B4-4 Q-Jet Model Rocket Engine
2 Pack, 18mm Diameter
Quest Q-Jet Composite Model Rocket Engines
New composite model rocket engines from Quest. The 18mm are the same size as standard A - C Estes engines and will fit models designed to use the Estes engines. The 24mm motors are the same size as an Estes D12 and also fit models designed to use the Estes 24mm engines.
From the manufacturer: "The Q-Jets are the world's most advanced model rocket motors. They utilize a patent pending high-strength polymer case and bulkhead, ceramic nozzle and our exclusive Black Max™ or White Lightning™ aerospace- grade composite propellant formulation, which produces nearly double the specific impulse (or "Isp", a propellant efficiency rating) of conventional black powder propellant. They are not susceptible to thermal cycling like black powder motors. Q-Jets generate a highly-visible exhaust plume and delay smoke trail. All Q-Jets ship with a FirstFire Micro™ 2-lead initiator, which can be used with any launch controller. All Q-Jet motors are U.S. mailable with no hazmat fee!"
From the manufacturer: "The Q-Jets are the world's most advanced model rocket motors. They utilize a patent pending high-strength polymer case and bulkhead, ceramic nozzle and our exclusive Black Max™ or White Lightning™ aerospace- grade composite propellant formulation, which produces nearly double the specific impulse (or "Isp", a propellant efficiency rating) of conventional black powder propellant. They are not susceptible to thermal cycling like black powder motors. Q-Jets generate a highly-visible exhaust plume and delay smoke trail. All Q-Jets ship with a FirstFire Micro™ 2-lead initiator, which can be used with any launch controller. All Q-Jet motors are U.S. mailable with no hazmat fee!"
What's New
- 04/22/2024 - New Estes Space Shuttle now in stock!
- New RTF 1/200 Scale model... Details...
- 04/15/2024 - Upcoming Schedule
- We will be taking an extended break this spring... Our office will be closed May 16 through May 20 and again from May 22 through June 18. More details... Details...
- 04/07/2024 - RIP Gleda
- Gleda Estes, co-founder of Estes Industries, recently passed away... Details...
- 04/02/2024 - April Specials Updated
- Check out the great deals for this month! Details...
- View all news items
Testimonials
Best customer service ever! - Joshua S.
View all testimonials