Making Sense of Best Glide and Glide Ratio

[201Steve]

On 2/16/2025 at 6:45 PM, MikeOH said:

 My biggest fear is going for an airport close to the edge of the glide ring vs. accepting a for-certain makeable off-field site.

This. 
 

So many people have died within a quarter mile of an airport trying to save the airplane. 
 

if I have an engine failure, I care nothing about the airplane. Whatever consequence comes, I’m fine with it so long as I’m sitting at my dinner table that night. 

[TheBearFlies]

I may have gone through that discussion too fast and missed something. Best glide speed per the POH based on weight. That speed will in theory give you minimal altitude loss for distance, traveled. Glide Ratio= distance traveled for altitude lost. Pitch for best glide don’t exceed critical AOA, target a landing spot, run through engine fail procedures.

[Max Clark]

6 hours ago, 201Steve said:

So many people have died within a quarter mile of an airport trying to save the airplane. 
 

if I have an engine failure, I care nothing about the airplane. Whatever consequence comes, I’m fine with it so long as I’m sitting at my dinner table that night. 

I ended up adding buffer to my glide ratio for the rings display. Figured it would help remove temptation if something happened. 

[Max Clark]

Vbg:

3368 lbs 91.5 KIAS

3200 lbs 89 KIAS

2900 lbs 84.5 KIAS

2600 lbs 80 KIAS

FF performance profile has 89 KIAS and 11.5:1 Glide

G3x was set for 85

GTN was set for 89

POH Emergency procedures spell out 85 KIAS in multiple places - this is the number I’m going to use and set everything to

The Hartzel 3 blade prop drops “approximately 7%” on glide ratio - but trying to figure out what the starting number is based on that image…