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Search: Posts Made By: john_tullamarine
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Forum: Tech Log
29th Mar 2017, 11:02
Replies: 56
Views: 14,262
Posted By john_tullamarine

flying Mr Boeing's Tri-motor, A gentleman's...

flying Mr Boeing's Tri-motor,

A gentleman's flying machine ..

There was a weight correction for "train on track"

And, in the same vein, one sometimes sees allowances made for transitory...
Forum: Tech Log
27th Mar 2017, 12:31
Replies: 56
Views: 14,262
Posted By john_tullamarine

Indeed .. VFR/IFR had different OEI climb...

Indeed .. VFR/IFR had different OEI climb requirements for certification .. VMC was irrelevant. The difference in certification requirements at the time between the FARs and the ANOs caused folks a...
Forum: Tech Log
27th Mar 2017, 12:07
Replies: 56
Views: 14,262
Posted By john_tullamarine

Just as a minor side point, MTOW is not...

Just as a minor side point, MTOW is not necessarily a structural limit.

For instance, the GAF N24A MTOW was OEI climb limited and, I am sure, there will be others - the updated MTOW exercise...
Forum: Tech Log
27th Mar 2017, 12:00
Replies: 56
Views: 14,262
Posted By john_tullamarine

It appears that I'm fighting a losing battle here...

It appears that I'm fighting a losing battle here ... however, for the benefit of the new chums whom I don't wish to get quite wrong ideas, I shall continue ..

In determining the maximum weight...
Forum: Tech Log
27th Mar 2017, 02:12
Replies: 56
Views: 14,262
Posted By john_tullamarine

I'm surprised to see that not a single one of you...

I'm surprised to see that not a single one of you commenters here is using mass.

In industry practice, both terms are used interchangeably, albeit incorrectly. Functionally, it matters little .....
Forum: Tech Log
19th Mar 2017, 05:28
Replies: 56
Views: 14,262
Posted By john_tullamarine

the answer is simple yes it can take off at MTOW...

the answer is simple yes it can take off at MTOW with OEI.

The answer MUST be qualified by something such as "subject to WAT limits".
Forum: Tech Log
18th Mar 2017, 22:02
Replies: 56
Views: 14,262
Posted By john_tullamarine

I meant if the chart throws up RTOW equal to MTOW...

I meant if the chart throws up RTOW equal to MTOW then one engine performance is also considered as a part of the calculation.

Both AEO and OEI performance is considered for EVERY takeoff. ...
Forum: Tech Log
18th Mar 2017, 09:40
Replies: 56
Views: 14,262
Posted By john_tullamarine

If you see a typical RTOW chart with a long...

If you see a typical RTOW chart with a long runway,

I think you are saying that WAT limits are the consideration ?

But what is factored in your story ?
Forum: Tech Log
17th Mar 2017, 21:20
Replies: 56
Views: 14,262
Posted By john_tullamarine

Commercial aircraft must be capable of continuing...

Commercial aircraft must be capable of continuing a take-off if the critical engine fails around V1

ie FAR 25 certifications. The key is the certification basis not whether the aircraft is being...
Forum: Tech Log
12th Mar 2017, 22:52
Replies: 56
Views: 14,262
Posted By john_tullamarine

Didn't someone actually do this in a Twin Otter? ...

Didn't someone actually do this in a Twin Otter?

There are some stories .. run a search in PPRuNe .. there was a thread I can recall on the subject

.. but the Aero Commander marketing...
Forum: Tech Log
12th Mar 2017, 22:21
Replies: 56
Views: 14,262
Posted By john_tullamarine

So the AFM should also tell the MTOW in case of...

So the AFM should also tell the MTOW in case of one engine out during the takeoff phase.

The AFM provides the tools to do the sums, providing that all relevant external data (wx, runway details,...
Forum: Tech Log
12th Mar 2017, 09:36
Replies: 56
Views: 14,262
Posted By john_tullamarine

.. for which you need to refer to the relevant...

.. for which you need to refer to the relevant AFM.
Forum: Tech Log
12th Mar 2017, 03:00
Replies: 56
Views: 14,262
Posted By john_tullamarine

Some discussion on gradient here...

Some discussion on gradient here (http://www.pprune.org/tech-log/477551-2-4-regulatory-climb-gradient-single-engine.html).
Forum: Tech Log
11th Mar 2017, 20:48
Replies: 56
Views: 14,262
Posted By john_tullamarine

That's all I'd like to know. That's a...

That's all I'd like to know.

That's a specific AFM question so it will require an answer from someone who can refer to the manual to check. What you really are asking is .. whether the takeoff...
Forum: Tech Log
11th Mar 2017, 10:53
Replies: 56
Views: 14,262
Posted By john_tullamarine

Lots of threads in PPRuNe talk to this topic. ...

Lots of threads in PPRuNe talk to this topic.

Suggest you run a search on something like "takeoff weight limit" and have a read through the resulting links. Be aware that references to "mass"...
Showing results 1 to 15 of 15


 
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