Offline
Colonel
An elderly FS 2004 addict!
Hereford. England. EGBS.

Posts: 24861

[quote author=RAFAIR100 link=1261518493/11#11 date=1261852943]Thanks to all who took the trouble to reply. Very interesting. Unfortunately, none told me where I might find the tip I referred to.[/quote]

Which is the one and only Aeroplane that you are having trouble with?

...link to the Download...so that we can try it out, for any errors in the design...;)...!

Paul...G-BPLF...FS 2004.... 8-)...!

« Last Edit: Dec 26^th, 2009 at 6:17pm by Fozzer »

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Yamaha MO6,MM6,DX7,DX11,DX21,DX100,MK100,EMT10,PSR400,PSS780,Roland GW-8L v2,TR505,Casio MT-205,Korg CX3v2 dual manual,+ Leslie 760,M-Audio Prokeys88,KeyRig,Cubase,Keyfax4,Guitars,Orchestral,Baroque,Renaissance,Medieval Instruments.

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Reply #13 - Dec 26^th, 2009 at 4:37pm

olderndirt Offline
Colonel
Flying is PFM
Rochester, WA

Gender:
Posts: 3574

[quote author=RAFAIR100 link=1261518493/11#11 date=1261852943]Unfortunately, none told me where I might find the tip I referred to.[/quote]If it's not rotating at the calculated distance down the runway and your numbers are all good, it sounds like a CG problem and one of our more enlightened members can probably provide the fix.

THIS IS NOT A PANAM CLIPPER

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Reply #14 - Dec 27^th, 2009 at 2:12pm

Romflyer Offline
Colonel
Hello!
Canada

Gender:
Posts: 365

[quote author=RAFAIR100 link=1261518493/11#11 date=1261852943]Thanks to all who took the trouble to reply. Very interesting. Unfortunately, none told me where I might find the tip I referred to.[/quote]

Fozzer said it well when he said tell us about the plane you are having problems with.........however
I'm willing to bet money that you are fighting with an auto-pilot that won't let the airplane change elevation, so you are "stuck" at airport altitude, and no matter how much you pull on the stick, or trim on the trim, the auto-pilot says is holding your current altitude. So you need to ensure that the AP is off, then check that your trim is set to take-off (usually around 0,or +1) set flaps if required, then push forward on your throttle, wait for V2 and rotate......I bet that you will no longer be "stuck" on the runway.

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Reply #15 - Dec 27^th, 2009 at 7:55pm

Fozzer Offline
Colonel
An elderly FS 2004 addict!
Hereford. England. EGBS.

Posts: 24861

Providing that I select a runway suitable for the type of Aircraft I am flying, I have no problems taking off, providing that the Auto-pilot is switched off, and the Aircraft correctly Trimmed and centre of gravity allowed for, for take off.
The majority of the Aircraft I fly are General Aviation Piston Props, (the sort you learned you lessons on!), and having spent many years knowing how to fly them correctly, I now have no problems taking off and landing under most conditions....

...!

All the years of training (10+) in the Cessna 152/172/Beech Baron 58, etc, paid off well... Wink

Wink

...trust me!....!

Paul....G-BPLF...FS 2004..... Cool

Cool

...!

Dell Dimension 5000 BTX Tower. Win7 Home Edition, 32 Bit. Intel Pentium 4, dual 2.8 GHz. 2.5GB RAM, nVidia GF 9500GT 1GB. SATA 500GB + 80GB. Philips 17" LCD Monitor. Micronet ADSL Modem only. Saitek Cyborg Evo Force. FS 2004 + FSX. Briggs and Stratton Petrol Lawn Mower...Motor Bikes. Gas Cooker... and lots of musical instruments!.... ...!
Yamaha MO6,MM6,DX7,DX11,DX21,DX100,MK100,EMT10,PSR400,PSS780,Roland GW-8L v2,TR505,Casio MT-205,Korg CX3v2 dual manual,+ Leslie 760,M-Audio Prokeys88,KeyRig,Cubase,Keyfax4,Guitars,Orchestral,Baroque,Renaissance,Medieval Instruments.

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Reply #16 - Dec 29^th, 2009 at 1:31pm

RAFAIR100 Offline
Colonel
I love YaBB 1G - SP1!

Posts: 217

Thanks to all who responded to my original question - to which, incidentally, I still haven't had an answer. After 30+ years as a practising pilot, 8000+ hours, and 180+ types flown, I do know how to unstick an aircraft. Even on FS, I have about 20+ years experience. That stlll hasn't helped me to find the tip I was looking for.

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Reply #17 - Dec 29^th, 2009 at 1:38pm

Fozzer Offline
Colonel
An elderly FS 2004 addict!
Hereford. England. EGBS.

Posts: 24861

[quote author=RAFAIR100 link=1261518493/0#0 date=1261518493]Some time ago, I read a tip which detailed the parameter to 'tweak' in order to get an aircraft to unstick at roughly the correct speed. Can anyone give me a reference? [b]I have one just now which doesn't look like it would ever unstick regardless of how much 'up' elevator and/or 'up' trim is applied.[/b] They just don't build runways long enough![/quote]

Give us a link to this particular troublesome Aircraft, so that we can try it for ourselves, and confirm if it [i]really[/i] is a problem!

Paul...G-BPLF...FS 2004...FS Navigator...and a fully working set of Aircraft...;)...!

Dell Dimension 5000 BTX Tower. Win7 Home Edition, 32 Bit. Intel Pentium 4, dual 2.8 GHz. 2.5GB RAM, nVidia GF 9500GT 1GB. SATA 500GB + 80GB. Philips 17" LCD Monitor. Micronet ADSL Modem only. Saitek Cyborg Evo Force. FS 2004 + FSX. Briggs and Stratton Petrol Lawn Mower...Motor Bikes. Gas Cooker... and lots of musical instruments!.... ...!
Yamaha MO6,MM6,DX7,DX11,DX21,DX100,MK100,EMT10,PSR400,PSS780,Roland GW-8L v2,TR505,Casio MT-205,Korg CX3v2 dual manual,+ Leslie 760,M-Audio Prokeys88,KeyRig,Cubase,Keyfax4,Guitars,Orchestral,Baroque,Renaissance,Medieval Instruments.

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Reply #18 - Dec 29^th, 2009 at 2:43pm

olderndirt Offline
Colonel
Flying is PFM
Rochester, WA

Gender:
Posts: 3574

Now you've got me really curious. If, in spite of all your expertise, that sucker can't/won't fly sounds like a challenge - bring it on

.

THIS IS NOT A PANAM CLIPPER

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Reply #19 - Dec 30^th, 2009 at 7:32am

Fozzer Offline
Colonel
An elderly FS 2004 addict!
Hereford. England. EGBS.

Posts: 24861

olderndirt wrote on Dec 29^th, 2009 at 2:43pm:

Now you've got me really curious. If, in spite of all your expertise, that sucker can't/won't fly sounds like a challenge - bring it on

.

I can remember, some time ago, I downloaded an Aircraft, which no matter what I did correctly to make it take off from the ground, it just would not, ploughing through all the buildings and vegetation in front of me.... Cry

Cry

.....

...guess what I did to cure the problem... Wink

Wink

...

Wink

....

I deleted the Folder, found a similar Aircraft that worked, and got on with the rest of my life!.... Grin

Grin

...!

Paul.....G-BPLF....FS 2004....and lots of "flyable" Aircraft.... Kiss

Kiss

...!

Dell Dimension 5000 BTX Tower. Win7 Home Edition, 32 Bit. Intel Pentium 4, dual 2.8 GHz. 2.5GB RAM, nVidia GF 9500GT 1GB. SATA 500GB + 80GB. Philips 17" LCD Monitor. Micronet ADSL Modem only. Saitek Cyborg Evo Force. FS 2004 + FSX. Briggs and Stratton Petrol Lawn Mower...Motor Bikes. Gas Cooker... and lots of musical instruments!.... ...!
Yamaha MO6,MM6,DX7,DX11,DX21,DX100,MK100,EMT10,PSR400,PSS780,Roland GW-8L v2,TR505,Casio MT-205,Korg CX3v2 dual manual,+ Leslie 760,M-Audio Prokeys88,KeyRig,Cubase,Keyfax4,Guitars,Orchestral,Baroque,Renaissance,Medieval Instruments.

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Reply #20 - Dec 30^th, 2009 at 9:30am

olderndirt Offline
Colonel
Flying is PFM
Rochester, WA

Gender:
Posts: 3574

Fozzer wrote on Dec 30^th, 2009 at 7:32am:

olderndirt wrote on Dec 29^th, 2009 at 2:43pm:

Now you've got me really curious. If, in spite of all your expertise, that sucker can't/won't fly sounds like a challenge - bring it on

.

I can remember, some time ago, I downloaded an Aircraft, which no matter what I did correctly to make it take off from the ground, it just would not, ploughing through all the buildings and vegetation in front of me.... Cry

Cry

.....

...guess what I did to cure the problem... Wink

Wink

...

Wink

....

I deleted the Folder, found a similar Aircraft that worked, and got on with the rest of my life!.... Grin

Grin

...!

Paul.....G-BPLF....FS 2004....and lots of "flyable" Aircraft.... Kiss

Kiss

...!

Words of wisdom.

THIS IS NOT A PANAM CLIPPER

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