| x   | QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 |
|---------------|-----------------------------------------------------------------------------------------|

| o   | TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 |
|---------------|------------------------------------------------------------------------------------------|

| Delaware                                                       |   | 94-3263974                           |
|----------------------------------------------------------------|--------|--------------------------------------|
| (State or Other Jurisdiction of Incorporation or Organization) |   | (I.R.S. Employer Identification No.) |

| Exhibit Number      |  Description                                                                                                                                                                                                                                                                            |
|---------------------|---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
|  10.13         | Loan and Security Agreement, between the Company, Union Bank, N.A. as agent, and the participating lenders thereunder, dated April 28, 2010, incorporated by reference to Exhibit 99.1  to the Report on Form 8-K filed with the Securities and Exchange Commission on May 4, 2010                |
|  10.14         | Subordination and Intercreditor Agreement, between the Company, Union Bank, N.A. as agent, and the Subordinated Creditors thereunder, dated April 28, 2010, incorporated by reference to  Exhibit 99.2 to the Report on Form 8-K filed with the Securities and Exchange Commission on May 4, 2010 |
|  10.15         | Management Fee Subordination Agreement, between the Company, JetFleet Management Corp. and Union Bank, N.A. as agent, dated April 28, 2010, incorporated by reference to  Exhibit 99.3 to the Report on Form 8-K filed with the Securities and Exchange Commission on May 4, 2010                 |
| 10. 16 #^           | Form of Revolving Note dated June 4, 2010, delivered to Umpqua Bank, issued under the Loan and Security Agreement between the Company and Union Bank, as Agent, dated April 28, 2010.                                                                                                             |
| 31.1#               | Certification of Neal D. Crispin, Chief Executive Officer, pursuant to Section 302 of the Sarbanes-Oxley Act of 2002.                                                                                                                                                                             |
| 31.2#               | Certification of Toni M. Perazzo, Chief Financial Officer, pursuant to Section 302 of the Sarbanes-Oxley Act of 2002.                                                                                                                                                                             |
| 31.3+               |  Certification of Neal D. Crispin, Chief Executive Officer, pursuant to Section 302 of the Sarbanes-Oxley Act of 2002                                                                                                                                                                   |
| 31.4+               | Certification of Toni M. Perazzo, Chief Financial Officer, pursuant to Section 302 of the Sarbanes-Oxley Act of 2002                                                                                                                                                                         |
|    31.5   | Certification of Neal D. Crispin, Chief Executive Officer, pursuant to Section 302 of the Sarbanes-Oxley Act of 2002                                                                                                                                                                         |
|    31.6   |  Certification of Toni M. Perazzo, Chief Financial Officer, pursuant to Section 302 of the Sarbanes-Oxley Act of 2002                                                                                                                                                                        |
|    32.1*# |  Certification of Neal D. Crispin, Chief Executive Officer, pursuant to Section 906 of the Sarbanes-Oxley Act of 2002                                                                                                                                                              |
|    32.2*# |  Certification of Toni M. Perazzo, Chief Financial Officer, pursuant to Section 906 of the Sarbanes-Oxley Act of 2002                                                                                                                                                                   |

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|                    | AEROCENTURY CORP. |
|-------------------------|-------------------|
|                    |              |   |
| Date: February 14, 2011 | By:               | /s/ Toni M. Perazzo |
|                    |              | Name: Toni M. Perazzo |
|                    |              | Title: Senior Vice President-Finance and |
|                    |              | Chief Financial Officer |