LOC Precision Warlock 54mm

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wij

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Having been a fan of the Warlock for a while and recently getting my L2 I figured it was only right to build the Warlock as my first "bigger" rocket. The main build took me around 18 days, the only thing i'm waiting on is the recovery setup ( using a pilot chute, deployment bag, and tender descender ). It was a breath of fresh air to do a build with so much room in the airframe it really made everything come together smooth. I am still waiting on my main parachute to get here and then I will get a final weight on the rocket.. i'm guessing around 130-140 ounces.

Here is an overview, I decided on the 54mm version for more selection of motors. I used Rocketpoxy for the majority of the build. I built an avbay into the nosecone to house the flight computer(s). I strengthened the airframe with the easyglas sock from Giant Leap, using Aeropoxy laminating resin. Motor retention is handled with an Aeropack 54mm. Using a 24" topflight chute as a pilot chute to pull out a 6 ft disc gap band parachute from Bama Recovery which will be housed in a custom deployment bag I made. For the first flights I plan to let the pilot chute pull the main at apogee to ensure it all works smooth, then after that I will be using the tender descender to tether the pilot chute and act like a drogue until it releases the tether and allows the pilot to pull the main.

On with the build.. I laid out all the parts and did a dry fit of the rocket. Everything was very tight and aligned.

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I chopped the base off of the Nosecone and prepped the inside surface for the avbay components. I installed some t-nuts into a 7.6 - 3" centering ring and epoxied it into the NC shoulder. I then made a simple sled and drilled some holes to attach to the bulkhead. I also installed my charge cup and U-bolt. Using 3 screws to hold it into the NC.

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wij

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Next up I constructed the Motor Mount. Sanded the whole 54mm tube with 60 grit and also roughed up the centering rings. I used Rocketpoxy and really enjoyed working with it, It has a nice consistency for getting solid fillets. I left off the rear CR so I could do internal fillets. Once the fwd CR was cured I installed the U-bolt for the recovery harness.

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Next I glued the mmt into the airframe. Again using rocketpoxy makes it very easy to get solid fillets all along the joints. Since this will be a heavier rocket I decided to add some protection to the ends of the body tubes. I did a wrap of 6 ounce fiberglass around the fwd and aft ends of the body tube.

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After that was cured and sanded I was ready to move along with the Easyglas sock. It went over very smooth and definitely added some durability to the airframe. I mixed of some Aeropoxy laminating resin and started soaking the fabric. Once it was cured (24 hours later) I sanded the whole airframe and got ready to shape the fins.

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I kept the fin shaping very simple. Just a clean rounded leading edge. I then tacked the root edge of the fins to the mmt and got everything squared up.

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wij

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Now onto the Fillets.. I had always used thickeners to get my epoxy to the right consistency for fillets but with the rocket poxy you can just let it setup for a few minutes in the mixing cup and your ready to go!

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Body tube all together, aft centering ring was glued on as well.

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I got the electronics placed on the sled and secured. Im using an Eggtimer Quark and a 7.4v Lipo. I have a rotary switch which can be accessed through the vent hole on the nosecone. On the subject of vents.. I have placed 3 vents around the NC just above the shoulder to vent the avbay. The rocket airframe also has 2 vent holes to equalize pressure and negate a possible drag separation.

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wij

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Now time for some Paint! I chose a very simple design and also designed my own vinyl decals. I drew these designs along with the lettering on my ipad and then sent the files to a printing company and had my own decals created! Looks great, I really enjoy this color combo.

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The last step I did was to secure the Aeropack 54mm retainer onto the mmt using JB-weld.

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Super_Dave_47

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That's a good looking rocket. A warlock is definitely in my long term future . . . it's the king of the high diameter stubby rockets IMHO
 

DMehalko

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Nice!! Im quite partial to this bird myself, i like that you added electronics, i might need to revise mine lol.

 

crossfire

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My Warlock likes to fly on CTI J360 Skids. It puts on a nice show.
 

ECayemberg

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Great job!

That wrap of glass to the top of the tube is the best thing one can do to extend the life of a Loc ship; well done!
 

wij

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Nice!! Im quite partial to this bird myself, i like that you added electronics, i might need to revise mine lol.

I must have went through your build log about 10 times while waiting for it to get delivered haha! You did a great job with yours! I opted for electronics because I want to fly this on K motors eventually and don't want to put out a main above 2000'... also will give accurate apogee deployments. Motor ejection as a backup!
 

wij

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Great job!

That wrap of glass to the top of the tube is the best thing one can do to extend the life of a Loc ship; well done!
Thats good to hear, I want this rocket to last so I put some extra thought into durability :cool:
 

wij

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My Chute arrived yesterday and I got my deployment bag complete as well! The parachute it s 6 foot Disk Gap Band from BAMA Recovery, I love the quality of Bama products. The deployment bag I made out of kevlar fabric and sized it to fit the chute snug. I added some loops on the outside of the bag to keep the lines neat and secured. It pulls out of the bag very smooth with ease, but its held secure enough to withstand being shaken around and not coming loose. The end flaps of the bag are held together with a small patch of velcro. I have sewn a loop into the top of the bag for the pilot chute and the bag is attached to the main with an internal loop/lead to the top of the main. This was my first time really sewing anything so its not totally perfect but its strong and will work great! ( I hope ) I plan on making a revised version of this bag soon as well. If anyone has any advice on deployment bags please feel free to drop some knowledge on me! I have attached pics of how the chute pulls out of the bag.
 

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wij

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What are the weights of peoples Warlocks?? I have mine right around 150 ounces dry.
 

RJT

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Mine weighs in at about 117 oz, and I thought it a bit heavy. Haven’t flown it yet either.
 

DMehalko

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Where is the cg on your Warlock?
So depends on the motor of course, ive flown mine with a variety of J's and K's, aiming for a 0.5cal of stability. For CP i averaged OpenRock and Rocksim for a 37.75" Average CP location, and trying to keep the cg 4" in front of that, so far all arrow straight flights
 

wij

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So depends on the motor of course, ive flown mine with a variety of J's and K's, aiming for a 0.5cal of stability. For CP i averaged OpenRock and Rocksim for a 37.75" Average CP location, and trying to keep the cg 4" in front of that, so far all arrow straight flights
Awesome, thats about right here I have it. I epoxied a piece of all-thread into the tip of the NC that I can load up with washers and then tighten down with a wing nut so I can have variable nose weight. I needed about 3 ounces to get .5 cal with a J350. Will need another ounce or so for K's
 

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