DCS: Black Shark… Technical, Simplified

DCS: Black Shark

SimHQ would like to welcome our Guest Writer for this week-long series, Erik Pierce. Erik has a degree from Embry Riddle Aeronautical Unversity and is an Aerospace Engineer at his daytime job. Erik is fully qualified to provide the technical knowledge about the topics presented here, but unique is his ability to clearly state the technical and provide a sense of humor to support his commentary. Erik carries the handle of “EinsteinEP”, and is a part of the 2 GvSAP Squadron. The fact that he flies with “Dart” in the squadron should not be held against him, or diminish his credibility in any way. Well, not too much.

Series Introduction

The dual rotor concept behind the Kamov Ka-50 “Black Shark” helicopter is both cool and weird. It’s cool that there are two rotors instead of just one. It’s cool that there’s no tail rotor. It’s cool that it’s a single-seat attack helicopter where one guy has to do it all. The thing just looks cool. But, once you start to think about the physics behind it, it starts to get weird…

“If the two rotor disks cancel each other’s torque, and there’s no tail rotor, how does the thing yaw when it’s in a hover?”

“How does the lower rotor work with the downwash from the upper rotor?”

“Why did the blades just fly off my helicopter?”

Figuring out helicopter dynamics is like unraveling a big ball of very sticky yarn. Just as you unravel one big knot, you have to go back and unravel some section you thought you had straightened out a while ago. The unique environment of the coaxial contra-rotating dual rotor assembly makes it an even bigger mess.

SimHQ has published my article in four parts:

Coaxial Rotor Aerodynamics

Trimming the Ka-50 Black Shark

Part 1 – Autopilot

Part 2 – Autopilot

Although there are a bunch left, I’ve managed to unravel a few of the knots, and here’s what I have so far.

– Erik

Russian Air Force Kamov Ka-50 "Black Shark"

Russian Air Force Kamov Ka-50 “Black Shark”
This image is made available under the GFDL and Creative Commons by author Dmitriy Pichugin.


Aircraft Ballast Weights 823582-149 picture

Aircraft Ballast Weights 823582-149

$250.00



Bruce Avionics Ballast Power Supply P/N 03980 picture

Bruce Avionics Ballast Power Supply P/N 03980

$315.00



Weight Tell Boom Ballast 1 Lb PN 47-706-607-7 Bell 47 Helicopter picture

Weight Tell Boom Ballast 1 Lb PN 47-706-607-7 Bell 47 Helicopter

$140.00



Bell 206 Helicopter Weight Ballast picture

Bell 206 Helicopter Weight Ballast

$115.00



Fairchild Hiller OH-23 Helicopter weight ballast New 1560 255 1708 C8071 picture

Fairchild Hiller OH-23 Helicopter weight ballast New 1560 255 1708 C8071

$5.00



ELECTRONIC BALLAST - K100-140-001 - BOEING 737,747,757,767,777 - ACCS007-2 picture

ELECTRONIC BALLAST - K100-140-001 - BOEING 737,747,757,767,777 - ACCS007-2

$1200.00



Phillips XLD 924 HID Ballast power supply equivalent to Cessna/Textron Like new picture

Phillips XLD 924 HID Ballast power supply equivalent to Cessna/Textron Like new

$200.00



Tungsten ballast bar bucking dolly surplus aircraft 1lb. 13 oz. picture

Tungsten ballast bar bucking dolly surplus aircraft 1lb. 13 oz.

$104.99



Bell 206 Helicopter Ballast Mount Support 206-031-205-015 picture

Bell 206 Helicopter Ballast Mount Support 206-031-205-015

$50.00



Bell 206 Helicopter Decal, Max Allowable Ballast 30 Pounds 31-043-102EHF picture

Bell 206 Helicopter Decal, Max Allowable Ballast 30 Pounds 31-043-102EHF

$39.99



Powered by WordPress. Designed by WooThemes