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High Power Honest John Kits ???

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Murrill

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Being a fan of military rockets, for my next project I would like to build an Honest John in the "H" - "J" class. The only kit out there that I'm aware of is the Public Enemy kit. Does anyone have any experience with this kit? I did a search on the forum and found several references to the kit, but not much detail. Did the same thing at EMRR, there was a review, but once again there was little detail. (For example, what's the airframe made of? How are the instructions? More info about the stock recovery system? Are the fin slots pre-cut? etc.)

Are there any other HJ kits out there in the "H" - "I" class?

Alternatively, if I wanted to scratch build one, does anyone know if there are any HJ nosecones out there?

As always, thanks in advance!!!

John
 

gothique_97

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I'm building a Public Enemy Honest John right now. In fact, I was just down in the basement epoxying the faux spin motors to the nose cone. I think I put them on backwards. Anyways, the kit is made of reasonably good materials. This will be the first time I will have built a rocket with a shock cord that isn't elastic, so this will be a bit weird for me. The airframe is LOC-type cardboard with a nice finish. The fin slots are pre-cut, but you'll still need to finish them off with an Xacto knife. The fins are beefy 1/4" lightweight plywood as are the centering rings and bulkhead plates. The nose cone goes together as two halves connected by a 20 inch long coupler. Pretty much the only modification I may do to it is some kind of motor retention.
 

AZ_Ron

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We just picked up his first 10" HJ kit at this past weekends ARG launch... My buddy Dan said he hadn't bought a kit in awhile... I told him if he bought that one that we would make it a joint project, and I'd make him the hardware and N-2200 load for it... We think we're going to do a 6" MMT in it and do a 6" 'O' motor at Balls... Andy said 'glassing the fins is unnecessary, even with such a motor, so we're going to test it! :D

Ron
 

sandman

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The Estes Maxi Honest John with a little fiberglass should work for an L1 bird.

Replace the fins with something stronger.

sandman
 

n3tjm

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Originally posted by sandman
The Estes Maxi Honest John with a little fiberglass should work for an L1 bird.

Replace the fins with something stronger.

sandman
Sandman beat me to it...

Also replace the chutes ;).
 

gothique_97

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Some guy from CTRA launched an Estes Honest John on a J180 at LDRS 15. The rocket was pretty much all motor with a deploying altimeter in the nose cone.
 

LMazza

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I am also building this rocket right now. Just about done too. I'm really pleased with the common sense design and quality parts. I decided to fiberglass the tubes and fins for durability and so that it can easily survive the occasional J flight. You might want to consider this also as the tubes are not the thickest in the world and zippers seem like a real possibility. The instructions are minimalist but I easily figured everything out having only built 1 other high powered rocket. The recovery system is good. The parachute is a bit on the small side but I think the kit will take the landings fine. The fins are pre-beveled at pretty sharp angles. For the leading edges I gave them a more gradual look.

I have documented just about every step with photographs and will post a review soon.

Here are some pictures that might help. 1. The parts and 2. A dry fit of the parts.



 

solrules

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Love that kit. I built it with rail buttons instead of Launch lugs (used a wood standoff on the body tube). I really wish I would have fiberglassed it, the body tube seems a bit weak, but the fins are 1/4" plywood...not going to break. I haven't launched it, but I heard it gets some insane whistle on the way up (and down, if you have too long of a delay!)
 

LMazza

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I didn't know it whistles. I sure hope mine will! :D
 

LMazza

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Yeah he did a nice job. I actually emailed him about the kit and he said that if he were to build another he would fiberglass it.
 
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