PMDG 739 - Is this realistic ?

[pmplayer 9,817]

25 minutes ago, Bobsk8 said:

An airline 737 first officer answered your question on the PMDG forum. 

Thank you, i take a look there !

cheers 😉

[pmplayer 9,817]

4 minutes ago, F737MAX said:

It's the opposite to that.

Less thrust = longer climb.

 

Source: http://www.b737.org.uk/fmc.htm

So what ?  If i had used CLB normal i would be better ? ( less NM to 33000feet to stay by my example ? )

cheers 😉

[F737MAX 5,938]

12 minutes ago, pmplayer said:

So what ?  If i had used CLB normal i would be better ? ( less NM to 33000feet to stay by my example ? )

cheers 😉

Yes. 'CLB normal' gives a better climb rate than CLB-1 or CLB-2 as there is more thrust available. This means you'll take fewer nautical miles across the ground to reach cruise altitude.

Just leave the N1 in 'Auto' on the N1 Limit page of the FMC:
http://www.b737.org.uk/images/fmc_n1limit.gif
 

Again, as pointed out on the PMDG forums, atmospheric conditions will play a large role in how long it takes to reach cruise.
If you experience warmer temperatures, it means the air is less dense. Therefore, climb performance is degraded, meaning it takes more nautical miles to reach FL330.
 

Edited September 10, 2023 by F737MAX

[pmplayer 9,817]

13 minutes ago, F737MAX said:

Yes. 'CLB normal' gives a better climb rate than CLB-1 or CLB-2 as there is more thrust available. This means you'll take fewer nautical miles across the ground to reach cruise altitude.

Just leave the N1 in 'Auto' on the N1 Limit page of the FMC:
http://www.b737.org.uk/images/fmc_n1limit.gif
 

Again, as pointed out on the PMDG forums, atmospheric conditions will play a large role in how long it takes to reach cruise.
If you experience warmer temperatures, it means the air is less dense. Therefore, climb performance is degraded, meaning it takes more nautical miles to reach FL330.
 

OK, got it now, Thanks !

You never stop learning..

cheers 😉

Edited September 10, 2023 by pmplayer

[Stearmandriver 2,343]

Yes, the degree to which you reduce your takeoff power setting will determine if you get a reduced climb setting or not.  If you do and you don't want it btw, you can delete in on the N1 page... just line select "delete" and drop it on the climb 1 or climb 2 setting.  I think that works in the PMDG, but that's how we do it in reality if asked to expedite a climb, for instance.

[Fiorentoni 4,582]

6 hours ago, pmplayer said:

This was the simbrief setting..

And i think it is not to high - what is usual be used ?

cheers 😉

Simbrief has no cost index databank or something, it will use the scheduled block time and create the cost index out of it with a simple calculation. Try it yourself: The lower the scheduled block time you set, the higher the cost index.

Common 737 cost indices (yep, that's the plural) these days with the high fuel prices are between 0 and 20, with most operatores being closer to 10 than to 20. Even ten years ago they were maybe 35 at max for premium airlines.
However, if you doubt it's too high just take a look at the calculated climb speed in the FMC. It will have been about 320 kts; however the best rate of climb for the 737 is about 275 kts. Above that your climb rate will decrease and with a high TOW it will decrease significantly.

[cavaricooper 2,615]

An airline Captain answered your questions here 😉

[g-liner 408]

On 9/10/2023 at 1:21 PM, Bobsk8 said:

Might want to ask this on the PMDG 737 forum. They have a real 737 airline pilot there that can probably give you an answer.

I find the real 737 (and other)  pilots on here give more accurate and unbiased feedback than the PMDG forum generally. Obviously sometimes it’s the same people but there’s definitely some PMDG forum ‘experts’ overstating their expertise imho. 
 

Plus anything vaguely critical seems to get shouted (or just shut) down by the PMDG fans. . . even more than on here. 

Edited September 13, 2023 by g-liner

[Bobsk8 13,056]

6 minutes ago, g-liner said:

I find the real 737 (and other)  pilots on here give more accurate and unbiased feedback than the PMDG forum generally. Obviously sometimes it’s the same people but there’s definitely some PMDG forum ‘experts’ overstating their expertise imho. 
 

Plus anything vaguely critical seems to get shouted (or just shut) down by the PMDG fans. . . even more than on here. 

There are several real 737 pilots on the PMDG forum that give very accurate information. 

[Claudius_ 338]

34 minutes ago, g-liner said:

I find the real 737 (and other)  pilots on here give more accurate and unbiased feedback than the PMDG forum generally. Obviously sometimes it’s the same people but there’s definitely some PMDG forum ‘experts’ overstating their expertise imho. 
 

Plus anything vaguely critical seems to get shouted (or just shut) down by the PMDG fans. . . even more than on here. 

You right, sometimes I had the same problems with the PMDG forum concerning the DC-6, now considered almost an abandonware. But the official moderators listen to the users and I have a good opinion about them, the problem comes from the supposed real pilots and experts (word not allowed, is the real definition), where you get shouted or just shut if you have a different opinion. Also, you are obliged to write down your real name there and I refused to do it deleting my sign because google is indexing and I don't want my real identity associated with flight simulators.

[Sonosusto 737]

55 minutes ago, Claudius_ said:

You right, sometimes I had the same problems with the PMDG forum concerning the DC-6, now considered almost an abandonware. But the official moderators listen to the users and I have a good opinion about them, the problem comes from the supposed real pilots and experts (word not allowed, is the real definition), where you get shouted or just shut if you have a different opinion. Also, you are obliged to write down your real name there and I refused to do it deleting my sign because google is indexing and I don't want my real identity associated with flight simulators.

I find that using Simbrief is helpful for casual types like myself but I often have to scratch in a great deal into the fmc to get it to my liking. Step climbs, for example, are easier on simbrief to load in. But my downfall seems to be trying to figure out the weights etc before loading everything up.

As far as the "other" forum? I have no experienced that but then again I usually just go here for information or to help others.

And yeah....the DC-6 needs some work. It was my absolute favorite plane until several updates ago.