MT-Propeller Many Firsts

Many Firsts



MT-Propeller - decades of Innovation.



MT-Propeller, when founded in 1981 by Gerd Mühlbauer, always had the aim to make propeller powered traveling more comfortable. Gerd Mühlbauer, an engineer and test pilot, always focused on the customer’s needs, like all his management and engineering staff is doing.

With this vision, MT-Propeller created many firsts in history for the General Aviation World:

In 1981 the worldwide first electric constant speed propeller was created and certified. It improved performance of motor gliders and light aircraft.

Looking for more options and different airplanes, MT-Propeller created more than 27 worldwide certified propeller models until now. These propeller models can be combined with more than 220 aerodynamic blade designs to make a custom fit for every application.

This has already led to more than 210 STCs worldwide to retrofit existing airplanes with MT-Propellers.

Now MT-Propeller is already supplying 90% of all new European aircraft and 30% of the new US aircraft using a piston or turbine engine with the 2,3,4,5 bladed propellers.

In year 2004 the first 5 bladed full feathering prop with reversing was certified on the Shorts Skyvan SC-7.

In the turbine powered world many Firsts can be claimed again from MT-Propeller:
First 5 bladed certified composite turbine powered propeller on:


  • TBM 700/850 Series, the fastest in production single engine airplane Pilatus PC12, more than 150 are flying already with MT-Propellers.
  • King Air 90/200/300 Series with the low noise, improved overall performance, MT 5 bladed propellers.
  • The new Blackhawk PT6A-67A King Air 350, pushing this aircraft with MT 5 bladed props to 340+ KTAS and making it the fastest conventional turbo prop available today
  • Cessna 425 Series
  • Piper Cheyenne PA31T and T1
  • Piper Cheyenne PA42-1000, flying 360 KTAS with the MT-Propellers
  • Cessna 208 Caravan and many more.

With more than 2500 propellerturbine powered aircraft converted to the MT-Propeller system, MT made the 5 bladed prop an industry standard, leading the innovation and made competitors to follow.
Lower noise, lower vibration for a more comfortable ride with lower fatigue for pilots and passengers combined with a better take off, faster climb and cruise was the result after 35 years research in propeller design.


… and the story goes on.




October 2016

New MT-sevenblade Prop
Watch the video of the first testflight



ANOTHER BIG FIRST, which we believe will change the General Aviation Propeller Powered Aircraft in the near future, happened in October 2016.

MT-Propeller egineers and test pilots flight tested the WORLDs first 7 bladed propeller used on a General Aviation Airplane.

The test flights, 8 flights in total with 5 hrs flight time contained a functional test, performance test and noise test with very promising results. In an uneventful test flight, the entire system performed on the PT6A-135A turbine installed in a Piper Cheyenne like used already for many years.

MT-Propeller is in technical talks with turbine engine manufacturers, to work together for the certification and customizing the gear box to get the best out of the UNDUCTED PROP FAN, how MT likes to call the 7 bladed prop.

More information on the MT-Propeller systems and also a sound file of the fly by with the WORLDS FIRST 7 bladed prop can be requested from techsupport@mt-propeller.com


March, 2019

Testairplane Cheyenne with 9-blade MTV-39


Worlds first 9 bladed prop started the flight test program
on March 11th 2019 and initial results are very promising.

Function, Handling and Operation on the aircraft is like those props have been in service already for years.

This new development for low noise, high performance future airplanes driven by electric powered engines, turbine engines or geared piston engines for propellers with low RPM.

Depending on propeller driven airplane designs, top speeds of up to 430 KTAS are realizable with such a installation, by reducing at the same time the fuel consumption to a turbo prop from a jet.

MT-Propeller proves with this milestone that the innovation in propeller driven airplanes is just at the beginning.

Flying a Jet comfort airplane powered with props combined with the lowest fuel consumption becomes a near future.

Whatch the testflight Video
220 KTS with 1700RPM and max Torque fly by MTV-39