The Collaborative International Dictionary of English v.0.48:

Loadmanage \Load"man*age\, Lodemanage \Lode"man*age\, n.
   Pilotage; skill of a pilot or loadsman. [Obs.] --Chaucer.
   [1913 Webster]

Bouvier's Law Dictionary, Revised 6th Ed (1856):

LOADMANAGE, maritime law, contracts. The pay to loadsmen; that is, persons
who sail or row before ships, in barks or small vessels, with instruments
for towing the ship, and directing her course, in order that she may escape
the dangers in her way. Poth. Des Avaries, n. 147; Guidon de la Mer, ch. 14;
Bac. Ab. Merchant and Merchandise, F.