# STC SA1157WE - Type: Supplemental type certificate - Status: Current, Reissued - Holder: Texas Skyways Inc, United States - Description: Installation of Roto-Master (Rajay) turbocharged Continental O-470-A, J, K, L, or R engine. - Applied: December 1, 1965 - Status date: May 19, 2000 - Product: Aircraft, Single-Engine - Certification basis: Part 21 - Data sheets: [TCDS 5A6](https://openairdocs.org/tcds/5A6) - Certificate PDF: https://openairdocs.org/files/sha256/62/94/629400bd556113f8b6be7409f93f3f70e4328a55586ac0c9f4c40712a62903ea - FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/655F433AC329064285256CC10080DF0E.0001 - DRS record last changed: December 5, 2025 - Page: https://openairdocs.org/stc/SA1157WE ## ADs that name it (1) - [AD 81-19-04](https://openairdocs.org/ad/81-19-04): Hose Assembly · Rajay Hose Assemblies, 500A, 500B and 87 more. Effective Sep 17, 1981. Cited in the text ## Approved models (10) - Cessna Aircraft Company 180 ([TCDS 5A6](https://openairdocs.org/tcds/5A6)) - Cessna Aircraft Company 180A ([TCDS 5A6](https://openairdocs.org/tcds/5A6)) - Cessna Aircraft Company 180B ([TCDS 5A6](https://openairdocs.org/tcds/5A6)) - Cessna Aircraft Company 180C ([TCDS 5A6](https://openairdocs.org/tcds/5A6)) - Cessna Aircraft Company 180D ([TCDS 5A6](https://openairdocs.org/tcds/5A6)) - Cessna Aircraft Company 180E ([TCDS 5A6](https://openairdocs.org/tcds/5A6)) - Cessna Aircraft Company 180F ([TCDS 5A6](https://openairdocs.org/tcds/5A6)) - Cessna Aircraft Company 180G ([TCDS 5A6](https://openairdocs.org/tcds/5A6)) - Cessna Aircraft Company 180H ([TCDS 5A6](https://openairdocs.org/tcds/5A6)) - Cessna Aircraft Company 180J ([TCDS 5A6](https://openairdocs.org/tcds/5A6)) ## What the certificate says This is OCR from the scanned FAA certificate. OCR can misread letters and numbers. United States of America Department of Transportation Federal Aviation Administration Supplemental Type Certificate Number SAIISTWE This certificate issued to: Texas Skyways, Inc. 308 Boerne Stage Airfield Boerne, TX 78006 Purt 3* of the Civil Air Regulutions. *See Data Sheet 5A6 Original Product Type Certificate Number: SAO Make: Cessna Model: 180, 180A, 180B, 180C, 180D, 180E, 180F, 180G, 180H, 180J Description of Type Design Change: Installation of Roto-Master (Rajay) turbocharged Continental 0-470-A, 0-470-J, 0-470-K, 0-470-L or O-470-R, engine in accordance with FAA sealed Roto-Master (Rajay) Drawing List No. RJ1550, or later FAA approved revision. Limitations and Conditions: Limitations and Conditions: of Data Sheet No. 5A6 apply except as shown on page 3 and 4 of this STC. A copy of this STC must be included in the permanent records of each airplane modified in accordance with this STC. suspented, revoked or a lumination date is otherwise established by the A devinistrater of the Federal Aviation Administration Date of Application: December 01, 1965 Fate reinsterd: Jan. 14,1968; Feb. 10, 1982; Oct. 30, 1987; Sept: 22, 1995; May 19, 2000; Tale of issuence: June 02,1966 Date Amended: January 15, 1974; March 21, 1985 FEDERAL AVIATION By directi Faul stoma of the Adeninistrater (Signature) Paul C. Sconyers TOMINSTRATIO Associate Manager. ACE-117A Atlanta Aircraft Certification Office (Title) United States of America Department of Transportation Federal Aviation Administration Supplemental Type Certificate (Continuation Sheet) Number SAIISTWE Date of Issuance: June 02, 1966 Date Reissued: May 19, 2000 Limitations and Conditions: 1. - Models 180, 180A, 180B, 180C. 180D, 180E, 180F, 180G, 180H, and 180J (Normal Category) as modified by this STC Engine Continental O-470-A or -J (Models 180), O-470-K (Models 180, 180A, and 180B) or 0-470-L or 0-470-R (Models 180C through 180J) modified to incorporate turbochargers in accordance with Supplemental Type Certificate No SE25 WE. Fuel 100/130 Min. Grade Aviation Gasoline Engine Limits Unturbocharged - same as original Turbocharged - Take Off - 29.5 in. Hg at 2600 RPM (3 min.) (O-470-J only - 2500 RPM) Max. Continuous - 27.0 in. Hg at 2500RPM Propeller and Same as original except - Propeller Limits High pitch setting: Hartzell HC-82XF-1, HC-82XF-6 or HC-A2XF-1/8833 or 8433 30° at 30 in. station. McCauley 2A36C/90M-8 or 90M-2, 2A34C/90A-8 or 90A-2 27° at 36 in. station. Airspeed Limits Same as original except - Reduce Vne 5 MPH per 1, 000 ft. above 22,000 ft. MSL Placards The following placards must be located as shown on Roto-Master (Rayjay) Drawing No. RJ1551, Sheet 2: "MIN. CONT. CLIMB SPEED TURBOCHARGED METO POWER - C.A.S. 110 MPH" "FOR EMERGENCY DESCENT IDLE POWER - C.A.S. 160 MPH" *TURBOCHARGER OPERATION POWER LIMITS TAKEOFF: 29.5" MAP AT 2600 RPM (3 MIN.) MAX. CONT.: 27.0" MAP AT 2500 RPM" FAA FORM 8110-2-1 (10-69) PAGE 3 of 4 PAGES United States of America Department of Transportation Federal Aviation Administration Supplemental Type Certificate (Continuation Sheet) Number SAIISTWE Date of Issuance: June 02, 1966 Date Reissued: May 19, 2000 Limitations and Conditions: (Continued) Placards: (Continued) **TURBOCHARGER OPERATION POWER LIMITS TAKEOFF: 29.5" MAP AT 2550 RPM (3 MIN.) MAX. CONT.: 27" MAP AT 2500 RPM" "REDUCE VNE 5 MPH PER 1, 000 FT. ABOVE 22,000 FT. MSL" "THIS AIRPLANE HAS NOT BEEN FAA EVALUATED FOR FLIGHTS ABOVE 25,000 FT." "WIDE OPEN THROTTLE BEFORE ENGAGING TURBOCHARGER" "100/130 MIN. GRADE AVIATION GASOLINE" * For 0-470-A, O-470-K, 0-470-L, and 0-470-R engines only. ** For O-470-J engine only. FAA approved Roto-Master (Rajay) Airplane Flight Manual Supplement dated June 2, 1966, or later FAA approved revision is required for Models 180, 180A, and 180B. Limitation of Applicability The approval of this change in type design applies to the basic Cessna 180 Series as noted above. This approval should not be extended to other 2 Aircraft models which other modifications are incorporated unless it is determined that the interrelationship between this change and any previously approved modification will introduce no adverse effect on the airworthiness of these aircraft. This installation is eligible on landplane, seaplane or amphibian aircraft of these models. 000. or imprisonment not exceeding 3 years, or both BAA FORM 8110-2-1/10-691 PAGE 4 of 4 PAGES INSTRUCTIONS The transfer endorsement below may be used to notify the appropriate FAA Fegional Office of the transfer of this Supplemental Type Certificate The FAA will reissue the certificate in the name of the transferee and forward it to him. TRANSFER ENDORSEMENT Transfer the ownership of Supplemental Type Certificate Number to (Name of transferee) (Address of transferee) (Number and street) (City, State, and ZIP code ) from (Name of grantor) (Print or type) (Address of grantor) (Number and street) (City, State, and RIP code) Extent of Authority (if licensing agreement): Signature of grantor (In ink): ## Every issue (1) - May 19, 2000: Reissued, Current. [certificate](https://openairdocs.org/files/sha256/62/94/629400bd556113f8b6be7409f93f3f70e4328a55586ac0c9f4c40712a62903ea) --- OpenAirDocs.org is an independent research project of [Contrail Labs](https://contraillabs.com/). It is not affiliated with the FAA or the NTSB. Source documents are U.S. government works in the public domain.