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Search: Posts Made By: BOAC
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Forum: Questions
5th Aug 2013, 14:24
Replies: 50
Views: 9,379
Posted By BOAC

It does.....

It does.....
Forum: Questions
5th Aug 2013, 11:12
Replies: 50
Views: 9,379
Posted By BOAC

- not from an engineer's point of view, I...

- not from an engineer's point of view, I appreciate, but for a pilot (which I assume the OP is) to know how you can achieve the max permitted is really quite useful.

Now, if the mods will accept...
Forum: Questions
4th Aug 2013, 20:12
Replies: 50
Views: 9,379
Posted By BOAC

Come on - don't be shy - we want to know the...

Come on - don't be shy - we want to know the numbers.
Forum: Questions
4th Aug 2013, 16:24
Replies: 50
Views: 9,379
Posted By BOAC

- I have no reason to question JT's figures for...

- I have no reason to question JT's figures for that flap setting in a 727, but:
1) Add at least 20% (probably more) drag to go to full flap (40) from 'approach flap' ((? 5? ?15? )
2) Reduce speed...
Forum: Questions
4th Aug 2013, 09:02
Replies: 50
Views: 9,379
Posted By BOAC

A guess - 1000fpm'ish. How will this help mamad?

A guess - 1000fpm'ish. How will this help mamad?
Forum: Questions
4th Aug 2013, 08:48
Replies: 50
Views: 9,379
Posted By BOAC

No idea - what speed?

No idea - what speed?
Forum: Questions
4th Aug 2013, 07:02
Replies: 50
Views: 9,379
Posted By BOAC

See post 4?

See post 4?
Forum: Questions
3rd Aug 2013, 16:44
Replies: 50
Views: 9,379
Posted By BOAC

NB JT's 1/1000 is based on approach flap not...

NB JT's 1/1000 is based on approach flap not full, so may well be closer to my figure.
Forum: Questions
31st Jul 2013, 07:41
Replies: 50
Views: 9,379
Posted By BOAC

I agree with your caution but better to know how...

I agree with your caution but better to know how to do it when it happens, and it does.
Forum: Questions
30th Jul 2013, 20:39
Replies: 50
Views: 9,379
Posted By BOAC

- see posts 2 and 4. The normal max in most...

- see posts 2 and 4. The normal max in most airlines is 3000fpm within 3000' ft of MSA. The only way of achieving that without accumulating too much KE is as described.
Forum: Questions
30th Jul 2013, 17:38
Replies: 50
Views: 9,379
Posted By BOAC

I don't understand the point you are making. Over...

I don't understand the point you are making. Over 27 seconds it went from a 3 degree Vref approach to a stall. There is no way you can get anything from an 'average' RoD. Show a plot at 27x1 second...
Forum: Questions
30th Jul 2013, 16:59
Replies: 50
Views: 9,379
Posted By BOAC

Remember they started 'on the glidepath' so the...

Remember they started 'on the glidepath' so the rate would be building - and I'm afraid I don't think your calculation is meaningful.
Forum: Questions
30th Jul 2013, 15:19
Replies: 50
Views: 9,379
Posted By BOAC

HN39 - it is about 4-5 times the normal ILS...

HN39 - it is about 4-5 times the normal ILS slope. I call that steep. The difference is this is planned, THY was not.
Forum: Questions
30th Jul 2013, 11:23
Replies: 50
Views: 9,379
Posted By BOAC

Gear and full flap will allow 3000fpm (normal...

Gear and full flap will allow 3000fpm (normal operating limit) at around 140kts groundspeed. You can work it out.
Showing results 1 to 14 of 14


 
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