Jump to content
Sign in to follow this  
Agog

BELL 429 fuel burn

Recommended Posts

On 1/23/2020 at 12:13 AM, Agog said:

Hello,

I'm looking for the single engine fuel burn for a Bell 429.

Thanks,

There’s a typical 0.5 - 0.8 Ibs/hp/hr specific fuel consumption (SFC) index for modern turbine engines. Light helicopter turbines, 0.5 is a good average

The Bell 429’s  one engine inoperative (OEI) 30 minutes hp = 550 SHP. So your OEI would average around:

40gal/hr. @550 SHP     (jetA est. 6.8lbs/gal)

 

 

Edited by iChris

Share this post


Link to post
Share on other sites

It's about 90 gal / hr and can be over 100 if your pulling the guts out....

Share this post


Link to post
Share on other sites
On 1/23/2020 at 12:13 AM, Agog said:

Hello,

I'm looking for the single engine fuel burn for a Bell 429.

Thanks,

 

22 hours ago, Bonzo828 said:

It's about 90 gal / hr and can be over 100 if your pulling the guts out....

The 90gal/hr is a bit high for single engine operation.  However, that's in the range with both engines online, 0.5 - 0.6
 (80 - 97 gal/hr ) in terms of efficiency,  you're looking for < 0.7

SHP(takeoff) = 1100

(0.5 * SHP)/6.8  = 80gal/hr

(0.6 * SHP)/6.8 = 97gal/hr

zAdHyWR.png

Edited by iChris

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.
Note: Your post will require moderator approval before it will be visible.

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.

Loading...
Sign in to follow this  

×
×
  • Create New...