Firefly Alpha - FLTA007 – Last Flight of Block 1 [Live: 29.02.26; 00:30 UTC]

8 days ago (Edited)

New launch date due to high uppler-level winds twitter

Firefly Aerospace is an emerging player in the small satellite launch market. The Alpha rocket can deliver payloads of up to 1,030 kg to low Earth orbit (LEO, ~300 km) or 630 kg to Sun-synchronous orbit (SSO, ~500 km).

Like Rocket Lab's Electron, Alpha uses a fully carbon composite structure. It is larger, enabling greater payload capacity. Notably, its Reaver (Stage 1) and Lightning (Stage 2) engines employ a tap-off cycle—a design that has not previously achieved orbit.

For reference on engine operation:
Close-up Ignition of a Rocket Engine in Slow Mo - The Slow Mo Guys

Comparison Table

Rocket	Height (m)	Diameter (m)	Payload to SSO (kg)	Estimated Cost per Launch
Firefly Alpha	29.5	2.2	630	~$15–19 million
Electron	18	1.2	200–300	~$8 million

(Note: Alpha dimensions and performance from official Firefly specs; costs are approximate industry figures.)

As a developing launch provider, Firefly has experienced setbacks, including partial successes and failures on earlier flights. Flights 3 and 5 achieved success.

Mission Overview

FLTA007, named "Stairway to Seven," is a return-to-flight mission following the FLTA006 anomaly in 2025. This is the final launch of the current Block 1 configuration.

The flight will test and validate key subsystems in preparation for the Block II upgrade on Flight 8. Block II enhancements include:

~ 2,1 m increase in vehicle length
In-house consolidated batteries and avionics
Improved thermal protection system
Stronger carbon composite structures produced with automated processes

These Block II-related subsystems (e.g., in-house avionics and thermal upgrades) will fly in a test/shadow mode on FLTA007 to gather flight heritage and confirm prior lessons learned.

Payload: Test/demo (no commercial satellites; focused on vehicle validation)
Launch Site: SLC-2, Vandenberg Space Force Base, California
Trajectory: Likely southwest for retrograde or polar orbit insertion

Source: fireflyspace.com