X-Plane 12 · Airliner

Boeing 737-800 (Zibo Mod) Quick Reference

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V-SPEEDS

Speed	Value	Description
V1 / VR / V2	FMC computed	Weight, flap and thrust dependent - CDU TAKEOFF REF
VREF	FMC computed	Flap dependent - CDU APPROACH REF
Approach speed	VREF + 1/2 headwind + gust	Not more than VREF + 20
Approach speed (tailwind)	VREF + 5	Tailwind component
Flaps 5 placard	250 kt	Upper zipper on the speed tape
Flaps 15 placard	200 kt	Next gate after flaps 5
Flap load relief 30 to 25	176 kt	Flaps 30 loads back to 25
Turbulent air penetration	280 kt / M0.76	Whichever is lower; 250 kt below 15,000 ft
Max demonstrated crosswind	33 kt	Demonstrated value, not a certified limit

POWER SETTINGS

Phase	Setting
Unreliable airspeed - flaps extended	10 deg pitch and 80% N1 (gear up)
Unreliable airspeed - flaps up	4 deg pitch and 75% N1 (gear up)
Fan blade ice shedding	80% N1 minimum for 1 second
Engine failure - initial reference	Set the two-engine total fuel flow existing at failure
Go-around	TO/GA; push a second time for full go-around thrust
Engine-out at high altitude	Maximum continuous thrust, pitch for airspeed
Severe turbulence	A/T off, autopilot CWS, start switches FLT, yaw damper ON, 280 kt / M0.76

FLAP SCHEDULE

Setting	Max Speed	Use
Flaps 1	Takeoff	Authorized takeoff setting.
Flaps 2	-	NOT authorized for takeoff.
Flaps 5	250 kt placard	Authorized takeoff setting. Standard first extension gate on approach.
Flaps 10	Takeoff	Authorized takeoff setting. Speedbrakes must not be used beyond flaps 10.
Flaps 15	200 kt placard	Authorized takeoff setting. Go-around flap from a flaps 30 or 40 approach.
Flaps 25	Approach	Authorized takeoff setting. Preferred step between 15 and 30 - the extra drag helps avoid flap load relief.
Flaps 30	176 kt load relief	Landing flap.
Flaps 40	Landing	Landing flap.
Extension sequence	10-15 kt above maneuver speed	Standard gates in sequence 1, 5, 15, 25, 30/40. Do not use flaps as a drag device.

ENGINE LIMITS

Parameter	Value
N1 redline	104.0% (104.7% for 20 sec)
N2 redline	105.0%
EGT max takeoff / go-around	950 degC (5 min)
EGT max continuous	925 degC
EGT max ground start	725 degC
Oil temperature	155 degC max; 140-155 degC for 45 min; 140 degC max continuous
Oil pressure min	13 psi
Starter duty cycle - normal start	2 min ON, 10 sec OFF between attempts
Starter duty cycle - motoring (fuel off)	15 min
Idle before takeoff thrust	2 min after rollback (5 min on the first flight of the day)
Idle before shutdown	1 min minimum (3 min when conditions permit)
Abort the start if	EGT does not increase within 15 sec of the start lever reaching IDLE detent
Min dispatch oil quantity	60% from a non-maintenance station, 70% from a maintenance base

KEY NUMBERS

Parameter	Value
Max operating altitude	41,000 ft
Max takeoff and landing pressure altitude	8,400 ft
Max takeoff and landing tailwind	15 kt (specific performance data required over 10 kt)
Runway slope	+/- 2%
Takeoff flap settings authorized	1, 5, 10, 15, 25 (flaps 2 not authorized)
Reverse thrust in flight	Prohibited
APU max altitude - operation	41,000 ft
APU max altitude - bleed air only	17,000 ft
APU max altitude - bleed and electric	10,000 ft
APU start attempts	Wait 90 sec between attempts; no fourth attempt
APU before use as a bleed source	2 min after it stabilizes
APU before battery OFF	Approx 2 min after the APU GEN OFF BUS light extinguishes
Center tank pumps OFF in descent	Approx 3,000 lb (approx 1,400 kg) center tank quantity
Landing crosswind guidelines (guidelines, NOT limitations)	Dry 40 kt, wet 40 kt, snow no melting 35 kt, standing water or slush 20 kt, ice no melting 17 kt
Engine-out glide	Approx 30 NM per 10,000 ft at 220 kt

Raimond Spekking / Wikimedia CommonsCC BY-SA 4.0

Airliner1990s

AIRCRAFT BRIEF

The Boeing 737-800 is the best-selling variant of the 737 Next Generation family. Entering service in 1998, it became the workhorse of short-to-medium-haul routes worldwide and over 4,900 were delivered. The Zibo Mod is a free, community-built rework of the Laminar Research 737-800 that ships with X-Plane, and it is the aircraft most X-Plane pilots fly the type in. Its own documentation describes a custom autopilot with LNAV and VNAV, a modelled IRS, bleed air, hydraulic and fuel systems, GRD / CONT / FLT engine start logic and an APU with start delay and cooldown.

RANGE VISUALIZER

Startup Walkthrough

SPECIFICATIONS

manufacturer: Boeing
first Flight: 1997
role: Narrow-body airliner
crew: 2 pilots + cabin crew
engines: 2x CFM56-7B (up to 27,300 lbf each)
max Speed: 842 km/h (Mach 0.785)
range: 5,765 km (3,115 nmi)
ceiling: 41,000 ft
weight: 79,010 kg (MTOW)

Sources: Boeing 737 Next Generation - Wikipedia, Southwest Airlines B737 Normal Checklist (NTSB docket DCA24LA330), SWA B737NG Non-Normal Quick Reference Card (NTSB docket DCA18MA142)