  We calculate the form of the corrections to the electroweak interactions in
the class of Higgsless models which can be "deconstructed'' to a chain of SU(2)
gauge groups adjacent to a chain of U(1) gauge groups, and with the fermions
coupled to any single SU(2) group and to any single U(1) group along the chain.
The primary advantage of our technique is that the size of corrections to
electroweak processes can be directly related to the spectrum of vector bosons
("KK modes"). In Higgsless models, this spectrum is constrained by unitarity.
Our methods also allow for arbitrary background 5-D geometry, spatially
dependent gauge-couplings, and brane kinetic energy terms. We find that, due to
the size of corrections to electroweak processes in any unitary theory,
Higgsless models with localized fermions are disfavored by precision
electroweak data. Although we stress our results as they apply to continuum
Higgsless 5-D models, they apply to any linear moose model including those with
only a few extra vector bosons. Our calculations of electroweak corrections
also apply directly to the electroweak gauge sector of 5-D theories with a bulk
scalar Higgs boson; the constraints arising from unitarity do not apply in this
case.
