Jump to content
Aero Precision provides OEM part support for military aircraft operators across more than 20 aircraft
Sign in to follow this  
herky400M

BOG DOWN or FLAME OUT

Recommended Posts

BOG DOWN could be the result of:fuel starvation,water ingestion,FOD,too high prop pitch.In all the above cases there will be RPM decay.RPM may come back up on it's own in some cases.

FLAME OUT could be the result of fuel starvation,too high an airspeed and too low a power lever setting(too much air passing through the engine and not enough fuel,the fire just gets blown out.)With skill and a little bit of luck a relight can/might happen.

Bog down or RPM roll back across the board in a Herk,it's happened a few times,is nothing but bad news!

Share this post


Link to post
Share on other sites

Look in Service Information Letter No.45 1 Feb 1980. If you can't find it pm me and i'll send it to you.

Share this post


Link to post
Share on other sites

Bog Down is when the engine RPMs decay. I've only had it happen on the ground in high ambient air temps and placing engines in low speed ground idle. Going into reverse at too high an air speed can/will cause it.

Flame out is when the fuel in the burner cans quits burning. An engine can bog down and cause a flame out.

Some of our planes had a problem with bog downs in the Middle East in high ambient air temps. It was caused by low speed ground idle on all 4 engines with the air conditioning on (a bad thing to do). The wind direction wasn't blowing toward the engine intakes and the engines starved for air.

Share this post


Link to post
Share on other sites

we had a lightning strike on one of our planes, engine failed, deceleration to 94% and wouldn't go up again, (start limiting?)

any how pilots shut down the affected engine....:confused:

Share this post


Link to post
Share on other sites

Join the conversation

You can post now and register later. If you have an account, sign in now to post with your account.

Guest
Reply to this topic...

×   Pasted as rich text.   Paste as plain text instead

  Only 75 emoji are allowed.

×   Your link has been automatically embedded.   Display as a link instead

×   Your previous content has been restored.   Clear editor

×   You cannot paste images directly. Upload or insert images from URL.

Sign in to follow this  

×
×
  • Create New...