Welcome guest, is this your first visit?
Member
Discoveries
 
Page 1 of 3 123 LastLast
Results 1 to 15 of 36
Like Tree12Likes

Thread: How Mailbox blowers work?

« Prev Thread | Next Thread »
  1. #1
    us
    Mar 2009
    Fisher Coinstrike, Fisher 1236-X2 and Gold Bug
    23
    1 times

    How Mailbox blowers work?

    I would like to find out if any one knows how those mailbox blowers work. Maybe a underwater shipwreck hunter can answer this question in more detail. I would also like to know if it is possible that I could make mailbox blowers myself. I would like to make it as cheap as possible if that is reasonable.

    Thanks

    Tom.

  2. #2
    Charter Member
    pa
    Pirate of the Ays

    May 2004
    Panama
    Minelab Excal 1000
    1,721
    138 times
    All Types Of Treasure Hunting

    Re: How Mailbox blowers work?

    Tom, first off Welcome Aboard TreasureNet. Send a PM "RGecy", he has a good set of plans on how to build a blower. The original concept comes from Mel Fisher, who wanted to force clear water at the surface to increase visibility on the bottom. However he soon realized that it did much more by forcing a jet of prop wash to the bottom and removing centuries of overburden from the shipwreck buried in the sand.

    Tom

  3. #3
    us
    Feb 2004
    lake mary florida
    Wesmar SHD700SS Side Scan Sonar,U/W Mac 1 Turbo Aquasound by American Electronics,Fisher 1280x,Aquasound UW md,Aqua pulse AQ1B
    2,265
    255 times
    All Types Of Treasure Hunting

    Re: How Mailbox blowers work?

    Tom,

    Welcome to the forum.What size is your boat and prop/s?It would be cheaper to buy a blower thats already built then to have one built from scratch.I have a 30 inch blower that i can sell you and also custom fit it to your boat.
    Millions of dollars of Spanish treasure await those who would dare brave the eye of the hurricane.

  4. #4
    us
    Oct 2006
    Central Florida
    excalibur 1000, 1280x, impulse
    68
    2 times

    Re: How Mailbox blowers work?



    This is a mailbox Fisheye put on the back of my boat. You can see the swivel point on the back of the boat which allows it to swing 180 degrees so that it covers the propeller and allows it to redirect the prop wash straight down. The force it generates is quite impressive and can actually lift the stern of the boat. This particular boat weighs 12,000 pounds.

  5. #5
    us
    Feb 2010
    27

    Re: How Mailbox blowers work?

    The mailbox was first built to uncover shellfish beds in the Chesapeake bay area then were adapted for use in uncovering treasure.Still none the less it is the best tool in are line of work.Just a little more info on how they work is the boat is first anchored in a 3 or 4 point angle.Bow,stern etc. .Then the mailboxes are pinned in the down position.At this time after being put in the spot you plan to uncover the boat is then put in gear.This then directs the prop wash down and removes the sand from over the nice piles of long lost goodies for you to collect and enjoy. Thank you Capt Rodney

  6. #6
    us
    Scotland, Aye !!

    Oct 2004
    N. San Diego area (Pic of my two best 'finds'; son and grandson)
    Minelab Explorer
    18,309
    9528 times
    Research and History
    Honorable Mentions (2)

    Re: How Mailbox blowers work?

    Tom:
    And if you become operational with the mailbox, I offer you these suggestions:
    1. No divers allowed below in the immediate area when the blower is operating
    2. Blow slowly at first
    3. Blow for short periods of time
    4. Inspect the blown area frequently
    5. Log your time of each activity
    Don.....

  7. #7
    us
    da book worm--researcher

    Feb 2007
    callahan,fl
    delta 4000 / ace 250 - used BH and many others too
    16,585
    3219 times
    Honorable Mentions (1)

    Re: How Mailbox blowers work?

    basically its just a tiltible metal cage the goes behind the ships prop area and deflects the prop wash towards the bottom -- the size of the props and the speed their run at will of course affect how deep and how strongly they will reach downward .

    run slowly --check your holes often -- no divers down while prop washing (for safety reasons) -- of course log what areas you do and what finds you find in your scour holes.

    word to the wize. ---due to the high stress put upon it by the prop wash --it needs to be made strongly -- not cheaply

  8. #8
    us
    Mar 2009
    White's Surf PI Pro Dual Field/Minelab Sovereign Elite
    331
    125 times

    Re: How Mailbox blowers work?

    Quote Originally Posted by FISHEYE
    Tom,

    Welcome to the forum.What size is your boat and prop/s?It would be cheaper to buy a blower thats already built then to have one built from scratch.I have a 30 inch blower that i can sell you and also custom fit it to your boat.
    Fisheye, what prop size and engine capacity will your 30 inch blower handle? Is it still available?

  9. #9
    us
    discovering & preserving our past for future generations

    Dec 2004
    Aquapulse, DetectorPro Headhunter, Fisher F75
    2,258
    93 times
    Shipwrecks

    Re: How Mailbox blowers work?

    Fisheye, remember this boat? Didn't Mike use this in NC (with blowers?)

    We were at the Stock Island docks recently and saw it was being prepped for some type of joint venture between Seatow and Tow Boats US.

    Also tied up at the old shrimp docks were a couple of other boats you may recognize as well.

    Tom
    Attached Thumbnails Attached Thumbnails Click image for larger version. 

Name:	Ocean star1.jpg 
Views:	1302 
Size:	87.3 KB 
ID:	431498   Click image for larger version. 

Name:	Ocean Star3.jpg 
Views:	1161 
Size:	97.0 KB 
ID:	431499   Click image for larger version. 

Name:	Dare & JB Magruder.jpg 
Views:	1385 
Size:	49.0 KB 
ID:	431500   Click image for larger version. 

Name:	Mel Fisher Fleet.jpg 
Views:	1479 
Size:	79.1 KB 
ID:	431501   Click image for larger version. 

Name:	JB Magruder blowers.jpg 
Views:	3349 
Size:	89.1 KB 
ID:	431502  


  10. #10
    za
    Sep 2007
    Sebastian Florida
    Fisher 1280x Aqua
    31

    Re: How Mailbox blowers work?

    Tom I dont want to hijack your thread but I am still looking for a used blower, 20'-23' for my boat a few people have come foward but so far to no avail, why dont you call me maybe we can go together?.............John

  11. #11
    us
    discovering & preserving our past for future generations

    Dec 2004
    Aquapulse, DetectorPro Headhunter, Fisher F75
    2,258
    93 times
    Shipwrecks

    Re: How Mailbox blowers work?

    Here is the 30" blower I think Fisheye was referring to:

    http://www.ioffer.com/i/TREASURE-HUN...CTOR--61779721

    Also, I found some smaller ones but don't know if they are still for sale (see attachment)

    Tom
    Attached Thumbnails Attached Thumbnails Click image for larger version. 

Name:	blowers for sale.jpg 
Views:	1432 
Size:	125.6 KB 
ID:	431508  

  12. #12
    us
    Mar 2009
    White's Surf PI Pro Dual Field/Minelab Sovereign Elite
    331
    125 times

    Re: How Mailbox blowers work?

    Hi All, from anyone's practical experience, what minimum engine size, prop size and blower size would allow one to blow holes to bedrock in say 30, 40 or 50 ft. of water. I know this is a subjective question and there are far more factors to consider that I am unaware of such as depth of overburden above the bedrock, etc., etc. I have no frame of reference or experience to pose this in any other way. I am looking to buy a boat and outfit it to hunt here in Florida. I appreciate any opinions or thoughts on this. Thanks.

    Pete

  13. #13
    us
    Feb 2004
    lake mary florida
    Wesmar SHD700SS Side Scan Sonar,U/W Mac 1 Turbo Aquasound by American Electronics,Fisher 1280x,Aquasound UW md,Aqua pulse AQ1B
    2,265
    255 times
    All Types Of Treasure Hunting

    Re: How Mailbox blowers work?

    Tom G,

    The ocean star was used on the El Salvadore wrecksite for about 2 years.Heres some pics when me mike and frank went up to blow some 100 foot holes in november of 2006.Also Greg Bounds and Rodney Grambo came up to look at the ship.Jim Sinclair was there to,to identify the wood we brought up as dated 1750.The capt at the helm is Craig Boyd,the other guys running around were investors.We were out on site for a week.We had to blow our way to the sandbar and blow our way out.The weather started to get bad so we had to go.We had a few mishaps while there.The props almost ate the jet ski when the bow line got wrapped around one of the shafts and sucked the ski under the ship and the bow anchor cable snapped.Had to use the crane to pull the 3000lb anchor back up.The wood was found 30 feet down in the sand.The 100 foot hole we blew put a 5 foot sand berm all around the ship.


    The 30 inch blower that i can sell is off the former HRD r/v Deep venture.Toms favorite boat.This blower can handle a 24-28 inch prop and a engine from 150hp to 400hp.
    Attached Thumbnails Attached Thumbnails Click image for larger version. 

Name:	100_2814.JPG 
Views:	1119 
Size:	384.4 KB 
ID:	431551   Click image for larger version. 

Name:	100_2831.JPG 
Views:	1048 
Size:	132.8 KB 
ID:	431552   Click image for larger version. 

Name:	100_2840.JPG 
Views:	1057 
Size:	541.4 KB 
ID:	431553   Click image for larger version. 

Name:	100_2861.JPG 
Views:	1067 
Size:	485.7 KB 
ID:	431554   Click image for larger version. 

Name:	100_2854.JPG 
Views:	1015 
Size:	143.8 KB 
ID:	431555  

    Click image for larger version. 

Name:	100_2859.JPG 
Views:	992 
Size:	361.1 KB 
ID:	431556   Click image for larger version. 

Name:	100_2863.JPG 
Views:	1459 
Size:	430.8 KB 
ID:	431557   Click image for larger version. 

Name:	100_2874.JPG 
Views:	957 
Size:	144.9 KB 
ID:	431558   Click image for larger version. 

Name:	100_2817.JPG 
Views:	1039 
Size:	369.3 KB 
ID:	431559  
    Millions of dollars of Spanish treasure await those who would dare brave the eye of the hurricane.

  14. #14
    us
    discovering & preserving our past for future generations

    Dec 2004
    Aquapulse, DetectorPro Headhunter, Fisher F75
    2,258
    93 times
    Shipwrecks

    Re: How Mailbox blowers work?

    Pretty cool pictures John. Any updates on Mike?

    The Rodney you have pictured is Rodney Grambo, who now works for Seafarers.

    Jim Sinclair must have been impressed with the Ocean Star.... we looked it over as a potential dig boat for the deep Juno beach site in the fall of 2008 when it was dry docked at the time.

    Tom

  15. #15
    us
    Feb 2004
    lake mary florida
    Wesmar SHD700SS Side Scan Sonar,U/W Mac 1 Turbo Aquasound by American Electronics,Fisher 1280x,Aquasound UW md,Aqua pulse AQ1B
    2,265
    255 times
    All Types Of Treasure Hunting

    Re: How Mailbox blowers work?

    Tom,

    Mike has 9 more years to go in prison.He was going to appeal his plea deal but found out that if he loses,then hes looking at life,so he says he will just do the remaining time.

    Thanx for pointing out the typo i did on grambo,i knew he was grambo but typed bishop for some reason,lol.

    Last i heard on the ocean star was that the homeland security gov people hired the ship for 3 weeks at 10k a week to go look for narco subs coming from Columbia or south America.One of the people involved called me and asked me how i would search for them.I told them to use thermal imaging an since they had access to all the sat systems they could use them as well.Last info i got was the ship had mechanical problems and the people at homeland security bailed on them.And that capt Boyd wanted to buy the ship.It costs a lot to have a ship that size sitting idle at a dock.Plus costs a lot to run it.1 diesel tank on it is 5000 gallons.Jim liked the ocean star.I liked it too.The only thing bad about that ship is the toilet is a incinerator.It doesn't flush.Fire burns up the waste.Doesn't smell very good on deck afterwords.Craig said he was gonna deep six the toilet and put a holding tank in with a house type of toilet.

    The ocean star can blow holes in 60 feet of water.
    Millions of dollars of Spanish treasure await those who would dare brave the eye of the hurricane.

 

 
Page 1 of 3 123 LastLast

Remove Ads

Sponsored Links

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •  

Search tags for this page

craig boyd treasure hunter
,

mailbox blowers

,

mailbox propwash deflector

,
mailboxes mel fisher
,

mel fisher mailbox

,
mel fisher mailboxes
,
mel fisher water jet
,
mel fisher's mailbox thrusters drawing
,
pictures of old mel fisher fleet
,
treasure hunting mailboxes
Click on a term to search for related topics.
Powered by vBadvanced CMPS v4.3.0