As subject…

<https://mil.in.ua/en/news/pars-unveils-trembita-cruise-missile/>

(Safe)

--
Spike

--- SoupGate-Win32 v1.05
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Spike wrote:

<https://mil.in.ua/en/news/pars-unveils-trembita-cruise-missile/>

"no moving parts"

Do they not use reed valves?

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On 23/02/2025 16:21, Andy Burns wrote:

Spike wrote:

<https://mil.in.ua/en/news/pars-unveils-trembita-cruise-missile/>

"no moving parts"

Do they not use reed valves?

It is not necessary if you use a folded tube and a resonant cavity.

Efficient they aint and the noise is horrendous. But it works

--
In todays liberal progressive conflict-free education system, everyone
gets full Marx.

--- SoupGate-Win32 v1.05
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On 23/02/2025 16:00, Spike wrote:

As subject…

<https://mil.in.ua/en/news/pars-unveils-trembita-cruise-missile/>

(Safe)

I wondered if they would ever get around to that. The V1 was Hitlers
best V weapon. Cheap, launch anywhere and almost unstoppable in
sufficient numbers


--
It is the folly of too many to mistake the echo of a London coffee-house
for the voice of the kingdom.

Jonathan Swift

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The Natural Philosopher wrote:

Andy Burns wrote:

Spike wrote:

<https://mil.in.ua/en/news/pars-unveils-trembita-cruise-missile/>

"no moving parts"

Do they not use reed valves?

It is not necessary  if you use a folded tube and a resonant cavity.

Yes, I've seen the U shaped ones, but that doesn't look like what's
shown, just a straight tube?

Efficient they aint and the noise is horrendous. But it works

The noise adds to the fear-factor.

--- SoupGate-Win32 v1.05
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On 23/02/2025 16:21, Andy Burns wrote:

Spike wrote:

<https://mil.in.ua/en/news/pars-unveils-trembita-cruise-missile/>

"no moving parts"

Do they not use reed valves?

There is a kind of valveless pulse jets.

Most valveless pulse jets have the intake pointing in the reverse
direction, as per the photo in the above article, due to the exit of
gases through the inlet during the 'pulse'.
https://en.wikipedia.org/wiki/Valveless_pulsejet

For general interest in a real machine:
https://www.youtube.com/watch?v=gAKekhmTRaY

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On 23/02/2025 19:56, Andy Burns wrote:

The Natural Philosopher wrote:

Andy Burns wrote:

Spike wrote:

<https://mil.in.ua/en/news/pars-unveils-trembita-cruise-missile/>

"no moving parts"

Do they not use reed valves?

It is not necessary  if you use a folded tube and a resonant cavity.

Yes, I've seen the U shaped ones, but that doesn't look like what's
shown, just a straight tube?

Look again. There is no frontal air intake, juts a couple of rearward
facing ones

Efficient they aint and the noise is horrendous. But it works

The noise adds to the fear-factor.

I never find fear factor a useful metric for anything....

--
The biggest threat to humanity comes from socialism, which has utterly
diverted our attention away from what really matters to our existential survival, to indulging in navel gazing and faux moral investigations
into what the world ought to be, whilst we fail utterly to deal with
what it actually is.

--- SoupGate-Win32 v1.05
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On 23 Feb 2025 at 19:50:58 GMT, "The Natural Philosopher"
<tnp@invalid.invalid> wrote:

On 23/02/2025 16:00, Spike wrote:

As subject…

<https://mil.in.ua/en/news/pars-unveils-trembita-cruise-missile/>

(Safe)

I wondered if they would ever get around to that. The V1 was Hitlers
best V weapon. Cheap, launch anywhere and almost unstoppable in
sufficient numbers

Hell of a heat signature though, if that U-choob of beardy on his moped is anything to go by.

--
All of science is either physics or stamp-collecting.

Ernest Rutherford

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On 23/02/2025 19:50, The Natural Philosopher wrote:

On 23/02/2025 16:00, Spike wrote:

As subject…

<https://mil.in.ua/en/news/pars-unveils-trembita-cruise-missile/>

(Safe)

I wondered if they would ever get around to that. The V1 was Hitlers
best V weapon. Cheap, launch anywhere and almost unstoppable in
sufficient numbers

The V2 was launch anywhere with a transportable launch station that
could be set up in hours.

The Germans had built a fixed building for V2 assembly and launch but
was knocked out of true with an earthquake bomb and not used. https://en.wikipedia.org/wiki/La_Coupole


The V1 was in main was launched from fixed locations with concrete and
steel ramps and where there were dedicated buildings to prepare the V1
before flight. It was the fixed locations which ultimately were their
downfall as all on the continental coastal areas were destroyed. Easier
to destroy the launch sites than destroy them in the air.

--
mailto : news {at} admac {dot} myzen {dot} co {dot} uk

--- SoupGate-Win32 v1.05
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On 23 Feb 2025 16:00:53 GMT, Spike <aero.spike@mail.com> wrote:

As subject…

<https://mil.in.ua/en/news/pars-unveils-trembita-cruise-missile/>

(Safe)

Some form of ramjet perhaps? https://en.wikipedia.org/wiki/Ramjet

They need to be accelerated to a certain speed by boosters such as
solid-state rockets before the ramjet comes into action.

--

Chris

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On 23/02/2025 22:27, Chris Hogg wrote:

On 23 Feb 2025 16:00:53 GMT, Spike <aero.spike@mail.com> wrote:

As subject…

<https://mil.in.ua/en/news/pars-unveils-trembita-cruise-missile/>

(Safe)

Some form of ramjet perhaps? https://en.wikipedia.org/wiki/Ramjet

They need to be accelerated to a certain speed by boosters such as solid-state rockets before the ramjet comes into action.

It depends on the design of the ram jet or pulse but even the single
straight tube variety can be started with something as simple as a leaf
blower.

This video suggests that forward motion just increases efficiency of a
pulse jet, they can run without forward motion. https://www.youtube.com/watch?v=xJhazf0apN8

Jam jar pulse jet plus 3D printed (metal) https://www.youtube.com/watch?v=I7hsUvZmZ2k

There may be a need for some form of catapult or booster rocket to
initially get them airborne but these seem to be much smaller and a lot
lighter than those used during WWII and would require the kind of infrastructure that the Germans had to use to launch them.

--
mailto : news {at} admac {dot} myzen {dot} co {dot} uk

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On Sun, 23 Feb 2025 19:50:58 +0000, The Natural Philosopher wrote:

On 23/02/2025 16:00, Spike wrote:

As subject…

<https://mil.in.ua/en/news/pars-unveils-trembita-cruise-missile/>

(Safe)

I wondered if they would ever get around to that. The V1 was Hitlers
best V weapon. Cheap, launch anywhere and almost unstoppable in
sufficient numbers

The one that caught me and my mum out was a late version, that made no
noise until it fell. That gave us a 5 sec gap to run.

--- SoupGate-Win32 v1.05
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jon <reading.mostly@crap.org> wrote:

On Sun, 23 Feb 2025 19:50:58 +0000, The Natural Philosopher wrote:

On 23/02/2025 16:00, Spike wrote:

As subject…

<https://mil.in.ua/en/news/pars-unveils-trembita-cruise-missile/>

(Safe)

I wondered if they would ever get around to that. The V1 was Hitlers
best V weapon. Cheap, launch anywhere and almost unstoppable in
sufficient numbers

The one that caught me and my mum out was a late version, that made no
noise until it fell. That gave us a 5 sec gap to run.

The one that passed over my head at about 35’ altitude was a very early version, at a time when the general public had not yet been told of their existence. It reached its range setting about 800yds later and witnesses reported it dived to explode on contact, killing several people. It
shouldn’t have been flying so low, it may have been faulty (forced
labourers sometimes sabotaged the stuff they were making) or had been
damaged by ground fire.

--
Spike

--- SoupGate-Win32 v1.05
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jon <reading.mostly@crap.org> wrote:

On Sun, 23 Feb 2025 19:50:58 +0000, The Natural Philosopher wrote:

On 23/02/2025 16:00, Spike wrote:

As subject…

<https://mil.in.ua/en/news/pars-unveils-trembita-cruise-missile/>

(Safe)

I wondered if they would ever get around to that. The V1 was Hitlers
best V weapon. Cheap, launch anywhere and almost unstoppable in
sufficient numbers

The one that caught me and my mum out was a late version, that made no
noise until it fell.

That would have been a V2 (which were supersonic ballistic missiles).

Tim

--
Please don't feed the trolls

--- SoupGate-Win32 v1.05
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On 24/02/2025 19:01, Tim+ wrote:

jon <reading.mostly@crap.org> wrote:

On Sun, 23 Feb 2025 19:50:58 +0000, The Natural Philosopher wrote:

On 23/02/2025 16:00, Spike wrote:

As subject…

<https://mil.in.ua/en/news/pars-unveils-trembita-cruise-missile/>

(Safe)

I wondered if they would ever get around to that. The V1 was Hitlers
best V weapon. Cheap, launch anywhere and almost unstoppable in
sufficient numbers

The one that caught me and my mum out was a late version, that made no
noise until it fell.

That would have been a V2 (which were supersonic ballistic missiles).

Tim

V1 may have been silent for the dive to explosion part of attack. They
had a crude propeller type distance logger and when it reached the
desired distance the fuel was cut off (or in some models the fuel ran
out) some fins were moved to give it a steep dive. This perhaps would
have given a 5 second warning.

In flight to the target the V1 would have been extremely loud.

A V2 came in at maybe 1000+mph and there would have been zero warning
before the explosion.

--
mailto : news {at} admac {dot} myzen {dot} co {dot} uk

--- SoupGate-Win32 v1.05
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alan_m <junk@admac.myzen.co.uk> wrote:

On 24/02/2025 19:01, Tim+ wrote:

jon <reading.mostly@crap.org> wrote:

On Sun, 23 Feb 2025 19:50:58 +0000, The Natural Philosopher wrote:

On 23/02/2025 16:00, Spike wrote:

As subject…

<https://mil.in.ua/en/news/pars-unveils-trembita-cruise-missile/>

(Safe)

I wondered if they would ever get around to that. The V1 was Hitlers
best V weapon. Cheap, launch anywhere and almost unstoppable in
sufficient numbers

The one that caught me and my mum out was a late version, that made no
noise until it fell.

That would have been a V2 (which were supersonic ballistic missiles).

Tim

V1 may have been silent for the dive to explosion part of attack.

They had a crude propeller type distance logger and when it reached the desired distance the fuel was cut off (or in some models the fuel ran
out) some fins were moved to give it a steep dive. This perhaps would
have given a 5 second warning.

When the Doodlebug reached its range setting, the control surfaces were put into ‘vertical dive’ mode, which for the early part of the campaign resulted in the engine stalling due to the g-forces imposed on the fuel
supply.

People quickly learned that they were safe if the engine was running, and
only took cover when they heard it cut out. It didn’t take long for those ‘neutrals’ who wished to curry favour with the Germans to report this to them. The result was that the fuel system was modified to avoid this issue,
and the engine kept running until the warhead detonated.

Thank you, ‘neutral’ journalists.

In flight to the target the V1 would have been extremely loud.

A V2 came in at maybe 1000+mph and there would have been zero warning
before the explosion.

--
Spike

--- SoupGate-Win32 v1.05
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On 24/02/2025 21:27, alan_m wrote:

V1 may have been silent for the dive to explosion part of attack. They
had a crude propeller type distance logger and when it reached the
desired distance the fuel was cut off (or in some models the fuel ran
out) some fins were moved to give it a steep dive. This perhaps would
have given a 5 second warning.

Apparently what happened was it went into the dive and the jet sucked
air. Because of the dive angle..

In flight to the target the V1 would have been extremely loud.

Oh yes. Ive heard model pulse jets. Across the whole bloody airfield.
--
In a Time of Universal Deceit, Telling the Truth Is a Revolutionary Act.

- George Orwell

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