On Sun, 13 Dec 2015 01:24:19 -0800, Kilo-Bravo wrote:

O.K., few of my counterargumenters continue to ignore a safety-device
called "Ballistic Rescue System". Why? Just because "What I do not know
- I do not like?

I've looked through the Volocopter website twice now and have not seen
any mention of BRS or performance details among all the salesy balderdash.
The similarities remind me somewhat of the Moller M400 Skycar.

To my mind BRS is strictly for last ditch use because it seems to be a
destructive device. The crash reports I've read where a BRS was used show
that its use always seems to cause at least major damage to the aircraft.
Take my example of a Volocopter motor failing: if you need to use the BRS
to recover then it also means you get to pay for major repairs or a new
Volocopter. Kerching!! More money for Volocopter. OTOH if it would
autorotate or can balance thrust across the support disk the cost could
be as little as resetting a circuit breaker to up to replacing part of
the control electronics or one motor.

You insist at the ability of autorotation as best safety device?

Not at all. I accept that its useful where there's no other way out, e.g.
to Cirrus 22 that suffered total electric failure after entering cloud
(IFR rated pilot, but entirely electronic panel), should you have to use
it when the problem is engine failure? Thats something all power pilots
are trained for.


--
martin@ | Martin Gregorie
gregorie. | Essex, UK
org |