STC SA00270BO

FAA 8110-2 (10/24) Page 1 of ___ for SA00270BO Clyde R Smith Jr 54 Smith Lane Lock Haven, PA, 17745 * * *See attached Eligibility List for list of approved aircraft models and applicable airworthiness regulations.

Installation of a Teledyne Continental A-65-8, A-65-8F, A-65-9, A-75-8, A-75-8F, A-75-9, C-75-8, C-75-12, C-85-8,C-85-12, C-90-8F or C-90-12F engine and corresponding propeller identified under Limitations and Conditions: , and components for a landplane maximum gross weight of 1220 lbs., in accordance with STC SA00270BO Installation Instructions and Instructions for Continued Airworthiness, dated September 18, 2009, or later FAA-approved revisions.

1. Paul Babcock Supplemental Airplane Flight Manual for Piper J3 series aircraft, dated October 29, 2009, or later FAA-approved revisions, must be carried in the aircraft during all flights.

Limitations and Conditions: continued on Page 3 of 3) 10/9/07 8/14/25 10/29/09 Robert P. Capezutto Manager, East Certification Branch Compliance & Airworthiness Division Aircraft Certification Service 6

United States of America Department of Transportation Federal Aviation Administration TORM STRATOS Supplemental Type Certificate (Continuation Sheet) Number: SA00270BO Effective Date: 08/14/25

ELIGIBILITY LIST Approved Type Certificate Piper Model Number Certification Basis Serial Numbers Eligible Aeronautics Bulletin 7-A J-3 660 Amended October 1, 1934 1999 and up 2325, 2327, 2340, 2342, 2344, 2345, 2347, 2349, J3C-40, J3C-50, J3C-50S, J3C-65, J3C-65S A-691 Amended April 7, 1950 CAR 4a 2351, 2355 and up, 2356A, 2357A and up, and 8277-1 through 8277-40.

2325, 2327, 2340, 2342, J3F-60S, J3F-65 (Army L- J3F-50, J3F-5OS, J3F-60, 4D), J3F-65S A-692 Amended April 7, 1950 CAR 4a 2351, 2355 and up, 2356A, 2357A and up, and 8277-1 2344, 2345, 2347, 2349, through 8277-40.

CAR 04 2325, 2327, 2339, 2340, J3P 695 Amended November 1, 2342, 2344, 2345, 2347, 1943 2349, 2351, 2355 and up 2325, 2327, 2340, 2342, (Army L-4C), J3L-65S J3L, J3L-S, J3L-65 A-698 Amended April 7, 1950 CAR 4a 2351, 2355 and up, 2356A. 2357A and up, and 8277-1 2344, 2345, 2347, 2349, through 8277-40 Limitations and Conditions: continued:

2. This modification is to be maintained in accordance with STC SA00270BO Installation Instructions and Instructions for Continued Airworthiness, dated June 24, 2009, or later FAA-approved revisions.

3. Compatibility of this design change with previously approved modifications must be determined by the installer.

The specifications shown on the Approved Type Certificate for the eligible Piper J3 series aircraft remains applicable except:

Engine: Teledyne Continental A-65-8, A-65-8F, A-65-9 Engine Limits: All operations, 2300 r.p.m. (65 hp) This certificate may e transferred or made available to third persons by licensing agreements in accordance with 14 CFR 21.47. The ST's supporting documentation (drawings, instructions, specifications, flight manual supplements, etc.) is the property of the STC holder.

FAA 8110-2 (10/24) Page ___ of ___ Propellers: A. Sensenich fixed pitch metal model M74CK. +21 lb. (-53) Static r.p.m. at maximum permissible throttle setting:

(a) Landplane: Not over 2250, not under 2050.

(b) Seaplane: Not over 2250, not under 2100 (Edo 92-1400 or 60-1320 floats No additional tolerance permitted.

Diameter: Not over 74 inches, not under 72.5 inches.

or B. Beech (Roby) R-002-205 blades (A-65-8 and A-65-9 only) +15 lb. (-51) Pitch setting at 27 in. station: Low 13°, High 18.5°.

or C. McCauley 1A90CF or 1B90CM +26 lb. (-51) Limits: Static r.p.m. at maximum permissible throttle setting:

(a) Landplane and skiplane: Not over 2250, not under 1950.

(b) Seaplane: Not over 2250, not under 2050 (Edo 92-1400 or 60-1320 floats only) No additional tolerance permitted.

Diameter: Not over 74 inches, not under 72.5 inches.

or D. Wood (fixed pitch). +9 lb. (-51) Limits: Static r.p.m. at maximum permissible throttle setting:

(a) Landplane and skiplane: Not over 2300, not under 1950.

(b) Seaplane: Not over 2250, not under 1930 (Edo 92-1400 or 60-1320 floats only) No additional tolerance permitted.

Diameter: Not over 81 inches, not under 69.7 inches.

Engine: Teledyne Continental A-75-8, A-75-8F, A-75-9 Engine Limits: All operations, 2600 r.p.m. (75 hp)

Propellers: A. McCauley 1A90 or 1B90 +21 lb. (-53) Static r.p.m. at maximum permissible throttle setting:

Not over 2425, not under 1950. No additional tolerance permitted.

Diameter: Not over 70 inches, not under 68.5 inches.

or B. Wood (fixed pitch) +9 lb. (-51) Static r.p.m. at maximum permissible throttle setting:

or C. Sensenich fixed pitch metal model M74CK-2. +21 lb. (-51) Static r.p.m. at maximum permissible throttle setting:

Not over 2440, not under 2340. No additional tolerance permitted.

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Engine: Teledyne Continental C-75-8, C-75-12 Engine Limits: All operations, 2275 r.p.m. (75 hp)

Propellers: A. McCauley 1A90 or 1B90 +21 lb. (-53) Static r.p.m. at maximum permissible throttle setting:

Not over 2100, not under 2000. No additional tolerance permitted.

Diameter: Not over 74 inches, not under 72.5 inches.

or B. Wood (fixed or adjustable pitch) +9 lb. (-51) Static r.p.m. at maximum permissible throttle setting:

Not over 2100, not under 2000. No additional tolerance permitted.

Diameter: Not over 74 inches, not under 72.5 inches.

Engine: Teledyne Continental C-85-8, C-85-12 Engine Limits: Takeoff, 2575 r.p.m. (85 hp) All other operations, 2525 r.p.m. (80 hp) Fuel: 80 minimum octane aviation gasoline Oil capacity: 4 ½ qts.

Propellers: A. Wood (fixed pitch) +9 lb. (-51) Static r.p.m. at maximum permissible throttle setting:

Not over 2350, not under 1950. No additional tolerance permitted.

Diameter: Not over 72 inches, not under 70 inches.

or B. McCauley 1A90CF or 1B90CM +21 lb. (-53) Static r.p.m. at maximum permissible throttle setting:

Not over 2550, not under 1950. No additional tolerance permitted.

Diameter: Not over 71 inches, not under 68.5 inches.

or C. Koppers F200/00-72D +30 lb. (-51) Eligible on landplane or skiplane only.

Parts List Assembly No. 4369.

Low pitch setting 12.7° measure at 24 in. station.

Static r.p.m. at maximum permissible throttle setting:

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Diameter: Not over 72 inches, not under 70.5 inches.

Installation and operation must be accomplished in accordance with Koppers’ “Installation Procedure and Operating Limitation” No. 29.5.

or D. Sensenich fixed pitch metal model M76AK-2. +24 lb. (-53) Static r.p.m. at maximum permissible throttle setting:

Not over 2550, not under 1950. No additional tolerance permitted.

Diameter: Not over 74 inches, not under 72.5 inches.

Engine: Teledyne Continental C-90-8F, C-90-12F Engine Limits: Takeoff, 2475 r.p.m. (90 hp)

All other operations, 2375 r.p.m. (80 hp) Fuel: 80 minimum octane aviation gasoline Oil capacity: 5 qts.

Carburetor heat must be modified to provide required heat rise. (Comply with Piper Service Bulletin 84) Propellers: A. McCauley 1B90, 1A90 +21 lb. (-53) Static r.p.m. at maximum permissible throttle setting:

(a) Landplane: Not over 2300, not under 1950.

(b) Seaplane: Not over 2300; not under 2100 (Edo 92-1400 or 60-1320 floats only).

No additional tolerance permitted.

Diameter: Not over 71 inches, not under 69.5 inches.

or B. Wood (fixed pitch). +9 lb. (-51) Static r.p.m. at maximum permissible throttle setting:

(a) Landplane: Not over 2300; not under 1950.

(b) Seaplane: Not over 2300; not under 2100 (Edo 92-1400 or 60-1320 floats only).

No additional tolerance permitted.

Diameter: Not over 76 inches, not under 70 inches.

Maximum weight: 1220 lbs. landplane, 1300 lbs. seaplane.

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