Secondary biographical material also states that Schmoll remained involved in aircraft escape and survival-system engineering or consulting and continued work connected with Universal Propulsion Company (UPCO) into the late 1990s.15
There is independent evidence for the broader technology relationship. Historical material on YANKEE states that Universal Propulsion later acquired some Stanley Aviation designs and that the extraction concept continued under the RANGER name.16 UPCO itself was a substantial aerospace-survival supplier designing and manufacturing military aircraft escape systems and related components.17
What has not yet been independently established is Schmoll’s own employment or consulting relationship with UPCO.
No located source presently provides:
- a UPCO personnel record;
- job title;
- employment dates;
- patent naming Schmoll;
- technical paper authored by him;
- project assignment;
- company directory entry; or
- obituary identifying UPCO as his employer.
The defensible conclusion is therefore:
The Stanley-to-UPCO technology connection is documented; Harry Schmoll’s reported long-term work with UPCO is not yet independently documented.
References
- 15 Secondary biographical material states that Schmoll continued engineering, consulting, or development work connected with Universal Propulsion into the late 1990s. No independent personnel, patent, employment, technical-paper, or obituary evidence presently confirms his individual UPCO role. ↩
- 16 Historical YANKEE material states that Universal Propulsion acquired some Stanley Aviation designs and that the extraction concept subsequently continued under the RANGER name. The Ejection Site, “Stanley YANKEE Extraction System”: ejectionsite.com/yankee.htm ↩
- 17 A 1993 environmental facility assessment describes Universal Propulsion as an aerospace company designing, developing, and manufacturing military aircraft ejection seats and emergency escape/survival components, supported by scientists and engineers engaged in research and development. Arizona Department of Environmental Quality facility assessment: static.azdeq.gov/wpd/hazwaste/upco_facility_assessment_rev.pdf ↩