<DOCUMENT>
<TYPE>EX-23.1
<SEQUENCE>4
<FILENAME>dex231.txt
<DESCRIPTION>CONSENT OF ARTHUR ANDERSEN
<TEXT>
<PAGE>

                                                                    EXHIBIT 23.1





                   Consent of Independent Public Accountants


As independent public accountants, we hereby consent to the incorporation by
reference in this Form S-8 Registration Statement of our report dated October
27, 2000 included in Innovative Solutions and Support, Inc.'s Form 10-K for the
year ended September 30, 2000.



/s/ ARTHUR ANDERSEN LLP


Philadelphia, Pennsylvania

September 27, 2001

</TEXT>
</DOCUMENT>
