ARIANE 6 European Rockets (flights VA262 to 266 and generic model) v.260519

There's a bug I hadn't noticed in the "Ariane 6 Rockets" add-on (with flight VA262). Two scenarios aren't working. They are:

• v262 4- Satellites jettison
• v262 5- Capsules jettison

It'now fixed

I've also made some improvements for the Ariane 6 rocket (all versions) :

• the exhaust direction of the boosters during separation (it was directed in the wrong direction) is fixed
• The texture of the two helium tanks on the upper stage (to be more realistic) is modified

List of improvements :

• Added 4 new scenarios for flights 263 to 266 (without satellites)
• Added a new generic rocket scenario (with a Sylda)
• Improved booster ejection (I'll let you discover that for yourself)
• Improved fairings (the sides were too thick)
• Version 6.4 now has a "long" fairing model
• Fairings have an "accordion" movement after jetisson
• Fixed minor bugs (textures, guidance files, etc.)
• Now 3 documents instead of one (including a "customization" document)