Credit goes to turboshaft for posting a similar list on SPF, thought it would be useful here as well:
X1 - AS350 B3e
X2 - EC130 T2
X3 - High-speed long-range Hybrid Helicopter demonstrator
X4 - Dauphin successor
X5 - EC145 T2
X6 - Replacement for the Super Puma family
X7 - Unknown
X8 - Unknown
X9 - New Eurocopter Donauwörth project
X10 - Unknown
X? - ?
-- Edited by Stingray on Sunday 28th of June 2015 02:51:18 PM
Interesting to see some additional "X" designations in Eurocopter's naming system. Especially seeing that a few were given to production lines that I honestly never knew carried them!
We have here the latest in primitive technology.
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Stingray wrote:X4 - Dauphin successor
Or "X3 Dauphin compound successor" to be more precise...
X3 is already listed as "High-speed long-range Hybrid Helicopter demonstrator" above X4, essentially a compound.
Vince Johnson - A merciless enemy but a powerful ally.
I know. I just meant to clarify the description of X4, because Stingray's description is rather vague and can be confused with the original Dauphin lines.
I think now the X4 entry can be split into two sections, one for the original X3 successor and another for the H160.
Pepper wrote:I think now the X4 entry can be split into two sections, one for the original X3 successor and another for the H160.
As I said before the X4 and its relationship with th US patent drawing is yet to be confirmed. It could've been an early X3 design study for all we know.
You might be right about it being an early design study. If you look at the patent for the supposed X4, it was filed in 2011, while there appears to be another patent filed domestically the next year, bearing closer similarity with the X3.
Patent filing dates shouldnt be references for desgn chronology. Let's just agree that until we get more facts from the source itself nothing is certain yet. :P