airguns: Sporasub One Air 2012!!!

[tromic]

It uses the actual X-Power system

SPORASUB WEBSITE

Well, with same kits in same category of guns could not be big difference in performance. It is all about physics.

 

[spaghetti]

Well, with same kits in same category of guns could not be big difference in performance. It is all about physics.

One has the in-built kit, the other doesn't. One is supposed to have a better balance, and not any of the initial flaws of the first-batch Airbaletes. And then yes, maybe a slight difference in ballistic performance, but not too big.

Two different products, but not so much different after all. Makes sense.

This said, I don't know why but I like the Sporasub Air better than the Omer Airbalete. Truly!

 

[Broseidon]

That's not great reasoning tromic... the Airbalete is an old gun, the One Air has been in full time development for the last 24 months.

As an example, consider the two cars below...

Both cars have 8 Litre petrol engines. One produces 200bhp the other produces 1200bhp.

It's not just physics, it's evolution.

Just because an engine has the same displacement it does not mean it has the same power. The same goes for a gun. It stands to reason that the new One Air will be more powerful than the Airbalete. Sporasub have made a statement about it and have clearly said that the new gun is more powerful than a dry barrel Airbalete.

 

[spaghetti]

Bros, you're brave to challenge Tromic in a debate on airgun performance. I appreciate your courage! ;-)

Now, where's my pop corn?

 

[foxfish]

Bros likes to challenge people!!

However in this case Tromic is the one to listen to!

Crikey mate Tromic know more about air gun workings than most folk on this planet!!!!

I guesse there will be improvements but, they will be minor points based around underwater balance & small cosmetics.

 

[Broseidon]

Only if I think someone's making a bad point... tromic's assumptions just appear a little baseless as he knows next to nothing about the gun.

Logically, if the One was less powerful, as the two guns use the same dry barrel system, the One would actually represent a devolution not an evolution.

 

[DafyddRees]

In all honesty, I would only trust a non-biased, peer reviewed article where the individual writing it has no conflict of interest declared. No way would I base a choice on a statement made by the company itself!

 

[spaghetti]

Only if I think someone's making a bad point... tromic's assumptions just appear a little baseless as he knows next to nothing about the gun.

Logically, if the One was less powerful, as the two guns use the same dry barrel system, the One would actually represent a devolution not an evolution.

I don't know, Bros.
I appreciate how passionate you are about your next purchase, but if I'm not wrong you've never owned an airgun till now. You have your good points but I'd listen to Tromic with an open mind.

Then we'll get one of them Sporasubs and field test what all the fuss was about.

Im' sure the gun won't be a disappointment, I'm sure it will be an improvement. But still talking about thin air (as I've never shot that gun) I myself do not expect it will be so very much more powerful than an Airbalete+kit. Surely a bit more efficient but not much more powerful. Then, facts will eventually prove me wrong.

As for devolution, when Mares discontinued the Mares Mirage and invested all the business on the various Sten clones and Sten restylings, there you see the next product is not always more powerful than the previous.

I don't want to put you down, though. Will see.

 

[popgun pete]

Bigger volume air tank gives more power as air pressure in the gun is more constant during the shot, i.e. a graph of the pressure change has a flatter gradient and the gun has a lower compression ratio.

Speargun compression ratio was discussed at length here in this thread: http://forums.deeperblue.com/pneumatic-spearguns/86054-pneumatic-speargun-compression-ratio.html. It explains the effect on power of having greater air tank capacity and what happens when you remove some of that capacity via a Hi/Lo power switch on the gun.

 

[Broseidon]

Spag, I'm really not playing the fan-boy. It just seems that if a company redesigns their flagship product with an emphasis on power, gives it bigger air tanks (as I mentioned earlier and Pete just re-iterated) and generally tunes the gun up, it kind of logically follows that it will become more powerful, not, as tromic said earlier, less powerful.

I'm not personally concerned about having massive power, where I fish, it's no real benefit having a really powerful gun for hunting 3-4lb bass in low viz

I'm going to shut-up about this now until the sea tests

 

[tromic]

Spag, I'm really not playing the fan-boy. It just seems that if a company redesigns their flagship product with an emphasis on power, gives it bigger air tanks (as I mentioned earlier and Pete just re-iterated) and generally tunes the gun up, it kind of logically follows that it will become more powerful, not, as tromic said earlier, less powerful.

I'm not personally concerned about having massive power, where I fish, it's no real benefit having a really powerful gun for hunting 3-4lb bass in low viz

I'm going to shut-up about this now until the sea tests

Sorry Broseidon, you obviously misunderstood what I told. I did not tell One Air would be less powerful! I sad it might be about the same powerful as Airbalete if using free shaft, or about 50 % more powerful if Airbalete would be using standard x-power kit for shaft with a line slide. Higher compression ratio might mean more power to the gun, not less power, but higher loading effort. For example Cyrano has higher compression ratio than Spark. On same starting pressure, after loading both guns the final pressure would be higher in Cyrano than in Spark. Overall average pressure would be higher in Cyrano so Cyrano will be more powerful than Spark. The difference is not significant but there is a difference.

 

[spaghetti]

Bigger volume air tank gives more power as air pressure in the gun is more constant during the shot, i.e. a graph of the pressure change has a flatter gradient and the gun has a lower compression ratio.

Speargun compression ratio was discussed at length here in this thread: http://forums.deeperblue.com/pneumatic-spearguns/86054-pneumatic-speargun-compression-ratio.html. It explains the effect on power of having greater air tank capacity and what happens when you remove some of that capacity via a Hi/Lo power switch on the gun.

Ok, in regards to the compression ratio, I went to my local dive shop this morning, and had a talk with the dealer. He said he met the CEO of Omer/Sporasub company last week (Lorenzo Borri), and he gave him some anticipations about the One Air.

I didn't understand much because my shop keeper tends to speak drolled and fast, but this is what I caught. In the One Air, he said, the inner barrel is thinner compared to the Airbalete's inner barrel, and that gives a better compression ratio, ensuring the One Air to be a bit more powerful than the previous. I asked him "how much more powerful" and he said "A bit more powerful".

I'll leave further interpretations to the experts.

PS. I've bought an Omer America shaft at the shop. Talking and laughing, then finally the bill was 43 Euros. I say: 43 Euros for a shaft!!!! :rcard

 

[tromic]

My opinion is that thinner inner barrel is more for better buoyancy than to change compression ratio. There are other more important things that might be improved on Airbalete, like better (wider) air path from the outer barrel to the inner barrel and for example more efficient power regulator. Also lighter microspeed slider and maybe more effortless cocking the gun during loading. And lower price!

 

[Broseidon]

Pescasublog have just put a 'sea test' video of the One Air online... their test, however, is not shooting fish, it's shooting sea urchins. WTF :rcard

[ame=http://www.youtube.com/watch?v=icwm-cgtsYE]Sporasub One Air 90 - 2012 - test precisione pesca sub - YouTube[/ame]

 

[ivan.palumbo]

Is not easy to hit a small target (like urchin) at 4 meters with a new speargun.

However, we are filming a lot of video, even with fish, you will see them in the coming days (at least one week).

 

[Broseidon]

The accuracy was awesome, it just seemed a little mean to be using a living target

 

[spaghetti]

Bros, I understand your concern but I'd rather not to start an unnecesary controversy.
That sea urchin has been picked up manually (that is legal) and then donated to the food chain of the sea (that is fair).

 

[Broseidon]

New One Air pool test video from Sporasub - 90 & 100 models:

[ame=http://www.youtube.com/watch?v=syL8P4efGsg]SPORASUB NEW ONE AIR SHOOTING TEST BY ROBERTO TIVERON.mov - YouTube[/ame]



Sea test 1:

[ame=http://www.youtube.com/watch?v=9jhWkGaVNzs]SPORASUB NEW ONE AIR SPEARFISHING ACTION 2 BY ROBERTO TIVERON.mov - YouTube[/ame]

Sea test 2:

 

[spaghetti]

Now that (last clip) was a fairly nice gilthead bream!!!

 

[foxfish]

You can see the 90 does not recoil as much as the 100 but there is hardly anything anyway!
If you watch a band gun with similar power the guns kick like a mule.

Balance looks good on both models too...yep looks very promising