PPRuNe Forums - Search Results
PPRuNe Forums

Go Back  PPRuNe Forums > Search Forums
Reload this Page >

Search Results

Register
FAQ
Calendar
Wikiposts
Today's Posts
Search
Vendor Directory
Search: Posts Made By: ARealTimTuffy
Showing results 1 to 34 of 34
Search took 0.00 seconds.
Forum: Rumours & News
9th Dec 2019, 12:27
Replies: 4,656
Views: 4,809,628
Posted By ARealTimTuffy

Based on the JATR report it could be argued there...

Based on the JATR report it could be argued there is a problem with the changed product rule. Recommendation R1.

The changed system was not required to be tested with a top down approach. Testing...
Forum: Rumours & News
23rd Nov 2019, 01:23
Replies: 4,656
Views: 4,809,628
Posted By ARealTimTuffy

Even maxing out the range and flight time, you...

Even maxing out the range and flight time, you still won’t quite get to where the regs and even most union contracts will require a third pilot.
Forum: Rumours & News
10th Nov 2019, 22:46
Replies: 4,656
Views: 4,809,628
Posted By ARealTimTuffy

They are different things. Point 3 the stabilizer...

They are different things. Point 3 the stabilizer cutout switches right below the flap lever is quite well known. Point 5, as near as I can discern, relates to the stab trim override switch at the...
Forum: Rumours & News
6th Nov 2019, 18:28
Replies: 4,656
Views: 4,809,628
Posted By ARealTimTuffy

Not too likely. The electric motor is at the stab...

Not too likely. The electric motor is at the stab itself and the stab backdrives the trim wheels. The pilots are hand cranking the wheels about 100 feet away via cables. We simply don’t have the...
Forum: Rumours & News
2nd Nov 2019, 02:43
Replies: 4,656
Views: 4,809,628
Posted By ARealTimTuffy

To add: From the Lionair accident report. 1.6.5.4

To add: From the Lionair accident report. 1.6.5.4
Forum: Rumours & News
2nd Nov 2019, 02:38
Replies: 4,656
Views: 4,809,628
Posted By ARealTimTuffy

This is correct.

This is correct.
Forum: Rumours & News
31st Oct 2019, 17:55
Replies: 4,656
Views: 4,809,628
Posted By ARealTimTuffy

MCAS is an extension of STS and STS runs through...

MCAS is an extension of STS and STS runs through the autopilot trim.

There is an STS system which includes speed trim functions and MCAS functions,
STS function will be cutout via the control...
Forum: Rumours & News
31st Oct 2019, 03:32
Replies: 4,656
Views: 4,809,628
Posted By ARealTimTuffy

Watched all 9 hrs of testimony the last 2 days. ...

Watched all 9 hrs of testimony the last 2 days.

Mr Muilenburg got it so wrong during the hearings. He could have come out looking way better for himself, but it seems he still doesn’t...
Forum: Rumours & News
30th Oct 2019, 01:29
Replies: 4,656
Views: 4,809,628
Posted By ARealTimTuffy

There is additional lights on each side of the...

There is additional lights on each side of the main instrument panel. One for Cabin Altitude and one for Takeoff config. The audio warning is still the same intermittent horn for both.

Just to...
Forum: Rumours & News
26th Oct 2019, 13:43
Replies: 4,656
Views: 4,809,628
Posted By ARealTimTuffy

Although my airline is in a unique position, our...

Although my airline is in a unique position, our crews have been through a flight control malfunction sim highlighting trim runaways, manual trimming highlighting the forces required, and IAS...
Forum: Rumours & News
22nd Oct 2019, 15:14
Replies: 4,656
Views: 4,809,628
Posted By ARealTimTuffy

The text exchange is still very bad. I never...

The text exchange is still very bad. I never felt it’s significance was directly about MCAS anyway. Although it would have been nice if after seeing it activate inappropriately in the sim and the...
Forum: Rumours & News
7th Oct 2019, 16:06
Replies: 4,656
Views: 4,809,628
Posted By ARealTimTuffy

My point exactly. We learned from the mistakes...

My point exactly. We learned from the mistakes those of the past have made. Many of them foolish. Let’s not “go back to the good old days”. Let’s move forward with training and experience all...
Forum: Rumours & News
6th Oct 2019, 22:39
Replies: 4,656
Views: 4,809,628
Posted By ARealTimTuffy

I’m all for more training, but let’s not kid...

I’m all for more training, but let’s not kid ourselves. Yesteryear was not all that pretty either. Go take a look at the accident reports from the 70s and 80s and even into the 90s. There were a...
Forum: Rumours & News
2nd Oct 2019, 00:31
Replies: 4,656
Views: 4,809,628
Posted By ARealTimTuffy

There are plenty of accidents out there that...

There are plenty of accidents out there that point to the need for improved skills and better training all around.

While it may in fact be the case that these crews were under trained, these are...
Forum: Rumours & News
27th Sep 2019, 06:54
Replies: 4,656
Views: 4,809,628
Posted By ARealTimTuffy

There certainly is a memory item for stab trim...

There certainly is a memory item for stab trim runaway. Maybe your airline saw fit to remove it as a memory item but as soon as the lion air accident happened and the FAA put out the AD it should...
Forum: Rumours & News
21st Sep 2019, 21:13
Replies: 4,656
Views: 4,809,628
Posted By ARealTimTuffy

The original reason for MCAS was found in the...

The original reason for MCAS was found in the engineering sims long before the actual aircraft was built. It was used to compensate for the control forces in a constant speed high bank angle and load...
Forum: Rumours & News
3rd Aug 2019, 01:56
Replies: 4,656
Views: 4,809,628
Posted By ARealTimTuffy

According to the Seattle Times , there were 3 Faa...

According to the Seattle Times , there were 3 Faa pilots. 2 test pilots, typically ex military and one typically former airline pilot. They tested 33 different scenarios. After feeling uncomfortable...
Forum: Rumours & News
31st Jul 2019, 00:51
Replies: 4,656
Views: 4,809,628
Posted By ARealTimTuffy

That all seems reasonable. The information that...

That all seems reasonable. The information that we have at this point is that none of the type of counter arguments that you made in your case seem to have been done in this case. Granted this is...
Forum: Rumours & News
30th Jul 2019, 21:24
Replies: 4,656
Views: 4,809,628
Posted By ARealTimTuffy

Indeed. In this case though, the authors of the...

Indeed. In this case though, the authors of the article don’t have to understand the intricacies of certification standards. They just have to have those who do understand on record. And it seems...
Forum: Rumours & News
30th Jul 2019, 18:19
Replies: 4,656
Views: 4,809,628
Posted By ARealTimTuffy

The problem isn’t with the rudder cables...

The problem isn’t with the rudder cables themselves perhaps. It is that the reason it wasn’t fixed was the regulator was concerned with the cost to the manufacture. It would be different if there was...
Forum: Rumours & News
1st Jul 2019, 00:13
Replies: 4,656
Views: 4,809,628
Posted By ARealTimTuffy

Not sure how it is accomplished, whether variable...

Not sure how it is accomplished, whether variable voltage via resistors or software processing or something, but the trim does indeed function at 2 different speeds. Flaps up: both manual electric...
Forum: Rumours & News
1st Jul 2019, 00:08
Replies: 4,656
Views: 4,809,628
Posted By ARealTimTuffy

The disabling of the cutout switches is...

The disabling of the cutout switches is relatively straight forward to understand. They only don't cutout during MCAS activation. They will cutout during STS. But it makes sense (given what they...
Forum: Rumours & News
30th Jun 2019, 20:59
Replies: 4,656
Views: 4,809,628
Posted By ARealTimTuffy

While I don't dispute your conclusion, I don't...

While I don't dispute your conclusion, I don't think that your description of forces on the horizontal stab are correct. I would agree that under normal circumstances the load would increase as you...
Forum: Rumours & News
28th Jun 2019, 14:47
Replies: 4,656
Views: 4,809,628
Posted By ARealTimTuffy

There is a lot of misinformation in that...

There is a lot of misinformation in that article/blog. Some good stuff too.
Forum: Rumours & News
28th Jun 2019, 11:55
Replies: 4,656
Views: 4,809,628
Posted By ARealTimTuffy

The way I have read most of the reporting is that...

The way I have read most of the reporting is that the processing issue has shown up as a result of the software update for the Mcas. It seems to imply it wasn’t there with the original mcas.

But,...
Forum: Rumours & News
24th Jun 2019, 20:21
Replies: 4,656
Views: 4,809,628
Posted By ARealTimTuffy

To Add for Smthye. in the congressional...

To Add for Smthye.

in the congressional testimony on May 15th of Dan Elwell they bring up these other autopilot on reports in the safety reporting system. He states that these were an unrelated...
Forum: Rumours & News
24th Jun 2019, 15:52
Replies: 4,656
Views: 4,809,628
Posted By ARealTimTuffy

I’m simply responding to the previous post. ...

I’m simply responding to the previous post. Forgetting about failure modes for a second, it wouldn’t make sense to have the control column cutout the trim if the pilot continues to pull back while...
Forum: Rumours & News
24th Jun 2019, 11:57
Replies: 4,656
Views: 4,809,628
Posted By ARealTimTuffy

There is nothing sneaking through there. The...

There is nothing sneaking through there. The cutout switch inside the column is there to prevent a trim runaway. However the MCAS as designed must function despite back pressure. If it cutout MCAS...
Forum: Rumours & News
23rd Jun 2019, 22:59
Replies: 4,656
Views: 4,809,628
Posted By ARealTimTuffy

Sorry Smthye but you are incorrect. Unless...

Sorry Smthye but you are incorrect.

Unless we have been lied to, the Max does not have an absolute pitch up tendency at high AOA. The RATE OF CHANGE of force of back pressure must be linear...
Forum: Rumours & News
18th Jun 2019, 11:56
Replies: 4,656
Views: 4,809,628
Posted By ARealTimTuffy

I see my first paragraph didn’t type out well. I...

I see my first paragraph didn’t type out well. I meant to say that the pitch power coupling on the max while substantial, isn’t a big deal either as long as the flight controls are working...
Forum: Rumours & News
18th Jun 2019, 00:40
Replies: 4,656
Views: 4,809,628
Posted By ARealTimTuffy

The 737 max has substantial power/pitch coupling....

The 737 max has substantial power/pitch coupling. It are also non event, aside from some trimming, when the flight controls are working correctly. In this case they weren’t.

Having said that I...
Forum: Rumours & News
11th Jun 2019, 11:54
Replies: 4,656
Views: 4,809,628
Posted By ARealTimTuffy

Fair point. I misquoted. Argument stands even...

Fair point. I misquoted. Argument stands even at 120 hours. I don’t think that will be the bottleneck.
Forum: Rumours & News
11th Jun 2019, 04:06
Replies: 4,656
Views: 4,809,628
Posted By ARealTimTuffy

I think the storage thing is getting blown a...

I think the storage thing is getting blown a little out of proportion. It will definitely take time to bring the airplanes back, but I don’t think it is as big a factor as some are making it out. ...
Forum: Rumours & News
8th Jun 2019, 21:24
Replies: 4,656
Views: 4,809,628
Posted By ARealTimTuffy

The Max burns a little over 2000 KG an hour....

The Max burns a little over 2000 KG an hour. Approx the same as the E190, but with 70 or so extra passengers.

On a 5 hour flight you should save approx 2500 to 3500 KG of fuel over a CFM56. It is...
Showing results 1 to 34 of 34


 
Forum Jump

Contact Us - Archive - Advertising - Cookie Policy - Privacy Statement - Terms of Service

Copyright © 2024 MH Sub I, LLC dba Internet Brands. All rights reserved. Use of this site indicates your consent to the Terms of Use.