Spitfire Mk. I tutorial movie by me

[Kupsised]

Originally Posted by Freycinet

This is very interesting and a good point. If my technique isn't really the right one, then it should be corrected!

- Can anybody else chip in?

Just did some quick tests (scientifically, both ways three times each) to get an average time on how long it took to recover from a self-induced spin (I put the throttle to idol, rudder hard over to the right, ailerons to the left and pulled back on the stick to induce the spin).

My way average recovery after three attempts was 9.83 seconds with the lowest being 9 seconds dead, middle was 9.7 and the highest was 10.8

Your way the average was 5.73 seconds, the lowest being 4.8, then 6.2 and 6.3.

Obviously there are too many variables to say that all 6 times were exactly the same spin, I tried to leave it spinning for around four seconds before trying to recover, but that probably wasn't pinpoint accurate at least. Either way, it'd seem your way is substantially quicker enough to say that, variables aside, it is probably still the quicker way considering how much quicker it was in the tests.

It would seem, then, scientifically (ish ) that your way is the better way, by about one third. Again, that's why these videos are so useful, you're always learning something new!

EDIT: And Nepe essentially confirms that, so I'll go with that way from now on. Thanks both!

[Freycinet]

Originally Posted by Kupsised

EDIT: And Nepe essentially confirms that, so I'll go with that way from now on. Thanks both!

Well, no. He says it should be rudder OPPOSITE rotation.

But thanks for testing. So, pretty convincing proof that rudder INTO rotation is faster.

Would very much like to know what official doc's say...

[Freycinet]

BTW, I seem to remember that I read rudder into spin in some official text, but now I can't recall the reference..

[robtek]

I learned in flight school that the rudder is used counter spin wise to stop the turning.
My tests in CoD confirmed that for me.

For the ailerons, in a spin there is no airflow over them because the plane is stalled.

Usually the rudder is the only working control in a spin, the elevators really start working when the spin is stopped and last the ailerons start to function when the plane is out of the stall

[Kupsised]

Ah, I think when I was doing it I had to put rudder in the opposite direction, that is, if I put the rudder right to put me in to the spin, I had to put it left to get me out of it. If I kept it right it never even started to recover before I hit the ground starting from fairly high up (whatever the altitude of the first default quick mission is, the free flight out over the sea). I'm not sure if that's what you mean by turning in to it? Since as I said, putting the rudder right if right rudder induced the spin doesn't have any effect at all for me. The way I just described it (rudder opposite to the direction that started the spin) has exactly the same effect that it had when you did it in the video, meaning the plane spins a bit more, but slower, then comes out quite quickly, the nose gives a little bob and the tail flicks a bit and then you can pull out, so perhaps that is what you were doing too? The other way just causes it to spin faster and the tail to buck around a bit but never shows any sign of recovery before, as I said, I ended up in the sea.

[ivo]

thank Freycinet it is very good thank a lot

Bye Ivo.

[2GFlea]

Here a copy/paste out of a Spitfire MkII manual...

Spit Spin.jpg

So it looks like the "official" Air Ministry way is opposite rudder. Sorry, I missed that Frey.

[bongodriver]

Ailerons can be quite significant to spin recovery, behaviour varies with aircraft but neutral aileron is the recommendation in all cases.

[Freycinet]

I actually now think that I applied opposite rudder in the movie. I have amended it to reflect that...

[robtek]

Originally Posted by bongodriver

Ailerons can be quite significant to spin recovery, behaviour varies with aircraft but neutral aileron is the recommendation in all cases.

My bad, for initial recovery, afaik, everything neutral except the rudder which is used counterrotationwise.

Some crates need quite a lot additional input, like extending flaps, releasing tip tanks or extending the gear.