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| | | | The Tavern Kick off your shoes and sit back with your favorite beverage and enjoy talking about whatever you like. | Flying MBs Discussion at Motorized Bicycle Engine Kit Forum in the The Tavern forum. Originally Posted by hiker472
Yeah, I kinda figured as much considering the reliability of a two stroke motor in flight. ...  | | 
11-30-2008, 06:09 AM
|  | MODERATOR | | Join Date: Jan 2008 Location: Ashtabula county, Ohio
Posts: 4,723
| | Re: Flying MBs Quote:
Originally Posted by hiker472 Yeah, I kinda figured as much considering the reliability of a two stroke motor in flight. Also it would require too many connecting pulleys or gears to combine it all which would add up to being too impractable and too complex, not to mention all that added weight. Nevertheless, I bet someone is gonna try. | I have hours and hours of fying with two stroke engines...the problem of reliability is with our engines, not two strokes in general.
You get a more efficient set up with a prop for each engine.
There were several popular early U/L's that ran twins usually 10-12 hp each.
Some even used a Partner chain saws, and the belt drive was a converted/glorified chainsaw bar! Most ran loud, small direct drive props.
__________________ If it ain't broke, and you mess with it long enough, it will be. | 
11-30-2008, 06:12 AM
|  | MODERATOR | | Join Date: Jan 2008 Location: Ashtabula county, Ohio
Posts: 4,723
| | Re: Flying MBs lympne light plane competition - Google Search
Some of those planes flew on VERY little power.
__________________ If it ain't broke, and you mess with it long enough, it will be. | 
12-04-2008, 11:39 AM
|  | Master Motorized Bicycle Builder | | Join Date: Aug 2008 Location: nh
Posts: 193
| | Re: Flying MBs | 
12-04-2008, 12:23 PM
|  | Master Motorized Bicycle Builder | | Join Date: May 2008 Location: CT, U.S.
Posts: 972
| | Re: Flying MBs Went to the Cove park yesterday. It is an inlet off the CT River just south of Hartford. All the boats and leaves are gone. I watched the seagulls for an hour. Wow, aerobatics in a good breeze with the flick of wing tips. One seemed to be chasing a bug in midair. Both deserved to win that mortal combat, but I certainly could not see who did. Truly poetry in motion.
Reminded me of the book Johnathon Livingston Seagull; "For most gulls, it is not flying that matters, but eating. For this gull, though, it was not eating that mattered, but flight." Great book.
I sat there planing future flight paths, take offs and landings of a yet to be built marine gyro plane. (and how to disengage safety harness upside down and under water, lol)
This insane moment was brought to you by the EXXON corporation and no other apparent reason...
__________________
Ilikeabikea; He'll build a motorbike with a wing
It will be a magnificent thing
Underneath is a boat
So that it will float
And riches to Dan it will bring....... | 
12-04-2008, 06:16 PM
|  | Master Motorized Bicycle Builder | | Join Date: Jul 2008 Location: Wayne National Forest
Posts: 339
| | Re: Flying MBs Speaking of a plane which flew under very little power, the Leeon Davis DA-11.
It uses a 2 cyl 4cycle Briggs & Stratton Vanguard 18 hp lawnmower engine direct driving the prop. On the cowling there is this script: "MOWER POWER TO THE PEOPLE"
It could cruise at 125 mph and red line at 155 mph.
Last edited by eDJ : 12-04-2008 at 11:12 PM.
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12-04-2008, 06:31 PM
|  | Master Motorized Bicycle Builder | | Join Date: May 2008 Location: CT, U.S.
Posts: 972
| | Re: Flying MBs "MOWER POWER TO THE PEOPLE" !!!!!!  Love it!!
Thanks eDj, 2 funny
__________________
Ilikeabikea; He'll build a motorbike with a wing
It will be a magnificent thing
Underneath is a boat
So that it will float
And riches to Dan it will bring....... | 
12-04-2008, 08:39 PM
|  | Master Motorized Bicycle Builder | | Join Date: Nov 2008 Location: Ontonagon County,Upper Michigan
Posts: 226
| | Re: Flying MBs Quote:
Originally Posted by Dan This insane moment was brought to you by the EXXON corporation and no other apparent reason... | Just remember not to run the boat on the rocks when asking for a rum & coke on the rocks......  | 
12-04-2008, 08:49 PM
|  | Master Motorized Bicycle Builder | | Join Date: Nov 2008 Location: Ontonagon County,Upper Michigan
Posts: 226
| | Re: Flying MBs I found an interesting glider at Basic Ultralight Glider
They offer free plans to download also.
Thinking about a flying MB and also learning that it may take 25mph for flight, I wonder if, after viewing this particular glider, if the HT could be used, but not with a prop.
I think of a recumbent bike with an HT, which moves it down the field. Since this glider only needs a light thermal for lift to achieve flight, wouldn't it be reasonable to say that if you were cruising down the road, into a headwind, liftoff could be achieved?
This way, we wouldn't need a prop for it, but rely on the MB to motor down the road into a headwind to catch a thermal for liftoff. | 
12-04-2008, 08:55 PM
|  | Master Motorized Bicycle Builder | | Join Date: Nov 2008 Location: Ontonagon County,Upper Michigan
Posts: 226
| | Re: Flying MBs Quote:
Originally Posted by mechanickid | I like that old school bobber they got on that site! | 
12-04-2008, 09:11 PM
|  | Master Motorized Bicycle Builder | | Join Date: Nov 2008 Location: Ontonagon County,Upper Michigan
Posts: 226
| | Re: Flying MBs Quote:
Originally Posted by Dan I sat there planing future flight paths, take offs and landings of a yet to be built marine gyro plane. (and how to disengage safety harness upside down and under water, lol) | You could get a gas charged inflatable raft or even a smaller floatation device that can be built around you seat or even the base of the plane. Get that aircraft spruce catalog (free) -they got all kinds of stuff in there for emergency water crashes.
You could even go so far as a small emergency oxygen tank that is strapped to your jacket and when you need it, just put the face mask on. I think a floatation device of some sort or even inflatable floats would be an added bonus to your plane. | | Thread Tools | | | | Display Modes | Linear Mode |
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