My vote would be for no. In fact my IAR823 (Romanian Exp) has a pressurized cylinder on the firewall with nozzles that have a burst tip to do their thing. I pulled it off.
In my race car I've had 7 fires and used every type of agent available. By the time you detect fire I assure you there is enough damage done that the wiring is usually toast and the engine is coming out either way.
In my "big" fire (video available) I detected fire at about 80mph and by the time I came to a stop it was raging (similar to a takeoff scenario). I had 5lbs of AFFF plumbed into the engine, and 5lbs of Halotron also plumbed into the engine and an additional 2lb Halon handheld. The fire kept on going despite deployement of all of these in the closed engine bay. Finally after a minute the fire crews arrived and one quick shot of an ABC dry-chem later it was all done.
AFFF foam seems to do pretty well if you happen to have the nozzles pointed at the problem and give it some time to do its thing.
Halon and Halotron seem to need an enclosed vessel to get their business done.
ABC does have a melting type agent in the "A" part that makes a mess but lordy it sure knocks fires down. They do make a BC only which should wash out easier but I haven't used that particular one.
Another thing I like about a simple handheld (dry chem is my weapon of choice) is to remember the fire might not be you! You could roll up to an accident on the taxi-way and use it to help remove some occupants or many other scenarios. I know nobody likes dry-chem but it has never once let me down and unintended fire is really attention getting.
My .02. (Edit: Extinguishers are a personal choice so do what makes you sleep well. Any is better than none. My opinions come from specific personal experience and performance background)
Last edited by tjyak50 : 01-23-2020 at 12:25 PM.
Reason: Clarity and avoiding feather ruffling..