Exhibit 31.1

SARBANES-OXLEY SECTION 302(a) CERTIFICATION

I, Christopher M. Armstrong, certify that:

|1. | I have reviewed this Form 10Q for the period ended February 28, 2009 of ESE Corp.;                                                                                                                                                                                                                       
|-- | ---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
|  
|2. | Based on my knowledge, this report does not contain any untrue statement of a material fact or omit to state amaterial 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, fairlypresent 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. | I am responsible for establishing and maintaining disclosure controls and procedures (as defined in Exchange ActRules 13a-15(e) and 15d-15(e)) and internal control over financial reporting (as defined in Exchange Act Rules13a-15(f) and 15d-15(f)) for the registrant and have:                      
|
|
|  
|   | a.                                                                                                                                                                                                                                                                                                       
|  
|   | b.                                                                                                                                                                                                                                                                                                       
|  
|   | c.                                                                                                                                                                                                                                                                                                       
|  
|   | d.                                                                                                                                                                                                                                                                                                       
|  
|5. | I have disclosed, based on my most recent evaluation of internal control over financial reporting, to theregistrants auditors and the audit committee of the registrants board of directors (or persons performing theequivalent functions):                                                           
|
|
|  
|   | a.                                                                                                                                                                                                                                                                                                       
|  
|   | b.                                                                                                                                                                                                                                                                                                       
|  

|Date: | April 10, 2009 | CHRISTOPHER M. ARMSTRONG                                   
|----- | -------------- | -----------------------------------------------------------
|      |                | Christopher M. Armstrong                                   
|      |                | Principal Executive Officer and Principal Financial Officer

---