New!

T85 reel

click here for complete detais

______________

New!

sistema videosub FishingBuddy

complete full HD video system to shoot clips of your catches

______________

New

zaino stagno BackPack

waterproof BackPack bag

___________

 

Totemsub for 2011

After more than 10 years of activity in the spearfishing area, some important changes are coming They involve mainly the reorganization of the different branches, now spacing from the traditional manufacturing of wooden spearguns to the spearfishing video production, and video housings building.......

read all...

_____________________

 

picnorway

visit our pics gallery to see the pics our friends sent us

--------------------------------

 

check the timetable of our documentaries on "Caccia e Pesca"

 

 

 

Totemsub wooden spearguns: building phylosophy and techical details


Most likely, there's no such thing as a "perfect" speargun. A speargun that's perfect for each and any of the infinite combination of factors that happen during the actual practice of spearfishing. Focusing too much on only one of these factors may end in a bad overall funcionality of the speargun. Our long experience, strenghtened by a nearly daily and intensive use of the products, brought us to eventually define a few points all of our products are structured upon, and that make our spearguns, each in its actual range of use, just fit for its duty, with the right mix of power, accuracy, robustness, reliability and ease of use. These points are:

- Barrel stiffness

- Shaft rail

- Correct balance and neutral buoyancy

Barrel stiffness: when a band powered speargun is loaded, the barrell is subject to a "di punta" load, that wich can induce a flexion of the barrel itself. , Of course, the entity of this flexion will be more or less accentuated by the bands load, and by the distance between the load axis and the barrel axis. In case a flexion should occur, this would mena that a part of the load we applied when stretching our bands will be used to actally flex the barrel, and it won't not be returned to the shaft at the moment of the release. It will be wasted, and this will also often cause an accuracy loss.
Shaft rail: a shaft is tipically very long a thin. If it's hung on two points, placed at a distance of 80 cm or more from each other, like it happens in a standard alu tube barrel, the shaft will show a downward flexion, most accentuated in its longitudinal center. The power band force axis, in a standard speargun, is usually offset several mm up from the shaft axis. When the trigger mech releases the shaft, the power bands load causes an increase in the shaft's flexion. The shaft leaves the speargun with a snake-like movement, where the tip obscilates in a wide range, loosing much of the power. A support point
placed in the middle of the barrel would not help if the barrel flexed under the load, as it would only amplify the shaft tendence to obscillate. All of our spearguns come with a shaft rail. On some of the models, it is not all lenght. However, only the sides of the rail are removed from some parts, for reasons that will be explained in the various spearguns sections on the site, while the shaft sits on the barrel for all its lenght. Our rails are carved in a section diametre that's different from the shaft diametre, thus minimizing the drag. By the way, the epoxy finish of the barrel makes it glass hard. The shaft leaves the rail right after the trigger is activated, so drag between shaft and rail is actually none.

Balance: it's very important, especially when practising the "stalk" and the "sneack" tecniques, tthat the speargun is perfectly balanced and neutrally bouyant, so that the spearfisherman's wrist does not get tired during the long action on the sea bottom, and so that the side training of the speargun is easy and silent. We focused our choice of the building material on laminated wood. We build each single wood list, cutting selected wooden boards in stripes, then glued with marine epoxy resin of the best available quality. This wonderful material presents excellent structural quality, and offers the possibiity to be hand crafted, on a piece by piece basis. The speargun body is very strong. Not being hollow, it can't be flooded, and it's also much less noisy if compared to a hollow barrel. The inertial mass of the barrel is sized to adequatey reduce the effects of recoil to a minimum. It is very easy to bring a laminated wood spargun to its pristine conditions after long and heavy duty with very simple care and mantainance procedures. Last, but not least, our wooden spearguns are very pleasing to the eye, for both the material quality, and for the great care posed by our personnel along all the steps of the building process.

All the parts are sized considering the overall balance of the specific speargun model. For example, in a "90", designed for shallow water "sneack" to small sized fish, power is positively not as important as manouverability is, or as the ease of shooting bent wristed without suffering the recoil effect on accuracy. On a three banded "120", instead, recoil control is actually a more interesting factor than the absolute ease of training.

At the end of the building process, each single speargun is tested in a pool, in order to exactly determine the amount of ballast to be internally added to the speargun handle and muzzle to make it almost neutral buoyant and balanced with the standard rig. Since we spend a lot of time and effort to ensure the best balanced performance for the single model use spectrum, we supply the speargun complete in every detail, so that the final user does not have to waste spearfishing time searching for an optimum final rig.

visit our on-line shop