Boeing 737-800 Tutorial

#1

737-800.

Weight: Normal.

Flaps &Trim:
10° w/14% trim: long runway.
15° w/10% trim: short runway.

Trim:
A/P-Manual: 15% (and flaps 30°). Hold device to the calibration position.
Landing: 145kts, 22%.

Flaps and altitudes:
0°: 250kts.
1°: 225kts.
5°: 215kts.
10°: 200kts.
15°: 190kts.
25°: 175kts.
30°: 167kts.
40°: 155kts (bad weather/company policies).
Landing speed:
145kts with 22% trim. A/P SPD configured to 145kts from 175kts.

Flare: 30ft.
Idle throttle: 10ft.

P.S: I’m open to constructive criticism.

33 Likes
How to use flaps in the right airspeed (Tutorial)
#2

The 737 has to be my favorite jet in the sim.

9 Likes
#3

Thanks for the help. The 737 is a plane that can be used almost everywhere in IF.

7 Likes
#4

This post was flagged by the community and is temporarily hidden.

#5

On long runways I use 10°.

#6

I use extreme flap settings…15-20 degrees or 2-3 on Airbus A320 family

1 Like
#7

For short takeoffs?

#8

yes(filler)

#9

@Sturmovik… Max Sez… Well done and well chosen pen name.
Штурмови́к, Šturmovík, IL-22M, the Flying Tank. Now there a Soviet Design beyond compare.

2 Likes
#10

Thanks for adding this.

2 Likes
#11

Typical flaps setting for take-off is 5 rather than 10 or 15, although obviously 10 or 15 are usable.

Also the flap extension limits are:
Flaps 1………………………………………………. 250 kt
Flaps 2………………………………………………. 250 kt
Flaps 5……………………………………………. 250 kt
Flaps 10……………………………………………. 210 kt
Flaps 15………………………………………………200 kt
Flaps 25………………………………………………190 kt
Flaps 30………………………………………………175 kt
Flaps 40………………………………………………162 kt

Maximum altitude for flap extension is 20,000ft. Other than that limit I don’t think there are any altitude restrictions for any flaps settings - although it is unlikely you want to fly around at flaps 30 when at 15,000ft!

3 Likes
#12

Im defintelty not trying to day your wrong but from my experience i would say maybe do i dont do flaps 5 for departure and for the speeds i would do it a little lower speeds but hey this is a basic sim so it all depends in weight and etc… Nice job

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#13

Because they produce less drag, better acceleration, better fuel consumption, and produces less noise, both flaps 1 and 5 are used by Airlines.

Flaps 1, 5 and 15 are normal takeoff flaps but 15 is rarely used. Flaps 10 is not a normal flap setting for takeoff. The flaps and takeoff thrust settings are all calculated by the load controllers based on weight, weather, runway length and obstacle clearance. One day you might use flaps 1 and the next on the same runway use flaps 5.

American Airlines and Westjet almost always use flaps 1 for take off.
Continental, United, SWAT, KAL and Alaska pretty much always use flaps 5 for takeoff.

Flaps 25 takeoffs are regularly used in Rio de Janeiro and common for Maui.

3 Likes
#14

@Carson please move it to Tutorials again. I don’t have a high enough rank to do it myself.

1 Like
#15

I moved it to the Tutorial Category :)

1 Like
#16

Thanks (filler).

#17

I always use 10 degrees flap for takeoff. The 738 is surely my favourite aircraft on IF.

But for the Boeing 737, are flaps 40 degrees only used for emergency? I seem to extend flaps all the way to 40 degrees during landing sometimes.

Here is what I noticed during landing for the Boeing 737-800:

With Flaps 30 - AOA at around 2.5 degrees, vertical speed around 700-800ft/min = 150-152knots (50% load)

With Flaps 40 - AOA 2.5 degrees, VS around 700-800ft/min = 140-142knots (50% load)

#18

Flaps 40° aren’t used because they have a higher fuel consumption and make the plane noisier.

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#19

Also try using 30% trim for landing at 145kts at normal weight. And for 150 use 28%.
I’m looking for the best landing speed.

#20

Flaps 40 are recommended for CAT III autolands since you get better visibility due to the lower nose up pitch.

1 Like