On Mon, 14 Dec 2015 00:43:19 -0800, Kilo-Bravo wrote:
At this link on YouTube, you get a video showing the first test-shootout
of the system.
https://www.youtube.com/watch?v=lffpmcuuOPE
And yes, the chute did NOT deploy at this situation, as the craft is
static at the ground, no horizontal nor vertical speed, so no air to do
the job inflating the chute of course.
In reality, I could only think about two situations, when a helicopter
has no vertical or horizontal speed:
Interesting video. Thanks for posting it.
BTW, from the BRS website "The altitude required is a function of speed
more than height. FAA certified tests have shown that full parachute
inflation could occur as low as 260-290 feet above the ground."
That's 80-90m, but implies that you'd need to be rather higher if flying
slowly or hovering. Bruce's figures for the R22 autorotation recovery
(400ft/125m hovering, 200ft/62m at 55 kts) indicate that a BRS system
would need 150% more height than an R22 for a safe BRS recovery.
1.) the pilot hovers the craft safely somewhere above the ground in any
hight,
sure no vertical and no horizontal speed and of course no need to
activate thes BRS.
2.) pilot is not hovering safely in the air and again no horizontal nor
any
vertical speed - pilot missed the right moment to activate the BRS
.....
Murphy says that something will go wrong at some time & place in both
these situations.
After all, the VC200 you see at the e-volo website is just the prototype
as stated in my article. It has not been operated with occupants in the
cockpit but with adequate ballast. As its preliminary permission by
Federal Administration (LBA) allows remote controlled and unmanned
test-flights only, until its safe operation is finally proofed and the
test-program is completed. After that, they sure get full
test-permission by the Authority to be operated with occupants on board
the craft.
Understood. It will be interesting to see what pilot certification the LBA
decide is needed to fly one.
--
martin@ | Martin Gregorie
gregorie. | Essex, UK
org |