fludyoptasyphos
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Rambo ?!
hi , I've some questions
1) in the rambo II
the huge bomb who make multi-fireballs dropped by soviet helicopter is NaPalm ?
2) in rambo III
a big bomb dropped from the MilMi-24 Hind , is semtex or a soviet plastic esplosive (eg PPV5A , AIX2) with a solvent (why into the cave leak some
flaming viscous liquid) ???
3) the rambo explosive darts is C-4 with a contact explosive (eg Hg(ONC)2 ) in copper wire dart-shaped ?
4) PE-4 composition ?
please , ask me
thanks to all
✖ reaktiv ✖
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franklyn
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Who can say ?
This is the energetics chemistry section not improvised destructive devices
and soviet era ordnance identification. I have not seen Rambo II , III , and
perhaps is just as well , I don't expect these will have improved on the original.
That said be aware that what appears in motion pictures is right out of the
imagination of the script writer and often has little relation to reality. Watch
the credits of the film intently and observe the name of the special effects
coordinator or contractor. Visual Effects Society ,www.visualeffectssociety.com
can give you contact information.
Notable special effects companies _ http://en.wikipedia.org/wiki/Special_effect
Write or call explaining your interest in pyrotechnics as they relate to live special
effects , and someone may respond informatively to your query.
.
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gregxy
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The most common energetic used in the movies is black powder often mixed with
things like napthalene flakes to give big smokey fireballs but little actual blast.
Other things like improvised formulas using corn syrup and mothballs etc
are also totally fake. The power of explosives is usually greatly exaggerated
A gernade (or any high explosive) would not flip a car, it would most likely tear it in half.
The complexity of the electronics (lot of pretty curley wires!, big timers
counting down etc) is also exaggerated.
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The WiZard is In
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Quote: Originally posted by gregxy  | The most common energetic used in the movies is black powder often mixed with
things like napthalene flakes to give big smokey fireballs but little actual blast.
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I have been as mechanical useful as possible today - until
the glue dries overnight there is nothing left to do. Things are slow over in alt.post.yourself.nude so now upon this.....
Murry, Payne and Courtley, Some Aspects of Special Effects
Pyrotechnics and Explosive Practice in the Australian Film
Industry. 28th International Pyrotechnics Seminar. Adelaide
November 2001 make mention off —
Benzol peroxide used as a fireball material. [Hopefully not on a sunny day.]
Basic lead styphnate/PVA bullet hits.
1 kg. Cordite in "Membrane mortar."
10g meter det cord.
50 l diesoline/petrol fireballs propelled and ignited by 5ks blasting powder.
3kg flake TNT
Bullets striking ground - potassium picrate
Napthalene / titanium wool / flash maroon (KClO4/dark pyro aluminium)
3kg powdered TNT buried under 240 kg peat dust, 20 sawdust filled sandbags, 4 x 25 kg. sacks of talc dust.
PETN/ASA [?] bullet hits.
Potassium ferricyanide/potassium perchlorate co-precipitate for low flash and relatively low smoke production.
"HE simulators - copper oxide/aluminium powder. Up to 600gm in fiberboard cylinder.
Frank P Clark
Special Effects in Motion Pictures
Society of Motion Picture and Television Engineers 1966
Dinol [diazodinitrophenol D.D.N.P.] bullet hits.
[Edited on 4-5-2010 by The WiZard is In]
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