---
title: "Lockheed L-1011 TriStar"
type: "entity"
entity_kind: "concept"
status: "hub"
canonical_name: "Lockheed L-1011 TriStar"
aliases: ["L-1011","TriStar"]
first_seen: "2026-07-18T00:00:00.000Z"
writer_model: "claude-sonnet-5"
connects_to: ["organizational forgetting","C. Lanier Benkard","learning curve","Wright's law"]
---


A wide-body airliner program (not, as an earlier vault draft mistakenly had it, a jet fighter) whose production history is the vault's flagship empirical case for learning-curve reversal: C. Lanier Benkard's 2000 econometric study of the L-1011 line is the source of the vault's only primary-sourced organizational-forgetting depreciation estimate. The program's incomplete spillovers between model variants (-1/-100/-200 vs. -500) are themselves part of what the estimate has to control for.

## References
- [[claim-organizational-forgetting-can-reverse-the-learning-curve]] · [[claim-benkard-2000-estimate-implies-far-less-forgetting-than-prior-studies]] · [[claim-benkard-2000-headline-depreciation-figure-is-the-spillover-adjusted-specification]]
- Related hubs: [[entity-c-lanier-benkard]] · [[entity-organizational-forgetting]]
- Captures: 2026-07-11-hop-learning-curve-unidentified, 2026-07-24-does-benkard-2000-report-the-organizational-forgetting-depreciation