By: Matt Gentile

2005By: Matt Gentile

2005

CMSU=Crash survivable memory units

CVR=Cockpit Voice Recorder

FDR=Flight Data Recorder

FDAU=Flight Data Acquisition Unit

• 3 Different microphones, 4 if necessary

• Recorded using magnetic tape

• Data is sent to CVR

•Readings are digitized

•Stored in the FDR

•Time

•Pressure Altitude

•Airspeed

•Vertical Acceleration

•Magnetic Heading

•Rudder Pedal Positioning

•Control Wheel Positioning

•Horizontal Stabilizer

•Fuel Flow

•There are sensors that are wired from areas on the plane to the FDAU

•FDAU is wired to the FDR.

•When a switch is turned on or off, that operation is recorded by the FDR.

Solid State is better than magnetic tape (pictured right) because of many reasons.

•Records longer

•Up to 2 hours

•Flows faster

•Easier to read

•No moving parts, so less malfunctions Magnetic Tape Recorder

Crash Impact- Researchers shoot the CSMU down an air cannon to create an impact of 3,400 Gs

Pin DropResearchers drop a 500-pound weight with a 0.25-inch steel pin coming from the bottom onto the box

Static crushFor five minutes, researchers apply 5,000 pounds of crush force to each of the unit's six major axis points.

Fire TestResearchers place the unit into a propane-source fireball, cooking it using three burners

Pressurized Deep Sea Submersion

The CSMU is placed into a pressurized tank of salt water for 24 hours.

Deep Sea Submersion The CSMU must survive in a salt water tank for 30 days.

Fluid ImmersionDifferent CSMU components are placed into a variety of aviation fluids, including jet fuel, lubricants and fire-extinguisher chemicals.

•Extreme Heat

•Violent Crashes

•Fire

•Tons of pressure

•Has 3 layers of material

Aluminum Housing

•Thin layer of aluminum

•Around mem. cards

•Crush Zone

•Bright Orange

•Bright Stripes

•Really not a “Black” Box

•May be charred in post accident fires

•Microphones pick sound up

•Sent to FDAU

•Then transferred and stored permanently in CMSU

•CMSU has underwater locator beam.

•Sends out a pulse every second for 30 years

My name is Matt Gentile and my goal in life is to find out who Patrick Bohannon likes. She has brown hair, is not in Mr. C’s or Mrs. St Clair’s lunch class. She doesn’t ride my bus, and she is on the right side of Mr. C’s board of pictures. It’s not Mary Margaret and she’s not Viveca. The choices are down to Alexis and Jasmine. Oh my gosh, I found out who it is and it’s not Jasmine or Alexis! Sorry, I can’t tell. I was tricked! Man!

• I play baseball at southwest forsyth little league and Kemp Wyatt is the best player on our team. He has hit 25 home runs, drove in 50 RBI's, and is batting .685 now with 25 walks. All of this has happened in just 10 games. This is good, but not nearly as good as me. I have doubled all his stats, and have missed half of the games while shooting my commercial.

ME!!!

http://travel.howstuffworks.com/black-box.htm

http://images.google.com/images?hl=en&safe=active&q=underwater+locator+beam