  The Large European Array for Pulsars (LEAP) is a European Pulsar Timing Array
project that combines the Lovell, Effelsberg, Nan\c{c}ay, Sardinia, and
Westerbork radio telescopes into a single tied-array, and makes monthly
observations of a set of millisecond pulsars (MSPs). The overview of our
experiment is presented in Bassa et al. (2016). Baseband data are recorded at a
central frequency of 1396 MHz and a bandwidth of 128 MHz at each telescope, and
are correlated offline on a cluster at Jodrell Bank Observatory using a
purpose-built correlator, detailed in Smits et al. (2017). LEAP offers a
substantial increase in sensitivity over that of the individual telescopes, and
can operate in timing and imaging modes (notably in observations of the
galactic centre radio magnetar; Wucknitz 2015). To date, 4 years of
observations have been reduced. Here, we report on the scientific projects
which have made use of LEAP data.
