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Let me know A Cockpit Voice Recorder (CVR) is a critical piece of equipment in aircraft designed to record audio from the cockpit during a flight. Its main purpose is to capture conversations between the flight crew, sounds from the cockpit (such as alarms and engine noise), and radio communications. Here's how it works: ### 1. **Microphones** - The CVR typically uses multiple microphones to capture audio: - **Headset microphones** for each pilot. - **Overhead area microphone** to record general cockpit sounds, such as switches being operated, alarms, and any conversations that are not picked up by the headsets. ### 2. **Recording** - The CVR continuously records the last **two hours** of cockpit audio (in modern systems). Older models recorded up to **30 minutes**. - The device uses a loop system, where new recordings overwrite the oldest data. This ensures that the most recent conversations are always available, particularly in the event of an accident or incident. ### 3. **Data Storage** - Modern CVRs store data digitally on **solid-state memory** for durability and reliability. - Older CVRs used **magnetic tape**, similar to how audio cassettes work, but this has largely been phased out. ### 4. **Crash Survivability** - The CVR is housed in a highly durable, fireproof, and impact-resistant case designed to withstand extreme conditions, including: - **High impact** (up to 3,400 Gs). - **Fire** (up to 1,100°C for 60 minutes). - **Deep-sea submersion** (up to 6,000 meters underwater). - It is usually located in the tail of the aircraft, as this is often the part least affected by a crash. ### 5. **Recovery and Analysis** - After an accident, the CVR is retrieved and sent to specialists for analysis. - The recorded data is used to understand what happened in the moments leading up to the incident, particularly by reviewing the crew’s conversations, alarm sounds, and other cockpit noises. - Investigators use the information to identify human or technical failures and improve aviation safety. ### 6. **CVR vs. FDR** - The CVR is often paired with a **Flight Data Recorder (FDR)**, which records technical flight data like altitude, speed, and control inputs. - Together, they provide a comprehensive picture of the flight during an accident investigation. CVRs play a vital role in improving aviation safety by helping investigators reconstruct events and prevent similar incidents in the future.

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Monahan Plaza

Cecil Island

I kept getting stuck on questions with this - this video helped clear it up. Thank you!

what a explanation, it got so cleared now!!!!

Taylor Jennifer Thompson Steven Hall Dorothy

Aerospace engineer in first year of grad school and I was so perplexed by this simple low wing vs high wing for no reason, and this explained it perfectly for me.

Very amazing explanation !!

superb

An Increase in weight requires an increase of lift but that produces an increase of induced drag which makes the excess power available to be less and therefore a decrease of ROC which in turn will make VY to be higher in both Jet and naturally-aspirated engines.

Davis Ronald Johnson Brian Taylor Michelle

Coherent light isn't just one frequency, it's also in-phase. It's the phase coherence that makes it so useful for interferometry.

Thank you for this amazing lecture all doubt clear now

Excellent

Thiss is be Wholly INCORRECT Thé Field coils are the one that spinn Not the othér Way 😩😩😰😟😰😩😩😩😨😧😧😧

this british accent is non understantable , this horrible !!

❤

Excellently explained. Thanks

Damn, extremely helpful videos. Thank you for such detailed yet concise presentations.

This explanation is great!!

I listen to the VASaviation channel and the controllers seem to be landing aircraft way too tightly at the busiest airports. Multiple times I've heard controllers clear a plane to takeoff when the traffic is on a 2-mile final. This is crazy!

Never heard this much detailed info. Appreciate you taking the time to research this so thoroughly.

2:20 Is it really this big? 🤣🤣 Its should be 2x2x2 inch.

Nicely explained 😀

So it's basically magic

Absolutely great explanation!

Heartfelt Appreciation for making this available to all.

☕️🍰

Jp Gp

F 4:35 Great explanation, tks!

Thanks for these informative videos. A very Hidden Underrated Channel!

Im always in Retard Mode

Thank you!

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Thanks for the content ❤

Thanks you for the time taken to create this video. Well explained :)❤

Excellent presentations great thanks

This brings back memories, I used to teach inertial navigation and the way we explained it was it was the final correction after you had corrected for everything else, it basically reverse any residual errors on the 42 min cycle so that the errors didn’t compound too fast.

Wonderful explanation!! Everything is very well simplified and made easy to understand. Thanks

Great lesson. You have my gratitude. My name is Zakir and I approve that this lesson is very helpful. Future B787 pilot

bring back the nice lady

I have Gyroids.

NICE VIDEO

thanks for uploading

Do Airbus pilots make more money or Boeing?

The only video that makes sense to me.