Scramjets goes hyper-freakin' sonic, SSD madness, build your own blazing fast SSD USB Drive, CNC Router, and what to do after you crash your quad.
- We know that the US Millitary-Industrial Complex has been working on Hypersonic flight for a while. (Hypersonic = Speeds above Mach5)
- Well, now we've got DARPA and the Military saying that we might have Hypersonic craft for the delivery of sensors, cargo, weapons and even people by 2023.
- We've had a few test flights of varying complexity and sucess, but none of then have really indicated that Hypersonic flight is ready for prime-time
The Nasa X-43A, currently the fastest aircraft on record, was able to hit 10,617MPH
- But it only hit that top speed for a few seconds
- And it required a carrier aircraft and a rocket booster to get up to the speed that it's scramjet engine would work.
Let's talk about the Scramjet!
- The Scramjet is an airbreathing engine
- This is important, because unlike a rocket, it doesn't have to carry it's own oxidizer. It only carries it's fuel and depends on the atmosphere to give it oxygen to burn that fuel.
- A scamjet has no moving parts... unlike an traditional turbine engine that you might find on a passenger aircraft
- In that traditional turbine engine, A set of blades compresses air at the front of the engine and pushes that high-pressure air through the chamber
- Fuel is added to the high-pressure air and ignited
- The air is now hot and even higher-pressure
- That air turns a series of turbines that provides power to the compressor blades at the front of the engine while also providing thrust out the back of the engine
- Normal turbine engines have difficulty working above speeds of Mach 2
In a scramjet, the engine is moving through the air at supersonic speeds, which means the air will move through the engine at supersonic speeds.
- You have a structure inside the scramjet that compresses that supersonic air, which will greatly increase it's temperature, then injects fuel.
- The fuel will burn, creating even hotter gasses that exit out the back, providing thrust.
This process is incredibly complicated because it:
- Requires that the engine is already moving at supersonic speeds
- Needs the proper shaping of the air coming into the engine at supersonic speeds.
- Needs to keep the fire lit in a supersonic windstorm
Kinston HyperX Savage
- This is the refresh of the Kingston KC300 SSD line that I like so much
- 560MB/s read 530MB/s write
- Comes with a USB 3.0 Enclosure
- We'll be using three of these drives in an upcoming upgrade episode
But hey... there's a problem!
- SATA Revision 3 is limited to 6GB/s -- which, once you consider encoding/unencoding, translated into about 600MB/s.
- So most high-end SATA 3 SSDs are right at the edge of the bus' capacity.
Kingston HyperX Predator
- This uses a M.2 card on a 4-Lane PCI-Express card
- 1400MB/s Read // 1000MB/s Write
- And we can get faster!
- 2-lan gets us 1000MB/s, 4-lane gets us 2000MB/s, Gen3 gets us 4000MB/s
Now... let's get cooking on our super-fast USB 3.0 Drive!
- We're looking for something in the 256GB range
- You could get an inexpensive USB 3.0 flash drive like the PNY Turbo 256 (~ $83)
- You'll probably see 100-150MB/s read // 20MB/s write
- You could get something ULTRA fast, like the Patriot 256GB Supersonic Rage 2 (~$160)
- You'll probably see 300-350MB/s read, 200-250MB/s write
- We're going to MAKE our own compact, durable, ultra-fast USB 3.0 storage device using an enclosure and a mSATA SSD. $15
- Sabrent USB 3.0 mSATA Enclosure
- Samsung 850 EVO mSATA 540MB/s // 520MB/s $100
- Kingston mS200 mSATA 540MB/s // 530MB/s $150
Typical USB 3.0 Flash drives will use MLC memory
- It's good for between 3,000-5,000 PE (Program/Erase) cycles
- SOME flash drives will use SLC (single Level Cell) and will be good for 100,000 writes This mSATA card from Kingston will do 100,000 P/E cycles before it starts to deteriorate
What's in Padre's Crash Box?
- 2 Complete sets of Extra Props
- Zip Ties
- 2 Spare Motors (one of each rotation)
- 2 ESCs (Cut and Soldered)
- Tool kit (inc Screwdriver, dikes, pliers)
- 2 Extra arms (one of each color)
- Can of compressed air
- Kill Power
- Set aside battery in a safe, burn-resistant area. Testing should be done with a fresh battery.
- Assess prop/structural damage
- Manually rotate motors, feel for binding // listen for abnormalities
- Blow out cans with compressed air. Look for debris.
- Check all electrical paths. (PDU to ESCs, ESCs to motors, ESCs to FC, FC to receiver)
- Power-up with props off: Test motor ESC/Motor response/rotation. -- Look for bent shafts.
- Props on: Hover test.
- Punch Out test
- Return to normal flight.
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