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Search: Posts Made By: gums
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Forum: Tech Log
8th Jul 2011, 06:00
Replies: 1,069
Views: 279,614
Posted By gums

Control stick, AoA, autothrust in lites

Salute!

Thanks to EMIT, thanks.....

- The transition from a big stick or yoke to the "force" transducers was very easy. Like about 3 or 4 seconds on first flight. Put some pressure on the...
Forum: Tech Log
6th Jul 2011, 04:54
Replies: 1,069
Views: 279,614
Posted By gums

aircraft are aircraft. even drones are aircraft

TNX for nice words, PJ.

I only jumped in here because I am now a SLF and it's really hard to "ride" when I see things happening and wonder what in the hell the troop up front is doing, or is...
Forum: Tech Log
5th Jul 2011, 19:02
Replies: 1,069
Views: 279,614
Posted By gums

THS trim, one mo' time

To Doze, et al.....

I see a sub-mode of all the plethora of laws that implies the jet tries to achieve an alpha, even with stick neutral. This could explain the continued pitch up and THS trim,...
Forum: Tech Log
5th Jul 2011, 15:09
Replies: 1,069
Views: 279,614
Posted By gums

Basic control law, et al

TNX for nice words, Aura. And A33Z seems to homing in on the concept I advocate - to some extent.

There is absolutely no reason to diminish the capabilities of a FBW system in the "basic" law. ...
Forum: Tech Log
5th Jul 2011, 03:27
Replies: 1,069
Views: 279,614
Posted By gums

Basic control laws

Salute!

After private posts with members of this august group.......

Make no mistake, I do not advocate an instant reversion to direct commands of the control surfaces using an RC model logic....
Forum: Tech Log
4th Jul 2011, 20:49
Replies: 1,069
Views: 279,614
Posted By gums

One mo'time

Salute!

First, I'd like to address the concern/question by Doze.

You do not need "q" or total pressure to trim the jet for a gee ( Nz). And it is disturbing to find from A33Z that the FLCS...
Forum: Tech Log
3rd Jul 2011, 03:42
Replies: 1,069
Views: 279,614
Posted By gums

Gee sensing deux

Thanks a33Z, shows a variation of design philosophy as well as implementation.

Our FLCS ( flight control system) folks were paranoid about using anything but their own data/sensors. Their data...
Forum: Tech Log
2nd Jul 2011, 21:49
Replies: 1,069
Views: 279,614
Posted By gums

Gee sensing for FBW systems

As with Chris, I too wonder what does Doze think the "system" uses to sense and use Nz.

I don't have the box specs in front of me, but I doubt that the confusers use the basic inertial and...
Forum: Tech Log
30th Jun 2011, 02:43
Replies: 1,069
Views: 279,614
Posted By gums

Normal gee

@JD

We are talking about the aircraft reference frame for one gee. That's down from your brain thru your butt if you are not at Creech AFB flying a Predator drone 10,000 miles away, heh heh.
...
Forum: Tech Log
29th Jun 2011, 22:51
Replies: 1,069
Views: 279,614
Posted By gums

AoA Protection

@a33z
Very good description of the "intent" of the AoA protection. It's what "protection" should be.

My question has to do with at least one reversion mode in which it appears the system...
Forum: Tech Log
29th Jun 2011, 14:43
Replies: 1,069
Views: 279,614
Posted By gums

Alpha prot law

Saw a post from A33Z about this:
Nuts cracked the "nut" with this:

Why does the system, not the pilot, try to maintain an AoA that is not necessary?

If the "protection" limit is "x", no...
Forum: Tech Log
27th Jun 2011, 04:14
Replies: 1,069
Views: 279,614
Posted By gums

bad weather, et al

To Old Car. and others.......

There is no doubt that some weather started the sequence that resulted in many lives being lost. The stoopid air data sensors went into la la land. That started the...
Forum: Tech Log
23rd Jun 2011, 18:27
Replies: 1,069
Views: 279,614
Posted By gums

more automation?

Some nice points, Garage.

Some do not realize that one of my original jets was the VooDoo, and it had the dreaded "pitch-up". Couldn't deep stall it due to the aero and c.g., but it had two...
Forum: Tech Log
23rd Jun 2011, 16:30
Replies: 1,069
Views: 279,614
Posted By gums

Stall recognition, et al

I can see that many here cannot appreciate how "benign" a deep stall is in a well-designed airplane. When the wreckage pattern was revealed, I began thinking "deep stall" versus stall-spin or...
Forum: Tech Log
22nd Jun 2011, 22:29
Replies: 1,069
Views: 279,614
Posted By gums

Accident investigations

I throw my lot in with Sv, and his approach to the investigation of this terrible accident.

I apologize if I appear to be harsh with respect to my opinions of the Airbus design, but I feel I am...
Forum: Tech Log
22nd Jun 2011, 17:34
Replies: 1,069
Views: 279,614
Posted By gums

Loss of control and AF447

A previous contributor brought up “loss of control” as a major cause of crashes. Hell, it's the only cause - act of God ( microburst on short approach or a mountain wave rotor), pilot unable to...
Forum: Tech Log
17th Jun 2011, 03:57
Replies: 1,069
Views: 279,614
Posted By gums

Awwww maaaan.....

Salute!

Gee, PJ, I thought I was losing it....



Unlike our little jet with different operational requirements, that's what we saw when we relaxed pressure on the stick in a slight climb. ...
Forum: Tech Log
17th Jun 2011, 03:01
Replies: 1,069
Views: 279,614
Posted By gums

stalls, OODA, THS "laws"

Salute!

- First of all, there are "stalls". Then "deep stalls". Then "deep" stalls. So despite my posts describing a true "deep stall" in another jet, I can't say for sure if the Bus will do...
Showing results 1 to 18 of 18


 
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