Sunday, December 15, 2019
  • Welcome to the DeeperBlue.com Forums, the largest online community dedicated to Freediving, Scuba Diving and Spearfishing. To gain full access to the DeeperBlue.com Forums you must register for a free account. As a registered member you will be able to:

    • Join over 40,000+ fellow diving enthusiasts from around the world on this forum
    • Participate in and browse from over 496,000+ posts.
    • Communicate privately with other divers from around the world.
    • Post your own photos or view from 7,300+ user submitted images.
    • All this and much more...

    You can gain access to all this absolutely free when you register for an account, so sign up today!

Alcedo "Hydra" hydropneumatic gun

OP
OP
popgun pete

popgun pete

Well-Known Member
Jul 30, 2008
3,377
744
153
Australia
On eBay the very first version of the Alcedo "Hydra" is being offered for auction, starting at 699 euros (!), although unfortunately this example is lacking its forward barrel. https://www.ebay.com.au/itm/ALCEDO-HYDRA-I-1955-tutto-in-metallo-VERDE-fucile-SUB-VINTAGE-ultra-rare/254272200513?_trkparms=aid=888008&algo=DISC.CARDS&ao=1&asc=20140109134348&meid=a4b3d04a19684234b5798e5098bc7d58&pid=100042&rk=1&rkt=1&sd=254186840806&itm=254272200513&_trksid=p5713.c100042.m2062

This gun operates in the same way as the more common "Hydra II", but does not have the auxiliary hydropump that sits on top in the compressor version of the guns. Probably the long barrels can get bent as it is not uncommon to see these guns offered without them.
Alcedo Hydra IR.jpg

It is interesting to reflect on these powerful and relatively complex guns being used in a period when modern spearfishing (with guns) was in a sense just crawling up out of the primordial ooze and that someone saw fit to offer them to the relatively small market at very high prices then and stratospheric prices now for what are incomplete and often non-functioning guns.
s-l1600 (2).jpg

s-l1600 (3).jpg
 
Last edited:
  • Like
Reactions: Zahar
OP
OP
popgun pete

popgun pete

Well-Known Member
Jul 30, 2008
3,377
744
153
Australia
Here is a modified Alcedo “Hydra Sprint 62” which has had a lever fitted to the hydropump. The gun in question appeared on the "Sea Hunt" TV program in one episode and has been purchased by collector Alec Peirce. The video shows how the gun works, but my guess is that Alec does not realise that it is a hydropump and that the gun is pressurized separately via a hand pump before the season starts. The lever mechanism is a neat addition as it would make the hydropump easier to operate in the water due to the mechanical advantage.

Alcedo Hydra from Sea Hunt TV show

1570330554013.png
 
OP
OP
popgun pete

popgun pete

Well-Known Member
Jul 30, 2008
3,377
744
153
Australia
Here is a still frame showing the hydropump in action. This additional lever system is a good modification, but adds more weight to an already heavy gun. Also something to snag line on when everything goes pear-shaped as any free line in the water always seems to seek out any rearward facing hook or projection.
Alcedo Sprint 62 lever mod hydropump in action.jpg
 
DeeperBlue.com - The Worlds Largest Community Dedicated To Freediving, Scuba Diving and Spearfishing

ABOUT US

ISSN 1469-865X | Copyright © 1996 - 2019 deeperblue.net limited.

DeeperBlue.com is the World's Largest Community dedicated to Freediving, Scuba Diving, Spearfishing and Diving Travel.

We've been dedicated to bringing you the freshest news, features and discussions from around the underwater world since 1996.

ADVERT