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707-420 Engine Fire?

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707-420 Engine Fire?

Postby N5818 » Sun Aug 30, 2015 10:28 pm

Hello all,

Anyone know of a way to make the engine(s) on the Boeing 707-420 catch on fire? I want them to fire, not just fail.
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Re: 707-420 Engine Fire?

Postby legoboyvdlp » Sun Aug 30, 2015 10:34 pm

Keep it at max throttle for about 10 minutes seems to work for me. Oh for a challenge open the window in flight. :P
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Re: 707-420 Engine Fire?

Postby N5818 » Sun Aug 30, 2015 10:46 pm

I've tried this, and with throttle at max, even going into an emergency dive, the engines won't light up. I crashed into the ocean though, it lit up then.

I once opened the window by accident and couldn't figure out how to pressurize the cockpit afterwards and had to go into an emergency dive until I was at a low enough altitude. Also, do the engine fire extinguishers work?
Last edited by Johan G on Mon Aug 31, 2015 1:11 pm, edited 1 time in total.
Reason: No useless quoting please. No need to quote the entire preceding post.
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Re: 707-420 Engine Fire?

Postby legoboyvdlp » Mon Aug 31, 2015 1:36 am

Uh, worked but it switches them off so you crash :) Maybe try climbing full throttle for 10-15 min, see if it does the trick. Maybe its a random thing...
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Re: 707-420 Engine Fire?

Postby MIG29pilot » Mon Aug 31, 2015 12:21 pm

The best way is to crash into the aerial refueling tanker. Problem is, you have to reinit if you want to fly again.
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Re: 707-420 Engine Fire?

Postby Jabberwocky » Mon Aug 31, 2015 10:35 pm

Funny thing, but if you switch the fuel heaters off (engineer's panel bottom left), the engines got stuck up and ignite at some point. Seems to work for me quite reliable.
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Re: 707-420 Engine Fire?

Postby N5818 » Tue Sep 01, 2015 5:28 pm

legoboyvdlp wrote in Mon Aug 31, 2015 1:36 am:Uh, worked but it switches them off so you crash :) Maybe try climbing full throttle for 10-15 min, see if it does the trick. Maybe its a random thing...


Here's the stuff I've tried (off the top of my head):

-Full throttle takeoff
-Full throttle takeoff and climb to 25,000
-Full throttle takeoff and climb to 25,000 and fly a heading for as long as I want (as far as I can tell)
-Full throttle and speed brakes at a heading.

The closest I've seem to come is to set the pneumatic brake and then put to full throttle (whilst on the ground) and it seems to heat them up, but I've never had them catch fire.
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Re: 707-420 Engine Fire?

Postby N5818 » Tue Sep 01, 2015 5:31 pm

Jabberwocky wrote in Mon Aug 31, 2015 10:35 pm:Funny thing, but if you switch the fuel heaters off (engineer's panel bottom left), the engines got stuck up and ignite at some point. Seems to work for me quite reliable.


I will try this. Thanks for your suggestion.
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Re: 707-420 Engine Fire?

Postby Husky Dynamics » Mon Oct 12, 2020 9:43 pm

Sorry for being so late to the discussion (5 years late to be exact), but the best way I've found to reliably ignite an engine (or multiple) is to rapidly cycle the generator drive disconnects (under the red covers near the upper left of the engineering panel). Toggling the switch (or multiple switches if you really want the plane to have a bad day) trips the three breaker switches below each gen drive. Once the breakers trip, switch the gen drive back on and wait a few seconds for the fire horn to sound.
Works every time and doesn't completely kill the engines (it is possible to extinguish the fire by pulling the engine's fire handle and pressing the fire bottle discharge in the lower right engineering panel corner, and from there you can usually restart the engine, though it's sometimes a bit finicky).
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