High Power Model Rocketry

Esoteric 4

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$86.47 $141.75 In stock

In the early days of LOC, the Esoteric was the stuff of dreams! Standing nearly two men tall, a cluster of five 54mm motors launched the 7.5" to 5.5" diameter brute to absolute legend status at LDRS 5. Now, the Esoteric 4 brings that lineage to a modern, every weekend flyer!

Featuring a single 54mm motor mount and LOC-N-Mount construction with 1/4" fins, the Esoteric 4 lets you stretch your legs with our optional LOC-N-Ring Motor Adaptors. Easily and affordably adapt down to smaller diameter motors quickly in the field. Oh, you want to go high? Toss in a 3.90" Electronics Bay and rig it up for dual deployment!

The 4" to 3" transition sure gives it a pop on the pad. It's cool. It's different. One could say it's a bit...esoteric.

Complexity: Intermediate
Diameter: 4″ reduced to 3"
Height: 68.75"
Weight: 4.6lbs.
Motor Mount: 54mm with MR-1 Retention
Parachute Size: 50” Ripstop Nylon
Shock Cord Type: NW-20 20' 3/8″ tubular nylon with sewn loops 
Shock Cord Mount: SCM-3 Eyebolt
Fin Thickness: 1/4″ LOC-N
Ring Thickness: 1/4″ LOC-N
Rail Buttons: 1010 series
Vinyl Decals: Logo and roll pattern

Center of Pressure: 56.4" 

General LOC N Ring/Fin Instructions

OpenRocket Sim File

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Customer Reviews (5.0 / 5 · 5 reviews)

Charlotte ★★★★★

Finally got mine to the pad after months of building, and the sheer scale of this thing – nearly two men tall – makes every other rocket on the rack look like a toy. That 7.5" to 5.5" taper gives it such a mean profile on the rail. Clustered five 54mm motors and the roar was absolutely worth the wai

Timothy S. ★★★★★

The five 54mm motor cluster is an absolute monster to prep, but the first time you see that 7.5" diameter airframe punch off the pad, every bit of work feels worth it. The sheer scale of this kit is something you have to experience in person.

Jacob ★★★★★

I remember seeing this beast fly at LDRS back in the day—the sheer size of that 7.5-inch airframe on a cluster of five 54mm motors is something you just don't forget. It's still an impressive build for anyone wanting a piece of that early high-power rocket history.