Cliff, if you're being ironic, you need to put one of those winky smiley faces
in your post!
If not being ironic, you need to reread my post. I am totally in agreement with
you. The design is unsafe, and you can't expect a manual to make it OK. That
was my point.
On Jul 6, 2015, at 1:04 PM, 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> 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
--
Sent from my Android device with K-9 Mail. Please excuse my brevity.
