---
type: source
title: "IFT-12 Full Stack at OLP-2: Booster 19 Second Static Fire Complete, WDR Underway — NET May 15"
author: "NASASpaceFlight.com (@NASASpaceflight)"
url: https://www.nasaspaceflight.com/2026/05/booster-19-33-ship-39-rollout/
date: 2026-05-09
domain: space-development
secondary_domains: []
format: article
status: null-result
priority: medium
tags: [Starship, IFT-12, V3, Raptor-3, WDR, OLP-2, booster-19, ship-39, launch-readiness, static-fire]
intake_tier: research-task
extraction_model: "anthropic/claude-sonnet-4.5"
---

## Content

**Sources:** NASASpaceFlight.com (May 2026), Tesla Oracle (May 9, 2026), NotATeslaApp, YouTube: "SpaceX Conducts WDR on Flight 12 Stack"

### Current Launch Readiness Status (May 10, 2026)

**Milestone 1: Second 33-engine static fire — COMPLETED (May 7, 2026)**
- Booster 19 completed a full-duration, full-thrust 33-engine static fire test at OLP-2
- All 33 engines on Booster 19 are Raptor 3 units — first fully Raptor 3-equipped Super Heavy booster to fire
- This is the SECOND static fire (the first was April 15, 2026) — a deliberate regression test after the May 4 deluge system repair

**Milestone 2: Full Stack Integration at OLP-2 — COMPLETE**
- Following the May 7 static fire, Ship 39 rolled out to join Booster 19 at OLP-2
- Both vehicles stacked as IFT-12 flight configuration at Orbital Launch Pad 2 (Starbase, Boca Chica, TX)
- This is the inaugural use of OLP-2 — first full stack on the second launch mount

**Milestone 3: Wet Dress Rehearsal (WDR) — UNDERWAY / COMPLETE (this weekend)**
- WDR simulates complete countdown sequence including:
  - Full propellant loading (liquid oxygen + liquid methane, both vehicles)
  - Range clearance procedures
  - Village evacuation at Boca Chica
  - Pad systems and procedures validation for OLP-2 launch control team
- YouTube video ("SpaceX Conducts WDR on Flight 12 Stack") confirms WDR execution
- Post-WDR: vehicles will return to production area for final inspections before rollout for launch

**Launch Schedule:**
- NET (No Earlier Than): May 15, 2026 at 22:30 UTC (5:30 PM CDT)
- First window: May 12, 2026 at 22:30 UTC (per CADENA NOTAM)
- Backup windows: May 13-18, 2026 (daily, ~5:30 PM CDT)
- Prediction markets (Polymarket as of May 7): 91% launch probability before May 15 end

**Mission Profile (reminder):**
- Suborbital test
- Booster 19: boostback + Gulf of Mexico splashdown (no catch attempt)
- Ship 39: high-energy suborbital + Indian Ocean splashdown
- V3 upper stage reentry survival: KEY TEST (no V2 upper stage survived reentry)
- Revised southerly trajectory (Caribbean corridor south of Hispaniola/Puerto Rico)

**V3 vs V2 significance:**
- Taller vehicle + higher propellant capacity → ~3× payload capacity in full reuse mode (vs V2)
- Raptor 3 engines: higher thrust + improved reliability vs Raptor 2
- Upper stage reentry: if Ship 39 survives thermal entry, V3 reuse economics become demonstrable
- Booster 19 aft section: full factory paint application for improved thermal protection

---

## Agent Notes

**Why this matters:** WDR completion is the final operational gate before launch. With WDR done, the only remaining uncertainties are weather (secondary) and any surprise anomaly during terminal countdown. The three-milestone sequence (April 15 static fire → May 7 static fire → WDR → launch) is tracking cleanly. May 15 launch window is 5 days away.

The key data point IFT-12 will produce: V3 upper stage reentry survival. If Ship 39 survives reentry in a condition demonstrating recoverability, the full-reuse Starship economics become credible to model. No V2 ship has achieved this. This is the single most important engineering test of IFT-12.

**What surprised me:** A second static fire (May 7) was not in the prior session's data. The original April 15 static fire was the planned test; the second May 7 test appears to be additional validation after the May 4 deluge system repair. SpaceX running an additional regression test before WDR shows engineering conservatism on the pad debut — appropriate for OLP-2's inaugural use.

**What I expected but didn't find:** Specific information about what Ship 39 modifications address the IFT-11 anomaly (the unspecified issue that caused the FAA investigation). The corrective actions remain undisclosed. The revised southerly trajectory is the only visible implementation.

**KB connections:**
- [[Starship achieving routine operations at sub-100 dollars per kg is the single largest enabling condition for the entire space industrial economy]] — IFT-12 is the primary 2026 test of this claim
- [[Starship economics depend on cadence and reuse rate not vehicle cost because a 90M vehicle flown 100 times beats a 50M expendable by 17x]] — V3 upper stage reentry survival is the key test

**Extraction hints:**
- DO NOT extract a claim until IFT-12 flies. Archive is for context only.
- After IFT-12 (May 15+), extract on: V3 upper stage reentry outcome, Raptor 3 in-flight performance, OLP-2 operational confirmation.
- If IFT-12 fails: extract on specific failure mode and what it means for the sub-$100/kg timeline.

**Context:** NASASpaceFlight.com is the most technically authoritative independent Starship tracker. This archive supersedes the May 8 IFT-12 status archive (which had the FAA gate as the last open item; that gate is now closed and WDR is the new status).

## Curator Notes (structured handoff for extractor)
PRIMARY CONNECTION: [[Starship achieving routine operations at sub-100 dollars per kg is the single largest enabling condition for the entire space industrial economy]]
WHY ARCHIVED: Updates IFT-12 status beyond the May 8 archive — WDR milestone is new. Confirms May 15 NET with high launch probability. Extractor should not use until post-flight.
EXTRACTION HINT: This is a status update archive, not a claim source. Wait for IFT-12 outcome (May 15+) before extraction. The new information is: second static fire + WDR completion + OLP-2 inaugural stack. These details context the post-flight analysis.
