  We provide a classification of globally generated vector bundles with $c_1 =
5$ on the projective 3-space. The classification is complete (except for one
case) but not as detailed as the corresponding classification in the case $c_1
= 4$ from our paper [Memoirs A.M.S., Vol. 253, No. 1209 (2018), also
arXiv:1305.3464]. We determine, at least, the pairs of integers $(a , b)$ for
which there exist globally generated vector bundles on the projective 3-space
with Chern classes $c_1 = 5$, $c_2 = a$, $c_3 = b$ (except for the case $(12 ,
0)$ and the complementary case $(13 , 5)$ which remain undecided), we describe
the Horrocks monads of these vector bundles and we organize them into several
families with irreducible bases. We use some of the results from our paper
[arXiv:1502.05553] (for which we give, however, a direct self-contained proof
in one of the appendices of the present paper) to reduce the problem to the
classification of stable rank 3 vector bundles $F$ with $c_1(F) = -1$, $2 \leq
c_2(F) \leq 4$, having the property that $F(2)$ is globally generated. We use,
then, the spectrum of such a bundle to get the necessary cohomological
information. Some of the constructions appearing in the present paper are used
(and reproduced, for the reader's convenience) in another paper of ours
[arXiv:1711.06060] in which we provide an alternative to Chang and Ran's proof
of the unirationality of the moduli spaces of curves of degree at most 13 from
[Invent. Math. 76 (1984), 41--54].
