Aerospace Technologies (On following models with metal propellers only operated at 2900 RPM or lower Per STC SA812NE, on following aircraft:N22B,N24A HC-A3VF-7,-7B,)
Air Tractor (On following models with metal propellers only operated at 2900 RPM or lower Per STC SA812NE, on following aircraft: AT-302,-400 HC-B3TN-5C,-5M,-3D,)
Ayres (On following models with metal propellers only operated at 2900 RPM or lower Per STC SA812NE, on following aircraft: S2R-T11 HC-B3TN-3C,-3D,)
British Aerospace (On following models with metal propellers only operated at 2900 RPM or lower Per STC SA812NE, on following aircraft: HP.137 MK.1 (with STC SA2293SW) HC-B3TN-3D,)
Cessna (On following models with metal propellers only operated at 2900 RPM or lower Per STC SA812NE, on following aircraft:441, HC-B3TN-5E,-5M,)
Construcciones (CASA) (On following models with metal propellers only operated at 2900 RPM or lower Per STC SA812NE, on following aircraft: CASA C212-100 Aviocar HC-B4TN-5EL,)
deHavilland (On following models with metal propellers only operated at 2900 RPM or lower Per STC SA812NE, on following aircraft:DHC-2MK.III HC-B3TN-3,-3B,-3BY, DHC-6-300 HC-B3TN-3(D)(Y)
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Embraer Empresa (On following models with metal propellers only operated at 2900 RPM or lower Per STC SA812NE, on following aircraft:EMB 110 series HC-B3TN-3C,-3D,)
Fairchild Aircraft (On following models with metal propellers only operated at 2900 RPM or lower Per STC SA812NE, on following aircraft:SA226-AT,SA226-T HC-B3TN-5, SA226-TC HC-B3TN-5, SA226-TC HC-B4TN-5,)
Gulfstream (On following models with metal propellers only operated at 2900 RPM or lower Per STC SA812NE, on following aircraft:Aero Commander 690,690A/B HC-B3TN-5FL,)
Israel (On following models with metal propellers only operated at 2900 RPM or lower Per STC SA812NE, on following aircraft:101, 101B Arava HC-B3TN-3D,)
McKinnon (On following models with metal propellers only operated at 2900 RPM or lower Per STC SA812NE, on following aircraft: (Grumman Goose) G-21E & G-21G HC-B3TN-3DY,)
Mitsubishi (On following models with metal propellers only operated at 2900 RPM or lower Per STC SA812NE, on following aircraft:MU-2B,MU-2B-10 HC-B3TN-5, MU-2B-15,-20,-25,-26,-30,-35,-36 HC-B3TN-5,)
Pilatus Aircraft (On following models with metal propellers only operated at 2900 RPM or lower Per STC SA812NE, on following aircraft:PPC-6/B-H2 & B1-H2 HC-B3TN-3C, PC-6/C-H2 & C1-H2 HC-B3TN-5C,)
Piper (On following models with metal propellers only operated at 2900 RPM or lower Per STC SA812NE, on following aircraft:PA-31T,PA-31T1 HC-B3TN-3B, PA-42,PA-42-720 HC-B3TN-3B,-3K,)
Raytheon (On following models with metal propellers only operated at 2900 RPM or lower Per STC SA812NE, on following aircraft: A100 series HC-B4TN-3,-3A, B100 HC-B4TN-5C,-5F, 200 Series HC-B3TN-3G,-3N, JRB-6 HC-B3TN-5C,, On following models with metal propellers only operated at 2900 RPM or lower Per STC SA812NE, on following aircraft:D, E18 series, C-,TC-45 series HC-B3TN-5C, T-34C HC-B3TN-3H, 65-90 series HC-B3TN-3B,-3M,-2B, B90,C90,E90,H90 HC-B3TN-3B,-3M, On following models with metal propellers only operated at 2900 RPM or lower Per STC SA812NE, on following aircraft: F90 HC-B4TN-3A,-3B, 99, A99 series HC-B3TN-3B, C99,100 HC-B3TN-3B,-3M,)
Short Brothers (On following models with metal propellers only operated at 2900 RPM or lower Per STC SA812NE, on following aircraft:SC-7 Series 3, Variant 200 HC-B3TN-5, SC-7 Series 3 Variant 200 (with STC SA02059AK) HC-B4TN-5)
