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  • Originally posted by RB211 View Post
    The faster they go, the better it is to be big, so you can see it! That EDF of mine gets tiny very quickly, hard part is keeping orientation. If it was twice the wingspan, would be twice as easy to fly. My gas turbine will be a larger one.
    Ducted fans seem to have improved since I was mildly involved with airplanes of the control line type back toward the middle of last century. They were still in the early stages of development for flying models back then.

    What sort of thrust does that produce? What is the impeller like?
    1601

    Keep eye on ball.
    Hashim Khan

    Comment


    • Originally posted by J Tiers View Post
      Ducted fans seem to have improved since I was mildly involved with airplanes of the control line type back toward the middle of last century. They were still in the early stages of development for flying models back then.

      What sort of thrust does that produce? What is the impeller like?
      I never played with them back in the dark ages, but this one is 12 bladed paired with a large brushless motor being fed by high quality, high discharge 6s lipo batteries. It sounds like a turbine flying past at 115 mph.
      Haven't measured the thrust, but think it's rated at 3.3 kg?
      It's 80mm in diameter. May pick up another battery, so I can get in three flights at the field, bring a charger, double it. That entire jet with ducted fan, retracts, servo's, everything but batteries and receiver is $340. Back in the dark ages, the brushless setup alone would of cost more.
      https://www.motionrc.com/collections...g-avanti-s-pnp
      Last edited by RB211; 03-10-2019, 12:22 AM.

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      • OK, thanks. I saw the innards in the accessories area of the site. Nice.

        Back in the dark ages, it was essentially an ICE and a propeller in a pipe, and was not super effective, although it worked.
        1601

        Keep eye on ball.
        Hashim Khan

        Comment


        • Fear: looks good....but what's it for? What are you running that can handle a 40HP motor?!

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          • Originally posted by Cenedd View Post
            Fear: looks good....but what's it for? What are you running that can handle a 40HP motor?!
            I figure it's easier to address all the insulation and wiring needs first rather than have to work around heavy equipment after it's been set in place. Everything I've got right now (welders mostly) run on single phase and roll around. The list of what's to come starts with a vertical mill, a decent size lathe and a horizontal bandsaw. After that maybe a surface grinder, ironworker, etc. I'll worry about that after I get going and know what I need next.

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            • Originally posted by Fear View Post
              I figure it's easier to address all the insulation and wiring needs first rather than have to work around heavy equipment after it's been set in place. Everything I've got right now (welders mostly) run on single phase and roll around. The list of what's to come starts with a vertical mill, a decent size lathe and a horizontal bandsaw. After that maybe a surface grinder, ironworker, etc. I'll worry about that after I get going and know what I need next.
              You should be good for anything up to 20 HP in one motor, using tht big idler. But it may soak up some power even on idle. Might have a couple HP of losses at max load, around a quarter to half HP of losses all the time.
              1601

              Keep eye on ball.
              Hashim Khan

              Comment


              • I'm coming from a place of complete cluelessness here....but trying to not be So would I be right that you're looking to set up a decent motor and then run more than one thing off it - sort of like a modern-day line shaft? Sounds like a good idea if the economies of scale work out in your favour.

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                • Originally posted by Cenedd View Post
                  I'm coming from a place of complete cluelessness here....but trying to not be So would I be right that you're looking to set up a decent motor and then run more than one thing off it - sort of like a modern-day line shaft? Sounds like a good idea if the economies of scale work out in your favour.
                  I'm putting together a rotary phase converter to convert single phase electricity coming into the shop into three phase electricity to run machinery off of. The motor starts spinning on the single phase by strategically placed capacitors and then starts generating the missing leg of current to run the three phase equipment.

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                  • Liberated a nice 120vdc motor and compact compact power supply/variable speed control from a broken (drive spline stripped) immersion blender. Not sure what I'm going to use it for but it's either going to power a small toolpost grinder/drill/spindle, or a yarn skein winder for the wife. We got a good solid 10 years out of it, and it blended up countless liters of tomato's for canning sauce so we definitely got out moneys worth from it.


                    Last edited by Dan Dubeau; 03-11-2019, 12:36 PM.

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                    • Ripped into the Doall a bit. Was happy to find it actually had lube in the gearbox.. didn't look too bad when I drained it. Also ripped out the air compressor.. piston type with conical bearings supporting both ends of crank. Dipstick didn't register oil, but thee was some almost new looking oil in there one I was able to tip it over to drain. Cute little thing. Looks to be in great shape despite totally clogged air intake. No plastic vanes and no bronze bushings to deal with.. glad for that.

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                      • Cooked steaks on the grill for the 1st time since I cut the holes in the burner plates. Cut 4 minutes off the grill time with significantly better results. Iā€™m stoked.
                        Finished assembling the mounts for the LED lamps on the engine guards. Now I gotta get them wired in.
                        Illigitimi non Carborundum šŸ˜Ž
                        9X49 Birmingham Mill, Reid Model 2C Grinder, 13x40 ENCO GH Lathe, 6X18 Craftsman lathe, Sherline CNC mill, Eastwood TIG200 AC/DC and lots of stuff from 30+ years in the trade and 15.5 in refinery unit operations. Now retired. El Paso, TX

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                        • Originally posted by Fear View Post
                          I'm putting together a rotary phase converter...
                          Ah, I see. Have heard of a rotary phase convertor but wasn't aware it involved a motor - or at least had a part a motor could be used for instead. Interesting project.

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                          • Originally posted by Tim The Grim View Post
                            Cooked steaks on the grill for the 1st time since I cut the holes in the burner plates. Cut 4 minutes off the grill time with significantly better results. I’m stoked.
                            Finished assembling the mounts for the LED lamps on the engine guards. Now I gotta get them wired in.
                            Holes in burner plates? Have a pic?
                            Andy

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                            • Post #3080 page 308
                              Illigitimi non Carborundum šŸ˜Ž
                              9X49 Birmingham Mill, Reid Model 2C Grinder, 13x40 ENCO GH Lathe, 6X18 Craftsman lathe, Sherline CNC mill, Eastwood TIG200 AC/DC and lots of stuff from 30+ years in the trade and 15.5 in refinery unit operations. Now retired. El Paso, TX

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                              • Started refurbishing this little gem. Wade 8a #407. Built circa 1940s, used by the US Navy. Thanks to Andy for his awesome, and informative, site! Tons of work to do, but it'll be a great machine when I'm finished.


                                On the hunt for ALL things Wade 8a Lathe. If you have ANY leads for parts, tooling, etc. Please send me a private message.

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