# STC SA941CE - Type: Supplemental type certificate - Status: Current, Issued - Holder: Great Lakes Aircraft Co, United States - Description: Installation of engine, propeller and fuel system. - Applied: August 25, 1972 - Status date: July 1, 1973 - Product: Aircraft, Single-Engine - Certification basis: Part 21 - Data sheets: [TCDS A18EA](https://openairdocs.org/tcds/A18EA) - Certificate PDF: https://openairdocs.org/files/sha256/cf/5c/cf5c3575a2277bb8f49173545cc73817faa188ca72c448a0d6721610cf40f0da - FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/8FDEF9B2A567A8D985256CC20058EAF3.0001 - DRS record last changed: December 6, 2025 - Page: https://openairdocs.org/stc/SA941CE ## ADs that name it (0) None. ## Approved models (1) - Chaparral Motors Inc. 2T-1A ([TCDS A18EA](https://openairdocs.org/tcds/A18EA)) ## What the certificate says This is OCR from the scanned FAA certificate. OCR can misread letters and numbers. Department of Transportation Federal Aviation Administration Supplemental Type Certificate Number 8A94102 This corificale, issud le Great Lakes AlIcIeft Company 1. 0. Box 11132 Wichita, Kansas 67202 Purt of the Peder 82 As Lation Regulalions *See Page 3 for certification basis. Original Product Typolertificate Number: ABLA Make: Great Lakes Mentel: 21-2A Description of Type Design Change: and a new fuel system. Installation of Lycoming 0-32C-E2A 140 HP engine, McCauley 1C160-EGH-7654 propeller Simillions urdunditions: Installation of engine, propeller and fuel system 1n A copy of this STC and the FAA approved flight manual dated July 13, 1973, or later approved revisions, which is a part of this SIC must be included in the permanent records of each sirplane modified in accordance with this STC. THIEVONenature ) Chief, Engineering & Manufacturing Branch ( l itle ) FAA FOR- 8110-2110-68) Page 1 of 3 Pages United States of America Department of Transportation Federal Aviation Administration Supplemental Type Certificate (Continuation Sheet) Number: SA94 1C8 Limitations and Conditions: (continued) Eligibility: Serial Number 0501 and 0502 only: I. Great Lakes 2T-1A as modified by this STC; 1 or 2 POLB (acrobatic category) Engine Lycoming 0-320-E2A Fue 1 80/87 minimum grade aviation gasoline Engine Limits Takeoff 2450 x.p.m. (140 hp) Maximum Continuous 2450 x.p.m. (140 hp) Propeller and McCauley 1C160-EGM 7654 Propeller Limits Diameter: not over 75 inches, not under 74.5 inches Static r.p.m. at maximum permissible throttle setting: not over 2350, not under 2250. No additional tolerance permitted. Airspeed Limits Landp lane C.A.S. Maxinum Speed (S.L.) 120 m.p.h. (105 knots) Landing Speed 50 m.p.h. (44 knots) Cruising Speed 110 m.p.h. (95 knots) Never Exceed 142 =.p.h. (124 knots) M.A.C. 40.0 inch (L.E. of M.A.C. 16 Sta. 9.0) C.G. Range IWO. 16.8 et 1425 lbs. or less 21.0 at 1750 1bs. Aft 23.8 at 1750 1bs. or less Straight line variation between points given Leveling Means Upper longeron at cockpit Maximum Weight 1750 1bs. Minimum Crew 1 (pilot) Number of Seats Two **FAA FORM 8110-2-1 (10-69) PAGE 2F 3PAGES** United States of America Department of Transportation Federal Aviation Administration Supplemental Type Certificate (Continuation Shect) Number: SA94,30z Da tum 4.30 inches forvard from center line of main landing gear axle, Maximum Baggage 13 ibu. as 2 place 200 lbs, as 1-place (Pay load includes 2 parachutes, 20 ibs, each) Fuel Capacity 26 gal. (26,0 gal. useable, one 20 gallon tank in top wing at +13.0). Sea Noto 1 for data on unuscable fuel. 011 Capacity 8 qt. (-24,0) (2 gt. unuscable) Seo Note 1 for data on system oil Control Surface Aileron 22 + 1 Movementa Stabilizer to + s° Up Elevator NOTE L. Arrent wengot and balance report together with list of oquipuenr included in certificated empty weight and loading instructiona when nocossary must be provided fox each aircraft at the tine of original cectification. Tho cortificated empty weight and correspouding conter of gravity location must include unuseable fuel of 0.0 lb. at (+13.0) and mysten oil of (1.0) lb. at (-4.0). *Certification basis - Aeronautical Bulletin 7A for basic airirame, PAR 23 dated February 1, 1967, Amendments 23-1 through 23-1 for engine installation aud Fuel System and Exemption No. 1163. **FAA FORM 8110-2-1 (10-69) PAGE OF3 PAGES** ## Every issue (1) - July 1, 1973: Issued, Current. [certificate](https://openairdocs.org/files/sha256/cf/5c/cf5c3575a2277bb8f49173545cc73817faa188ca72c448a0d6721610cf40f0da) --- 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.