J615ST-20A 54mm Super Thunder Aerospike RMS-Plus Level 2 HPR reload kit- 20 Second Adjustable Delay HAZMAT
The J615ST-20A is the first high-power hobby rocket motor featuring an “Aerospike” nozzle and is designed to use the two-grain RMS-54/852 hardware. Our Aerospike nozzle provides an especially cool "I flew one” experience for our high-power flyers. Theoretically, an Aerospike nozzle expands the rocket motor exhaust gases around a center body rather than internally in the exit cone of a conventional nozzle. Aerospike nozzles have the advantage of being self-adjusting to the rocket’s ambient pressure in flight and therefore can be more efficient than a traditional fixed-expansion ratio nozzle when used at a wide range of altitudes.
In consumer applications, however, the Aerospike nozzle is utilized more for its unique appearance and novelty rather than for performance reasons. Our Aerospike nozzle does produce a rather novel exhaust plume. The J615ST-20A has a high-thrust profile for heavy rockets delivering 745.5 N-Sec (167.6 lb.-Sec.) of total impulse with a 1.2 second burn time and an all-up weight in motor hardware of 1.8 lb. (801.7 g). This new rocket motor utilizes AeroTech’s aerospace-grade Super Thunder™ (ST) propellant formulation with a burn rate midway between Blue Thunder™ and Warp-9™ propellant types. The J615ST-20A generates a peak thrust of 933.9 N (209.7 lb.) with an average thrust of 615.1 N (138.3 lb.). The J615ST-20A includes an ejection charge and produces tracking smoke via a 20 second time delay adjustable to increments of 18, 16, 14 and 12 seconds.
J615ST-20A Specifications
Diameter: 54mm (2.13”)
Length: 240.4mm (9.5”)
Propellant: Super Thunder
Total Impulse: 745.5 N-Sec. (167.6 lb.-Sec.)
Burn Time: 1.2 Seconds
Peak Thrust: 933.9 N (209.7 lb.)
Delay Time: 20 Seconds - Adjustable to 18, 16, 14 and 12 seconds.
Propellant Weight: 370.5 g (0.82 lb.)
Loaded Weight: 801.7 g (1.8 lb.)
20-second adjustable delay included with this reload kit Reload delay kits are available to alter delays (see
Reload Delay Kit section).
Reload Kit for 54/852 Motor (not included). Kit contains parts for one reload. This is a High-Power motor requiring Level 2 High-Power certification through NAR or Tripoli to purchase. Orders containing this item will not be shipped until proof of certification and age is received (
more information here on the HPR information page).
NOTE: Orders containing this item must be shipped via FedEx Ground HAZMAT and can be shipped within the Continental United States only. A $48.00 HAZMAT fee per order applies and will be added automatically at checkout time. FedEx Requires that ALL HAZMAT deliveries get an adult signature upon delivery..
TIP: Order more HAZMAT items at one time to spread the HAZMAT cost over many items.
NOTE: SALE TO PERSONS UNDER 21 YEARS OF AGE PROHIBITED BY FEDERAL LAW. WARNING-FLAMMABLE: Read Instructions Before Use. KEEP OUT OF REACH OF CHILDREN. FOR USE ONLY BY INDIVIDUALS 21 YEARS OF AGE OR OLDER. DO NOT SMOKE when loading these motors or use in the vicinity of open flames.
Ways we can ship this product:
FedEx Ground Only ($48.00 HAZMAT Fee will be applied at checkout)
