Jetprop PA46T with MTV-27
...climbrate is significantly better
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MT 5 Blade Prop
On July 10th, N46PW was equipped with the new MT-five-blade-Prop in Straubing as the first N registrated Jetprop world wide.
Only a few days earlier, the FAA had launched the STC for US registrated Jetprops P46T.
Now we understand, why already more than 100 (one hundred) Pilatus PC12 have been converted with that high tech part.
Our impression after roughly 20 hours of light:
1. during start up procedure, 15% N1 is instantaneously reched to add fuel (much quicker than with the four blade prop), 17% N1 with the same battery voltage as before is no big deal, i.e. battery load goes significantly down, air intake flow is higher, start up temperatur goes down.
2. ground roll distance is shorter
3. climbrate is significantly better
4. outside noise voulme is reduced, (now 68dB instead of 70,5 dB before)
5. in accordance with the updated noise certificate: landing fees go down
6. in the rear cabin is comfortable quiet, whereas we in front still use our active noise reduction head sets, but with them in use, it s deadly silent
the only disadvantage: smoking is now forbidden around the propeller - it s made out of wood.
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MT 5 Blade Prop
On July 10th, N46PW was equipped with the new MT-five-blade-Prop in Straubing as the first N registrated Jetprop world wide.
Only a few days earlier, the FAA had launched the STC for US registrated Jetprops P46T.
Now we understand, why already more than 100 (one hundred) Pilatus PC12 have been converted with that high tech part.
Our impression after roughly 20 hours of light:
1. during start up procedure, 15% N1 is instantaneously reched to add fuel (much quicker than with the four blade prop), 17% N1 with the same battery voltage as before is no big deal, i.e. battery load goes significantly down, air intake flow is higher, start up temperatur goes down.
2. ground roll distance is shorter
3. climbrate is significantly better
4. outside noise voulme is reduced, (now 68dB instead of 70,5 dB before)
5. in accordance with the updated noise certificate: landing fees go down
6. in the rear cabin is comfortable quiet, whereas we in front still use our active noise reduction head sets, but with them in use, it s deadly silent
the only disadvantage: smoking is now forbidden around the propeller - it s made out of wood.
Michael Offermann
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