Examiners The Good The Bad the Ugly?

[gingernut]

"Is that an English or a Canadian Goose?"

"Where?"

"Engine failure!"


With hindsight, I think he was saying don't fly over Martin Mere 'cos it's restricted. Top fella'

[LH2]

Originally Posted by hugh flung_dung

IO ... if you had experience as an ME FI or FE you would have seen the typical stude's reaction to seeing the prop stopped

What is that reaction supposed to be? Mine was an ear-to-ear grin and the satisfying thought came to my mind that I could for the time being stop mucking with the levers attempting to sync the props... then the bastard on the right seat wanted it restarted.

[hugh flung_dung]

"What is that reaction supposed to be?" it's not "supposed" to be anything in particular; I was replying to IO's comment that "there is little point in training in cruise with the engine actually stopped".
Most stude's are slightly amazed that the aeroplane carries-on regardless and can be manoeuvred normally - a good demo that you can tell people anything but showing them has a bigger impact. There's almost always a grin, and frequently a desire to take a photograph of the stopped prop.

HFD

[IO540]

It sounds like that the stopped prop demo ought to be preceeded by a bit of ground school explaining how a plane flies, i.e. the engine doesn't do anything useful in a plane other than improve the rate of climb

[mad_jock]

O yes it does

Sodding great air brake.

[IO540]

I would call that a reduction in the rate of climb.

The plane still behaves as usual.

[S-Works]

No it does not. It creates a massive yawing moment as you lose 50% of your thrust and 80% of your performance. Made worse if its the loss of the critical engine on an aircraft without counter rotating props.

In a cruise or power of descent the effects are less noticeable but still present.

Edit: Mistoooks.

[IO540]

WOW I learn something every day on here. I thought the whole point of a twin was that you could shut down one motor to save petrol.

[S-Works]

WOW I learn something every day on here. I thought the whole point of a twin was that you could shut down one motor to save petrol.

Clearly with a comment like that....

The plane still behaves as usual

I've never had any real formal MEP training.

Perhaps pontificating on stuff you know about might be more in order then?

[mad_jock]

I wouldn't when I have to dump 100 knts to start getting the services out.

And it doesn't behave as usual it can have some quite marked changes in handling depending on type as bose says.

It takes a reasonable time before new FO's will dare to venture below 10-15% torque as they usually don't like it because it can bite thier arse in seconds. Once your used to it it can be a right joker card depending on the aircraft letting you get away with murder dumping altitude and speed.

[LH2]

Originally Posted by hugh flung_dung

There's almost always a grin, and frequently a desire to take a photograph of the stopped prop.

Guilty!

---

Excuse the pedantry, and I know you know, etc., but...

Originally Posted by bose-x

Made worse if it the loss of the critical engine on an aircraft without contra rotating props.

...you can still have a critical engine even with contra-rotating props (although I suppose strictly from a handling point of view it doesn't make any difference).

[S-Works]

Read what I wrote....... I will give you hint at the key words 'made worse'....

[youngskywalker]

Erm, should that not be a 50% loss of thrust but an 80% loss of performance?

And 'Counter rotating' as opposed to 'contra-rotating?'

Edited: BOSE-x you bugger, you've gone and corrected it and now my post looks pointless and that I'm not so clever!

[mad_jock]

Why would you care about how much thrust you loose you only care about performace?

All these V numbers actually mean something