Question:
what is the purpose aircraft engine firewall?
shizel
2011-03-08 06:34:36 UTC
please could you shed some light on how it works we have tried the internet can not find any thing thanks
Seven answers:
2011-03-08 06:40:01 UTC
similar to the firewall on a car or truck. It's designed to reduce the chance of an engine fire getting into the driver/pilot/passenger compartment of a car/truck/airplane.
?
2011-03-08 12:43:13 UTC
There doesn't really have to be one.



Some aircraft do not have a firewall.



But it does provide a number of functions on most that do. For instance on a great many planes the firewall acts as a structural member to "beef up" a hard point that other structures are then affixed to.



This does a number of things, firstly it provides for a starting point (and terminator) for much of the most severe vibrations to arise in a plane. This allows for easier compilation of the wave forms in predicting flutter probability in the first few steps of designing the aircraft's airframe.



If there is a "bell" incorporated into the design it can even REDUCE these vibrations, by dampening them through conversion to audible and inaudible "noise". Care should of course be taken to make darn sure the frequencies of the bell are not harmful, but that SHOULD go without saying...



Firewalls of course also keep fires from spreading if there is a PRAYER of doing so (aircraft fires are typically VERY HOT and if action is not immediately taken to quench these no fire wall is likely to last long enough to matter...).



Firewalls are usually heavy too. This allows some ballast to be placed where the designer WANTS IT. This often shortens the lever the prop is working against, sometimes reducing vibration periods from the engine compartment and to some degree. This also decreases aerodynamic loads in SOME DESIGNS (both drag and structural).





A good way to picture how all this works is to get the plans of an F4F2 and ask a computer to analyze the design WITHOUT a firewall.
2011-03-08 07:43:29 UTC
The firewall performs a number of functions;



- seals out carbon monoxide

- is a soundproof barrier (barely)

- provides a mount for ancillary engine pieces

- slows down an engine fire from entering the cabin

- part of the engine cowling is sometimes attached to the firewall

- stiffens the front structure of the aircraft
French Fry Hunter
2011-03-08 06:39:48 UTC
it is a barrier between the engine and cockpit in the event of an engine fire or engine compartment fire. It helps keep the people in the cockpit from becoming engulfed in flames while flying at 8000 ft.



Your car has an engine firewall as well. Did you know that?
2011-03-08 14:20:33 UTC
Firewall = Fire Wall...a barrier to keep out fire (if one breaks out) as well as smoke or exhaust fumes. It is an integral structural component, particularly important for fastening cowlings. A number of other items may be mounted on it as well, depending on the specific aircraft.
tichur
2011-03-08 06:40:15 UTC
It's a fireproof partition between the engine compartment and the cockpit to prevent fire from entering.
2016-02-28 11:26:56 UTC
mix fuel and air


This content was originally posted on Y! Answers, a Q&A website that shut down in 2021.
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