POTD- PROJECT OF THE DAY: What Did You Make In Your Shop Today?

[woodchucker]

Quicker to propel your plane with a 2-1 hp to weight combo and yank the plane up in the air.

Here’s a couple of mine.

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actually until Turbine Jets came along, the fastest planes were gliders, and in dynamic soaring, they are pushing 600mph. I don't know what the current record is, but this one is 548mph

 

[verbotenwhisky]

I used to . I was competitive in F3B, and the USA's Thermal Duration.

I never flew competition but I have built and flown a number of different sail planes. I started flying combat and acrobatic U-Control in the 1970's, K&B .35 and Fox .35 on Carl Goldberg Voodoos and Ring Masters then in 1979 I got a Sig Cadet with a Fox .36 and a 3 Channel Futaba and learned to fly RC. I have owned many RC airplanes since but the planes I enjoyed flying the most were Sail Planes launched with a high start. The Spirit 101 I have has rudder, elevator, ailerons, Flaps and spoilers, the ailerons and flaps are setup in the radio with a mixer allowing ailerons to both go up with flaps down so it can be set down in the box.

Sorry didn't mean to get off topic....

Quicker to propel your plane with a 2-1 hp to weight combo and yank the plane up in the air.

 

[Red96]

Couple little projects completed yesterday that have been waiting.

Finally got an arbor made for a slitting saw. Used 1144 and got a really nice fit between the cap/saw/arbor to help minimize runout. Learned what I will do differently next time.


And made this work-holding mandrel for turning the rod journals on a 1/8 scale V8 crankshaft. Main journals (concentric) will be turned first without the mandrel. Mandrel has the 0.800 bore a quarter of an inch off center. By clocking the blank on 90 degree intervals, should be able to turn each of the respective rod journals, resulting in a 1/2" stroke. This is part of a small V8 engine block model I've been working on as a sort of fidget-toy to sit on a desk or whatever. You'll be able to turn the crankshaft by the flywheel and see the rods and pistons going through their cycle. No valve train or heads - just a block with a crankshaft, 8 brass rods, and 8 pistons. Should be a neat little conversation piece. I am considering making the block partially cutaway too, to better view the various parts movements.

The mandrel:



Rods & block (lots to do yet on the block)