Gazelle Flight Dynamics... Again. - Page 15 - ED Forums
 


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Old 04-28-2017, 10:56 AM   #141
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Originally Posted by FragBum View Post
Thanks, I'm curious to see if there are differences between versions of DCS world so time permitting will have a look.
Well, the main difference is Nevada is at 2.000+ feet above ground level.
In addition, if realistic temps are used by the mission designer it mostly is warmer as it is a desert after all.
So the performance in a different environment is definitely different.
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Old 04-28-2017, 12:26 PM   #142
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Decrypt me please this on page 5&6, paragraphs 13-17 http://www.easa.europa.eu/system/fil...1-07012014.pdf I wish to know, where is located the center of gravity of Gazelle.
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Old 04-28-2017, 01:28 PM   #143
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Originally Posted by MAD_MIKE View Post
Decrypt me please this on page 5&6, paragraphs 13-17 http://www.easa.europa.eu/system/fil...1-07012014.pdf I wish to know, where is located the center of gravity of Gazelle.
My guess would be: (...)"14. Datum: Longitudinal 3m (9,84 ft) forward of main rotor centreline
Lateral aircraft symmetry plane"(...) EDIT. This would be the "ref" mentioned above, I guess.

that is for an unarmed civil Gazelle S-342J, NOT an SA-342M with Viviane (APX 397) sight or an SA-342L with fixed attached GIAT M621 20mm Cannon and Athena(?) sight.

The modelled version in DCS is a SA-342 M with the APX 397 sight and a SA-342L with slightly altered characteristics, though I am not 100% sure if they changed only some details or remodeled the FM for the L and Mistral Version.

Non, of the Versions in DCS is a civilian SA-342J, so the data won't match anwyway.

It may give a "rough" idea about performance, but it can't be accurate, as additional gear (weight/shifted center of gravity) comes with the sights, cables, TV, batteries and the pylon assemblies for the weapons. The L has a fixed cannon mounted on one side.

With the SA-342 being very lightweight, these additional weights will have a considerable impact.
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Old 04-28-2017, 02:58 PM   #144
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Quote:
Originally Posted by MAD_MIKE View Post
Decrypt me please this on page 5&6, paragraphs 13-17 http://www.easa.europa.eu/system/fil...1-07012014.pdf I wish to know, where is located the center of gravity of Gazelle.
Quote:
Originally Posted by shagrat View Post
My guess would be: (...)"14. Datum: Longitudinal 3m (9,84 ft) forward of main rotor centreline
Lateral aircraft symmetry plane"(...) EDIT. This would be the "ref" mentioned above, I guess
The datum and CoG limits are shown diagrammatically in the Gazelle Weights and Balances Appendix WB1, page 198 of the SA-341G manual


AFAIK the Gazelle body is effectively a suspended load hanging from the rotating main rotor/masthead. Appendix includes a list of loading options and equipment weights but obviously does not include the Viviane Camera, HOT3, etc.
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Old 04-28-2017, 03:42 PM   #145
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Originally Posted by Ramsay View Post
The datum and CoG limits are shown diagrammatically in the Gazelle Weights and Balances Appendix WB1, page 198 of the SA-341G manual


AFAIK the Gazelle body is effectively a suspended load hanging from the rotating main rotor/masthead. Appendix includes a list of loading options and equipment weights but obviously does not include equipment like the Viviane Camera, HOT3, etc.
Looks about right. I would expect the Viviane to change it away from the Cabin Floor and a bit left and to the Front...
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