Weird California sighting

originally posted by: Bfirez
a reply to: grey580

Did someone say Boron? Also, I wonder why the US Airforce keeps buying JP-7 considering the blackbirds have all been retired for years. Curious....

Why does the military retire stuff?

Usually because they now have something better.

And that something better uses JP-7 and diborane fuels.

originally posted by: grey580

originally posted by: Bfirez
a reply to: grey580

Did someone say Boron? Also, I wonder why the US Airforce keeps buying JP-7 considering the blackbirds have all been retired for years. Curious....

Why does the military retire stuff?

Usually because they now have something better.

And that something better uses JP-7 and diborane fuels.

===

Boranes are TOXIC to the atmosphere and to ground personnel
AND when burnt build up on engine components (i.e. boro-hydrides
or boro-nitrides) which are harder than nails and will eventually
shred the internal engine components.

The JP7 to me sounds like a Secret Heavy Lifter...probably
a 4 to 8 rotor 500-to-1000 tonne rotary craft OR a bigger
and longer range version of the C5a Galaxy (500+ tonnes)
or an Ekranoplane-like lifting body/ground-effect aircraft
that can carry 250-to-500 tonnes of troops and gear
skimming above the water long-range at 300+ KMH.

THAT'S where I'm betting my money for all that JP-7 !!!!

a reply to: StargateSG7

What does TOXIC to the atmosphere mean? I know that things can be toxic to organisms. Is the atmosphere an organism?

The JP7 to me sounds like a Secret Heavy Lifter...probably
a 4 to 8 rotor 500-to-1000 tonne rotary craft OR a...blah...blah...blah

JP7 is a jet engine fuel.
en.wikipedia.org...

It's being used in experimental aircraft, like this:
en.wikipedia.org...

It is well suited to aircraft which fly at very high altitudes. Rotaries aren't known for that. Nor are surface effect aircraft.

originally posted by: Phage
a reply to: StargateSG7

What does TOXIC to the atmosphere mean? I know that things can be toxic to organisms. Is the atmosphere an organism?

The JP7 to me sounds like a Secret Heavy Lifter...probably
a 4 to 8 rotor 500-to-1000 tonne rotary craft OR a...blah...blah...blah

JP7 is a jet engine fuel.
en.wikipedia.org...

===

I meant that if Boranes are added to JP-7 the combustion
products can react with the upper-atmosphere forming
various nitro-oxides, boro-ates-and-ides and basically
wrecking havoc on the environment.

JP-7 can be used in afterburner components
any any OTHER application that requires a
high flashpoint or where stability at a
low-temperature (i.e. high atmosphere
or arctic/antarctic conditions) is a vital
functional component of the entire
flight system. So NOT just the usual
SR-71-style ramjet/scramjet applications
but ANYWHERE where flashpoint and
thermal stability is a vital to operation.

So technically you COULD use it in a
high output rotary-craft engine or
high flying heavy lifter.....who knows?!

I'm no fuel expert...but my suspicions are aroused!

a reply to: StargateSG7

Why in the world would anyone use JP-7 in anything you just described? If you bet your money on those, you'd be broke.

You need to read up on JP-7, it's properties, where and why it was used in the first place.

a reply to: StargateSG7

JP-7 can be used in afterburner components

What is that supposed to mean? How is any particular fuel used in "afterburner components?"
Your knowledge of jet engines seems...limited.

a reply to: BASSPLYR

The so called "Weird California Sighting" has nothing but 2 members claiming they say a green streak and now its some super classified bird that you guys pretend you;re allowed to talk about because the DIA has allowed you to say some things and not others.

PALEEZ!

You guys who claim to watch the sky overnight don't have a single photo or video to back up the claims. Seems im the only one not willing to take your bait hook line and sinker.

Ya, it makes for some cool, fantasy reading and it sounds great. But if this were a courtroom your testimony would be thrown out as unsubstantiated. You've got nothing but words.

245 People turned in a report of a slow moving green light moving northwest on the west coast 2 days ago. Sorry 267 people

Fireball reports

a reply to: BigTrain

Really simple solution then. If you don't like a thread, don't read it. If you hate a thread that much, why bother posting in it?

Yet again you're showing you don't actually read. The DIA hasn't prevented anyone in this thread from saying anything. There are things told to some people that if they were repeated could get people in trouble. So they don't just come into a thread and just spew everything they know. Again, if you don't like it, don't click on the thread. No one forces you to read and post in a thread.

originally posted by: Phage
a reply to: StargateSG7

JP-7 can be used in afterburner components

What is that supposed to mean? How is any particular fuel used in "afterburner components?"
Your knowledge of jet engines seems...limited.

My knowledge is VERY LIMITED when it comes
to engine internals...but I will clarify my writing
as being "Aircraft Engines that have Afterburners"
which would been JP-7 used for high-speed aircraft
(SR-71 and the like) ... OR .... for thermal stability
such as really high-altitude and or Arctic/Antarctic
operations....so which one is it gonna be for
purchases of LOTS of JP-7 fuel by the DOD!

a reply to: StargateSG7
Your clarification didn't help much. Didn't have much to do with "afterburner components."

originally posted by: Phage
a reply to: StargateSG7
Your clarification didn't help much. Didn't have much to do with "afterburner components."

Unfortunately I can't fix that BAD WRITING anymore
but the key issue is LOTS of JP-7 is being bought.

One reason to use JP-7 is in engines designed
for high speed aerospace platforms which can
contain post-primary combustion components
(aka an afterburner) ....so now....is all that JP-7
being bought and used for black budget world
high speed planes that have afterburners?

...OR... are OTHER more secretive aircraft being tested
that require a fuel with a high flashpoint and/or
upgraded thermal stability properties?

And are those aircraft designed with engines
that have afterburners (SR-71-style)...OR....
are those engines being used on aircraft that
are being operating in extremely cold
environments (i.e. the polar regions
and or extreme upper atmosphere)?

My wording was just simply VERY BAD
my apologies for that bad writing style!

Again, why is so much JP-7 being bought?

a reply to: StargateSG7
It's not the temperatures, its the pressure. In very low pressure environments highly low volatility fuels are a good thing.

originally posted by: Phage
a reply to: StargateSG7

JP-7 can be used in afterburner components

What is that supposed to mean? How is any particular fuel used in "afterburner components?"
Your knowledge of jet engines seems...limited.

I think there might be....issues, other than ignorance at hand.

originally posted by: mikell
245 People turned in a report of a slow moving green light moving northwest on the west coast 2 days ago. Sorry 267 people

Fireball reports

I'm stupid. Where is the description of the object other than just "fireball" in that link?

originally posted by: Phage
a reply to: StargateSG7
It's not the temperatures, its the pressure. In very low pressure environments highly low volatility fuels are a good thing.

If my low-level basic college chemistry serves me correct,
lower pressure = lower boiling point and/or more evaporation right?

So you want a JP-7 fuel to stay liquid and not evaporate
until combustion BUT isn't this actually a BAD THING....???
because forgive me if i'm wrong, aren't modern jet aircraft
fuel systems SUPPOSED to be sealed and/or pressurized systems
where fuel volatility is controlled from tank-to-combustion anyways?

Are we talking a fuel system like the SR-71 which actually
LEAKED by design? Aren't modern tanks made of thermally
stable composites with an internal glass-like nano-coating
to prevent that sort of SR-71 fuel tank heat-up, then
expansion and then final self-sealing?

I though the point was a fuel with high energy density,
high-volatility to allow good fuel/air mixing for combustion?
And anything else desire tended to on thermal stability to
prevent gelling, accidental explosion due to static electricity
ignition, and reduce environmental impact?

a reply to: StargateSG7

If my low-level basic college chemistry serves me correct,
lower pressure = lower boiling point and/or more evaporation right?

Correct.

because forgive me if i'm wrong, aren't modern jet aircraft
fuel systems SUPPOSED to be sealed and/or pressurized systems
where fuel volatility is controlled from tank-to-combustion anyways?

The combustion chambers of jet engines are fully exposed to ambient conditions.

Are we talking a fuel system like the SR-71 which actually
LEAKED by design?

You are mistaken. It would have been preferable to avoid leakage but thermal expansion became problematic. In any case, it is not a matter of fuel storage, but combustion.

Everyone is caught up on boron in the exhaust. Maybe it uses boron like an old school zip fuel. Maybe the green is from something else thats not a chemical additive.

What else could mix real well with jp7.

I dunno. Im a weirdo. Some people see bright green exhaust and go borons!!!

I see bright green exhaust and think.

Hmmm. Thats pretty neat to my untrained eye it looks like theyre bunching electrons at sub femtosecond pulses with a non linear wakefield laser accellerator into that ionized plasma stream. (the exhaust) smart move that is a very efficient way to transfer energy into the stream... Well i guess thats why those engineers make the big bucks and im some chump walking to the liquor store to purchase 211 malt liquor.



Or as someone used to say:
"...and now with light!!!"

a reply to: Phage

---

And if I can further rely on my limited chemistry,
when you say ambiant atmosphere and combustion,
is something like a JP-7 amenable to being combusted
with an introduced oxidiser such as a peroxide or perchlorate?

a reply to: StargateSG7
Jet engines are airbreathers.
They are not rockets. There are fuels which are suitable to rockets.