William Gaatjes
Lifer
The Sentinel is about 9 years old from the start of development, which is where much of the foundational systems would have been designed, which is where I was going as far as built-in limitations. The first flight was likely sometime in 2005.
I am all about positive critique, love it, do it myself... often. I do not consider the Op's PWNED!!! attitude or LL's usual anti-US-military ramblings to be positive critiques. Just saying.
From making the first drawing to the first production model. I estimated sort of the same (2002-2003) the same. Testing at area 52. But real use, between 2005 to 2007 i estimated.
A nice picture :
I expect these drones have been looking around in Afghanistan, Pakistan and Iran airspace since 2007.
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