Solar Powered Bike / Trike
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For a college project you do not even have to put a real voice repeater in the plane to demonstrate the concept. In the RC world there are lots of plans to build electric aircraft. To save money you can use balsa wood and stretch film to make the plane strong and very light in weight. Search the net and you can find plans to build a solar powered RC plane. There are several good forums for such things. Two that come to mind are RC Groups and Watt Flyer. Both have a wealth of information and you can get help directly from the members. There you will find pros in aviation, defense, and military defense contractors who are more than happy to share their knowledge.
To demonstrate the communications simple buy one of the telemetry units made for model RC aircraft or camera as they are cheap. Everything you need can be bought except for the charge controller if you decide to use a LiPo battery to assist accent. Once at altitude cut motor power and glide until telemetry tells you to switch back on the motor to ascend. They even make props just for such idea that fold when not running to reduce drag. Or you can even do duct fans in a wing type aircraft.
Will it make you rich? Not likely but it can land you a great job with a civil or defense contractor which will make you rich later.
Good Luck
DereckMSEE, PEComment
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Dallas itself without counting Fort Worth and Arlington only has an area about 1000 sqklm.
And as I said a cell has a range of about 5k about same as you say. And I was not suggesting one tower only. and everyman and his pet spider knows the 3 cell frequencies, So you aired nothing new. And the whole post totally you wrote was nit picking on an unimportant part,it wasn't really relevant for the discussion if Dallas was 2or 2000 sqklm.
You, as always missed the important part . you originally said you want some new fangled wing to supply communications for military and emergency use . But why ? when there is already sat phones for that and of course can be used for other purposes And they cover as I said most of the planet,. And as you must be aware the military has its own excellent communications system in place and so do the emergency services.. Who needs a city with 5647 flying wings parked in the sky above it? And what deleterious effects are going to happen to communication from ground to satellites and return when the signal bounces off these sometimes powered? wings.??? what research have you done into that aspect??And what were the results of that testing?Comment
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John you are really boring. I am done with you on this post. You missed the point. It is a college student working on his senior project on a budget. So get lost again.MSEE, PEComment
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HEY!!! Whats with the thread hijacking??? This is a thread on a solar trike project. Go make your own thread guys and leave us to talking about solar bike projects here. Please!
Thanks
makeComment
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Sdelgad8 sorry that I contributed to the off topic subject that Sunking was on.Why he decided you should be doing what I consider a totally
insane project instead of the one you wish to attempt. Some of his comments even in his posts about yourcurrent project are bizzare.Mabe he was
reading some posts on another forum but putting the replys on your thread. One can only speculate.??
SUNKING Post #2 .. At the end of the day what you will discover it is much cheaper to buy power than make it. ??? What had this to do with your
project? You had not said anything about the cost of the needed electricity,.?
SUNKING Post #4 John based on an earkier post the solar will be stationary using a 360 watt panel. REALLY??? Where did he get that tidbit of info
from?? You cearly stated it was a solar powered bike/tryke which is a mobile device.It certainly must have been written in an "earkier" post
elsewhere.??
SUNKING Post #12 Now that I beat you down let me offer a concept that can work and has application in Military and Civil communications. A flying
wing pressurized with helium or hydrogen with graphite for the structure support that can carry a communications radio package to high altitude
and orbit a strategic area like a city indefinitely. It is possible with tech we have today. Military would love such a product or Civil search
and rescue operations where there is not cell phone over 70% of the USA land mass.
Why is the attempt to get you off your present project and start on some concept of communications that has already been done very successfully.
To say the military and Civil and rescue people would love such a product is nuts. But he didnt give up as you can see in post #14
SUNKING Post #14Well FWIW the military already has a aircraft very similar to it, it just uses fuel and a turbine engine. It is a big glider.
They take it high altitude, cut the engine and let if glide a few hours, restart and climb again. repeat until fuel is exhausted.
NASA built such a craft but it crashed in the Pacific. But I have a slightly different idea.
Build a flying wing with with carbon fiber framing. Stretch thin film across the top of the wing and seal it to the lower skin. Use hydrogen to
pressurize the wing and lighten the aircraft. For deployment use a weather balloon to get to high altitude initially and quickly, then orbit the
tactical. When the sun rises turn on the electric motor to climb and recharge the battery, then glide at night and the radio equipment runs off
battery. It can be done with the tech we have now.
Why would civil search and rescue need or want a device like that,, Asimple baloon like a weather baloon can take communications equipment up
above the surrounding terrain ,.In a much simpler and cheaper and more reliable way.
SUNKING Post #22You are not going to find it as batteries and motors are as efficient as they can possible be. LiPo batteries efficiency is 99%
and synchronize motors are 95 to 98% efficient. There is nothing more to gain. With 12 volt motors are are extremely limited. .. YES those 12 v
motors are extremely limited?? in whatway ? compared to what? And who said anything about using 12v motors?? You said you were going to use a 36v
motor.? The remainder of that post is just SUNKINGS version of english.
SUNKING Post #23
Quote Originally Posted by Sunny Solar View Post
For civilian emergency use in calamities 300ft is more than adequate.This was a previous post of mine.
Well John then all I can say is you do not know much about low power UHF and Microwave radio frequencies if that is what you believe. If that
were true no city would need more than one cell tower. In every city of the USa every downtown high rise building has it own cell radio installed
in it just to serve that building.
How did he come up with reading into my post that a city would only need one cell tower.There was never any mention by me that this one baloon
and its equipment was to serve the needs of the inhabitants cell phone usage.??? It is only a device to use by emergency personal. with a very
limited number of users.
I fully understand what Ihave posted is not helping you with your project but Ithought it necessary to get you to see the folly of going off on a
tangent and following SUNKINGS dream "FLYING WING".
The main obstacle with your project is getting enough solar panel area on the bike/tryke.Comment
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