Exhibit 23.2

Consent of Independent Registered Public Accounting Firm

We have issued our report dated March 15, 2006, accompanying the consolidated financial statements of Kitty Hawk, Inc. and Subsidiaries appearing in the Company’s Annual Report on Form 10-K, for the year ended December 31, 2005, which is incorporated by reference in this Registration Statement and Prospectus. We consent to the incorporation by reference in the Registration Statement and Prospectus of the aforementioned report and to the use of our name as it appears under the caption, “Experts.”

/s/ Grant Thornton LLP

Dallas, Texas

August 21, 2006