The Lieutenant Johnson Hybrid

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SpudFiles Forum Index » Hybrid Cannon Showcase » The Lieutenant Johnson Hybrid

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The Lieutenant Johnson Hybrid

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bigbob12345

Posted: 05/04/2008 0:12 AM Post subject: The Lieutenant Johnson Hybrid

Experienced n00b
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Joined: 01 Dec 2007
Posts: 1516
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Well this is my first submition to the hybrid cannon showcase.
I am having problems fueling it but Ill get to that later. i have gotten a couple shots off, and it is very loud especially at higher mixes.
I Name it Lieutenent Johnson Laughing

No idea why, it was just the first thing that popped into my messy brain.

Here is an intro pic for ya guys

Well I better give some specs so...

Chamber:8in of 1.25in black iron pipe
Barrel:6ft of 3/4in black iron pipe
Valve:Just a good ol' union(3/4in)
Ignition:Electric BBQ ignitor(makes a sizable rapid firing spark)
Fuel:Propane
Air source:Bike pump
Velocity:Insanely fast
Noise output:ALOT

Well this gun wins the award of most expensive gun I have made yet at a whopping $70 Shocked

Probably seems cheap to you but to me thats 5 weeks worth of money gone Sad

I also wasted some money but that was not included in the total cost. I broke a $9 gauge and bought a $13 air reg that didn't work and I cant return it because I was running propane through it Crying or Very sad

As said above i am having trouble fueling this thing and have done all the calculations in hybrid fueling 101 many times and keep on getting the same answer, to pressurize the meter to 7.3psi to get a 1x mix. I don't know if this is right or wrong but it doesn't work when I pressurize it to that. The times I have gotten it to work have been sheer luck.
So I would love it if someone could calculate the pressure I need to pressurize my fuel meter to to get a 1x mix and see if they get the same answer.
BTW meter is 1.221ci and chamber is about 14ci

I promise Ill get you a good res vid if I can get it working consistently.

A collection of pics

Tell me what you think

Edit VID
Alot of effrt went into getting you this vid
I know I didnt do some of the shots that I said I would do becasue it got dark.
Anyway enjoy

Link

Last edited by bigbob12345 on 05/07/2008 18:44 PM; edited 8 times in total

Posted: 05/04/2008 1:09 AM Post subject:

Major General

Joined: 01 Feb 2007
Posts: 1456
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pretty sweet. looks like you really cranked in that plug...

bigbob12345

Posted: 05/04/2008 8:28 AM Post subject:

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Thanks
And that plug actually wasnt cranked that much, it just slid in there with ease(well I guess ease isnt the word for cranking it in with a pipe wrench as hard as possible).

Edit:Not to many responces Sad

SpudFarm

Posted: 05/04/2008 8:41 AM Post subject:

Hybrid Guy
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hey congratts on your first hybrid! welcome on the team!

what did you shoot with and what did you shoot at?
how high was your mix?

just try until you get the mix right.. anf the mistake can be that the meter is to big for your chamber so the gauge is not accurate at 7PSI..

nice first hybrid you got there..

bigbob12345

Posted: 05/04/2008 8:51 AM Post subject:

Experienced n00b
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Joined: 01 Dec 2007
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Thanks
It now has a name, as seen above

And when I shot it once it was 1x, another time it was 3x, and the last time was 4x(LOUD).

Maybe Ill just pressurize the meter to the amount needed for the mix.
example:2x=14.7psi, 3x=22.2psi and so on

SpudFarm

Posted: 05/04/2008 8:56 AM Post subject:

Hybrid Guy
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that will solve your prob..
and remember to use a strong burst disk that don't burst if you use it at a mix lower than the mix it was made for.

try to wad up a marble and put it through a two by four.. go to 6x today and get some damage shots

bigbob12345

Posted: 05/04/2008 9:01 AM Post subject:

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Joined: 01 Dec 2007
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I tested the my burst disks up to their burst pressure with my hp pump to make sure they burst at the peak of the shot.

And I have some heavier ammo than marbles that should be a little more fun.

SpudFarm

Posted: 05/04/2008 9:11 AM Post subject:

Hybrid Guy
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ok then cast some lead Very Happy

try some bolts at steel plate to!

and last do some buck shot with lead pellets.. that is the most over whelming shot i had since it had more power than a 12gauge on 30 feet.

bigbob12345

Posted: 05/04/2008 9:16 AM Post subject:

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Yes that is what I was getting at
Lead+The luitendent johnson+6x=Fun, yaaay
Laughing

I currently dont have any sheet metal tho shoot the bolts at so ill just shoot them at an old liscence plate.

I dont have any lead pellets but i have thousands of copper bbs which I will shoot at a 2 by 4 and try to replicate your very impressive result.

ilovetoblowthingsup

Posted: 05/04/2008 9:23 AM Post subject:

The Suppressor Man
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Joined: 30 Mar 2007
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hmm looks like a nice gun bigbob

bigbob12345

Posted: 05/04/2008 9:24 AM Post subject:

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Thanks
stupid message is too short thing

SpudFarm

Posted: 05/04/2008 10:37 AM Post subject:

Hybrid Guy
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Joined: 04 Nov 2006
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1065.13 Spud Bux

bigbob12345 wrote:

I dont have any lead pellets but i have thousands of copper bbs which I will shoot at a 2 by 4 and try to replicate your very impressive result.

eyy thanks!!

SP_A0377.jpg

Description:

:D:D:D

Filesize:

191.87 KB

Viewed:

27 Time(s)

bigbob12345

Posted: 05/04/2008 10:41 AM Post subject:

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I never cease to be impressed by that picture.

STHORNE

Posted: 05/04/2008 10:43 AM Post subject:

Master of Spuds
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Joined: 14 Feb 2007
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500.99 Spud Bux

very nice hybrid bigbob...

and about the "message too short thing". all you have to do is hold the space bar for a couple seconds after typing a short message and hit post...

bigbob12345

Posted: 05/04/2008 10:46 AM Post subject:

Experienced n00b
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Joined: 01 Dec 2007
Posts: 1516
370.57 Spud Bux

Thanks

Edit:spacebar thing works, cool

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