> ## Documentation Index
> Fetch the complete documentation index at: https://docs.ntop.com/llms.txt
> Use this file to discover all available pages before exploring further.

# Marine R5: return-loop propeller and drive

> AI context for Marine R5: return-loop propeller and drive. Not linked in navigation.

> This page is for AI assistant context only. To use this package, visit [community.ntop.com](https://community.ntop.com/#/detail/marine-return-loop-propeller-r5).

> **Community submission — not verified by nTop.** This package was submitted by an outside community member and has not been reviewed or verified by nTop. Treat its accuracy, safety, and compatibility claims with appropriate caution.

## Summary

Inspect continuous leading-edge return loops, independent root trims, a finished aft shoulder, and separate ogive and drive components.

## Package Details

| Field | Value |
| - | - |
| **ID** | `marine-return-loop-propeller-r5` |
| **Type** | Notebook |
| **Author** | nTop |
| **Version** | 0.1.0 |
| **nTop Version** | 6.1 |
| **Domain** | Mechanical |
| **Application** | Geometry |
| **Complexity** | Advanced |
| **Tags** | `notebook-api`, `parametric`, `modeling`, `geometry`, `ai-assisted` |
| **License** | MIT |
| **Verified** | No |

***

**Built with Astra.**

Inspect continuous leading-edge return loops, independent root trims, a finished aft shoulder, and separate ogive and drive components.

<img src="https://mintlify.s3.us-west-1.amazonaws.com/ntopology/community/packages/bradrothenberg/cover.png" alt="Marine R5: return-loop propeller and drive" />

R5 retains physical leading-edge identity through the return and applies a finishing cut after the blade/barrel blend. The saved-graph orientation check covers seven trim cases with 121 stations each. The drive is a custom nominal interface. Marine performance and production fit are not qualified by these geometry checks.

## Installation and use

1. Download the package files and keep them together. The community download serves the full native notebook from public Git LFS storage. If cloning with Git, run `git lfs pull` to retrieve the model.
2. Open `marine-return-loop-propeller-r5.ntop` in the matching licensed nTop build.
3. Save a working copy before editing. Expand the relevant section and change one control at a time.
4. Inspect the rebuilt bodies and block states before accepting the changed model.

Recorded native build: **6.1.0-rc 42926**. The catalogue version field cannot encode the custom build number. Public release compatibility has not been re-tested. The application and license are not included.

Export destinations use filenames instead of source-workstation paths. Set your own output folder before enabling or running an export. Geometry inputs do not require external files.

## Inputs and outputs

| Direction | Contents |
| - | - |
| Input | Forward root twist trim; Aft root twist trim; nominal drive dimensions |
| Output | Marine screw, ogive, cartridge, reference shaft and retention hardware |

Named scalar controls include `Forward root twist trim`, `Aft root twist trim`, `CHECK Cartridge wall`, `CHECK Cartridge spline opening`, `CHECK Ogive wall`, `CHECK Ogive cavity`, `CHECK Barrel material`, `CHECK Open barrel bore`, `CHECK Foil inside station 12 x 0.4`, `CHECK Foil outside station 12 x 0.4`, `CHECK Foil inside station 12 x -0.4`, `CHECK Foil outside station 12 x -0.4`. Some are computed values; inspect their upstream construction before changing them.

## Files

* [marine-return-loop-propeller-r5.ntop](marine-return-loop-propeller-r5.ntop)

## Evidence and source

Publication checks are offline: native-container round trips, export-path changes, collapsed presentation, dependency inspection, and binary payload preservation. These checks do not constitute new native execution. See [publication-checks.json](publication-checks.json).

## License

MIT. See [LICENSE](LICENSE). This license covers the original example models, saved recipes, and supporting material in this package.

***

## Source

[https://community.ntop.com/#/detail/marine-return-loop-propeller-r5](https://community.ntop.com/#/detail/marine-return-loop-propeller-r5)

## Download

[Download marine-return-loop-propeller-r5.ntop](https://github.com/nTopology/Utilities-community/releases/download/marine-return-loop-propeller-r5-v0.1.0/marine-return-loop-propeller-r5.ntop)


This documentation is built and hosted on [Mintlify](https://mintlify.com), a developer documentation platform.