And especially don't fly close to the ground. Cables get rarer the
higher you go.
Chuck Norcutt
On 7/27/2011 1:49 PM, Chris Barker wrote:
> I agree, Piers, but the designer of the system will have been aware
> of the limitations: the angle, the number of wires and (presumably)
> the speed of the helo at time of strike. There must also be the risk
> of whiplash from the wires as they part, particularly if the cable
> starts to unravel quickly enough.
>
> There's a moral to this tale: fly at higher speeds without a rotor .
> . . :-)
>
> Chris
>
> On 27 Jul 2011, at 12:01, Piers Hemy wrote:
>
>> Seems to me, Chuck, that WSPS is effective only when the helicopter
>> hits wires head-on in level flight, with rotor blades clear of the
>> wires. From your description of your son's experience, the
>> helicopter was climbing, and presumably the wires would have
>> bypassed the WSPS (perhaps hitting the rotor blades from above,
>> perhaps hitting the tail boom). I was reading the following last
>> night, in a completely unrelated context: "How error and unlucky
>> chance [...] conspire to seek out the smallest chink in the armour
>> of the most elaborate and carefully planned assembly of safety
>> devices ..."
>>
>
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