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Sikorsky S76A, S76B and S76C Models
by Ian Standfast 21.2.2001
November 2000 revisions
Animated rotors, revised textures.
Designed using Abacus' AF99.
Moving parts produced using Konstantin Kukushkin's superb Aircraft Animator.
Thanks for downloading this file, this is a representation one of the most elegent helicopters ever produced. Very sleek and fast with superb lines and performance. Designed by Sikorsky in response to market research carried out for off-shore operators, it is widely used as a corporate executive transport and people mover all over the world.
Thanks to Roger Pugh for the loan of his beautiful 1/28th scale S76B in the colours of KLM ERA while I was producing this aircraft.
There has been some delay in revising my S76 range of aircraft as there were certain things in the design and display that I could not get right. These models now display well in FS2000 but there are a few little glitches in FS98. As I do not want to keep people waiting any longer I have given up trying to solve all the problems. So here are the revised S76s.
This text file will be the same for all of the new S76s as I do not want to write out loads of individual details. Each of the revised ships is as close as I could get to the original done back in the days of FS95/6. The files are set for FS98, but as I figure most folks will now be using FS2000, I have done Fs2000 panels (available separately) and air files, included in this zip.
This aircraft comes already configured for FS98. Unzip the file and place the aircraft folder in the aircraft directory of FS98. It utilises the standard fs98 Bell panel which is already configured within the file and should work as long as you have not renamed the original bell 206 in FS98. There is a Sikorsky S76 panel with sounds available in the panel and sounds section of Keiths Virtual Helipad. http://members.aol.com/keitht777/helipad.html
For FS2000, place this helicopters folder in the FS2000 aircraft directory, then replace the the .air file with the one contained within the folder called FS2000 air. This FS2000 air file has been optimised for FS2000.
There is an FS2000 S76 panel available in both basic and Pro versions. The FS2000 version of this helicopters panel is available from Keiths panel and sounds page..
For FS98: I have modified the air file to remove the unrealistic cross couple effect between the lateral cyclic and yaw pedals. (The original Bell model in FS98, although very good, produces a very unrealistic fuselage roll when pedal is applied in either direction.) However, here is a downside to this, you will find that you have a lot more yaw authority in the hover, and it only diminishes at speeds approaching 60kts, but I find this more realistic. So you may end up doing a bit of a Huey shuffle on your first few flights, but you should get the hang of it pretty quickly. The only real problem with the airfile is that if you hold in huge amounts of pedal for a few seconds, the ship will go into an irrecoverable rotation, then break. For the best handling, I suggest you turn all your control sensitivities to their full value, and reduce the null zones to their minumum.
For FS2000: I have tried to get the best performance in terms of response and stability at these settings with the aircraft realism turned up all the way. Personally I prefer to fly this ship with the sensitivities for the cyclic and yaw pedals turned all the way up, throttle sensitivity is set low to midway. I also set the null zones to zero on all controls except the ailerons, where six notches from the left hand side of the scale seems to give a good roll stability in forward flight without causing handling problems in the hover.Then adjust the realism setting to your prefered value.
With this S76 file I have tried to get a nice stable machine in the hover with good response rates at higher speeds, this aircraft will do very clean rolls and loop given enough altitude and speed, but still remains very stable during the cruise.
To loop the S76, attain straight and level flight at 1500ft, above 130kts, this usually needs 80% torque. Pull all the collective in, and at the same time pull the cyclic all the way back, hold it there and wait! As the heli comes down the back side of the loop, lower the collective slightly so that you do not balloon the ship at the bottom.
To Roll the S76, fly no lower than 500ft at a speed above 130kts. Raise the nose 10 degrees than roll hard to the left, you may need some left boot on the last quarter of the roll to keep the nose from dropping to much.
I hope you all enjoy it.
Ian Standfast
SPECs
these are pretty general as there are several variations
of this aircraft.
Manufacturer: Sikorsky
Type: S76A and S76B
First flight: March 13th 1977.
First delivery Feb 27th 1979
(Air Logistics of Lafayette, Louisiana)
Engines: 76A - 2x 682shp Allison 250-C30S turboshafts
or 76B - 2x 1033shp Pratt & Witney PT6
Rotor diameter: 44ft
Length Rotor turning: 52ft
Height: 14ft 5inch
Gross weight: 10,300lbs
Max speed: 167mph - 269km/h at sea level
(I have set the overspeed for this figure)
Range: Max range 465miles - 748kms
Capacity: 2 crew and 12 passengers
All my ships are available on Keiths Virtual Helipad)
http://members.aol.com/keitht777/helipad.html
If you have any comments about any of my aircraft,
Please E-mail me at 106071.2027@compuserve.com
Ian Standfast
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Copyright C. Ian Standfast 2001
Legal stuff:
THIS IS FREEWARE.
THIS AIRCRAFT IS THE PROPERTY OF THE AUTHOR, AND CANNOT BE
RE-SOLD OR PACKAGED WITH ANY PRODUCT FOR SALE, WITHOUT THE
EXPRESS WRITTEN PERMISSION OF THE AUTHOR. THIS TEXT FILE MUST ALWAYS BE TRANSPORTED WITH THE AIRCRAFT IF IT IS RE-ZIPPED AND UPLOADED TO OTHER FORUMS/WEB SITES.
THE AUTHOR IS NOT LIABLE FOR ANY LIABILITIES THAT YOU MIGHT
INCUR AS A RESULT OF USING THIS PRODUCT. YOU ASSUME THE RISK
OF USE.
