J420R
L2AeroTech · J-class · 38mm · Redline · RMS-38/720
Sold out at all 9 tracked vendors
Requires NAR/Tripoli L2 certification.
- Impulse class
- J
- Diameter
- 38 mm
- Total impulse
- 658 N·s
- Avg thrust
- 420 N
- Burn time
- 1.6 s
- Burn character
- Standard burn
- Specific impulse
- 194 s
- Propellant
- Redline
- Delays
- 4,6,8,10
- Case / type
- RMS-38/720
- Common name
- J420
- Shipping
- Hazmat required
Ships as a hazardous material (>62.5 g propellant), so most carriers add a hazmat fee. Check the vendor's shipping terms.
Thrust curve — vs. in-stock substitutes
- J420R563 N · 1.6 s
- J396-SF543 N · 1.6 s
- HP-J425R453 N · 1.6 s
- J435WS695 N · 1.8 s
Availability by vendor
J420R-M · 4,6,8,10s
- Wildman Rocketryout of stock$107.99view
J420R-14A · 14s adj
- Balsa Machining Serviceout of stock$86.39view
- BuyRocketMotors.comout of stock$91.19view
- Sirius Rocketryout of stock$93.95view
- Animal Motor Worksspecial order$95.99view
- Performance Hobbiesout of stock$95.99view
- Moto-Joe Rocketryout of stock$96.00view
- AeroTech (direct)special order$107.99view
- Chris' Rocket Suppliesout of stock$107.99view
Availability history
61%buyable somewhere over the last 71 days
Out everywhere · last buyable 28d ago · price ranged $75.68–$107.99
Jun 5now
Balsa Machining Service
BuyRocketMotors.com
AeroTech (direct)
Wildman Rocketry
Performance Hobbies
Animal Motor Works
Chris' Rocket Supplies
Moto-Joe Rocketry
Sirius Rocketry
in stockoutbefore tracked· hourly since Jun 5
Price history
Cheapest in-stock price across vendors, per motor.