USS NAUTILUS SSN-571. 5-Bladed Screw Data (Original, before the 7 bladed screw use)

[QuarterMaster]

With many thanks to Bill "The COB" Lambing for obtaining this data from these actual screws displayed at The Submarine Force Museum, Groton CT.

Scale as req’d for your build.

For the record, getting ACTUAL dimensions on a Nuke boat screw?? As rare as hens teeth.

Nameplate Data:
Dwg. No. SSN571-S4400-867098, Rev. E
Applicable to SSN-571 & SSN-575
Diameter- 9 feet
Pitch at .7R-6FT 11.13IN
MFG- Phila NSY
Weight- 4100lbs.
Matl-NiAlBrz

5 Blades
Hub Dia.- ~20"
Blade length- ~43"
Blade width at root- ~22"
Width at mid-blade-~29"
Length of flat at tip-15" ~ CL of Radius
Tip Corner Radius- ~5 3/4"
Hub LOA- ~52"
Dunce Cap diameter at base seam- ~18"

Repaired and balanced in July 1976.

[He Who Shall Not Be Named]

That's excellent dope. Wish I had it at hand when I made the wheels for this 1/48 DeBoer Nutless.

[SubSteve]

Look at this lovely stern, hubba hubba!

[Albacore 569]

WOW LOVE it! I was thinking too bad we couldn't see the 7 bladers and scroll down and volla!

Save those Four bladers Dave, if you build a Skate.

[wlambing]

Nice blade shaping on the 4 petal flowers! Raebosch (?) makes some nice 7 -blade scimitars. Bob Harris put them on the Skate Class I got from his estate. I miss Bob!

[SubSteve]

Another time, separate dry-docking with the 7 bladed wheels covered.