On 13/11/2017 13:43, Bruce Hoult wrote:
> On Sunday, November 12, 2017 at 1:08:38 PM UTC+3, Brian Lawrence wrote:
>> On 11/11/2017 17:28, bra wrote:
>>> On Friday, November 10, 2017 at 12:03:45 AM UTC-8, Brian Lawrence wrote:
>>>> The DT headline was "I still feel guilty about the death of Ayrton Senna"..
>>>> And another quote, "I designed a car that was aerodynamically unstable..
>>>> By Imola, I understood the problem. I just needed time to give Ayrton a
>>>> car that was worthy of him. Time denied us all that chhance."
>>> Could have would have should have --- time constraints in all engineering projects. The engineering narrative behind the 1986 Challenger shuttle disaster never fails to engage me. I heard Roger Boisjoly speak to the IEEE about his NASA work, about management / marketing / engineering conflicts in the launch decision, and subsequently about the hurried "fixes" on later engines.
>>> I think Whitehead (?) rewrote a cliché to warn engineers that "Urgent necessity is more often the mother of the quick fix, than it is the mother of invention."
>> Just a nitpick/clarification - the late Roger Boisjoly did not work for
>> NASA directly, in 1986 he was working for Morton Thiokol the lead
>> contractor for the Solid Rocket Boosters (SRB). His memo warning about
>> the effect of very low temperatures on the O-rings was internal within
>> I hadn't realised he passed away in 2012 - most of the articles
>> reporting his death contain this, "had worked for companies in
>> California on lunar module life-support systems and the moon vehicle."
>> LM ELS was built by Hamilton Standard, who also provided the spacesuits.
>> I'm now wondering what 'the moon vehicle' meant, since the LM was the
>> moon vehicle. I'll have to dig out the NASA reports now :-)
> The wheels, motors, and suspension for the Lunar Roving Vehicle were built by General Motors in Santa Barbara. Electronic and navigation were my Boeing in Seattle, and assembly by Boeing in Huntsville.
> General Motors also did the inertial guidance systems for the spacecraft, but I can't immediately discover who did the LEM life support systems.
I did sort of mention it above, although I should have typed ECS not ELS
(Environmental Control System). It was Hamilton Standard (now Hamilton
Sundstrand), more specifically the Hamilton Standard Division of United
Major LM Contractors listed here:
Part of the LM News Reference, I have a paperback copy of that & the CSM
version, I'll try and dig them out. You can access most of both here:
Or almost everything you might want here: