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Thread: J3 cropduster?

  1. #1

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    J3 cropduster?

    I have a 1945 J3 with the ONG crop dusting mod (C85, alum spars and prop) and am searching for tank, dispersal system ideas, pictures or equipment. Any input is appreciated!

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    I had a hangar neighbor who sprayed and decided he needed to set his J3 up. Installed the tank and booms, made one run and vowed never again...
    Remember, These are the Good old Days!

  3. #3

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    Quote Originally Posted by OLDCROWE View Post
    I had a hangar neighbor who sprayed and decided he needed to set his J3 up. Installed the tank and booms, made one run and vowed never again...
    Looks like a couple of Micronairs fed by an aluminum tank mounted to the front seat frame would spray a few acres OK. Keeping the whole thing within W&B. Emergency dump provisions might pose some more thinking, but if you’re not in a restricted weight mode it may not be necessary. Winter weather is giving me too much time to think up projects.

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    Cub Special Ed's Avatar
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    Morris Riggin in South Dakota has all the old Sorenson stuff. Might give him a call. Riggin Flight Service
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    WhiskeyMike's Avatar
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    Quote Originally Posted by ptclark1960@gmail.com View Post
    I have a 1945 J3 with the ONG crop dusting mod (C85, alum spars and prop) and am searching for tank, dispersal system ideas, pictures or equipment. Any input is appreciated!
    We had numerous J-3's converted from Ag to Banner towing, though most were 135 and 150HP. Typical install was the Sorenson belly tank. We left them behind with the booms and pumps in Arkansas and throughout the Mississippi delta when we brought the planes home to Boston. With an 85HP you might want to install a smaller tank in the rear seat area. Keep in mind though, that in the event of a crash you become sandwiched between the tank and engine. A small belly tank might be a better option. That's partly why Piper developed the Pawnee. I specifically remember a PA-18A that crashed and the pilot died from traumatic shock when squeezed between the factory spray tank and the engine. You might also want to avoid chemicals in the cockpit. One of the J-3 sprayers we bought in Arkansas had a purple rudder-which we later found out was to alert people on the ground to its load of 2-4-D. Just my 2 cents on a cold snowy night.
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    Cub Special Ed's Avatar
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    Not just a sandwich, but a burned one if you hit something hard enough with that fuel tank up front! That was why them old boys turned a j3 into what they called a cutback cub. Put fuel tank over pilots head instead of up front. The pa11 sure was a blessing to sprayers everywhere.
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    The 'cutback duster' was a fairly common ag aircraft here in Arkansas for fertilizing rice and flying fish food on ponds. The operators I knew went through them every winter because of the corrosive nature of the product. One operator I knew ran 180 hp without electrical system. They set them up to start easy by hand. Have the load delivered to the remote strip and short ferry to fields. The Ag Aviation museum in Mississippi is probably a good resource for your search. I'm vague on anything specific about it.
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    180Marty's Avatar
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    The 'cutback duster' was a fairly common ag aircraft here in Arkansas
    My Dad bought one out of Arkansas in 1964 and used it in Virginia. It had a 125 hp O-290. He sprayed liquid such as Toxaphene and DDT, 245-T on pine forest, and could seed rye into soybeans with a spreader. I did a little mixing in a 55 gallon barrel when I was about 9 yrs old.
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  9. #9

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    When i purchased my j-3 it came with a 60 gallon sorenson belly tank, pump and mount. As a kid working for a crop sprayer we put 40 gallons of water in the 85 j-3 and 60 in the 95 supercub. If you get any where close to nw minnesota this summer you can take them home with you.
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  10. #10

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    When i purchased my j-3 it came with a 60 gallon sorenson belly tank, pump and mount. As a kid working for a crop sprayer we put 40 gallons of water in the 85 j-3 and 60 in the 95 supercub. If you get any where close to nw minnesota this summer you can take them home with you. Sorry j-3 stays with me.
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ID:	54221My first Ag Plane. 90HP J-3 with back seat tank
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  12. #12

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    J3 cropduster

    Quote Originally Posted by mbsyvers View Post
    When i purchased my j-3 it came with a 60 gallon sorenson belly tank, pump and mount. As a kid working for a crop sprayer we put 40 gallons of water in the 85 j-3 and 60 in the 95 supercub. If you get any where close to nw minnesota this summer you can take them home with you. Sorry j-3 stays with me.
    I might make the trip just to get it. Could you get some detailed information at 620-716-1691? Curious if this would fit in a 170B to transport? Thanks!

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