Simviation Forum - Shutting Engine off, Float Plane

Dec 9^th, 2006 at 6:31am

John Offline
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How do you shut engine off, Which keys ?

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Reply #1 - Dec 9^th, 2006 at 6:36am

an-225 Ex Member

Ctrl+Shift+F1 is the default cut off for all planes. It leans the mixture in a prop and cuts the fuel in a jet plane. M+-/+ also cuts fuel in a prop plane. But better to stick to Ctrl+Shift+F1. Wink

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Reply #2 - Dec 9^th, 2006 at 7:04am

Hagar Offline
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I've seen advice in another topic to shut off floatplane engines to help slow the aircraft after touching down on water. I'm no expert on this but I'm not convinced it's recommended procedure. It would be very difficult to steer or manoeuvre a floatplane on water without power & shutting it down could be dangerous, especially in rough or windy conditions. Various factors will affect the length of the landing run including the speed of the aircraft when it touches down. It will obviously take longer to stop in calm (no wind) conditions & at high touch-down speeds. You simply have to allow for this. In real life, propellers in fine pitch with the engine at low revs act like an airbrake & should help slow the aircraft down, both in the air & on the water.

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Reply #3 - Dec 10^th, 2006 at 2:23am

DaveSims Offline
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Quote:

. M+-/+ also cuts fuel in a prop plane. Smiley

Actually M just shuts off the magnetos, which is the ignition system in a piston engine plane. Which will stop the engine, but in real life isn't that good on the engine.

Dave

www.flymcw.com

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Reply #4 - Dec 10^th, 2006 at 5:52am

Fozzer Offline
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An elderly FS 2004 addict!
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DaveSims wrote on Dec 10^th, 2006 at 2:23am:

Quote:

. M+-/+ also cuts fuel in a prop plane. Smiley

Actually M just shuts off the magnetos, which is the ignition system in a piston engine plane. Which will stop the engine, but in real life isn't that good on the engine.

...quite right... Wink

...!

Grab hold of the red Mixture knob and pull it right out to stop the engine..."weak cut-off".
This reduces the mixture strength, (air/fuel ratio), and drains the remaining fuel from the carburettor(s).
Then switch the ignition switches to "off", which "earths" the Magneto's, preventing them from sparking!
Leaving the Mixture knob in the cut-off position also prevents accidental engine start-up if the Mag switches are left "on"... Shocked

...!
(But don't forget to push it back in, "Rich", before trying to start the engines, or else you will flatten the batteries trying to get the engine started)... Sad

...!
LOL...!

Paul...loves playing with his carburettor... Wink

...

...!

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Reply #5 - Dec 10^th, 2006 at 6:06am

Hagar Offline
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Fozzer wrote on Dec 10^th, 2006 at 5:52am:

Grab hold of the red Mixture knob and pull it right out to stop the engine..."weak cut-off".

So what happens when you don't have a mixture knob or lever? Tongue

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Reply #6 - Dec 10^th, 2006 at 6:26am

Fozzer Offline
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Hagar wrote on Dec 10^th, 2006 at 6:06am:

Fozzer wrote on Dec 10^th, 2006 at 5:52am:

Grab hold of the red Mixture knob and pull it right out to stop the engine..."weak cut-off".

So what happens when you don't have a mixture knob or lever? Tongue

...you drill a half-inch hole in the panel, fit a mixture control knob in it, (available from all good hardware stores), run a length of Bowden cable from the Mixture knob to the carburettor mixture lever.
Adjust the cable so that the Mixture knob operates the mixture lever from fully open to fully closed.
Problem solved... Kiss

...!

Paul... available to carry out the modification on site, at reasonable rates... Cool

...!

Why am I having to explain all this, Doug?...You are a bleedin' mechanic...do it yourself... Angry

...!

...LOL... Grin

...

...!

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Reply #7 - Dec 10^th, 2006 at 6:35am

Hagar Offline
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Fozzer wrote on Dec 10^th, 2006 at 6:26am:

Adjust the cable so that the Mixture knob operates the mixture lever from fully open to fully closed.
Problem solved... Kiss

...!

Paul... available to carry out the modification on site, at reasonable rates... Cool

...!

Why am I having to explain all this, Doug?...You are a bleedin' mechanic...do it yourself... Angry

...!

...LOL... Grin

...

...!

Just pointing out that not all aircraft engines have mixture controls. The mixture levers had been removed from all our club Tiger Moths. The shutting down procedure is simple: Mags OFF then immediately open throttle wide to prevent running on. Works a treat. I did this many times every working day for 2 years.

PS. I could show you plenty of cockpit photos of aircraft without mixture controls.

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Reply #8 - Dec 10^th, 2006 at 6:41am

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

Posts: 24861

Hagar wrote on Dec 10^th, 2006 at 6:35am:

Fozzer wrote on Dec 10^th, 2006 at 6:26am:

Adjust the cable so that the Mixture knob operates the mixture lever from fully open to fully closed.
Problem solved... Kiss

...!

Paul... available to carry out the modification on site, at reasonable rates... Cool

...!

Why am I having to explain all this, Doug?...You are a bleedin' mechanic...do it yourself... Angry

...!

...LOL... Grin

...

...!

Just pointing out that not all aircraft engines have mixture controls. The mixture levers had been removed from all our club Tiger Moths. The shutting down procedure is simple: Mags OFF then immediately open throttle wide to prevent running on. Works a treat. I did this many times every working day for 2 years.

PS. I could show you plenty of cockpit photos of aircraft without mixture controls.

...arse... Cry

...!

I think my attempts at my usual humourous posts are being wasted... Cry

...!
...it's not working... Cry

...!
...Buggar... Cry

...!
...and I was in a happy mood, too... Embarrassed

...!

Paul... Cry

...!

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 #9 - Dec 10^th, 2006 at 6:54am

Hagar Offline
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My Spitfire Girl
Costa Geriatrica

Posts: 33159

Fozzer wrote on Dec 10^th, 2006 at 6:41am:

...arse... Cry

...!

I think my attempts at my usual humourous posts are being wasted... Cry

...!
...it's not working... Cry

...!
...Buggar... Cry

...!
...and I was in a happy mood, too... Embarrassed

...!
Paul... Cry

...!

Never mind. I love you really. Kiss

Shutting down procedure depends on the aircraft/engine & they're not all the same despite what anyone might tell you. I didn't want people getting the wrong idea that's all. Wink

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Reply #10 - Dec 10^th, 2006 at 7:09am

an-225 Ex Member

LOL don't worry Fozzer your attempts at humor are not wasted. Wink

Keep 'em coming. Cool

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Reply #11 - Dec 10^th, 2006 at 9:18pm

Ravang Ex Member

Gender:

Hagar wrote on Dec 10^th, 2006 at 6:54am:

Fozzer wrote on Dec 10^th, 2006 at 6:41am:

...arse... Cry

...!

I think my attempts at my usual humourous posts are being wasted... Cry

...!
...it's not working... Cry

...!
...Buggar... Cry

...!
...and I was in a happy mood, too... Embarrassed

...!Paul... Cry

...!

Never mind. I love you really. Kiss

Shutting down procedure depends on the aircraft/engine & they're not all the same despite what anyone might tell you. I didn't want people getting the wrong idea that's all. Wink

Lol

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Reply #12 - Dec 16^th, 2006 at 9:43pm

jpw Offline
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I love YaBB 1G - SP1!

Posts: 51

I believe you need a stc for this, and the use of FAA approved parts. Grin

Fozzer wrote on Dec 10^th, 2006 at 6:26am:

Hagar wrote on Dec 10^th, 2006 at 6:06am:

Fozzer wrote on Dec 10^th, 2006 at 5:52am:

Grab hold of the red Mixture knob and pull it right out to stop the engine..."weak cut-off".

So what happens when you don't have a mixture knob or lever? Tongue

...you drill a half-inch hole in the panel, fit a mixture control knob in it, (available from all good hardware stores), run a length of Bowden cable from the Mixture knob to the carburettor mixture lever.
Adjust the cable so that the Mixture knob operates the mixture lever from fully open to fully closed.
Problem solved... Kiss

...!

Paul... available to carry out the modification on site, at reasonable rates... Cool

...!

Why am I having to explain all this, Doug?...You are a bleedin' mechanic...do it yourself... Angry

...!

...LOL... Grin

...

...!

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