NR Propeller

[Delta Whisky]

200 lb in, https://goodcalculators.com/torque-c...on-calculator/

[little rocket]

I just received my prop from NRprop today and looks great. Installing on my O-320 160 HP lycoming. Roman says its good for the HP.

Any body out there have a starting point for the pitch?
Torque on the bolts?
Ken

Hi I would like to get some info on what prop you got from Roman for the 160 HP lycoming ,tried to send you a PM but says your PM box is full and you need to clear it to receive new message.

[KenZ]

Hi I would like to get some info on what prop you got from Roman for the 160 HP lycoming ,tried to send you a PM but says your PM box is full and you need to clear it to receive new message.

This is what I got
SR118-2024mm-(3 blades, hub SAE-2-101,6 rotax) Carbon propeller= 1100 euro + 130 euro shipping
Also thanks on the mail box..... cleared old messages.
Ken

[Drowosek]

This is what I got
SR118-2024mm-(3 blades, hub SAE-2-101,6 rotax) Carbon propeller= 1100 euro + 130 euro shipping
Also thanks on the mail box..... cleared old messages.
Ken

Please clarify, how do you use a 2m diameter propeller on a 2800 rpm engine?
The circumferential velocity in SI system reaches 293 m/s.

We mourn with you, colleagues. It is a great pity that I did not have time to ask this question....

[klamberth27]

Received my new prop yesterday. It's an NR SR 106 2 blade scimitar style with a metal leading edge.
Looks nice. Low weight is impressive, 9.9 lbs. all up weight including bolts, backing plate and spinner.
Not including the 2" prop extension. The pitch tool is set at 16 deg. and can be adjusted plus or minus
7 deg.

It will be awhile before I can do any testing

Air Trikes re-brands the Luga under "Kool", and some refer to the luga as an "NR prop", presumably
the initials of the inventor (Nick Roman)
So:
LUGA = KOOL = NR Prop.

Propeller.jpgpitch tool1.jpgPitch tool +7 or - 7 degrees.jpgPropeller total weight.jpg

I bought the NR SR118 and mine shows 17 degrees. Is 17 degrees the the large longer middle line and then you can go plus or minus 1 degree at a time?

[KenZ]

Also 215 Inlb for prop to engine hub seams awful light torque.

[Shadowrider]

I would recommend calling saber bolts in Texas and changing out the bolts that came with the NR prop. Prop is great but the hardward I received was not aircraft grade bolts. I was told and torque to 180inch pounds, or 15ft lbs. Don't want to over torque as you are squeezing the prop.

[klamberth27]

Thanks! That is helpful

[bbs428]

Exactly correct.
The large middle line is the 17deg (in your case) (mine is 16 deg) and you can add or minus degrees from that setting.

[klamberth27]

Perfect! Thanks for the help!