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Search: Posts Made By: john_tullamarine
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Forum: Tech Log
27th Jan 2023, 22:13
Replies: 1
Views: 172
Posted By john_tullamarine

You have a parallel thread in the private forum...

You have a parallel thread in the private forum so I think we can close this one.
Forum: Tech Log
25th Jan 2023, 21:52
Replies: 2
Views: 278
Posted By john_tullamarine

For the pitot-static system, proper, I can't...

For the pitot-static system, proper, I can't bring to mind any aircraft which uses both a combined head and fuselage static ports - there should be no reason to do so.

The pitot bit is...
Forum: Tech Log
25th Jan 2023, 21:46
Replies: 14
Views: 673
Posted By john_tullamarine

there's a gap between ... procedures designers...

there's a gap between ... procedures designers and actual pilots

I would expect that most, if not all, procedures designers have significant flying backgrounds. Perhaps one should be looking...
25th Jan 2023, 06:11
Replies: 231
Views: 22,550
Posted By john_tullamarine

In usual parlance, the limitations section is...

In usual parlance, the limitations section is hard, other sections not quite so.

For instance, it is quite routine for airlines to seek an NTO (no technical objection) from the OEM for airline...
Forum: Tech Log
25th Jan 2023, 06:04
Replies: 14
Views: 673
Posted By john_tullamarine

Just as a side FYI, this work has naught to do...

Just as a side FYI, this work has naught to do with Performance Engineers, rather it is a procedures designer problem.
25th Jan 2023, 04:03
Replies: 231
Views: 22,550
Posted By john_tullamarine

Putting to one side whether there be a legal...

Putting to one side whether there be a legal constraint or not with the performance section data - as opposed to specific limitations in the limitations section, one of the problems faced by the...
23rd Jan 2023, 23:16
Replies: 129
Views: 44,842
Posted By john_tullamarine

circuits within the 3 mile limit, it would be...

circuits within the 3 mile limit, it would be pure bliss!!

Reminds me, years ago. Did some work for Ralph Capponi (thoroughly top chap with a fascinating history) at Essendon and cut out the...
15th Jan 2023, 01:09
Replies: 231
Views: 22,550
Posted By john_tullamarine

A lot of good discussion in those older threads...

A lot of good discussion in those older threads (thanks for making the effort to dig out the links, Checkboard - we're all faced with the getting older problem, mate) along with a few not quite...
14th Jan 2023, 07:22
Replies: 26
Views: 6,205
Posted By john_tullamarine

Smile Hear, hear.

Hear, hear.
14th Jan 2023, 07:09
Replies: 231
Views: 22,550
Posted By john_tullamarine

In some places STODA is all you have John. ...

In some places STODA is all you have John.

And, in many places, not even that. If one is going to consider OEI for light twins, STODAs are going to provide very little comfort for the typical...
14th Jan 2023, 03:41
Replies: 231
Views: 22,550
Posted By john_tullamarine

Not true re airline In Oz, the rules for...

Not true re airline

In Oz, the rules for heavies have always been reasonably well prescribed. Except for benign terrain airports, it has always been a reasonably detailed exercise for the ops...
10th Jan 2023, 06:54
Replies: 235
Views: 53,850
Posted By john_tullamarine

I hear rumours Same here. Alas, I fear,...

I hear rumours

Same here. Alas, I fear, mostly just that.
9th Jan 2023, 02:46
Replies: 235
Views: 53,850
Posted By john_tullamarine

Exam system is not helped by asking questions at...

Exam system is not helped by asking questions at times that you have to give an answer to get a tick that is actually wrong.

Indeed. A corollary consideration/problem is that much is simplified...
8th Jan 2023, 09:19
Replies: 235
Views: 53,850
Posted By john_tullamarine

Too much chaff and not enough wheat in the...

Too much chaff and not enough wheat in the training system.

Hear, hear

The Exam system is the problem.

I guess yes and no. The examiner has his hands tied to some extent in respect of what...
7th Jan 2023, 22:43
Replies: 235
Views: 53,850
Posted By john_tullamarine

Not even JT will show an example I refer to...

Not even JT will show an example

I refer to you #173 - I made no claims about this or that aircraft for specifics. ANY aircraft will break if you overload it enough.

Megan (#184) makes a...
6th Jan 2023, 10:20
Replies: 235
Views: 53,850
Posted By john_tullamarine

The problem is that the standard of theory...

The problem is that the standard of theory instruction is pretty average in many areas, this being one. That, also, has to do with the syllabus, the exams, and the fact that many students are...
6th Jan 2023, 09:51
Replies: 235
Views: 53,850
Posted By john_tullamarine

Makes it a bit tough for us gumbies with our...

Makes it a bit tough for us gumbies with our hands on the controls...

Not really. The discussion earlier with djpil provides a clue.

For the normal category aircraft, the limit load factor,...
6th Jan 2023, 09:17
Replies: 235
Views: 53,850
Posted By john_tullamarine

What is "Va min" Just my relaxed terminology...

What is "Va min"

Just my relaxed terminology for the lowest Va available to the OEM, viz, Vs√n.

The problem is that Va is an engineering design requirement, where it is limited to a minimum of...
6th Jan 2023, 08:02
Replies: 235
Views: 53,850
Posted By john_tullamarine

is a good 'takeaway' djpil's observations in...

is a good 'takeaway'

djpil's observations in #160 are pertinent. See, also, Federal Aviation Regulation Sec. 23.349 - Rolling conditions. (risingup.com)...
6th Jan 2023, 07:22
Replies: 235
Views: 53,850
Posted By john_tullamarine

are you talking about cases That's my take...

are you talking about cases

That's my take on reading the FARs. Pitching loads need to be cognizant of limit load factor potential to cause raised eyebrows.
6th Jan 2023, 07:01
Replies: 23
Views: 11,277
Posted By john_tullamarine

FYI I don't know if Dora-9 ever flew helicopters...

FYI I don't know if Dora-9 ever flew helicopters and have no idea what his attitude to young Harry may be, but he is a very experienced FW pilot. I wouldn't have thought him a troll.
5th Jan 2023, 23:32
Replies: 235
Views: 53,850
Posted By john_tullamarine

this film from the CSIRO How on earth did...

this film from the CSIRO

How on earth did you track this stuff down ? Re the wing - if the spar cap breaks, you end up with a hinge which doesn't work as well. At least it all happens quickly...
Replies: 5
Views: 451
Posted By john_tullamarine

.. so they won’t show up in the final load sheet....

.. so they won’t show up in the final load sheet.

Hence the necessity of a sensible curtailment analysis in the loading system design and, generally, overlaid LMC allowances.
Replies: 5
Views: 451
Posted By john_tullamarine

The tolerances are so bewilderingly massive for...

The tolerances are so bewilderingly massive for the very reason that stuff like this happens

Methinks you need to do a little homework study because whatever training you have had in weight...
Replies: 5
Views: 451
Posted By john_tullamarine

One of the design aspects of loading systems (ie...

One of the design aspects of loading systems (ie how to figure weight and balance for a flight) is to embody tolerance checks so that minor errors in practice (in this case, a "wrong" baggage value)...
4th Jan 2023, 20:56
Replies: 231
Views: 22,550
Posted By john_tullamarine

mix the water that had already settled with the...

mix the water that had already settled with the fuel

Avgas and water don't mix to any extent.
4th Jan 2023, 10:46
Replies: 231
Views: 22,550
Posted By john_tullamarine

was it SI? I have no specific knowledge of...

was it SI?

I have no specific knowledge of what might have happened - hence the question mark in my earlier post. However, an 0-dark-30 departure, especially if it were good and properly dark,...
4th Jan 2023, 10:28
Replies: 235
Views: 53,850
Posted By john_tullamarine

please list the C210 wing structural failures...

please list the C210 wing structural failures that they are aware of.

I don't think that I made a claim regarding 210s routinely losing wings ? Any aircraft will suffer damage if loads exceed the...
4th Jan 2023, 08:49
Replies: 231
Views: 22,550
Posted By john_tullamarine

Somatogravic problem ?

Somatogravic problem ?
4th Jan 2023, 01:01
Replies: 235
Views: 53,850
Posted By john_tullamarine

Ah, not quite your routine day job, then ?

Ah, not quite your routine day job, then ?
3rd Jan 2023, 21:21
Replies: 235
Views: 53,850
Posted By john_tullamarine

no one had certified the COMBINATION of all the...

no one had certified the COMBINATION of all the mods as one package.

A common worry. What is supposed to happen is that the STC should be qualified as to serials applicable and compatible mods. ...
Forum: Tech Log
3rd Jan 2023, 21:11
Replies: 69
Views: 12,267
Posted By john_tullamarine

measuring with a micrometer and cutting with an...

measuring with a micrometer and cutting with an axe.

This has been a major problem since we obtained general access to digital computers spitting out answers to a precision of a squillion decimals...
3rd Jan 2023, 10:43
Replies: 4,631
Views: 1,921,637
Posted By john_tullamarine

Life certainly is duller these days ...

Life certainly is duller these days ...
3rd Jan 2023, 07:40
Replies: 235
Views: 53,850
Posted By john_tullamarine

It is indeed a rule Oh dear, a chap gets...

It is indeed a rule

Oh dear, a chap gets slack and doesn't bother to look up and cite the rule - and gets a gentle slap over the wrist for being a bit relaxed. Thanks, Dave, and a very good new...
3rd Jan 2023, 06:13
Replies: 4,631
Views: 1,921,637
Posted By john_tullamarine

I understand that Ron Folk from one's past. ...

I understand that Ron

Folk from one's past. Ron makes more sense than Wes.

SVQ now goes back a long way. I can't recall whether it was the CP or chief engineer but I sat next to one or the...
Showing results 1 to 35 of 1000
 


 
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