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Engine and Propeller

Stuka Stunt Main Forum · 24 of 24 known posts recovered

Gary Weaver · Jun 25, 2004 09:54 AM

Engine and Propeller#0 source
I made a homemade propeller to put on a small 2 cycle gas engine. I mounted the engine to my bicycle to see if it would be powerful enough to pull me. No way, but it did produce enough power to make me go faster if I peddle. Normally I can peddle my bike about 30 MPH on a flat level street and now I can pebble it 50 MPH with the engine and propeller running.

Next attached a 20 ft long 2x6 board to the top of a post so it would spin like a helicoper blade. The post was 4 ft. deep in the ground. I mounted the 2 cycle gas engine with the propeller to one end of the 2x6 board. I used a brick as a counter balance on the other end of the board. I started the engine and let it go and it picked up speed faster and faster. After a few seconds the engine was spinning so fast it was a blure. It looked like a helicopter trying to take off in the back yard. WOW, there is no way to get it stopped now. "GET BACK." It ran for about 20 minutes, then ran out of gas.

Next I built an airplane from some scrap 1/4" plywood that I had in the garage. I mounted the engine to the airplane and got it balanced. I put a trim tab on one wing to count the torque of the prop. The airplane sets on a dolly so the airplane can take off without wheels. I took the airplane out to the edge of town on an old section of road with a dead end. I figured I would have to experement a few times to try and get the trim tab and tail adjusted correctly to make the airplane fly straight and level without crashing. I started the engine and let it go. It went down the highway picking up speed but not lifting off. Finally after about 200' it lifted off and left the wheels on the road. It climbed at a very slow rate of about 1 foot per 100 feet. Not bad for the first try. I watched the airplane as it flew and figured it would turn to the left or right in a minute and crash but it didn't. The airplane flew out of sight and was never seen again.

peabody · Jun 25, 2004 10:06 AM

RE: Engine and Propeller#1 source
He said, in response to Dave Brown's MA column.

Thanks for all that you do for model aviation, Gary!

See Ya

Peabody

captcurt · Jun 25, 2004 11:34 AM

RE: Engine and Propeller#2 source
>
>Normally I can peddle my bike about 30 MPH on a flat level
>street and now I can pebble it 50 MPH with the engine and
>propeller running.
>
>


Yeah, right..maybe down el capitan.

Bob Reeves · Jun 25, 2004 12:11 PM

RE: Engine and Propeller#3 source
If the airplane part is really true, somehow it wouldn't surprise me.

Larry Cunningham · Jun 25, 2004 12:26 PM

RE: Engine and Propeller#4 source
Ah, but did the fuel have 15% water?

[photo not recovered: 3e69bb3870f12ad5.jpg]

"The real character of a man is found out by his amusements." -Joshua Reynolds

Randy Ryan · Jun 25, 2004 12:34 PM

RE: Engine and Propeller#5 source
Well Larry,

He could have used those tablets to convert water to gas, and added those special 1950's carb jets to get 120 MPG. Either way I think is bogus because anyone knows you have to use aircraft grade birch plywood or it won't fly, standard fir will only float, it will not fly.

Randy Ryan
AMA 8500
SAM 36
I fly 'em all and love it!

faif2d · Jun 25, 2004 03:27 PM

RE: Engine and Propeller#6 source
Unless you are building a Woodstock glider, the plans specify marine grade fur plywood for a lot of the structure. The sticks are also fur. Kind of a neat design but the payload is 220 lbs. Does anyone want to buy some plans I am now at 250!

I used to like painting with dope but now I can't remember why. Steve Fauble

mugs914 · Jun 25, 2004 06:03 PM

RE: Engine and Propeller#7 source
Sounds like the post in the ground with the 2 x 6 spinning on top would be a pretty good way to go at that pumpkin flinging contest they hold every year in, well, wherever... Just replace the brick with a punkin, build up the revs and cut 'er loose...

Uh, don't try this at home kids. We're trained professionals...

God bless!

Mike

Minnesotamodeler · Jun 25, 2004 06:58 PM

RE: Engine and Propeller#8 source
Hey Gary,
You got pics?
--RAy

Steve Helmick · Jun 25, 2004 08:29 PM

RE: Engine and Propeller#9 source
One of these days, Gary will have a good idea, you just wait. Steve (NOT holding my breath)

ty marcucci · Jun 26, 2004 12:38 AM

RE: Engine and Propeller#10 source
This could be why you are never told about local contests.

Iskandar Taib · Jun 26, 2004 02:25 AM

RE: Engine and Propeller#11 source
http://media.armadilloaerospace.com/2004_06_15/perfectBoostedHop.mpg

The going up part, I expected, what happened after that, I didn't expect at all.

Flyin Andy · Jun 26, 2004 03:10 AM

RE: Engine and Propeller#12 source
LMAO!

I nominate this plane for the David Letterman segment; "Is this Something?"

Max1998 · Jun 26, 2004 10:45 PM

RE: Engine and Propeller#13 source
I just have to ask why would you have 20 minutes of gas in the motor when you are spinning it on a pole with a brick on the other end? Same goes for the free flight deal?

Dennis Pedersen

Randy Ryan · Jun 28, 2004 07:45 PM

RE: Engine and Propeller#17 source
LAST EDITED ON Jun-28-04 AT 07:45 PM (CDT)
 

Speaking of the insurance issue, Crash is right on, crap like this (if it were to really happen) would reflect on us all whether the flyer was AMA or not.

Randy Ryan
AMA 8500
SAM 36
I fly 'em all and love it!

The Layster · Jun 27, 2004 12:18 AM

RE: Engine and Propeller#14 source
Were you at WOODSTOCK?

Tom Lay

ama353 · Jun 27, 2004 12:28 AM

RE: Engine and Propeller#15 source
Say hey, what wuz you drinkin' and smokin' jus 'fore all this? And how much do the plans auctions start at?

Dennis

Crash2much · Jun 28, 2004 06:15 PM

RE: Engine and Propeller#16 source
LAST EDITED ON Jun-28-04 AT 11:06 PM (CDT)
 
Did you ever stop to think about where this might come down or if there might have been people there? Ever wonder why insurance rates are such as they are? Have you considered getting some "help"? Proof once more why comdoms or castration can be a good idea.......

Bill

I build more planes than I fly, collect more engines than I'll ever use. That about says it, right?

Charlie Chan · Jun 28, 2004 08:09 PM

RE: Engine and Propeller#18 source
Ha HA HA HA HA HA HA HA HA HA HA HA HA HA HA HA HA HA AH HA HA HA HA HA HA ------------------------------------------------------
HA-------------------------------------------HA ------------------------ ( Tears )--- more laughter more tears, Where,s the net.

Charlie Pate

dirtydan · Jun 28, 2004 10:59 PM

RE: Engine and Propeller#19 source
I wish to remind everyone that Gary has a neighbor. According to Gary this woman is a serious problem when it comes to simply getting along with the neighbors.

I'm thinking of either sending this poor woman a real powerful hand gun, or at least more bullets for the one she surely bought years ago.

Dan

ed n · Jun 29, 2004 12:35 AM

RE: Engine and Propeller#20 source
>Normally I can peddle my bike...

I can peddle my bike too. It's a Bianchi Brava
road bike. Anyone interested in buying it?

OH WAIT! I think he meant PEDAL...

Jim P · Jun 29, 2004 09:14 AM

RE: Engine and Propeller#21 source
>Speaking of the insurance issue

And speaking even more of the insurance issue, how's your life insurance? A guy say age 40 with two kids, a non working spouse and the normal bills, making $50K a year will need around $1 million in immediate death benefits to maintain his families life style after he has gone to his reward in a most spectacular manner.

PS. Don't tell the insurance company about your bike.

Harleyman · Jun 29, 2004 12:03 PM

RE: Engine and Propeller#22 source
Future “Darwin Award” winner in the works here.

Chris

peabody · Jul 01, 2004 07:15 AM

RE: Engine and Propeller#23 source
Gary...was this before or after you stabbed the guy with the ball point pen?


See Ya

Peabody