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    Mercury Sable RC steering help

    hey, i need some help with a project i am working on. what i am trying to do is take a full size car and turn it into a RC car. however, inorder to keep the car street legal, i need to keep all the controls operable by a person. i am using only off the shelf parts and servos that you can...
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    Two stroke engines

    ever seen a bucket of oil burn? i would sugest a fin system simmilar to that used to cool engines with out raidiators. your 2-stroke probably has this on the cylender head. or if you do want to use the above idea, use a nonflamable substance such as water. one more thing. the people who...
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    Theoretical Max of an IC Engine

    " If you put a tiny amount of high-energy fuel (like gasoline) in a small, enclosed space and ignite it, an incredible amount of energy is released in the form of expanding gas. "-http://auto.howstuffworks.com/engine3.htm" ^ well according to this| site i am right...
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    Theoretical Max of an IC Engine

    not entirely true, because if as you say the pistion creates a vaccum, then there would be nothing to push the pistion on downward stroke, thus no running engine. the way it works is this, the Gas/air mixture is ignited. im no expert in chemisty but what i understand is that when you turn a...
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    What type of fan generally yiels the fastest output velocity?

    im just curious, because some of your reasearch might help me in a model Ufo i am building, that is and has been grounded untill i get more money to by 4 extra ducted fans to supply the rest of the needed lift
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    What type of fan generally yiels the fastest output velocity?

    but why do you need such high rates? what would they be be used for.
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    Theoretical Max of an IC Engine

    assuming the engine in quiestion is a four stroke it seems to me that the only limit on the max RPM of an IC engine would be at the point where the time it takes a piston to depress, and return to it's origional position (i will call that C in my mathmatical equation) is equal to the time it...
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    Making a tiny hovercraft

    I found found this image in another fourm on this site, http://www.cincinnatifan.com/PlugFan.html" [Broken] if you spin the fan assembely in the right direction, it will "scoop" air into the center of the fan, and create a high pressure area there. if a housing can be built that will...
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    What type of fan generally yiels the fastest output velocity?

    just out of curiosity, what are you trying to acomplish with building this device? also the transition from the larger tube to the smaller tube would eithere have to be gradual, and semi-smooth, or it would have to be very very smooth, and then could be more abrupt otherwise the air flow...
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    IC engines

    I, in my 12 years of owning many large diesel powered boats/ yachts, I have never in my life encountered a marine diesel started by compressed air, from 15' boats all the way up to a 52' twin turbo diesel powered yacht, have ever heard of a boat started by compressed air, or even have a air...
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    IC engines

    i just did a little reasearch and this is what i came up with http://www.greencarcongress.com/2006/01/startup_introdu.html
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    IC engines

    here's an idea, devise a system to capture the heat generated by the electric drive moter and then channel that heat (with a liquid that holds heat well) to the diesel engine to keep it warm. Just a thought
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    IC engines

    i would have to say that the most advanced IC engine would have to be one that has been converted to run on bio diesel or on keroscene. just out of curiosity, has anyone seen or heard of a desile engin that incorpeates the technology that disables 1 or 2 pistions so that they are not firing...
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    Thrust dihedral

    here is the chart, for real this time
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    Thrust dihedral

    all it contains is a chart that i created in excel, i will just create a pdf file like you suggested. zac ps on an unrelated idea, is there anyway to use a gyro to hold altitude pitch, yaw and roll, without any lifting surfaces. eg. wings
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    Thrust dihedral

    Formula can anyone tell me what all of this means. the formula that i used to find this was A=the angle the fan is set at E=the number of ducted fans R=the percent of throttle remainin to accend W=the weight of model, excluding the fans A/90 ->set answer to equal->B B*100 ->set answer to...
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    Thrust dihedral

    i was aware of your imput in the rc forums website, as it was i who posted the origional idea of the vectored thrust on that website. i was hoping to get a couple of people with a high level degree in this stuff to comment on my idea (not to say that you dont have degree, im sure you do), but...
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    Thrust dihedral

    just for informational purpuses, how much would the gyros cost me, can i hook up 8 electric engins to them, how much do they weigh, and how big are they. zac
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    Thrust dihedral

    its one twenty where you are but it is 3:37 where i am (EMT)
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    Thrust dihedral

    i was thinking about for a propulsion method, i would simply adjust the C of G forward or aft, left or right. this would create an imbalance causing the leading edge to dip down and the fans on the leading edge to take up all of the vertical lift. then the trailing edge fans will provide the...
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    Thrust dihedral

    keep in mind that i am on a very tight budget, and i am still in high school, so i dont have the time to build proof of concepts, so i never know it they will work or not unless somone has already built one
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    Thrust dihedral

    i see what your saying and i have thought about that, and i have drawn a couple of plans to address that issue but none of them are very plausable. one calls for a servo to pull a weight along a track similar to the ones used in those game things where you try to grab the stuffed animal with a...
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    Thrust dihedral

    what do you mean by classes in controls? do you mean classes in how to fly an rc plane, because if you meant that then here's your answer, yes i do know how to fly a model airplane, actualy i hacve about 6 of them up above my garage, all of which i can fly with well engout to not crash them...
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    Thrust dihedral

    Ok, here is an idea I have been playing around with for about 2 months now: i am design a RC aircraft that is lifted verticaly into the air by 4 ducted fans. however an issue with stability came up, so instead of trying to rely on a low center of gravity alone for the stability, I came up with...
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