Re: FAA To Finally Ditch Floppy Disks & Win-95

Subject	Re: FAA To Finally Ditch Floppy Disks & Win-95
Newsgroups	comp.os.linux.misc
References	(7 earlier) <dRY3Q.1260250$6%s6.129451@fx12.iad> <6H2dnfZhZeDQYM31nZ2dnZfqn_adnZ2d@giganews.com> <Qli4Q.152344$b3%4.84286@fx14.iad> <z9Kdncv-sI6zsM_1nZ2dnZfqn_udnZ2d@giganews.com> <102uhm4$35n0c$1@dont-email.me>
From	c186282 <c186282@nnada.net>
Date	2025-06-18 19:38 -0400
Message-ID	<mpWdnYsm68Gs0871nZ2dnZfqn_qdnZ2d@giganews.com> (permalink)

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On 6/18/25 10:15 AM, Rich wrote:
> In comp.os.linux.misc c186282 <c186282@nnada.net> wrote:
>> On 6/17/25 2:20 PM, Charlie Gibbs wrote:
>>> On 2025-06-17, c186282 <c186282@nnada.net> wrote:
>>>
>>>> On 6/16/25 1:52 PM, Charlie Gibbs wrote:
>>>>
>>>>> Yesterday I felt a something catching while moving the controls
>>>>> in our small plane.  I found that various bits of plumbing
>>>>> behind the panel had shifted to where they were touching things
>>>>> they shouldn't.  Time to get out those good old nylon zap straps
>>>>> and tie things back where they belong, just like the mechanics do.
>>>>> Mind you, we don't get much above 10,000 feet...
>>>>
>>>>      Always MANY failure modes alas ...
>>>>
>>>>      However AIRLINE corps are SUPPOSED to keep abreast
>>>>      and ahead of these issues.
>>>
>>> <cough>Boeing<cough>
>>>
>>>>      About the time I quit flying was during a huge OPEC
>>>>      oil embargo. Fuel prices quadrupled or more and too
>>>>      often you couldn't even GET the right fuel for the
>>>>      planes. Valve lock in a 4-cyl engine - NOT good.
>>>>      Green gas was NOT red gas !
>>>
>>> And now it's replaced by blue gas - 100LL (low lead).
>>> Much less lead than good old green gas (100/130), but
>>> still three times as much as in the red gas (80/87)
>>> that a lot of engines were designed for.  Beware of
>>> lead fouling the plugs!
>>
>>    In the 70s, engines made for Red did NOT take
>>    well to 100LL. It was both ignition and
>>    especially the VALVES. KEPT having valves
>>    stick ... NOT good. Besides, oil embargoes
>>    drove fuel prices through the roof - could
>>    NOT afford it then.
> 
> Was 'red' a leaded fuel?  Tetraethyl lead as a gasoline additive
> provided more than simply an octane boost.  The leftover residue from
> combustion provided a lubricating effect, and as a result for many
> (most?) engines designed in the days of leaded fuel the designers took
> advantage of that lubricating effect from the tetraethyl lead for (at
> least) the valve stems (esp.  the exhaust valve, which operated at
> temperatures that made only oil lubrication difficult) and for
> cushioning the valve seats when the valves closed.  When running
> unleaded fuel in an engine that took advantage if the lead lubrication
> effect, eventually one got stuck valves or very worn valve seats.

   You got that basically right. Red was leaded gasoline.
   The residues DID act as a lubricant. The burn rate was
   different from 100LL too. Aircraft engines are built
   more 'on the edge' than automobile engines because you
   have to keep the weight down and because of heat-
   management concerns.

   Unleaded gasoline was NEW at the time. There were SOME
   problems in SOME automobiles, but it was amplified in
   aircraft engines. Formulas have been adjusted since
   then, unleaded is ok now. The lead has been replaced
   with toluene and a few other things to push up the
   'octane rating'.

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FAA To Finally Ditch Floppy Disks & Win-95 c186282 <c186282@nnada.net> - 2025-06-13 22:38 -0400
  Re: FAA To Finally Ditch Floppy Disks & Win-95 rbowman <bowman@montana.com> - 2025-06-14 03:35 +0000
    Re: FAA To Finally Ditch Floppy Disks & Win-95 c186282 <c186282@nnada.net> - 2025-06-14 00:29 -0400
      Re: FAA To Finally Ditch Floppy Disks & Win-95 Rich <rich@example.invalid> - 2025-06-14 16:34 +0000
        Re: FAA To Finally Ditch Floppy Disks & Win-95 The Natural Philosopher <tnp@invalid.invalid> - 2025-06-15 00:38 +0100
          Re: FAA To Finally Ditch Floppy Disks & Win-95 c186282 <c186282@nnada.net> - 2025-06-14 23:28 -0400
            Re: FAA To Finally Ditch Floppy Disks & Win-95 Rich <rich@example.invalid> - 2025-06-15 14:04 +0000
              Re: FAA To Finally Ditch Floppy Disks & Win-95 c186282 <c186282@nnada.net> - 2025-06-15 21:44 -0400
        Re: FAA To Finally Ditch Floppy Disks & Win-95 c186282 <c186282@nnada.net> - 2025-06-14 22:41 -0400
          Re: FAA To Finally Ditch Floppy Disks & Win-95 Rich <rich@example.invalid> - 2025-06-15 14:19 +0000
            Re: FAA To Finally Ditch Floppy Disks & Win-95 rbowman <bowman@montana.com> - 2025-06-15 18:45 +0000
            Re: FAA To Finally Ditch Floppy Disks & Win-95 c186282 <c186282@nnada.net> - 2025-06-15 22:02 -0400
              Re: FAA To Finally Ditch Floppy Disks & Win-95 Rich <rich@example.invalid> - 2025-06-16 03:00 +0000
                Re: FAA To Finally Ditch Floppy Disks & Win-95 c186282 <c186282@nnada.net> - 2025-06-16 01:13 -0400
                Re: FAA To Finally Ditch Floppy Disks & Win-95 Rich <rich@example.invalid> - 2025-06-17 03:42 +0000
              Re: FAA To Finally Ditch Floppy Disks & Win-95 Charlie Gibbs <cgibbs@kltpzyxm.invalid> - 2025-06-16 17:52 +0000
                Re: FAA To Finally Ditch Floppy Disks & Win-95 Rich <rich@example.invalid> - 2025-06-17 03:49 +0000
                Re: FAA To Finally Ditch Floppy Disks & Win-95 c186282 <c186282@nnada.net> - 2025-06-17 01:29 -0400
                Re: FAA To Finally Ditch Floppy Disks & Win-95 Charlie Gibbs <cgibbs@kltpzyxm.invalid> - 2025-06-17 18:20 +0000
                Re: FAA To Finally Ditch Floppy Disks & Win-95 c186282 <c186282@nnada.net> - 2025-06-17 23:06 -0400
                Re: FAA To Finally Ditch Floppy Disks & Win-95 Rich <rich@example.invalid> - 2025-06-18 14:15 +0000
                Re: FAA To Finally Ditch Floppy Disks & Win-95 c186282 <c186282@nnada.net> - 2025-06-18 19:38 -0400
                Re: FAA To Finally Ditch Floppy Disks & Win-95 Lawrence D'Oliveiro <ldo@nz.invalid> - 2025-06-18 00:02 +0000
                Re: FAA To Finally Ditch Floppy Disks & Win-95 Bobbie Sellers <bliss-sf4ever@dslextreme.com> - 2025-06-17 17:30 -0700
                Re: FAA To Finally Ditch Floppy Disks & Win-95 c186282 <c186282@nnada.net> - 2025-06-17 22:38 -0400
                Re: FAA To Finally Ditch Floppy Disks & Win-95 rbowman <bowman@montana.com> - 2025-06-18 03:55 +0000
                Re: FAA To Finally Ditch Floppy Disks & Win-95 John Ames <commodorejohn@gmail.com> - 2025-06-18 08:03 -0700
                Re: FAA To Finally Ditch Floppy Disks & Win-95 Charlie Gibbs <cgibbs@kltpzyxm.invalid> - 2025-06-18 16:15 +0000
                Re: FAA To Finally Ditch Floppy Disks & Win-95 c186282 <c186282@nnada.net> - 2025-06-18 19:41 -0400
                Re: FAA To Finally Ditch Floppy Disks & Win-95 Charlie Gibbs <cgibbs@kltpzyxm.invalid> - 2025-06-19 22:25 +0000
                Re: FAA To Finally Ditch Floppy Disks & Win-95 Lawrence D'Oliveiro <ldo@nz.invalid> - 2025-06-19 23:12 +0000
                Re: FAA To Finally Ditch Floppy Disks & Win-95 Chris Ahlstrom <OFeem1987@teleworm.us> - 2025-06-20 08:36 -0400
                Re: FAA To Finally Ditch Floppy Disks & Win-95 rbowman <bowman@montana.com> - 2025-06-20 20:00 +0000
                Re: FAA To Finally Ditch Floppy Disks & Win-95 c186282 <c186282@nnada.net> - 2025-06-21 01:34 -0400
                Re: FAA To Finally Ditch Floppy Disks & Win-95 Chris Ahlstrom <OFeem1987@teleworm.us> - 2025-06-21 06:50 -0400
                Re: FAA To Finally Ditch Floppy Disks & Win-95 rbowman <bowman@montana.com> - 2025-06-21 19:30 +0000
                Re: FAA To Finally Ditch Floppy Disks & Win-95 Chris Ahlstrom <OFeem1987@teleworm.us> - 2025-06-22 06:43 -0400
                Re: FAA To Finally Ditch Floppy Disks & Win-95 Charlie Gibbs <cgibbs@kltpzyxm.invalid> - 2025-06-21 23:57 +0000
                Re: FAA To Finally Ditch Floppy Disks & Win-95 rbowman <bowman@montana.com> - 2025-06-22 01:15 +0000
                Re: FAA To Finally Ditch Floppy Disks & Win-95 c186282 <c186282@nnada.net> - 2025-06-21 21:24 -0400
                Re: FAA To Finally Ditch Floppy Disks & Win-95 rbowman <bowman@montana.com> - 2025-06-22 06:14 +0000
                Re: FAA To Finally Ditch Floppy Disks & Win-95 c186282 <c186282@nnada.net> - 2025-06-22 02:50 -0400
                Re: FAA To Finally Ditch Floppy Disks & Win-95 Charlie Gibbs <cgibbs@kltpzyxm.invalid> - 2025-06-22 15:49 +0000
                Re: FAA To Finally Ditch Floppy Disks & Win-95 rbowman <bowman@montana.com> - 2025-06-22 18:22 +0000
                Re: FAA To Finally Ditch Floppy Disks & Win-95 c186282 <c186282@nnada.net> - 2025-06-23 00:40 -0400
                Re: FAA To Finally Ditch Floppy Disks & Win-95 John Ames <commodorejohn@gmail.com> - 2025-06-23 11:27 -0700
                Re: FAA To Finally Ditch Floppy Disks & Win-95 Lawrence D'Oliveiro <ldo@nz.invalid> - 2025-06-24 01:34 +0000
                Re: FAA To Finally Ditch Floppy Disks & Win-95 John Ames <commodorejohn@gmail.com> - 2025-06-24 07:52 -0700
                Re: FAA To Finally Ditch Floppy Disks & Win-95 Lawrence D'Oliveiro <ldo@nz.invalid> - 2025-06-24 22:24 +0000
                Re: FAA To Finally Ditch Floppy Disks & Win-95 John Ames <commodorejohn@gmail.com> - 2025-06-25 09:20 -0700
                Re: FAA To Finally Ditch Floppy Disks & Win-95 Lawrence D'Oliveiro <ldo@nz.invalid> - 2025-06-26 03:36 +0000
                Re: FAA To Finally Ditch Floppy Disks & Win-95 Andreas Eder <a_eder_muc@web.de> - 2025-06-29 15:20 +0200
                Re: FAA To Finally Ditch Floppy Disks & Win-95 Lawrence D'Oliveiro <ldo@nz.invalid> - 2025-06-30 00:01 +0000
                Re: FAA To Finally Ditch Floppy Disks & Win-95 rbowman <bowman@montana.com> - 2025-06-23 18:43 +0000
                Re: FAA To Finally Ditch Floppy Disks & Win-95 The Natural Philosopher <tnp@invalid.invalid> - 2025-06-22 11:43 +0100
                Re: FAA To Finally Ditch Floppy Disks & Win-95 Charlie Gibbs <cgibbs@kltpzyxm.invalid> - 2025-06-22 15:49 +0000
                Re: FAA To Finally Ditch Floppy Disks & Win-95 c186282 <c186282@nnada.net> - 2025-06-23 01:01 -0400
                Re: FAA To Finally Ditch Floppy Disks & Win-95 rbowman <bowman@montana.com> - 2025-06-23 18:46 +0000
                Re: FAA To Finally Ditch Floppy Disks & Win-95 Charlie Gibbs <cgibbs@kltpzyxm.invalid> - 2025-06-24 04:52 +0000
                Re: FAA To Finally Ditch Floppy Disks & Win-95 rbowman <bowman@montana.com> - 2025-06-24 05:06 +0000
                Re: FAA To Finally Ditch Floppy Disks & Win-95 c186282 <c186282@nnada.net> - 2025-06-24 01:24 -0400
                Re: FAA To Finally Ditch Floppy Disks & Win-95 Lawrence D'Oliveiro <ldo@nz.invalid> - 2025-06-24 06:31 +0000
                Re: FAA To Finally Ditch Floppy Disks & Win-95 The Natural Philosopher <tnp@invalid.invalid> - 2025-06-24 10:19 +0100
                Re: FAA To Finally Ditch Floppy Disks & Win-95 Lawrence D'Oliveiro <ldo@nz.invalid> - 2025-06-24 22:25 +0000
                Re: FAA To Finally Ditch Floppy Disks & Win-95 rbowman <bowman@montana.com> - 2025-06-25 02:02 +0000
                Re: FAA To Finally Ditch Floppy Disks & Win-95 c186282 <c186282@nnada.net> - 2025-06-25 01:58 -0400
                Re: FAA To Finally Ditch Floppy Disks & Win-95 c186282 <c186282@nnada.net> - 2025-06-25 02:17 -0400
                Re: FAA To Finally Ditch Floppy Disks & Win-95 Charlie Gibbs <cgibbs@kltpzyxm.invalid> - 2025-06-22 15:49 +0000
                Re: FAA To Finally Ditch Floppy Disks & Win-95 rbowman <bowman@montana.com> - 2025-06-22 19:09 +0000
                Re: FAA To Finally Ditch Floppy Disks & Win-95 Charlie Gibbs <cgibbs@kltpzyxm.invalid> - 2025-06-22 21:55 +0000
                Re: FAA To Finally Ditch Floppy Disks & Win-95 Lawrence D'Oliveiro <ldo@nz.invalid> - 2025-06-23 02:25 +0000
                Re: FAA To Finally Ditch Floppy Disks & Win-95 c186282 <c186282@nnada.net> - 2025-06-23 01:07 -0400
                Re: FAA To Finally Ditch Floppy Disks & Win-95 rbowman <bowman@montana.com> - 2025-06-23 05:52 +0000
                Re: FAA To Finally Ditch Floppy Disks & Win-95 rbowman <bowman@montana.com> - 2025-06-23 05:35 +0000
                Re: FAA To Finally Ditch Floppy Disks & Win-95 Charlie Gibbs <cgibbs@kltpzyxm.invalid> - 2025-06-23 16:43 +0000
                Re: FAA To Finally Ditch Floppy Disks & Win-95 rbowman <bowman@montana.com> - 2025-06-23 19:11 +0000
                Re: FAA To Finally Ditch Floppy Disks & Win-95 Lawrence D'Oliveiro <ldo@nz.invalid> - 2025-06-24 01:36 +0000
                Re: FAA To Finally Ditch Floppy Disks & Win-95 Charlie Gibbs <cgibbs@kltpzyxm.invalid> - 2025-06-24 04:52 +0000
                Re: FAA To Finally Ditch Floppy Disks & Win-95 Lawrence D'Oliveiro <ldo@nz.invalid> - 2025-06-24 06:47 +0000
                Re: FAA To Finally Ditch Floppy Disks & Win-95 c186282 <c186282@nnada.net> - 2025-06-24 01:02 -0400
                Re: FAA To Finally Ditch Floppy Disks & Win-95 Chris Ahlstrom <OFeem1987@teleworm.us> - 2025-06-22 06:49 -0400
                Re: FAA To Finally Ditch Floppy Disks & Win-95 Charlie Gibbs <cgibbs@kltpzyxm.invalid> - 2025-06-22 15:49 +0000
                Re: FAA To Finally Ditch Floppy Disks & Win-95 c186282 <c186282@nnada.net> - 2025-06-22 02:14 -0400
                Re: FAA To Finally Ditch Floppy Disks & Win-95 Lawrence D'Oliveiro <ldo@nz.invalid> - 2025-06-18 22:44 +0000
          Re: FAA To Finally Ditch Floppy Disks & Win-95 rbowman <bowman@montana.com> - 2025-06-15 18:36 +0000
            Re: FAA To Finally Ditch Floppy Disks & Win-95 c186282 <c186282@nnada.net> - 2025-06-15 22:40 -0400
              Re: FAA To Finally Ditch Floppy Disks & Win-95 rbowman <bowman@montana.com> - 2025-06-16 04:11 +0000
                Re: FAA To Finally Ditch Floppy Disks & Win-95 c186282 <c186282@nnada.net> - 2025-06-16 01:30 -0400
                Re: FAA To Finally Ditch Floppy Disks & Win-95 Charlie Gibbs <cgibbs@kltpzyxm.invalid> - 2025-06-16 18:15 +0000
      Re: FAA To Finally Ditch Floppy Disks & Win-95 John Ames <commodorejohn@gmail.com> - 2025-06-16 09:35 -0700
        Re: FAA To Finally Ditch Floppy Disks & Win-95 Rich <rich@example.invalid> - 2025-06-17 04:00 +0000
          Re: FAA To Finally Ditch Floppy Disks & Win-95 c186282 <c186282@nnada.net> - 2025-06-17 04:22 -0400
        Re: FAA To Finally Ditch Floppy Disks & Win-95 c186282 <c186282@nnada.net> - 2025-06-17 23:11 -0400
          Re: FAA To Finally Ditch Floppy Disks & Win-95 John Ames <commodorejohn@gmail.com> - 2025-06-18 08:01 -0700

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