Lotus Dev 2


Lotus Dev 2 (LD2) is the latest engine to the Lotus series. LD2 is a pressure fed engine with 233s Isp and produces 2,500 lbf at sea-level thrust. The regeneratively cooled chamber chamber allows for long duration burns and easy re-use. A single LD2 will fly on the Starscraper sub-orbital launch vehicle during the summer of 2017.

Technical Overview

Fuel: Liquid Isopropyl Alcohol (C3H8O)
Oxidizer: Liquid Nitrous Oxide (N2O)
Isp Sea-Level: 233 s
Isp Vacuum: 291 s
Thrust Sea-Level: 2,500 lbf
Thrust Vacuum: 2,660 lbf
Throttle Type: Blowdown
Burn Time: 70 s
Thrust Vector Control: Gimbal