Shutting Engine off, Float Plane

[John]

How do you shut engine off, Which keys ?

[an-225]

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. [smiley=thumbsup.gif]

[Hagar]

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.

[DaveSims]

. M+-/+ also cuts fuel in a prop plane. [smiley=thumbsup.gif]

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.

[Fozzer]

. M+-/+ also cuts fuel in a prop plane. [smiley=thumbsup.gif]

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... ...!

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"... ...!
(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)... ...!
LOL...!

Paul...loves playing with his carburettor... ... ...!

[Hagar]

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?

[Fozzer]

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?

...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... :-*...!

Paul... available to carry out the modification on site, at reasonable rates... 8-)...!

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

...LOL... ... ... ...!

[Hagar]

Adjust the cable so that the Mixture knob operates the mixture lever from fully open to fully closed.
Problem solved... :-*...!

Paul... available to carry out the modification on site, at reasonable rates... 8-)...!

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

...LOL... ... ... ...!

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.

[Fozzer]

Adjust the cable so that the Mixture knob operates the mixture lever from fully open to fully closed.
Problem solved... :-*...!

Paul... available to carry out the modification on site, at reasonable rates... 8-)...!

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

...LOL... ... ... ...!

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... ...!

I think my attempts at my usual humourous posts are being wasted... ...!
...it's not working... ...!
...Buggar... ...!
...and I was in a happy mood, too... ...!

Paul... ...!

[Hagar]

...arse... ...!

I think my attempts at my usual humourous posts are being wasted... ...!
...it's not working... ...!
...Buggar... ...!
...and I was in a happy mood, too... ...!
Paul... ...!

Never mind. I love you really.

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.

[an-225]

LOL don't worry Fozzer your attempts at humor are not wasted. Keep 'em coming.  8-)

[Ravang]

...arse... ...!

I think my attempts at my usual humourous posts are being wasted... ...!
...it's not working... ...!
...Buggar... ...!
...and I was in a happy mood, too... ...!Paul... ...!

Never mind. I love you really.

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.

 ::)
Lol  ;)

[jpw]

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

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?

...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... :-*...!

Paul... available to carry out the modification on site, at reasonable rates... 8-)...!

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

...LOL... ... ... ...!