Latest News

We are pleased to announce that ANAC TCDS No. EH-1999T07 has been extended to include additional Power (597 kW / 800 HP) and RPM ratings (2080 RPM) for our 108-inch 3-blade propeller V508 type series.

This TCDS update further expands the approved operating range of the propeller and provides our customers with greater flexibility in aircraft applications.

ANAC TCDS No. EH-1999T07

MT-Propeller Entwicklung GmbH received the EASA STC No. 10090953 for the installation of the 4-bladed AVIA Propeller AV-804-1-E-C-F-R(P)/CFR275-446 on the Air Tractor AT-502( )
Models: AT-402, -402A, -402B, AT-502, -502A, -502B, -503A powered by the propeller turbines.
Pratt & Whitney PT6A-( ) for

AT-402: PT6A-15AG, -27, -34, -34AG
AT-402A: PT6A-11AG, -11, -20, -20A, -20B, -21
AT-402B: PT6A-15AG, -27, -34, -34AG
AT-502: PT6A-15AG, -27, -34, -34AG, -34B, -36
AT-502A: PT6A-140AG
AT-502B: PT6A-15AG, -27, -34, -34AG, -34B, -36
AT-503A: PT6A-34, -34AG

The FAA STC is in progress.

The 4-bladed AVIA Propellers on the AT-502 series provide equal or better performance data compared with the Legacy STC 4-blade propeller, increase of Static Thrust up to 430 lbs for PT6A-34AG engine and up to 200 lbs for PT6A-140AG engine compared to the existing Legacy 4-blade propeller STC, RPM reduction from 2200 RPM to 2080 RPM for applicable engines for reduced noise and higher efficiency...

Avia AG-803 Ground-adjustable propeller as a source of high-speed airflow for the Dynamic Wind Generator.

We thank De Meyer for the opportunity to participate in their project.

We thank everyone for visiting this wonderful aviation event and for their interest in Czech aviation.

We are proud to be a part of it.

We are pleased to announce that EASA TCDS P.028 has been extended to include additional Power (597 kW / 800 HP) and RPM ratings (2080 RPM) for our 108-inch 3-blade propeller V508 type series.

This TCDS update further expands the approved operating range of the propeller and provides our customers with greater flexibility in aircraft applications.

EASA TCDS P.028

We would like to thank everyone who visited our Avia Propeller booth at Aviatická Airshow 2026.

We are very pleased to spark interest in the beauty of engineering and to motivate and inspire young people toward potential career paths.

We also thank all our former colleagues from Avia/Czech engineering, because it is only thanks to their work that we can continue.

Avia Propeller received the Type Acceptance letter
of the EASA Type Certificate EASA.P.031 for the 5‑blade hydraulic constant speed propeller AV-725 by Colombian Civil Aviation Authority (AEROCIVIL).

We would like to thank everyone who visited Aero Friedrichshafen 2026.

Avia Propeller is proud to be part of the aviation community.

Visit us at the Letňany Airport Day on Saturday, September 5, 2026.

We are not only working on new propellers, but we also support historic propellers, such as the V410, which was manufactured by Avia more than 60 years ago and is still in service on the beautiful Aero 45S from Estonia.

We thank all the owners, pilots, technicians and others who keep these aviation legends in airworthy condition and allow other people to see them flying in the sky.

We are proud to announce the delivery of 20,000th Propeller Governor to our valued customer.

We would like to thank all our customers for being part of our journey. We are looking forward to achieving many more milestones together.

Thank you for the award from Aircraft Industries company (www.let.cz), which we greatly appreciate.

We would also like to thank all our suppliers and cooperating companies, without whom we would not have received this award.

THANK YOU!

We would like to thank everyone who visited the Czech Aerospace booth at the Dubai Airshow 2025.

Avia Propeller is proud to be part of the Czech Aerospace industry.

We would like to thank to all visitors of AG Aviation Expo 2025 in Reno. Especially to those running our propellers on their Ag aircraft.

We are honoured to be part of the Ag Aviation community.

As the market requires more propeller options, especially for the AT-402/-502 series, MT-Propeller – and its sister company, Avia Propeller – designed and STC’ed the Avia V508H/108/A propeller model. This propeller has a steel hub and aluminum blades that can be removed in-field without disassembling the propeller hub. This makes in-field blade replacements due to foreign object damage (FOD) easier.
The propeller hub and blade combination has been proven in service with more than 3,000 Avia propeller systems, especially operated in remote areas.

The weight of the Avia Propeller is not higher than the standard aluminum propellers certified for this application.

The MT-Propeller group integrated Avia Propeller in 1999 and manufactures successfully propeller systems for the LET-410 aircraft and AG systems. Beside this, Avia Propeller is approaching more than 20,000 manufactured governors and controls for piston and turbine applications.

Avia Propeller not only designs and manufactures propellers and propeller speed governors, but also pressurized oil sources (POWERPACKS) for very severe operating conditions, such as those found in hovercraft.

If you are interested in a „POWERPACK“ for your project, please contact us.

It is 2-blade automatic variable pitch propeller V503A with a hydraulically operated blade pitch change mechanism.
The propeller is fully automatic, it means that it does not need any pilot intervention for the operation.

The first propeller model V503 was certified by the Czech Aviation Authority in 1964, it currently has an EASA certificate and is validated in Canada.

The propeller is used on the Czech aerobatic ZLIN "Trener" aircraft with a single piston six-cylinder M137 engine.

Right-hand propeller model V503AP, instead of left-hand V503A, was developed for Cessna 172N, see STC.

We thank the ZLIN aircraft operators for their care of these beautiful aircraft and for keeping them in the air.

The Avia Propeller 4-blade hydraulic constant speed propeller AV-804 with reversing and feathering features is now type certified by the FAA.
The AV-804 is primary developed for the use on the Agriculture aircraft with PT6A series and GE H-series.

Hub and blades manufactured from forged aluminum alloy.
On-wing individual blade removal reduces maintenance cost and time.

FAA TCDS P00120IB

Avia Propeller received the validation of the EASA TC P.031 for the 5‑blade hydraulic constant speed propeller AV-725 by ANAC Brazil.

Avia Propeller received the Type Acceptance letter

of the EASA TC P.031 for the 5‑blade hydraulic constant speed propeller AV-725 by Civil Aviation Authority of Malaysia.

Proven, reliable, modular, cost effective hydraulic constant speed propeller perfectly suited for commuter operation in all weather conditions including icing.

We would like to thank everyone who visited the booth of Association of the Czech Aerospace Industry at Aero Friedrichshafen 2025.

Avia Propeller is proud to be part of this Association that brings together Czech companies involved in the aerospace sector.

FAA TC update for 3-blade V508 propeller with a diameter of 108 inch

FAA TCDS P21BO

The propeller is certified for various HP, RPM, diameter combinations to cover a wide range of PT6A-( ), M601( ), H7( ), H8( ) series turboprop engines.

Just a few selected combinations:

108 / 106 inch / 750 HP / 2200 RPM
108 / 106 inch / 867 HP / 1900 RPM
108 / 106 inch / 850 HP / 2000 RPM

EASA TC for AVIA single-acting 4-bladed AV-804 propeller with 108 inch diameter for the use on the AG aircraft with the PT6A-140AG

• The power rating is certified up to 867 HP at 1900 RPM
• Robust structural design suited for AG operation
• Hub and blades manufactured from forged aluminum alloy
• On-wing individual blade removal reduces maintenance cost and time

EASA TCDS P.020

Another set of model 84 propeller blades was delivered to our customer by the end of 2024.

This blade model 84 was designed especially for the 3-bladed 84-inch diameter V508 propeller, Walter M601 series engines, and Lancair Propjet and Turbine Legend aircraft.

A total of 411 of these blades have already been delivered to our customers.

We thank these customers for operating our propellers.

The propeller has a high strength steel hub and aluminum alloy blades. Robust design combined with aerodynamic and static-dynamic features ensure a great and cost-effective solution for your aircraft.

The 3-bladed V508 series propellers have logged millions of flight hours worldwide is avialable for both Walter M601/GE H75 and PT6A series engines.

Optional de-icing system is available as well as variety of surface finish of blades and spinner including mirror polish.

One of our customers shared a proof of the propeller durability with us:

EASA TCDS P.028, FAA TCDS P21BO

Avia Propeller received the validation of the EASA TC P.031 for the 5‑blade hydraulic constant speed propeller AV-725 by DGAC Chile.

The Avia Propeller is honored to be the manufacturer of aluminium propeller blades for the Hawker Tempest MK.II, MW763. Thanks for the opportunity to do a small part in bringing this amazing aircraft back to the skies, to the delight of many aviation fans.

The blades are made in accordance with original drawing, dated 1943. Each of the four blades weighs 33 kg (73 lbs) and is 1.8 metres (5.9 ft) long.

We would like to thank everyone who participated in the amazing celebration of 100 years of Letňany Airport on Saturday, September 7.

The interest of visitors in Avia Propeller amazed us and we look forward to meet you at another festival of Czech aviation.

In August 2024 we delivered new blades 6903A-10, which we manufacture under license from Hamilton Sundstrand.

The blade 6903A-10 is designed for the Hamilton propeller 43E60 and Canadair CL-215 aircraft.
One blade weighs 52 kg (115 lbs) and the length of one blade is 2.1 metres (6.85 ft).

Special procedures such as shotpeening of the shank taperbore, profile part and also coldrolling of the blade shank radius are used in the manufacturing process.

Thank you so much to all partners who helped us complete these blades for this great Canadair CL-215 aircraft.

We are happy to help keep these fire fighting aircraft in the sky to protect lives and property around the world.
We are working on more blades :-)

Thank you for visiting us at the Czech Aviation Day 2024 at LKVO where the AV-725-1-E-C-F-R(W)/CFR230-433 propeller was on display.

Our thanks to the participants of the 11th Reunion of Czechoslovak Aircraft and all the pilots who decided to fly Avia propellers, we appreciate it.

The 320th propeller of the AV-725 series was produced in January 2024.

It is propeller AV-725-1-E-C-F-R(W)/CFR230-433 which is used on Czech L 410 UVP-E20 commuter aircraft fitted with two H80-200 turboprop engines.

This propeller model was EASA certified in 2011 and is validated in the USA and many other countries.

Proven, reliable, modular, cost effective hydraulic propeller perfectly suited for commuter operation in all weather conditions including icing.

Avia AV-844 propeller and P-9 series propeller governor tested on MGM COMPRO 400 kW Electric Propulsion System for Aviation application.