Sujet : Re: OT: Repeatably lobbing "projectiles"
De : liz (at) *nospam* poppyrecords.invalid.invalid (Liz Tuddenham)
Groupes : sci.electronics.designDate : 24. Nov 2024, 15:36:33
Autres entêtes
Organisation : Poppy Records
Message-ID : <1r3j622.inw1grtpjediN%liz@poppyrecords.invalid.invalid>
References : 1 2 3 4 5 6 7 8 9
User-Agent : MacSOUP/2.4.6
Don Y <
blockedofcourse@foo.invalid> wrote:
[...]
Couldn't the plunger be "polystyrene cup shaped" so it stays behind
for reuse, automatically?
No - because the cup has to be in contact with the projectile to
maintain its shape while it is accelerated up the barrel. That means
the air pressure must be behind the cup.
The cup could be stopped rapidly at the mouth of the gun by some sort of
obstruction, but that would risk damaging it and/or fouling the
projectile.
-- ~ Liz Tuddenham ~(Remove the ".invalid"s and add ".co.uk" to reply)www.poppyrecords.co.uk