Jump to content

Recommended Posts

Posted
  On 11/2/2017 at 2:05 AM, steingar said:

You wouldn’t notice the loss of a mag in flight. Ask me how I know.

Expand  

Depends on how you're running. ROP not so much. LOP, the rough running and power loss are exacerbated. In either case, EGTs climb significantly >100df

Posted
  On 11/2/2017 at 12:32 AM, Shadrach said:

I think you are over estimating the performance loss by quite a bit. Although if your engine has been retimed to 20BTDC you've already taken a hit in climb performance.  Some of the lost performance could be recaptured with proper leaning. Going from a dual ignition to single would certainly cost some power, but not the 45-50% you're suggesting.

Expand  

I actually did take off on one mag in a J3 cub when I was a student. I'm fairly sure I had checked it but that was just when it decided to fail. It was a 2000 foot grass strip with trees to clear and it sounded different and barely cleared the trees instead of easily cleared the trees. I was really glad for dual mags. 

Posted
  On 11/2/2017 at 6:04 PM, pinerunner said:

I actually did take off on one mag in a J3 cub when I was a student. I'm fairly sure I had checked it but that was just when it decided to fail. It was a 2000 foot grass strip with trees to clear and it sounded different and barely cleared the trees instead of easily cleared the trees. I was really glad for dual mags. 

Expand  

Stock J3s in my neck of the woods fly 500' patterns because they barely climb with both mags, so I'm not surprised. I know of someone who departed with a bad mag in a Mooney to reposition to an airport 20NM away with a MX facility. They climbed to 10,500' over the departure airport before proceeding to their destination. Climb performance was more than adequate.

Posted

Just use the Harrison Ford standard:  If you start landing on golf courses and taxiways, you might have a problem.  Otherwise, get out and fly!

 

 

 

:P

  • Like 1

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.

×
×
  • Create New...

Important Information

We have placed cookies on your device to help make this website better. You can adjust your cookie settings, otherwise we'll assume you're okay to continue.