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Search: Posts Made By: Machinbird
Showing results 1 to 17 of 17
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Forum: Tech Log
31st Mar 2012, 00:30
Replies: 251
Views: 63,690
Posted By Machinbird

It has been a few years since I roamed the high...

It has been a few years since I roamed the high altitudes with frequently unreliable radars in my military jet, and your statement is very true, but sometimes difficult to fully implement.

...
Forum: Tech Log
23rd Mar 2012, 01:08
Replies: 251
Views: 63,690
Posted By Machinbird

Technology of hydraulic cylinder position feedback.

Not quite, or at least not directly. Probably Rudder VDT.
Now what is a VDT? See this link for a clue Modern LVDTs in New Applications in the Air, Ground, and Sea | Sensors...
Forum: Tech Log
14th Mar 2012, 15:29
Replies: 251
Views: 63,690
Posted By Machinbird

Lyman, I know lawyers speak the way you speak all...

Lyman, I know lawyers speak the way you speak all the time, but would you mind writing in simple un-convoluted English for a change. It might help present your points more clearly. Choose simple...
Forum: Tech Log
11th Mar 2012, 21:12
Replies: 251
Views: 63,690
Posted By Machinbird

A33Zab can follow up if he wishes, but I think I...

A33Zab can follow up if he wishes, but I think I can answer this.

First, there are two heaters in the pitot tube, one for the pickup barrel of the tube, the other for the watertrap area of the...
Forum: Tech Log
11th Mar 2012, 21:02
Replies: 251
Views: 63,690
Posted By Machinbird

Mac, If you will recall, the statement about...

Mac, If you will recall, the statement about crazy speeds was likely not the result of the instrument displays, but from the noise of the turbulent flow around the aircraft (due to extremely high...
Forum: Tech Log
11th Mar 2012, 17:01
Replies: 251
Views: 63,690
Posted By Machinbird

Lyman, before you go traipsing too far off into...

Lyman, before you go traipsing too far off into engineering La La Land, let me point out that the aircraft control systems were functioning as designed later in the flight, that the control gains...
Forum: Tech Log
11th Mar 2012, 05:14
Replies: 251
Views: 63,690
Posted By Machinbird

Lyman, for an aircraft the size of the A330, the...

Lyman, for an aircraft the size of the A330, the initial roll and its successors was very rapid. The amount of aileron applied ensured continuation of a rapid roll rate.

There is no reason to...
Forum: Tech Log
11th Mar 2012, 01:08
Replies: 251
Views: 63,690
Posted By Machinbird

Lyman, take a look at this excerpt from the BEA...

Lyman, take a look at this excerpt from the BEA report.
Look at the yellow-amber colored stick move display. Do you see the head and shoulders pattern? Or the Big head, little head pattern. That...
Forum: Tech Log
10th Mar 2012, 22:59
Replies: 251
Views: 63,690
Posted By Machinbird

That is correct Lyman. PF's initial lateral...

That is correct Lyman. PF's initial lateral control inputs in the BEA 3rd report indicates that he was still using the 'pulsing' type technique of lateral control (That we have seen in a number of...
Forum: Tech Log
10th Mar 2012, 22:40
Replies: 251
Views: 63,690
Posted By Machinbird

This phrasing stands out as really unusual for...

This phrasing stands out as really unusual for pilots flying an aircraft. I'm wondering how much of this is from translation out of French, and how much is just plain FUBAR?
I would expect to hear...
Forum: Tech Log
6th Mar 2012, 02:35
Replies: 251
Views: 63,690
Posted By Machinbird

Sometimes you need a new approach when you...

Sometimes you need a new approach when you understand the real problem.

It find it very significant that 19 seconds of exposure to the ice crystals/pellets was sufficient to shut down the 3...
Forum: Tech Log
4th Mar 2012, 22:34
Replies: 251
Views: 63,690
Posted By Machinbird

Bubbers, Not up to your usual professional...

Bubbers, Not up to your usual professional standards to publish something like that "article" of unknown pedigree. :hmm:

For those wondering about the effects of "heating" the air, inside the...
Forum: Tech Log
4th Mar 2012, 19:57
Replies: 251
Views: 63,690
Posted By Machinbird

OK, I've had too many cups of coffee today, but...

OK,
I've had too many cups of coffee today, but another thought occurs.:}

To get more power into a pitot tube quickly, you could couple it up to a waveguide and 'nuke' it the same way we heat...
Forum: Tech Log
4th Mar 2012, 16:19
Replies: 251
Views: 63,690
Posted By Machinbird

You gentlemen are overlooking an important mode...

You gentlemen are overlooking an important mode of melting the ice/snow inside the probe.
Infrared radiation.
Some initial reading on the subject tells me that we are lining the interior of the...
Forum: Tech Log
4th Mar 2012, 02:09
Replies: 251
Views: 63,690
Posted By Machinbird

OK, Looks like I need to explain the situation...

OK, Looks like I need to explain the situation better.

One form of current stabilization (old fashioned now but I have used it in equipment) is the old fashioned wire wound ballast resistor. As...
Forum: Tech Log
3rd Mar 2012, 19:08
Replies: 251
Views: 63,690
Posted By Machinbird

My key takeaway from A33Zab's schematic is that...

My key takeaway from A33Zab's schematic is that there is no direct feedback from any of the probes controlling the power level. Temperature control is reactive rather than proactive. If there were...
Forum: Tech Log
3rd Mar 2012, 00:50
Replies: 251
Views: 63,690
Posted By Machinbird

Thank you for the schematic. Looks like the...

Thank you for the schematic. Looks like the probe temperature of the probe is controlled by the actual heater coil itself which is probably made like a an old style wire wound ballast resistor. The...
Showing results 1 to 17 of 17


 
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