propeller for rotax447 - ETLB Squawk Forums (2024)

hi everybody
what kind of propeller can be used for a minimax with a rotax 447?
thanks

I use a 62" Powerfin ground adjustable, recommended by Powerfin for the Rotax 447.Works great, no complaints. I originally had a Tennessee prop 60X36.Great climb prop, but my EGT's were way to high cruising with it.Harold

Here is how it looks on a aircraft. It looks, sounds and works equally good.

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Curt, for us the 1600 mm two blade is the best one. You might read my findings at Thrust test topic. I will finish my gear change and instrument panel refresh with dual EGT and CHT-s than I go for the props. But its closer for me from Ukraine.Shipping in the US from here is about USD 80-100 or so by post.
If you are after wood propellers, my friend makes them here, I can ask him to make one for you. Cost is USD 180 + shipping , you probably end up around 260 or so.

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62" Powerfin ground adjustable, same as Harold's. I got 230 lbs force on the pull test.

Those with the powerfin prop, how many degrees did you dial in to get 6250rpm? Thanks.

That would be interesting if anyone could tell you. You take your prop, tie down your plane, warm up the engine and you adjust set it until you cant overrev your engine with full throttle. Set below the max rpm by 250-300 rev. If in flight you see that there is more room for you to add 1-2-3 degrees than you re adjust it.

Does anyone have a new/used prop for a 447 that they would like to sell ?

I am about to order from Lugoprop from Ukraine one for my Hirth, but since my hirth is belt drive its just the opposite what you guys need. For sure they can ship to US. 400 USD os not bad price, you will get only two blades without hub from Powerfin for that price.

Try that in flight and if you feel you have enough runway and you are not happy with your cruising rpm(too high) set it to 6100 on ground full throttle. Youll probably will get 6300-6350 during takeoff and thats still OK.
Also if that overspins during takeoff, that aint no good either. Lower the rpm and you farther you are from max is better. Max torque of 447 is at 6000 rpm so reving it up muchbeyond that is not really economical. Plus according to the fuel graph of this engine its the same fuel consumption over 6500, meaning if you overrev this engine, at higher RPM will get the same amount of fuel (meaning cooling and lubrication) . At higher rpm that could lead to overheating. Watch your CHT and EGT too.
I usually set my props according the fields I have , if I really need short takeoff than pitch goes lower but definately not over the max rpm.

For the very same reasons my Hirth 2702 revs only 5050 on the ground (max 5500) and my Simonini Victor 2 plus revs only 5800 (max 6200). Question is good engine choice for load/aircraft. And 447 or Hirth 2702 is more than enough for Mini/Himax. I am only 82 kgs (170 lb).
200 ft off ground is almost STOL performance Our law says here that your engine must be good to get your plane in 300 m (900ft ) over 15 m (45ft) obstacle.
Peter

I just did that on the Bingo 4 days ago. I bought Facet 40106.

Anybody ever used a prop from ARROWPROP ?

You wanna put any of these onto your plane ??? http://www.arrowprop.com/comp.htm
I am paying for my Lugoprop composite 3 blader today, I will give you a thrust test report as soonas I get it.
Peter

I just came across the web page and was curious if anybody had used one. They do have a 60x36 prop for the 447 rotax.