Help identifying pyro/military item?

Discussion in 'Fireworks Forum Chat And Discussion' started by Pyro Pete, Jan 14, 2021.

  1. Pyro Pete

    Pyro Pete Forum Editor

    Something metallic caught my eye walking the dog in the woods today, on closer inspection this 9" metal tube appears to have some kind of choke or nozzle inside, as if it's a pyrotechnic or flare or something. Anyone have any ideas? The only thing written on it is "311" on the black inner part that has four holes.

    I'd like to think it's something exciting that's fallen off an Apache but I'm sure someone will tell me it's not ;)



  2. Do you know approximate dimensions?
  3. Dayle Ward

    Dayle Ward Supports UKFR

    Them darn bears leaving all the rubbish from the teddy bears picnic!!
  4. RocketScientist

    RocketScientist Pro Firer/Crew

    Pyro Pete likes this.
  5. Richard Harwood

    Richard Harwood Pro Firer/Crew

    Definately the aluminium body and rocket motor of a parachute rocket distress flare. The three outer venturi at the bottom of the motor cause it to spin whilst in upward flight, and then the pyrotechnic flare with parachute is ejected at apogee by a small blackpowder charge.
    Pyro Pete likes this.
  6. hofnerite

    hofnerite UKFR Stash Photo 2018 Winner! Supports UKFR

    Does look like a parachute flare body. Possibly a parachute smoke flare as it has the cut outs.
  7. hofnerite

    hofnerite UKFR Stash Photo 2018 Winner! Supports UKFR

  8. Pyro Pete

    Pyro Pete Forum Editor

    Thanks everyone :)
  9. paul s

    paul s Supports UKFR

  10. blackbat

    blackbat Pro Firer/Crew Supports UKFR

    You wouldn't want that coming down on your head!
  11. elmo

    elmo Pro Firer/Crew

    Yes that’s exactly what it is, you can fire these via a firing system if you remove the top, gently ease that flare body out, insert an e match into the exhaust then put it back in the tube ( or 2” mortar )
    Apparently ......:rolleyes:
    Rookwood, littlegs, Pyromania and 3 others like this.
  12. Definitely a parachute rocket flare rocket unit, working my way through getting rid of thousands of them at the moment!
  13. hofnerite

    hofnerite UKFR Stash Photo 2018 Winner! Supports UKFR

    Take the motors off and you've got some very bright bengals ;)
    Jon likes this.
  14. elmo

    elmo Pro Firer/Crew

    Also very smokey, been there, tried that ;)
    scoops, Jon and hofnerite like this.
  15. Tinderbox

    Tinderbox Pro Firer/Crew Supports UKFR

    Parachute flare rocket casing. Fired loads and found a few on beaches. The skirt stabelises the motor. As the exhaust exits the choke it creates low pressure in the surrounding atmosphere which is then forced through the three venturi in the skirt (gaps/holes). This creates equal resistance on the entire lower circumference and is a very effective method of keeping it moving in a strait line. Far less susceptible to weather vaning like a rocket stick.

    you can see three outer exhausts around the main centre one. These force gases to exit tangentially to produce spin, adding more stability through angular momentum, torque and gyroscopic innertia.

    Actually fired two Schermuly white illumination para flares on NYE but the actual parachutes never took fire. Just the motors went. Still exciting to shoot from hand though. Expired in 2004. Always renew your flares sailors!
    Last edited: Jan 18, 2021
    Rookwood likes this.
  16. elmo

    elmo Pro Firer/Crew

    Also, when they are out of date, they have huge amounts of kick !!:rolleyes:
    Rookwood likes this.
  17. Tinderbox

    Tinderbox Pro Firer/Crew Supports UKFR

    I never noticed an increase in power. Just shows you though, The illumination flares themselves never took but they did deploy the chutes as we could see one drifting off. Wouldn't want to rely on outdated flares out at sea and I know some folks just keep old ones on board. Well worth the expense in renewing.
    elmo likes this.
  18. I can vouch for that, nearly took my thumb off with one on millennium night, nail just about recovering now (20 years ?)after damaging the nail bed. Also had some ex soviet navy smoke pots which had to put in water - tested one a two gallon zinc bucket, it boiled the bucket dry! plenty of smoke though. sent the rest back to supplier.
    elmo likes this.