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Search: Posts Made By: FlightPathOBN
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Forum: Tech Log
6th Jan 2013, 20:15
Replies: 76
Views: 160,021
Posted By FlightPathOBN

SG..thanks for correcting me...I didnt catch the...

SG..thanks for correcting me...I didnt catch the KG...
Forum: Tech Log
5th Jan 2013, 16:37
Replies: 76
Views: 160,021
Posted By FlightPathOBN

If we go back to the original question CAT. As...

If we go back to the original question CAT.
As we can see Boeing has a reference CAT for each aircraft, and the State uses this.

In the example for the 737-800, you CAN, at 50T, flaps 30, have...
Forum: Tech Log
5th Jan 2013, 03:19
Replies: 76
Views: 160,021
Posted By FlightPathOBN

from Boeing chart MLW for the 737-800 is 146300,...

from Boeing chart MLW for the 737-800 is 146300, in the US, this is 73.15 tons?
Here is the Vref table from the 800 QRH..

Note flaps/speeds for 73.15T.. where does 142kts fit in with MLW?
...
Forum: Tech Log
4th Jan 2013, 22:20
Replies: 76
Views: 160,021
Posted By FlightPathOBN

cleveland... you had it close, but read the...

cleveland...

you had it close, but read the regs very closely...

and I know exactly how each aircraft CAT is determined, and how is is different that the procedure design CAT designation
...
Forum: Tech Log
4th Jan 2013, 16:40
Replies: 76
Views: 160,021
Posted By FlightPathOBN

Airport Reference code is the Approach Cat and...

Airport Reference code is the Approach Cat and wingspan, hence the Cat C-III, with the reference speed for approach.

There is only one CAT allowed per aircraft, that is in all of the criteria.
...
Forum: Tech Log
4th Jan 2013, 15:26
Replies: 76
Views: 160,021
Posted By FlightPathOBN

defacto, Bloggs, The aircraft CAT is set by...

defacto, Bloggs,

The aircraft CAT is set by the manufacturer, and that is worldwide, note the table Boeing table from the previous post....

The CAT is NOT based on MLW, nor max flaps, for that...
Forum: Tech Log
3rd Jan 2013, 15:23
Replies: 76
Views: 160,021
Posted By FlightPathOBN

defacto, You would have to look at your...

defacto,

You would have to look at your particular variant to see what they used as the reference for Vref CAT...usually I see it as the median weight, not MLW, with flaps 30. This sets the...
Forum: Tech Log
1st Jan 2013, 21:25
Replies: 76
Views: 160,021
Posted By FlightPathOBN

For the 737, Vref rule of thumb was based on 40T...

For the 737, Vref rule of thumb was based on 40T and flaps 30.

Then Vref can be est with -1 less/at than 40T and 3 kts above fl30

So at 40T, with flaps 30 equals 40x3-1=119kts as a standard...
Forum: Tech Log
1st Jan 2013, 01:35
Replies: 76
Views: 160,021
Posted By FlightPathOBN

Aircraft are certified by the manufacturer for...

Aircraft are certified by the manufacturer for the Approach CAT.

Vref is based on several factors, with a baseline. Different weight and flap settings influence the actual value, and many...
Forum: Tech Log
30th Dec 2012, 19:08
Replies: 76
Views: 160,021
Posted By FlightPathOBN

The CAT speeds are minimums per segment... ...

The CAT speeds are minimums per segment...

Sorry, but as a wholly owned subsidiary of the US, Canada just scrapes the name tag off the FAA order...

Dont you remember the other post?

From...
Forum: Tech Log
30th Dec 2012, 17:00
Replies: 76
Views: 160,021
Posted By FlightPathOBN

It is similar, in fact is is the same, as Canada...

It is similar, in fact is is the same, as Canada uses the FAA criteria, virtually an exact copy...all of that design criteria that you showed is TERPS...not ICAO 8168...

The approach CAT is based...
Forum: Tech Log
28th Dec 2012, 23:52
Replies: 76
Views: 160,021
Posted By FlightPathOBN

The final segment CAT speed is based on Vref. So...

The final segment CAT speed is based on Vref. So for a CAT C aircraft, speed in the final approach segment can range from 140 to 164 kts IAS.

Other segments have minimum speeds as well per CAT.....
Forum: Tech Log
28th Dec 2012, 21:52
Replies: 76
Views: 160,021
Posted By FlightPathOBN

The CAT certification is by the aircraft...

The CAT certification is by the aircraft manufacturer.

The 8168 final approach CAT is based on the speed of the SEGMENT, FAF to threshold, not crossing the threshold. There are other segment and...
Forum: Tech Log
28th Dec 2012, 19:33
Replies: 76
Views: 160,021
Posted By FlightPathOBN

Here is an FAA reference... SAFO 12005...

Here is an FAA reference...

SAFO 12005 (https://docs.google.com/viewer?url=http://www.faa.gov/other_visit/aviation_industry/airline_operators/airline_safety/safo/all_safos/media/2012/SAFO12005.pdf)
Forum: Tech Log
28th Dec 2012, 17:36
Replies: 76
Views: 160,021
Posted By FlightPathOBN

Italia, I have provided most of the RNP...

Italia,

I have provided most of the RNP procedures used by Westjet in Canada...
NAVCANADA uses TP308 for the design critieria, which is virtually FAA TERPS.
The CAT references are the same as...
Forum: Tech Log
27th Dec 2012, 21:57
Replies: 76
Views: 160,021
Posted By FlightPathOBN

737.. Well, that is also the case...most...

737..

Well, that is also the case...most missed approach procedures are along the lines of straight ahead until 2500 or such...I would not get involved unless it didnt really really work, but the...
Forum: Tech Log
27th Dec 2012, 17:21
Replies: 76
Views: 160,021
Posted By FlightPathOBN

Well, a matter of semantics I suppose. I also...

Well, a matter of semantics I suppose. I also understand there is reality, and one reality is that very few pilots would have a level-off section in the EO missed profile...that is again, the worst...
Forum: Tech Log
26th Dec 2012, 21:38
Replies: 76
Views: 160,021
Posted By FlightPathOBN

a huge difference between a procedure design and...

a huge difference between a procedure design and performance?

I would think they are directly related.

I have worked out many, many missed approach performance profiles, for all kinds of...
Forum: Tech Log
26th Dec 2012, 16:28
Replies: 76
Views: 160,021
Posted By FlightPathOBN

Well, one has to remember, that a procedure...

Well, one has to remember, that a procedure design, has to take into account all of the worst case factors...
MLW, max bleeds, dirty engine, low end of the CAT approach speed, initiation of missed,...
Forum: Tech Log
25th Dec 2012, 21:58
Replies: 76
Views: 160,021
Posted By FlightPathOBN

During actual flight testing of engine out...

During actual flight testing of engine out procedures, it was interesting to note just how difficult it is to make the climb and not violate the missed approach surface, especially if you are...
Forum: Tech Log
21st Dec 2012, 17:20
Replies: 76
Views: 160,021
Posted By FlightPathOBN

original post states EO climb is 2.1%.. 2.5%...

original post states EO climb is 2.1%..

2.5% is gross
2.1% is net

all engine....
Showing results 1 to 21 of 21


 
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