[roc-chat] Re: New 'mass launch' rules
- From: JACK GARIBALDI <JackGaribaldi@xxxxxxx>
- To: "roc-chat@xxxxxxxxxxxxx" <roc-chat@xxxxxxxxxxxxx>
- Date: Fri, 20 Apr 2012 19:57:21 -0700
That is lame so if an Alpha was to go to 1000ft like Wedge said them 10 of them
would require a 1500ft safe distance and there will be very few clubs putting
10 Alphas now at 1500 ft safe distance I don't even think Trip's club will
accommodate that so the underlined is they want to do away with mass launching.
I will rally for Tripoli not to follow suit.
Jack
On Apr 20, 2012, at 7:46 PM, "David Erbas-White" <derbas@xxxxxxxxxxxxxxxx>
wrote:
> On 4/20/2012 6:42 PM, Allen H Farrington wrote:
>>
>> 3) Safe Launch Distance for Spectators and Participants
>> This is the one that is being modified. There are defined distances in both
>> NFPA 1122 and 1127 for how far you have to be from a launch pad when you
>> ignite the motor. This distance ranges from 15 feet to nearly 1500 feet
>> depending on impulse. For complex rockets, the distances are "one impulse
>> level higher" if you look at the table. This works out to be about 1.5
>> times. Since ROC uses a range layout that allows folks to be at one set of
>> pads while the other are launching, we have a range layout that accommodates
>> these distances. (except for the aforementioned M-to-M, 2 stage, Mass
>> Launch). In any case, the absolute maximum distance required for any
>> combination in CA is about 1/2 a mile (2250 ft). Other states allow larger
>> impulses and therefore their ranges might be larger.
>>
>
> Allen,
>
> First, a TREMENDOUS thanks for all that you and the rest of the board are
> doing for ROC.
>
> Second, here is the exact wording of the new safety code (i.e., the wording
> of the change):
>
> "When conducting a simultaneous launch of more than ten rockets I will
> observe a safe distance of 1.5 times the maximum expected altitude of any
> launched rocket."
>
> In the course of the discussions on the NAR group, and apparently as part of
> NFPA as well, this DOES mean that (at least for model rockets), that rather
> than being 15 feet away from a launch of a single Alpha, one would have to be
> 1.5 times the distance of the maximum expected ALTITUDE (not the previous
> safety distance) for a launch of more than ten rockets.
>
> Note that this would affect some of our current activities, even with some of
> the sparsely attended launches. We sometimes launch the entire front row if
> we're getting backed up -- this rule will now prevent this from being
> possible (though we could launch up to ten rockets at a time).
>
> David Erbas-White
>
>
> --
> ROC-Chat mailing list
> roc-chat@xxxxxxxxxxxxx
> //www.freelists.org/list/roc-chat
>
--
ROC-Chat mailing list
roc-chat@xxxxxxxxxxxxx
//www.freelists.org/list/roc-chat
Other related posts:
