1993 M20M with monroy long range fuel tanks.

[Horis]

I just got home with my 1993 Bravo and have been diligently reading the POH and it appears that with full fuel, I would have to weigh 97 pounds to legally take off with no baggage.  What is the point of having long range fuel tanks????

[kortopates]

what's your useful load?

[alextstone]

30 minutes ago, Horis said:

I just got home with my 1993 Bravo and have been diligently reading the POH and it appears that with full fuel, I would have to weigh 97 pounds to legally take off with no baggage.  What is the point of having long range fuel tanks????

I sent a message to you just now.  Hope it's helpful

[Danb]

I have a Bravo long range tanks UL 1013 me 135, wife 150, luggage 50 100 gal fuel 600..leaving 65+ lbs for stuff. What is your UL it doesn’t make sense

Makes your UL under 800

 

[Niko182]

4 minutes ago, Danb said:

I have a Bravo long range tanks UL 1013 me 135, wife 150, luggage 50 100 gal fuel 600..leaving 65+ lbs for stuff. What is your UL it doesn’t make sense

Makes your UL under 800

 

Could be a bravo with AC and TKS?

[Danb]

33 minutes ago, Niko182 said:

Could be a bravo with AC and TKS?

Has to be. 

[Horis]

5 hours ago, Niko182 said:

Could be a bravo with AC and TKS?

No AC does have tks.  UL is 811.87

[Horis]

7 hours ago, kortopates said:

what's your useful load?

811.87

 

[Niko182]

Was it weighed with 81 tks tanks full or empty? Its supposed to be weighed with the tank full, so when the tks tank is empty adds somewhere between 50 and 100lbs.

[LANCECASPER]

2 hours ago, Horis said:

811.87

 

Something isn’t right there.        After a panel upgrade and dual vacuum pump removal I got my ‘93 Bravo’s useful load up to around 1035. Before any upgrades (and no TKS, but had Monroy tanks) is was 990ish.

[kortopates]

Just a guess, but do records show the plane was re-weighed to get this low of useful load? If so i would look closely at how it was done and consider repeating the process; especially if weighed with tanks full rather than empty.


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[carusoam]

Long bodies typically have near 1k UL…

Until AC, FIKI, and O2 systems are added in the trunk….

See what has been loaded and off loaded through the years…

DanB has the Bravo with 130g tanks… and uses them quite frequently traveling with the wife…

 

Sure it is possible that you like to fly with four people in the plane some days… other days you want to fly with the back seat empty and full tanks….

It would be unusual to fill the seats and the tanks and be within limits…  Mooney tanks are big.

 

Soooo….

Now back to the log homework… to find out where the error in the WnB calculations probably is hiding… also be sure to not double count things… there may be assumptions of what is full and what is empty or somewhere in between….

 

Where weight limits are more common…. the M20K reached its limit with how many systems can be packed into a single plane….  When some of those systems were very heavy compared to today…

 

Chances seem pretty good there is a simple error to be found…

Now we are at it… there is also Charlie weights in the back… make sure your ballast is being properly accounted for… there is less lead when the trunk is full of AC or Fiki….

PP thoughts only…

Best regards,

-a-

[Horis]

21 hours ago, Danb said:

I have a Bravo long range tanks UL 1013 me 135, wife 150, luggage 50 100 gal fuel 600..leaving 65+ lbs for stuff. What is your UL it doesn’t make sense

Makes your UL under 800

How do you get UL of 1013? do you have oxygen, TKS?

 

 

 

[Danb]

10 minutes ago, Horis said:

 

I have oxygen, no tks no a/c, G-1000 avionics. Year 2005

[LANCECASPER]

3 hours ago, Horis said:

 

All Bravos have Oxygen, some have FIKI and less than a handful have A/C.

[PilotX]

1053lbs UL