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Search: Posts Made By: Old Smokey
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Forum: Tech Log
20th Aug 2018, 08:33
Replies: 21
Views: 2,814
Posted By Old Smokey

Quick off the mark there P.A.! Great to see you...

Quick off the mark there P.A.!
Great to see you as my first respondent for 5 years!

Best Regards,

Old Smokey
Forum: Tech Log
20th Aug 2018, 07:41
Replies: 21
Views: 2,814
Posted By Old Smokey

Assuming zero geometric error (e.g. Your Rad /...

Assuming zero geometric error (e.g. Your Rad / Alt transmitter to the upper part of the "Target" aircraft below would be less than 2000 ft, any rounding down of the digital read-out (Rad / Alt...
Forum: Tech Log
23rd May 2013, 00:37
Replies: 5
Views: 2,007
Posted By Old Smokey

Airbus Logic

If Airbus were to write bomb disarming manuals, it would go something like this -

First Line - CUT THE RED WIRE

Then a few acres of words, followed by -

Last Line - Be sure to cut the blue...
Forum: Tech Log
21st May 2013, 14:30
Replies: 47
Views: 9,793
Posted By Old Smokey

Defer dog, Maximum range cruise...

Defer dog,

Maximum range cruise categorically is well above max L/D ratio speed. This speed (with very Minor adjustment) is more representative of Max Endurance / Best angle of climb / Minimum...
Forum: Tech Log
14th May 2013, 10:15
Replies: 13
Views: 8,691
Posted By Old Smokey

mcdhu, AI haven't come up with ANY crosswind...

mcdhu,

AI haven't come up with ANY crosswind limits (excepting Auto-Land considerations) for any A320. There's a whole bunch of maximum DEMONSTRATED crosswinds encountered, but thus far the only...
Forum: Tech Log
11th May 2013, 14:30
Replies: 13
Views: 8,691
Posted By Old Smokey

One example - For 40 degrees C and 2000 ft...

One example - For 40 degrees C and 2000 ft Pressure height and at Maximum Landing Weight (Structural), One Engine Inoperative Approach Climb Gradients -

Standard A320 = 4.7%
Sharklet A320 = 5.2%...
Forum: Tech Log
11th May 2013, 14:20
Replies: 65
Views: 18,054
Posted By Old Smokey

For ANY aircraft fitted with Flight Path Angle /...

For ANY aircraft fitted with Flight Path Angle / Flight Path Vector indication (or "The bird" on your A320), multiply the Climb (or descent) gradient in % by 0.6 to convert to degrees. The FPA/FPV...
Forum: Tech Log
19th Jul 2012, 03:57
Replies: 8
Views: 2,495
Posted By Old Smokey

Quick answer on the run. Rarely would it be...

Quick answer on the run.

Rarely would it be maximum RPM, that usually doesn't limit thrust until quite high Altitudes.

More typically, Flat Rated Thrust will be Pressure limited, until such...
Forum: Tech Log
18th Jul 2012, 01:01
Replies: 24
Views: 6,097
Posted By Old Smokey

Hi Mutt, Thanks for the correction, it seems...

Hi Mutt,

Thanks for the correction, it seems that I'm correct for the 'small picture' of the Takeoff in isolation, but didn't address the 'big picture' of the entire flight profile. I must admit...
Forum: Tech Log
17th Jul 2012, 05:19
Replies: 61
Views: 8,370
Posted By Old Smokey

It's a de-facto Metric Unit

I'm surprised that someone hasn't raised the point that the Nautical Mile is ESSENTIALLY a Metric unit, being defined as EXACTLY 1852 M, and equal to 1 minute of arc of latitude. Degrees, Minutes,...
Forum: Questions
16th Jul 2012, 09:24
Replies: 12
Views: 3,218
Posted By Old Smokey

Serious, non tongue in cheek reply, just what are...

Serious, non tongue in cheek reply, just what are the changes in the Jet Steam that we witness today ?

I've only been flying for 46 years, and, apart from normal cyclic changes alluded to by...
Forum: Tech Log
16th Jul 2012, 08:55
Replies: 24
Views: 6,097
Posted By Old Smokey

In most circumstances it does save fuel. Takeoff...

In most circumstances it does save fuel. Takeoff thrust is typically at N speed above Optimum Thrust Specific Fuel Consumption (TSFC), thus any reduction to or towards Optimum TSFC N will use less...
14th Jul 2012, 03:35
Replies: 40
Views: 12,654
Posted By Old Smokey

PA, Well so long as somebody knows, I guess...

PA,

Well so long as somebody knows, I guess it's alright:ok: You seem to have a pretty good grip on these things, so I'm much assured:D

Check your PMs PA,

Best Regards,

Old Smokey
12th Jul 2012, 13:15
Replies: 40
Views: 12,654
Posted By Old Smokey

Hurricane6, It seems you're in the process...

Hurricane6,

It seems you're in the process of winding up your thread, a pity, I was enjoying it.:ok:

Before you wind it up, a word or two here which may shed light on your search for P/S,...
9th Jul 2012, 11:39
Replies: 40
Views: 12,654
Posted By Old Smokey

Pugilistic Animus, BOAC, Thanks gents for...

Pugilistic Animus, BOAC,

Thanks gents for providing the link to some of my old 'work', that's going back a bit now.

Hurricane6, I regret that there's not going to be any simplification of the...
Forum: Tech Log
4th Jun 2012, 08:44
Replies: 9
Views: 1,642
Posted By Old Smokey

It was done recently J_T, in an airline near you....

It was done recently J_T, in an airline near you. That's probably why the question came up.:uhoh:

Best Regards,

Old Smokey
Forum: Tech Log
31st May 2012, 05:15
Replies: 33
Views: 4,624
Posted By Old Smokey

Are we overlooking the obvious here? As...

Are we overlooking the obvious here?

As temperature increases, the Limiting Takeoff Weight (or Regulated Takeoff Weight) reduces. That's normal for pretty much every aircraft flying. Reduced...
Forum: Tech Log
24th May 2012, 19:00
Replies: 20
Views: 4,397
Posted By Old Smokey

True, reynoldsno1, the waypoint STAR sequence for...

True, reynoldsno1, the waypoint STAR sequence for Brisbane RWY19 is LEAKY : BOATS : SINKK. From the opposite direction, also terminating at SINKK is DRAIN : PLUGG : SINKK.

Good that someone has a...
Forum: Tech Log
18th May 2012, 04:40
Replies: 26
Views: 3,902
Posted By Old Smokey

This is a bit basic, isn't it?

Minimum Trip Fuel is achieved at Maximum Range Cruise. This is achieved at Cost Index = 0, both Airbus and Boeing. This is FULLY compensated for Wind Input (both manufacturers).

Long Range Cruise...
2nd Jan 2012, 05:00
Replies: 129
Views: 23,881
Posted By Old Smokey

dinophyler, These are the good ol' days. The...

dinophyler,

These are the good ol' days. The aircraft that you fly now will one day be in a museum or on a pole, for the next generation to wish for the good ol' days:ok::ok:

My turn :

Best...
Forum: Tech Log
29th Dec 2011, 04:06
Replies: 9
Views: 4,791
Posted By Old Smokey

Hi ATR, If you want a 'ballpark' figure for...

Hi ATR,

If you want a 'ballpark' figure for Mcrit (ballpark but a pretty good one), Mcrit is typically at or slightly below the Climbing Mach Number. For example, if the aircraft climbs at M0.74...
Forum: Tech Log
24th Dec 2011, 14:06
Replies: 9
Views: 4,791
Posted By Old Smokey

[B]Dariuszw, You asked - Can you tell me one...

[B]Dariuszw,

You asked - Can you tell me one airline or commercial aircraft which flies above Mcrit as normal operation ?

All of them, as long as we're talking about Jet high altitude...
Forum: Questions
24th Dec 2011, 13:21
Replies: 35
Views: 10,217
Posted By Old Smokey

Dariuszw, Thank you most sincerely for...

Dariuszw,

Thank you most sincerely for adding me to your ignore list, now that is indeed a compliment!:ok:

For the record before leaving this thread forever, yes, I do indeed accept it as truth...
Forum: Questions
24th Dec 2011, 10:07
Replies: 35
Views: 10,217
Posted By Old Smokey

Hey, SSG, Dariuszw, and all of your offspring,...

Hey, SSG, Dariuszw, and all of your offspring, have I got an early Christmas present for you!:ok:

It's called Reduced Thrust (or Flex as your fellow Europeans from the Poznan region would call...
Forum: Tech Log
24th Dec 2011, 09:10
Replies: 9
Views: 4,791
Posted By Old Smokey

Consider this - For a given speed profile...

Consider this -

For a given speed profile such as Maximum Range Cruise (MRC), and for a given weight (mass), then for every level flown, there is an optimum speed. This will be a constant...
Showing results 1 to 25 of 1000
 


 
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