This work is devoted to the behavior of TCP when it takes place in an internal multihop wireless network. We limit our study to topologies of chains. First, we evaluate the maximum throughput that a multihop path can sustain as a function of the number of TCP flows. Then, we measure the maximum throughput that a TCP flow can attain as a function of the number of hops involved in the path. Finally, we compare our results to theoretical estimates by other researchers.