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Search: Posts Made By: timpara
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Forum: Rumours & News
20th Apr 2020, 12:31
Replies: 15
Views: 9,118
Posted By timpara

The X at the bottom left being coughin' corner?

The X at the bottom left being coughin' corner?
Forum: Tech Log
25th Aug 2016, 07:02
Replies: 8
Views: 4,503
Posted By timpara

Scifi wrote "...It will lose more lift than the...

Scifi wrote "...It will lose more lift than the Mainplane, and because of its moment-arm, will make the rear of the aircraft drop... This will cause a higher nose-up attitude, and is what creates...
Forum: Tech Log
24th Aug 2016, 13:12
Replies: 8
Views: 4,503
Posted By timpara

Zaphod Thanks for your reply, but I think part of...

Zaphod Thanks for your reply, but I think part of your statement is wrong.
"If you move the relative wind downward as it strikes the wing the angle increases"
If you add the downward pointing...
Forum: Tech Log
24th Aug 2016, 12:17
Replies: 8
Views: 4,503
Posted By timpara

Angle of Attack in Downdraft

In trying to understand wing behaviour in vertical windshear for a (minor) incident analysis, I thought I had it all sussed. However, I came across this in an Airbus Document 'Windshear Awareness'...
Forum: Rumours & News
20th Jan 2015, 14:21
Replies: 3,923
Views: 4,489,281
Posted By timpara

6000'/min is quite believable for an updraft....

6000'/min is quite believable for an updraft. Even paragliders have been known to climb at 4000'/min in quite modest Cb.
Forum: Rumours & News
4th Oct 2012, 15:23
Replies: 56
Views: 40,604
Posted By timpara

An organised trek would probably have luggage...

An organised trek would probably have luggage limited to ~15kg since porters will be carrying 3-4 clients worth of bags.
Forum: Tech Log
1st Aug 2011, 11:31
Replies: 3,435
Views: 1,673,948
Posted By timpara

Apologies if this article is already familiar in...

Apologies if this article is already familiar in this domain, but
The Case For An Angle Of Attack Indicator | Air Safety Week | Find Articles at BNET...
Forum: Tech Log
31st May 2011, 19:13
Replies: 3,435
Views: 1,673,948
Posted By timpara

Well they were descending, stalled at ~120 Knots...

Well they were descending, stalled at ~120 Knots with the AOA sensors exposed to the airflow, so the sensors should have been providing useful info. Can anyone explain therefore the logic in...
Forum: Rumours & News
25th May 2011, 15:57
Replies: 299
Views: 102,364
Posted By timpara

Pace wrote: Well I make each thimblefull equal...

Pace wrote:
Well I make each thimblefull equal to of the order of 10Kg per hour through each typical engine. But it's interesting to know, that you, as a pilot, are comfortable with that.
Forum: Tech Log
1st Jul 2009, 15:44
Replies: 125
Views: 46,432
Posted By timpara

Estimating the aerodynamical efficiency of the control surfaces

Re Hyperveloce's idea of using control surfaces as part of a backup aurspeed system: I'd been thinking along similar lines. But a simpler way to calculate airspeed might be to measure the pressure...
Forum: Tech Log
3rd Mar 2008, 13:09
Replies: 504
Views: 250,059
Posted By timpara

Since a gust is often just a parcel of higher,...

Since a gust is often just a parcel of higher, faster moving air coming down to the ground, then the "right-with-height" observation explains the veer.
Forum: Rumours & News
23rd Feb 2008, 15:30
Replies: 30
Views: 13,585
Posted By timpara

MY sister in law was on flight, PAX told to adopt...

MY sister in law was on flight, PAX told to adopt brace positions.
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