Hatsan Jet I/II Discussion

[Jayrotx821]

Seems like one of the drop block regulator valve assemblies being sold on Ali should fit the Jet.  This way you'd be able to simply screw on a bottle.  I only got my Jet over the weekend but I've been following this thread for a while. 

Unfortunately/fortunately I'm at work right now and can't tear the thing apart to fix it until it's broke but the wheels in my head are spinning.

[naptemp]

Seems like one of the drop block regulator valve assemblies being sold on Ali should fit the Jet.  This way you'd be able to simply screw on a bottle.  I only got my Jet over the weekend but I've been following this thread for a while. 

Unfortunately/fortunately I'm at work right now and can't tear the thing apart to fix it until it's broke but the wheels in my head are spinning.

I do not think it is possible to add drop block for the Jet 2.
For Jet 2 the valve and the 2 air cylinders cannot be separated.

[Jayrotx821]

Oops.  I did not specify.  I'm working with a jet 1.

[avator]

Pull both tanks and the valve to add the drop block to the Jet 2? Basically turns it into a Jet 1 with the drop block and tank.

[naptemp]

Pull both tanks and the valve to add the drop block to the Jet 2? Basically turns it into a Jet 1 with the drop block and tank.

So, the Jet valve is removed and the new valve will be the valve from the drop block?
I am not sure if the Jet valve and the drop block valve have the same diameters.

Has anybody tried that?

[Jayrotx821]

Yes.  That's basically what I'm thinking.  Then I can lose the shoud can get a slip on moderator adapter too.  Instead of the hokie adapter that threads onto the shroud. 

[naptemp]

Yes.  That's basically what I'm thinking.  Then I can lose the shoud can get a slip on moderator adapter too.  Instead of the hokie adapter that threads onto the shroud.

I am getting a drop block for the Notos.
It does not have the regulator, but takes a regulated bottle.

I will update here if it does or not fit the Hatsan Jet.

[ModFox]

Mwahahahaha I cut my Jet handgrip in half to make it more packable and am drilling out a bunch of mass from the handle and shroud, next is to fix a mini telescoping pack fishing rod into the upper stock reciever mwaahahahahaha

[ModFox]

Also I did get the el cheapo Crosman .22 14+ inch barrel to try to fit into my jet .25. No go, the Crosman barrel is maybe 2 mm too small. I considered sleeving it, but its not a project I intended to follow thru with. Figured I would use that .22 barrel for something else one day, like a .177 pistol upgrade.I really want to go w the FX liner in .30 for my jet, they should be the same 12mm barrel OD.

If anyone has a .22 Jet and can give the barrel OD measurement please do. I'm unsure if its smaller than the .25, which I believe is 12mm.

[aimsmall]

What is everyone using to carry their hatsan out and about? Slinging it?
any kind of holster available?
the packable post from modfox and another thread on cases has me thinking how I'm going to carry mine.
I'll probably be carrying this with my rifle. (not in the same case)

[naptemp]

Are there any barrels that can fit the Jet?
Barrels which do not require significant skills and tools (lathe, etc).

[ModFox]

Are there any barrels that can fit the Jet?
Barrels which do not require significant skills and tools (lathe, etc).

I'm aware of the Air Arms 12 inch made by LWalther being fit by FowlerAirguns on his youtube channel. He doesn't show the detail much but he did it. I think these FX barrels will do the trick just need to get one 

[ModFox]

For a trek..

[ModFox]

Down to like 2lbs so far I think.

[ModFox]

Are there any barrels that can fit the Jet?
Barrels which do not require significant skills and tools (lathe, etc).

Not sure if Fowler used a lathe or not, but I was planning to use a cheap corded electric drill and a bench mount as a lathe.

[Mr.P]

Down to like 2lbs so far I think.

Are you also bringing a hand pump or a small bottle?

[Jayrotx821]

Yes.  That's basically what I'm thinking.  Then I can lose the shoud can get a slip on moderator adapter too.  Instead of the hokie adapter that threads onto the shroud.

I am getting a drop block for the Notos.
It does not have the regulator, but takes a regulated bottle.

I will update here if it does or not fit the Hatsan Jet.

Does anyone know the ID of the Jet 1 air cylinder, off hand?  It could probably be modified to accept a QB type drop block as well.

[ModFox]

Down to like 2lbs so far I think.

Are you also bringing a hand pump or a small bottle?


I'm taking two charged single Jet1 tubes and will drop in on diving shops for refills or find locals w a pump.

[ModFox]

Does anyone know the ID of the Jet 1 air cylinder, off hand?  It could probably be modified to accept a QB type drop block as well.
[/quote]

Hope this helps some

[Jayrotx821]

Ok.  The saga continues.  I've reached out to a local Texas guy who makes drop block for several other airguns to see if he'd make one for the jet 1.  He said he could but I'd have to send him the valve block so he can make sure the drop block is timed correctly.  I'm not at that point yet as my current setup seems to be working. 

What I don't understand is the relationship between the three gauges.  I fill my 3k bottle to 3k, the asa gauge reads 2400 psi and the gauge on the gun is at 120 bar roughly.  What is weird is the reg was set at 1800 psi.  I tested it using the same asa that I installed on the pistol.  Why now, that it is on the gun does the reg pressure read higher??? And it seems the reg pressure seems to drop in relation to the pressure in the bottle? 

It seems that the gauge on the gun is close to the reg volume but the gauge on the asa is way off

I'm going to take it all apart and retest the reg pressure to see if it is the same as it was when I first checked it.  Other than that I'm confused.  The asa and reg are your basic ali Express setups so it's nothing fancy like a Ninja. 

Shouldn't the asa gauge remain where the reg pressure is set?  At least until I fall below that value in the bottle.