Capacity Plate

[russell1]

does anybody have the weights for a 69 22 flatback

[jdupree]

The 1982 models used the number without the dash, so yours would be a 200 CCP.  Here are specs on the 1982 200 CCP:

Length:  20' 2"
Beam:  7' 10"
Draft:  12"
Transom:  25"
Weight, dry:  1900 lbs
Capacity:  1800 lbs.
Max. HP:  200
Fuel cap.:  73 gals.
Hull type:  Deep V, 20 degree deadrise

The hull was available in two colors:  Ivory Mist, and a two-tone Tahitian Tan and White.  

Standard equipment included:
- Built-in tackle box
- Dual radio lockers
- Instrument panel with cover
- "Coffin" fish boxes
- Rod racks
- Front anchor locker
- Twin helm chairs
- Live bait well

A fiberglass t-top was an option, and even a tower with dual controls on the 222CCP and the 246CCP.

Thanks Cap'n John,

How can I determine the number of persons and their weight that originally came on the coast guard plate I assume the 1800lb capacity included motor, occupants, gear, etc

[GoneFission]

Take the weight of the motor (~480 lbs) and the weight of a full tank of gas (73 gals x 7.14 lbs/gal = 522) for a total of 1000 lbs.  

Take the 1000 lbs from the total gross capacity of 1800 lbs and you will have 800 lbs net capacity.  Divide that by 135 (I know that seems low, but I'm pretty sure that's what is used by the USCG) and you will get 5.9, or close enough to 6 people.  If you were to use a more realistic number, say 150 lbs/person, it would be 5.3 or closer to 5.  And obviously, if you use a number that's closer to the kind of bubbas I seem to have on the boat, the weight per passenger is probably closer to 200, taking it down to 4.  

So the plate would have a capacity of 5 or 6 people, depending on how conservative Aquasport chose to be.  

[jdupree]

Take the weight of the motor (~480 lbs) and the weight of a full tank of gas (73 gals x 7.14 lbs/gal = 522) for a total of 1000 lbs.  

Take the 1000 lbs from the total gross capacity of 1800 lbs and you will have 800 lbs net capacity.  Divide that by 135 (I know that seems low, but I'm pretty sure that's what is used by the USCG) and you will get 5.9, or close enough to 6 people.  If you were to use a more realistic number, say 150 lbs/person, it would be 5.3 or closer to 5.  And obviously, if you use a number that's closer to the kind of bubbas I seem to have on the boat, the weight per passenger is probably closer to 200, taking it down to 4.  

So the plate would have a capacity of 5 or 6 people, depending on how conservative Aquasport chose to be.  

My 170 said 5 persons or 685lbs.  So I guess the 20' CCP would be around 6 persons or 800lbs.  Would that sound right?  Thanks

[John Jones]

my '78 22-2 says 5 persons

[GoneFission]

DuPree - I think you are correct at 6 people and/or 800 lbs. capacity for people, gear, ice, and beer.  Remember the bluebird sailor's rule:  You can always leave the dock with the gas tank half empty if you need to carry more beer.  

And JJ:  Don't I remember that your boat has twin tanks?  That extra gas tank will cost you a person in capacity.  The 22-2CCP has a standard 85 gallon tank - that's 606 lbs, and the rigged engine is again about 500 lbs, so that's 1100 lbs off the 22-2CCP capacity of 2000 lbs.  - that would be 900 lbs left or 6 people.  But add in another 35 gallon gas tank at 7.14 lbs per gallon of gas, and the capacity drops to 650 lbs, which is 5 people.  
   

See ya on the water!

[hunter]

Thanks jdupree!!  That was verry helpful.

[RickK]

... and the weight of a full tank of gas (73 gals x 7.14 lbs/gal = 522).....  

Are you including the weight of the tank itself too, in your calcs?  
Not meant to be a lecture - just good info for all:

http://www.engineeringtoolbox.com/specific-gravity-liquids-d_336.html
Gasoline, Vehicle = has a specific gravity of 0.74 (pure water =1.00)

http://www.grow.arizona.edu/Grow--GrowResources.php?ResourceId=227
The weight of water is 8.34 lbs per gallon.

The weight of a gallon of "Vehicle Gasoline" is 8.34 (weight of water) x 0.74 (density or ratio) = 6.17 lbs per gal - gasoline has less gravity so that's why water goes to the bottom of your tank. If you premix oil I guess we could add that in too but that is not enough weight to worry about, IMO.

So this frees up a little more weight for your beer.

[John Jones]

Capt. John, You are correct.  I do have a 32 gal in front of the console.

[GoneFission]

Rick - you are right!  I was using the weight per cubic foot of gasoline (45.9) and then converting cubic feet to gallons.  However, I was using dry weight (6.42 gal./cu.ft.) not liquid (7.48 gal./cu.ft.).  Using the right value, gasoline comes in at 6.14 lbs./gallon.  

Sorry for the error, but 1 lb./gallon does not upset the values much...  It's just a little embarassing for an engineer to make a mistake like that - kinda like NASA mixing up meters and feet for that Mars mission!  

Thanks for the catch!  
 :!:

[Shine]

The CG calculations have little to do with what is safe.  For instance, just by closing in a low transom you can dramatically increase the "capacity" with their method even if the boat were heavier.

[damnitbadger]

This off a 1988 222 CCP. I know it's not what the original poster needed but may be useful to others, maybe not.

[aqua70]

I am having the capacity plate made.
Does this sound correct?
1970 Aquasport Custom 17"
5 persons 685 lb
1235 lb. persons, motor, & gear
Max HP 85

I am going to have it made by custom marine labels.
They were on an earlier post.

Thanks Ron G

[jdupree]

Ron,

That should be correct.  Look back at this thread earlier and I listed the specs right off the coast guard plate on my 170.

[aqua70]

Looks good to me.
Thanks John, That is where I took it from. I appreciate your help.
Did you mail me the holder?