[tccrockets] Re: wireless Launcher

  • From: "" <dmarc-noreply@xxxxxxxxxxxxx> (Redacted sender "chvy91bowtie@xxxxxxx" for DMARC)
  • To: tccrockets@xxxxxxxxxxxxx
  • Date: Tue, 7 Jul 2015 13:47:03 -0400

May I suggest the N10,000 HAHA






-----Original Message-----
From: Cliff Sojourner <cls@xxxxxxxxxxxxx>
To: tccrockets <tccrockets@xxxxxxxxxxxxx>
Sent: Tue, Jul 7, 2015 10:40 am
Subject: [tccrockets] Re: wireless Launcher



Dave - you are correct.

Eric, I apologize. I did not read your message
carefully enough,
misinterpreted it. my fault.

I will make it up to you -
reload of your choice next launch.

Glad all this blew over and no one got
hurt.

Cliff

On 2015-07-06 13:23, David Weinshenker wrote:

Cliff
Sojourner wrote:
Eric, shut up, go to Hell.
Cliff - why are you cussing
at Eric, who appears (by my reading) to have been
agreeing with what you just
said (e.g., "we know that not everyone will read"
the manual, the design
should "save the user from making mistakes", etc.)?

-dave w

There
is no reasonable expectation for users to read a manual that isn't
at the
pad and there isn't any reason to expect them to understand it in
107
degrees heat.

Launch control wiring has been the same for more than 60
years. Users do
not expect live wires. Ever.

This is a complete
hazard and unacceptable risk to destroy the rocketry
community. Such a
simple thing. Unnecessary.

I will protect my family and friends. My
friends are the entire rocketry
community.

On July 6, 2015 11:41:16
AM MST, Eric Renger <ericrenger@xxxxxxxxxxx> wrote:

It sounds like
there is potential for user error.

RTFM is always a good policy,
but as a person who used to write a
lot of M's, we know that not
everyone will R T F'ing things.
Generally, the best policy is if the
design will save the user from
making mistakes if at all possible, not
the manual! In certain
situations, I used to tell developers, "You
can't save this design
with documentation. You need to fix the design
and save users from
themselves."

The danger I see is that
if a person is unfamiliar with the design
and procedures, and they
assume there is NO WAY it can light the
igniter unless someone is
actually pushing the button (or an
equipment malfunction), then it
could result in disaster. If the
design is such that after one launch,
the system is not
automatically safe to hook up the next bird without
removing leads
or some other steps to make it safe, there is a
potential to forget.
Or there is a potential f or one group to leave
the equipment unsafe
for the next group.

Of course, I'm
saying all this without having ever seen this
equipment and not even a
good familiarity with the usual club
equipment, and i don't know what
kinds of procedures you had in
place. It just sounds like the system
can accidentally be left in an
unsafe state.


Eric






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