embodiments fig3 illustrates device 10 but with a pivot arrangement in steering shaft 42 that is different from that shown in fig1 in the embodiment of fig1 the upper section 44 extends past pivot 46 in the embodiment of fig3 the lower section 45 extends past pivot 46 bias spring 47 in both the embodiments of fig1 and 3 may be an expansion spring or other suitable means fig4 a illustrates a perspective view from below horizontal of hydrofoil device 10 having a compression spring based pivot mechanism 70 in steering shaft 42 fig4 b illustrates a close up perspective view of the compression spring based pivot mechanism 70 the embodiment of fig4 a u2013 4b provide a coupling member 71 that couples upper section 44 to lower section 45 via pivot 46 a compression spring 72 is provided between the upper and lower sections 44 45 and adjacent pivot 46 such that it compresses in a manner that increases u03b1 and u03b2 and expands in a manner that decreases these two angles such that foil 30 functions as discussed above fig5 illustrates hydrofoil device 10 albeit with a leaf spring type mechanism 81 coupled to pivotally connected sections 44 45 the leaf spring 81 may be made of steel or fiberglass or other suitable material it may be formed with loops at both ends which are then coupled to the respective shaft sections 44 45 by mounting pins other mounting mechanisms may be used spring 81 functions in a manner similar to compression spring 72 fig6 illustrate hydrofoil device 10 albeit with a linear coil spring 82 coupled between shaft sections 44 45.