Dec 18th 2014
Know How... 123
F1 History, Quiet Fans, First Quad Flight, & a Rocket Bike!
There once was an F1 car with 6 wheels, how to build a quiet PC, thin client with a Chrome Box, first flight with our quadcopter build, hydrogen peroxide rocket bike, and more!
- In the 1970's, car designer "Derek Gardner", with support from "Sir Jackie Stewart" mulled the idea of building an F1 car with 6 wheels.
- The car would have regular-sized rear-wheels, and two sets of smaller, 10" tires at the front.
- The car was called the "P34" and it made it's debut in 1976.
- IN THEORY, the car could have been great:
- 6 tires, even if 4 of them are smaller than normal F1 tires, would give the car more contact with the ground, which could be GREAT for cornering and braking.
- Smaller wheels in front are also far more aerodynamically compatible with the countours of the car. It did ok!
- 10 podium finishes in 1976.
- Front wheels spun 1.6 times faster than rear wheels.... so they wore out more quickly.
- The faster wheel spin also wore out the brakes more quickly.
- And it was crazy unreliable (8 retirements with those 10 wins)
There were other teams that tried the concept:
- Ferrari tried to make a "Dually" racer, with four wheels on a single drive axel.
- McLaren tried four smaller wheels as the thrust wheels.
"Getting a norco Rpc-430 4u case and installing i3-4130 on a micro atx motherboard and 6 hard drives. The case has 2 80mm fans and I was wondering what would be recommended for an efficient fan but as quiet as possible?"
A few Things to remember about fans:
- Slower = Quieter (unless you bought a REALLY bad fan)
- Bigger blades can turn more slowly to deliver the same amount of air as a small fan turning quickly
- Ball bearing fans will last longer than sleve fans. (Though they can be really hard to find.)
Was just watching BYB and they did a review of the Acer Chrome box. Is it bad that my first thought is that would make a great thin client. ?
"Padre, on today's KH you said the show notes would include an updated parts list for 230 and 250. What about the 450? I like to build a 450 to add my GoPro for video. The 450 on the show looked clean and simple with the GoPro.?"
Padre's "X-Alien" 450 Class Quadcopter:
- Frame: X-Mode Alien Quadcopter Frame 16.99
- Motors: HT-450 2212-13T : 980KV ($18 x 4) 72
- Electronic Speed Controllers: F-30 Fire Red Series SimonK-(RapidESC) ($10 x 4) 40
- Flight Controller: Flip MWC 1.5 15
- Power Distribution: Boad 2oz Coppter 1.99
- Total: 145.98
This build needs a radio, battery, charger and props.
Here are the stats:
- 333kh/h or 207mph in 4.8 seconds
- Uses a hydrogen peroxide rocket
- Has three thrusters from the combustion chamber
- Provides 4.5kN of thrust or 560 Horsepower
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