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Sokol1

Wind Angle & DR-3

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Dreieckrechner DR-3 "Triangle Calculator"

 

Online Flash version:

 

http://www.pumaszallas.hu/Private/VO101_Tom/Flash-DR3/DR3v10.htm

https://clodtools.weebly.com/

 

Practical test:

 

219752u.jpg

 

Plane heading: 130º

Wind coming from: 282º

 

Adjust: 150  on right side of bombsight instrument

 

DR-2_Wind.gif

 

Adjust: 150  on right side of BoS bombsight instrument.

Edited by Sokol1
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Using in game with STEAM Browser:

Plane heading: 103º

Wind coming from: 214º

 

1537jo7.jpg

 

Wind correction: 110º (right side).

 
For use DR-2 in a local (HDD) file, type this as url.
 
file:///E:/DR-3/DR-3.html
 
 
Edited by Sokol1
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BTW - In the above picture the Wind Angle adjust need be in the right side.  :P

Edited by Sokol1

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yes: you fly down to 180° the wind come from 261° so the Wind- Airplane angle is 081° right side

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OK. Let's do a flight plan with these parameters.  :)

 

Plane heading: 130º

Wind coming from: 282º

Plane speed: 340 KM/H (IAS)

Flight altitude: 3.500m

 

First is need know the TAS (True Air Speed). 

 

IAS: 340 KM/H

Altitude: 3.500m

OAS (Outside Air Temperature): -30º (Look at the thermometer on He 111 cockpit ceiling)

 

On DR-2 set IAS against OAT (340 > -30º) and read TAS under Altitude - (3.5 > 385)

 

WA01.jpg
 
Now set the Wind Angle Correction over TAS (80 > 385)
 

WA02.jpg

 

Move the cursor for  Wind Speed (KM/H) and read the Course Correction (Drift Angle) on outside scale (47 > 7):
 
"9 proof" with modern "gadget":
 
WA04.jpg
 
 
not-bad.jpg
 
So to keep the True Course of 180º, follow the HDG 187º .
 
Disclaimer: Do not blame me if you get lost. 
 
;)
Edited by Sokol1

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ohh noooo .. yer gonna make me get my E6b out .. I just know it.

-grin- ..it's buried on a shelf somewhere with pilot's log an all that 'stuff' .. -looks over at crammed shelves- ..-sigh-

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