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Search: Posts Made By: David36
Showing results 1 to 28 of 28
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Forum: Biz Jets, Ag Flying, GA etc.
17th Jan 2013, 14:17
Replies: 10
Views: 1,853
Posted By David36

How about the "mech" asking what credentials and...

How about the "mech" asking what credentials and experience you have before he lets you put his life in your hands, how would you react to that?

I am in the same airplane, my ass is in that...
Forum: Biz Jets, Ag Flying, GA etc.
16th Jan 2013, 11:24
Replies: 10
Views: 1,853
Posted By David36

And how I'm gonna make the invitation to fly with...

And how I'm gonna make the invitation to fly with me?:E Maybe they should know I will take them to fly before they start to repaair, isn't it?:}
Forum: Biz Jets, Ag Flying, GA etc.
16th Jan 2013, 08:40
Replies: 10
Views: 1,853
Posted By David36

Of course I do that. I would like some advices...

Of course I do that. I would like some advices regarding post-maintenance flight and also, about the ensurance regarding critical structural repairs on airframe or flight controls.
Forum: Biz Jets, Ag Flying, GA etc.
15th Jan 2013, 19:19
Replies: 10
Views: 1,853
Posted By David36

Pilot - MX cooperation

I would like to talk a little about how you found the proper way to cooperate with maintenance guys, how to ensure your best as a pilot regarding repairs, works done etc.

It is known by...
Forum: Tech Log
15th Jan 2013, 06:10
Replies: 52
Views: 17,289
Posted By David36

I'm sorry, where did you find such detailed...

I'm sorry, where did you find such detailed reports to prove that pilots have made such exageratted attempts until all the threads wore out?

In all reports I found there are no detailed actions to...
Forum: Tech Log
14th Jan 2013, 13:35
Replies: 52
Views: 17,289
Posted By David36

And that's different? I thought it's the same...

And that's different? I thought it's the same thing on MD types.
Edit: What I found is that Boeing uses a ballscrew design, that is on series 727,737,757,767 and maybe others.
Forum: Tech Log
14th Jan 2013, 08:53
Replies: 52
Views: 17,289
Posted By David36

Yeah, I figure out that would be the only logical...

Yeah, I figure out that would be the only logical reason to make the recommandation for those aircrafts, however, as far as I know, it is not true. Most of big jets use single jackscrew design to...
Forum: Tech Log
14th Jan 2013, 06:28
Replies: 52
Views: 17,289
Posted By David36

As I said, it is pretty clear for me that it's...

As I said, it is pretty clear for me that it's not a safety flaw considering that as far as I know it was the only one crash related to that jackscrew and the cause was gross improper maintenance.
...
Forum: Tech Log
13th Jan 2013, 18:48
Replies: 52
Views: 17,289
Posted By David36

I know that and it is not the point of this...

I know that and it is not the point of this thread (even if the reports conclusion was that it is not appropriate to rely solely on maintenance and inspection intervention to prevent the failure from...
Forum: Tech Log
13th Jan 2013, 18:34
Replies: 52
Views: 17,289
Posted By David36

THS Jackscrew design

Reading Alaska Airlines flight 261 reports , I wonder why NTSB points out only to DC-9, MD-80/90 and Boeing 717 fleet regarding the jackscrew design considering that (as far as I know) the designs...
Forum: Tech Log
13th Jan 2013, 16:38
Replies: 8
Views: 3,803
Posted By David36

In the 737, aileron trim or rudder moves the...

In the 737, aileron trim or rudder moves the neutral position via the feel & centering mechanism.

What if you can't center them? Usually you attempt this using the same switch that malfunctioned....
Forum: Tech Log
13th Jan 2013, 11:48
Replies: 8
Views: 3,803
Posted By David36

Too late to edit the mistyped title, I'm sorry. ...

Too late to edit the mistyped title, I'm sorry.

Ok. The question was how large are the forces on rudder pedals or yoke due to a runaway aileron/rudder trim and if those can be overpowered by...
Forum: Tech Log
13th Jan 2013, 11:34
Replies: 8
Views: 3,803
Posted By David36

I would appreciate to detail a bit.

I would appreciate to detail a bit.
Forum: Tech Log
13th Jan 2013, 10:49
Replies: 8
Views: 3,803
Posted By David36

Aileron/rudder runaway trim - Procedure/Cutout Switches ?

As far as I know, on big jets, as an example 737, there are no procedures or cutout switches for rudder/aileron trim. Is the crew able to cope with a runaway aileron/rudder trim forces?
Forum: Tech Log
13th Jan 2013, 10:47
Replies: 105
Views: 25,450
Posted By David36

Just a personal curiosity to wake up this old...

Just a personal curiosity to wake up this old thread.

In case of total hyd loss, do flight surfaces lock in place or they will freefloat into wind?

As far as I know, being a FBW...
Forum: Questions
2nd Jan 2013, 17:04
Replies: 11
Views: 4,908
Posted By David36

In that case, I figure out that a total hyd loss...

In that case, I figure out that a total hyd loss also brings a flutter risk situation assuming freefloating surfaces.
Forum: Questions
2nd Jan 2013, 10:16
Replies: 11
Views: 4,908
Posted By David36

So the surfaces will be freefloating only if...

So the surfaces will be freefloating only if there's a total hyd loss due to fuel leak, right?
Forum: Questions
1st Jan 2013, 16:34
Replies: 11
Views: 4,908
Posted By David36

I wonder if you loose all hydraulic systems, will...

I wonder if you loose all hydraulic systems, will the surfaces be locked-in place or they will be freefloating moving?

I mean either you don't have any pump working or if you have hyd leak and...
Forum: Aviation History and Nostalgia
30th Dec 2012, 16:15
Replies: 39
Views: 12,134
Posted By David36

I wonder, in case of total hydraulic loss, are...

I wonder, in case of total hydraulic loss, are the surfaces locked-in place or they are freefloating? Not necessary on Airbus, also on other big jets.
Forum: Tech Log
30th Dec 2012, 10:39
Replies: 105
Views: 25,450
Posted By David36

I wonder in case of total hyd loss,

I wonder in case of total hyd loss,
Forum: Tech Log
29th Dec 2012, 12:19
Replies: 105
Views: 25,450
Posted By David36

Just a personal curiosity to wake up this old...

Just a personal curiosity to wake up this old thread.

In case of total hyd loss, do flight surfaces lock in place or they will freefloat into wind?

As far as I know, being a FBW (irreversible)...
Forum: Tech Log
29th Dec 2012, 12:15
Replies: 105
Views: 25,450
Posted By David36

Just a personal curiosity to wake up this old...

Just a personal curiosity to wake up this old thread.

In case of total hyd loss, do flight surfaces lock in place or they will freefloat into wind?

As far as I know, being a FBW (irreversible)...
Forum: Biz Jets, Ag Flying, GA etc.
27th Dec 2012, 19:28
Replies: 16
Views: 3,627
Posted By David36

I agree, it is obvious that pilot error and...

I agree, it is obvious that pilot error and engine failures are some of the most common crash causes.
No one is immune to pilot error, but I do not want to get more deep into details about the...
Forum: Biz Jets, Ag Flying, GA etc.
27th Dec 2012, 07:15
Replies: 16
Views: 3,627
Posted By David36

What about the flutter issue? I found many light...

What about the flutter issue? I found many light sports and I think also some standard FAR 23 certified don't have mass balanced ailerons. (American Champion series: Scout, Citabria etc.).

Do you...
Forum: Biz Jets, Ag Flying, GA etc.
24th Dec 2012, 15:23
Replies: 16
Views: 3,627
Posted By David36

What I've also read about the full disconnected...

What I've also read about the full disconnected free control surface scenario is that a freefloating surface is prone to flutter and this having really bad consequences. Also, trim tab cable failure...
Forum: Tech Log
20th Dec 2012, 09:35
Replies: 1
Views: 1,177
Posted By David36

Flight control system redundancy and hardovers

I wonder how on earth could be the 737 designed with no redundancy on the rudder system leaving such a risky scenario uncovered in a fail-safe way? (I know they were retrofitted after years.)

...
Forum: Biz Jets, Ag Flying, GA etc.
20th Dec 2012, 05:46
Replies: 16
Views: 3,627
Posted By David36

As I said, I'm interested in a conventional small...

As I said, I'm interested in a conventional small plane design (elevator, trim tab e.g. C172) and the "books" were not for trimmable horizontal stabilizer design or orther designs.

Also, if the...
Forum: Biz Jets, Ag Flying, GA etc.
19th Dec 2012, 15:29
Replies: 16
Views: 3,627
Posted By David36

Trim effect jammed elevator emergency

Would trim have any effect if it's used in an opposite way on a stuck elevator vemergency in a convential plane (eg Cessna 172)? It is not clear for me if the trim tab really acts as a mini elevator...
Showing results 1 to 28 of 28


 
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