---
type: daily
date: 2025-12-27
---
# 2025-12-27

## [[Log]]

- 08:00 Arrived at [[Test Facility]] for [[Hot Fire Test]]
- 09:30 Pre-fire [[Briefing]] with [[Marcus Johnson]] and [[Test]] crew
- 10:45 [[Hot Fire]] test SUCCESSFUL - 12 second [[Full]]-duration burn at 100% throttle
- 11:00 Initial [[Data]] review [[Shows]] [[Excellent]] [[Performance]] - [[Chamber Pressure]] 8.4 MPa ([[Target]]: 8.5 MPa)
- 11:30 Celebrated with [[Team]] - [[First]] full-duration burn of [[Engine Design]]
- 13:00 [[Marcus Johnson]] briefing [[Sarah Chen]] on [[Results]]
- 14:00 Started detailed post-fire analysis - [[All]] sensors nominal
- 15:30 Inspected [[Engine]] - no anomalies, [[Ready]] for [[Next]] [[Test Series]]
- 16:00 [[Updated]] [[Engine Hot Fire Results]] with data

## Tasks

- [x] Conduct [[Hot]] fire test @marcus 📅 2025-12-27
- [x] [[Complete]] post-fire inspection @marcus 📅 2025-12-27
- [x] Update [[Test Results]] [[Documentation]] @marcus 📅 2025-12-27
- [ ] [[Analyze]] [[Sensor Data]] in detail @marcus 📅 2025-12-30
- [ ] Plan next test series (throttle sweep) @marcus 📅 2026-01-03

## [[Notes]]

MAJOR MILESTONE: First full-duration hot fire test of [[Engine Design]] successful! Chamber pressure hit 8.4 MPa (99% of target), [[Specific Impulse]] estimated at 287s (target: 290s, within margin).

[[Turbopump]] performed flawlessly [[Despite]] earlier delivery [[Concerns]]. [[Cooling System]] kept temperatures well within limits. [[Thrust Vector Control]] actuators responded perfectly to test commands.

[[Marcus Johnson]] estimates we're [[Now]] 2 [[Weeks]] ahead of [[Test Campaign Overview]] schedule. [[This]] gives buffer for [[Critical Design Review]] preparation.

Next test: Throttle sweep (25% to 100%) to validate engine controllability for [[Landing Algorithm]].
