My CEM settings for those having difficulties

[CreepiJim]

From the manual of the Ju-87 D-1 to D-3 (taxiing, take-off, cruising, dive, landing)

 

Pre-Flight check:

 

- Close canopy

- trim to zero

- flaps to "Reise-Steigen"

- Airbrake to "Einziehen"

- Prop pitch to "max RPM"

- tail wheel unlocked

- Supercharger to "Automatic"

 

Taxiing:

 

- Water radiator fully open

- Oil radiator fully open

- flaps to "Start"

- RPM for taxiing: n = 1600-1800 1/min

 

Flight:

 

- align tail wheel and lock

- flaps to "Start"

- Prop pitch to "max RPM"

- throttle up to max

- counter tourque with rudder right

- 1min nmax= 2600 +20/-50 1/min; pmax=1,40 ±0,03 ata

- take-off weight 5850kg runway for take-off 500m @ 155 km/h (740m for 20m altitude)

- take-off weight 6600kg runway for take-off 700m @ 165-170 km/h (1000m for 20m altitude)

 

Airborne:

- directly after take-off reduce to n=2400 1/min; p= 1,25 ata (for 30minutes)

- flaps to "Reise Steigen" @ va=180 km/h in 200m altitude (nose drops)

 

Velocity for best climb:

 

- 200-210 km/h (with 5300kg 210 km/h; 5800kg 220 km/h; 6600kg 230 km/h; without bombs 4800k g 200 km/h)

- after 30 minutes the latest throttle to continous power n=2250 1/min; p=1,15 ata (up to 6500m altitude) above 6500m n=2400 1/min

- Supercharger from "Bodenlader" to "Höhenlader" at 3000m altitude (Höhenlader=pushed; Bodenlader=pulled)

 

Water temperatures:

- 110°C@ 1km alt

- 100°C @ 4km alt

- 90°C @ 8 km alt

 

- at 120°C steam is visible on the right side of the cockpit window (not implemented?)

- 120°C for max. 10 minutes, do not throttle down quickly for condensating

 

Oil temperatures:

>30°C (without cold start preparations)

< 105°C (short time only)

Nominal: 80°C-90°C

 

Oil pressure:

<5,5 atü

>9 atü

- at least 4 atü at full pressure altitude (Höhenlader @ n=2400 1/min, 60-70°C oil temp)

 

fuel pressure:

> 1 atü

< 2 atü (max short time value 2,2-2,3 atü)

 

cruise flight:

- n=2250 1/min; p=1,15 ata up to 6500m; n=2400 1/min; p= 1,15 above 6500m

- recommended economic flight n= 1900 1/min; p=1,0 ata

 

oil consumption:

n= 2250 1/min; p=1,15 ata : 10l/h max.

 

pre-dive preparations:

- open floor window

- do not dive more than 90° (check wind direction)

- do not dive without divebrakes

- flaps to "Reise Steigen"

- elevator trim to "Reise"

- rudder trim to "Reise"

- RPM to 2250 1/min

- supercharger to "Automatic"

(- activate siren)

- throttle to p=0,8 ata

- close radiators

- extend divebrakes (red indicators on both wingroots)

 

dive speeds:

- with 1000kg bomb in 90° dive with n= 2250 1/min va=570 km/h

- with n=1800 1/min va=590 km/h

- with 1800kg bomb @ 70° dive n=2250 or 1800 1/min va=600 km/h

- dive speed will be reached after a 2500m dive

 

- max dive speed with air brake: 600 km/h up to 2km altitude; 550km/h above 2km altitude

 

- elevator trim can be set to slight "nose down" to keep the dive

- ailerons and rudder can be used to correct dive

- recover with bomb load possible with 5g (1000kg) or 4,3g (1800kg)

 

post-dive procedures:

 

- retract divebrake

- open radiators

(- disable siren below 350 km/h)

- throttle to 2400 1/min; p= 1,25 ata (emergency power n=2600 1/min; p=1,40 ata)

 

landing:

 

- n=2250 1/min at 150-160 km/h

- required airstrip 400m against wind

 

engine shut-off:

 

- open radiators

- with high water temperatures throttle to 1200-1400 1/min; p=0,7 ata

- rpm to minumum at 1200 1/min

- shut down engine

 

speed of best glide:

 

- 160 -180 km/h without bombs

- ideally 175 km/h

- best vector 1 :12

- flaps to 25°

[Bando]

Thx!!!