Thruster Plate design question

  I'm designing a ship (a jump capable starship in my case) with
Thruster Plates.  I'm operating under the impression that the Thruster
Plates provide lift as well as thrust.  I know some folk have done
FF&S designs was thruster platers rather than CG & HEPLAR.  Could one
of you folks please tell me if I'm heading in the right direction?

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Mark Urbin -- [email removed] -- These opinions are mine.
"As women and as lawyers, we must never again shy from raising our
 voices against sexual harassment." - Hillary Rodham Clinton, at a
 1992 American Bar Association luncheon praising Anita Hill.
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