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Hartzell explorer composite 3 blade
- Thread starter cjjohns79
- Start date
TParker
Well Known Member
It will not directly transfer/bolt up between the two propellers, it will definitely need to be modified. I'm not sure how feasible and cost effective these mods would be, and whether you want to expend the effort is up to you.
If you do want to tackle it, here's a few things to consider. The WW300 hub is ~1.2" longer between the flange and blade center so this means moving the bulkhead closer to the blades and you'll probably have some large gaps on the forward side of the dome cutouts unless you fill them back in. I'd suggest starting with the bulkhead template on page 4-4 of Manual 193, Volume 3. After that, I think the best way to do the mods would be to use the 3D printed parts I've supplied here to make a mockup of the Explorer.
The forward bulkhead will also need to be addressed, and that will take some figuring. The diameter required to attach to the Explorer is larger than that for the WW300.
This is extremely important: You will need a special mounting kit that incorporates a hat bushing because the WW spinner bulkhead is composite. The spinner attaches to the Explorer with the same bolts that hold the hub together, you must not put a composite bulkhead in that load path. It will crush the composite, and over time you will lose the preload in the bolt which is safety critical.
If you do want to tackle it, here's a few things to consider. The WW300 hub is ~1.2" longer between the flange and blade center so this means moving the bulkhead closer to the blades and you'll probably have some large gaps on the forward side of the dome cutouts unless you fill them back in. I'd suggest starting with the bulkhead template on page 4-4 of Manual 193, Volume 3. After that, I think the best way to do the mods would be to use the 3D printed parts I've supplied here to make a mockup of the Explorer.
The forward bulkhead will also need to be addressed, and that will take some figuring. The diameter required to attach to the Explorer is larger than that for the WW300.
This is extremely important: You will need a special mounting kit that incorporates a hat bushing because the WW spinner bulkhead is composite. The spinner attaches to the Explorer with the same bolts that hold the hub together, you must not put a composite bulkhead in that load path. It will crush the composite, and over time you will lose the preload in the bolt which is safety critical.
