Hi, I have just been practicing some 'windy' approaches and landings into EGLL (Heathrow) with the Fenix A320 V2, and using FSiPanel to set up the approach.

After what I thought was a very good landing on to RW 27L at EGLL,  FSiPanel informs me that my landing rate of descent was 139 fpm, with which I was very pleased. I recently downloaded Landing Rate Manager (LRM) from flightsim.to, and on that same landing,  informs me that my landing rate of descent was 394 fpm and rated it as a firm landing.

Clearly they cannot both be right, and I would have assumed that both software programs would be drawing the data from the same source, obviously not.

Can anyone help explain the disparity, and which one, if any, show the correct landing rate of descent.

I tend to find LRM gives a far higher rate of descent than SmartACARS. Whilst not 100% sure which is right, my feeling is LRM is off...

 

G

If you bounce, which is not unusual in the Fenix, LRM rates the first touchdown, while many ACARS rate the second touchdown which is often much less. With the 737, and no bouncing, they are usually the same, at least this has been my experience.. 

I noticed the same with both Flow Pro ,  FsiPanel and ACARS as SAS and Norwegian. All different ratings so its just for the recording here. The feeling is more important anyway which can be tricky though.

Michael Moe

 

I wouldn't worry about those rates unless you are consistently exceeding touch down limits for the aircraft😋.

I just checked A Pilots Life V2 and LRM, exactly the same. 

Take those landing rate monitors as a "grain of salt."

How do they work? Do they have a unique program fps that each record descent rate at different frames and the last recorded frame before touchdown is displayed? If so I could see how the timing of program start could make a difference. 

Just now, WestAir said:

How do they work? Do they have a unique program fps that each record descent rate at different frames and the last recorded frame before touchdown is displayed? If so I could see how the timing of program start could make a difference. 

I think it just uses your  rate of descent at touchdown. Most of them show the G loading too. 

23 minutes ago, Bobsk8 said:

I think it just uses your  rate of descent at touchdown. Most of them show the G loading too. 

I can't imagine they look at every in game frame, considering they all spit out unique and wildly different results. 

9 minutes ago, WestAir said:

I can't imagine they look at every in game frame, considering they all spit out unique and wildly different results. 

The three that I use, give me the same results all the time. A Pilots LIfe, LRM, and Smartcars from my VA. Close enough for me. 

Just landed in Reno in the 737. 

 

 

 

Definitely sounds like a bounce.

53 minutes ago, s0cks said:

Definitely sounds like a bounce.

LMR are a joke may as well try the landing challenges.

I know some landing rate monitor systems (such as the one in Neofly) only consider actual rate of descent, which means if the runway isn't 100% horizontal, you either get rated higher or lower than actual.

 

I stopped paying attention to such things, at least until there's evidence they're looking at the data they should be looking at.