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                                                                   Exhibit 31.1
                                CERTIFICATIONS

I, Jeffrey A. Leddy, certify that:

   1. I have reviewed this Form 10-K/A of SkyTerra Communications, Inc.;

   2. Based on my knowledge, this report does not contain any untrue statement
      of a material fact or omit to state a material fact necessary to make
      the statements made, in light of the circumstances under which such
      statements were made, not misleading with respect to the period covered
      by this report;

   3. Based on my knowledge, the financial statements, and other financial
      information included in this report, fairly present in all material
      respects the financial condition, results of operations and cash flows
      of the registrant as of, and for, the periods presented in this report;

   4. The registrant's other certifying officer and I are responsible for
      establishing and maintaining disclosure controls and procedures (as
      defined in Exchange Act Rules 13a-15(e) and 15d-15(e)) for the
      registrant and have:

      a) designed such disclosure controls and procedures, or caused such
         disclosure controls procedures to be designed under our supervision,
         to ensure that material information relating to the registrant,
         including its consolidated subsidiaries, is made known to us by
         others within those entities, particularly during the period in which
         this report is being prepared;

      b) evaluated the effectiveness of the registrant's disclosure controls
         and procedures and presented in this report our conclusions about the
         effectiveness of the disclosure controls and procedures, as of the
         end of the period covered by this report based on such evaluation;
         and

      c) disclosed in this report any change in the registrant's internal
         control over financial reporting that occurred during the
         registrant's most recent fiscal quarter (the registrant's fourth
         quarter in the case of an annual report) that has materially
         affected, or is reasonably likely to materially affect, the
         registrant's internal control over financial reporting; and

   5. The registrant's other certifying officer and I have disclosed, based on
      our most recent evaluation of internal control over financial reporting,
      to the registrant's auditors and the audit committee of registrant's
      board of directors (or persons performing the equivalent function):

      a) all significant deficiencies in the design or operation of internal
         controls over financial reporting which are reasonably likely to
         adversely affect the registrant's ability to record, process,
         summarize and report financial information; and

      b) any fraud, whether or not material, that involves management or other
         employees who have a significant role in the registrant's internal
         control over financial reporting.




         Date:  November 10, 2005   By:  /s/ JEFFREY A. LEDDY
                                         ----------------------------------
                                         Jeffrey A. Leddy
                                         Chief Executive Officer and President
                                         (Principal Executive Officer and
                                             Principal Financial Officer)