Cliff Sojourner wrote:
Eric, shut up, go to Hell.
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
On Jul 6, 2015, at 11:05 AM, James Dougherty wrote:
Thanks Jack,
Yes, this is the correct sequence to make it work and what we did
all weekend.
If you want to kill yourself, here is what you do:
1) Don't remove the safety interlock on the transmitter
2) Leave the alligator leads connec ted to the Receiver, connect
igniter leads to motor
3) Turn on the Receiver - it will make a beep beep beep and then
you'll hear the igniter pop and the rocket motor light
And the unit will turn on and fire the rocket if you do this.
This happened twice - once when Mike and I launched a Mad-Dog and
once when Dennis/Aidan were flying.
I spoke with them, showed them the above steps (which ARE in the
manual) and we never had an issue.
Clear example where you need to Read The F***in manual (RTFM) :-)
-James
On Mon, Jul 6, 2015 at 4:49 AM, Jack Garibaldi
<jackgaribaldi@xxxxxxx <mailto:jackgaribaldi@xxxxxxx>> wrote:
James____
__ __
Your sequence must be wrong if you are lighting
igniters/rockets without pushing any buttons____
__ __
__1. __When you hook up igniter clips this wire should
not be plugged into the relay module____
__2. __When you hook up relay module plug, your wireless
relay module should be off and the safety clip out____
__3. __Now when you turn on Blue unit safet y clip is out
now put in safety clip____
__4. __If unit now goes off no one is by the rocket and
you have a an issue with unit____
__5. __Unit will not turn on unless this sequence is
followed____
__ __
__ __
Jack____
--
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