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REV 2.4 - Thu Jan 13 02:34:01 2011

ASP
Jayhawk (Micro)
P.O. Box 1408
Gibsonton, FL 33534
 
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SPECS: 3.75" x 0.282"
ROCKSIM FILE: MISSING - please submit here
SpaceCAD FILE: MISSING - please submit here
REC'D MOTORS: Micro Maxx

[Picture] (04/22/02) My new ASP Micro Jayhawk has officially become my smallest rocket that I have ever built and flown. It is only 3.75" tall and 0.282" in diameter. Wow!

I've enjoyed these little Quest MicroMaxx motor rockets since I can fly them in our yard. But not only that, it is rather interesting to make something this small fly. The only thing smaller that I have ever flown was a "match rocket".


Next to the WAC Corporal I purchased the Micro Jayhawk along with the Micro WAC Corporal with Tiny Tim Booster from ASP to build on a winter vacation. Notice the size difference between those two kits. I was pleased to see that even though these are "micro" kits they are in no way "micro" in quality. In fact, the ASP kit parts and instructions are of higher quality than a number of other "standard" kits that I have put together. I was impressed.

The Micro Jayhawk included 2 body tubes, 2 tube couplers, styrene fin stock, styrene half-round, styrene launch lug, a wood nose cone, 2 sizes of lead weight, a Kevlar® shock cord, and a decal set.

CONSTRUCTION:

The instructions are on 5 pages of 8.5 x 11" paper and include illustrations as well as cutting and alignment guides. They are clear and thorough instructions telling the modeler exactly how to be successful in building and flying this rocket.

After sanding the outside of the body tubes to get the shine off, they are marked using a cut-out marking guide and a provided styrene angle. The styrene angle is a nice little provision for marking the tubes, but I found mine not quite rigid enough as I ran the pencil up along the edge. It was functional though and if care is taken would provide the functionality necessary. I found the marking guide to be missing "Tick Marks" which the instructions say should line up.

The various fins are cut out using fin cutting guides. It is recommended to use double-sided tape to keep the guide attached to the styrene strips. There are three different pieces of styrene fin material and different thickness. You are to cut the main fins, main fin tips, and leading fins from the various pieces. The styrene material is nice as it doesn't make the fins too thick in relation to the size of the rocket, but get your tweezers out to work with this stuff. Definitely follow the instructions and us CA for the faster setting time.

Like the WAC Corporal, the paper coupler is cut to size and is then used to hold both split lead shots with the Kevlar® shockcord tied to the bigger one in place in the upper-most part of the body tube. The nose cone is glued into place. The coupler sticks out of this upper body tube as the coupler for attaching the bottom section.

The lower connection of the Kevlar® shockcord is made by tying it to the remaining small piece (1/8") of cut coupler. This is then slid into the top of the bottom body tube and pushed down until it is 3/4" from the bottom. The 3/4" is set by using the second coupler. Once in place you drop in a couple of drops of CA and voila' you now have a thrust ring! I love it!

ASP instructions are thorough, but I already said that. Here they point to the fact that there is some finishing work that needs to be completed before finishing the rocket assembly. Read carefully and you will be successful.

One of the final assembly actions is attaching the nose fins. You carefully cut a slit in the wooden nose cone and then attach the nose fins to it.

After that the launch lug is glued onto one of the main (wing-type) fins and it is ready to finish.

Rocket PicI hand painted mine with Testors Model paint and a brush. I was okay with the finish, but you can see that it could be done much better if you took your time and followed the instructions. I didn't paint the nose tip black nor did I apply any of the provided water-transfer decals.

Overall, for CONSTRUCTION I would rate this kit 4 points. As with the WAC Corporal, the instructions, detail and material are outstanding. The paper template needs to have "Tick Marks". The same complaint exists, too; and that is motor retention. Quest does it with a twist clip. I've done it with a paper clip. I can't wait to see someone do it some other way.

FLIGHT/RECOVERY:

The Jayhawk did not come with a streamer like the WAC Corporal. I can't imagine being able to get it into the upper tube any way!

On the PadThe first flight zipped off the pad. I didn't actually see it until after the pop of ejection. Then it separated and fell fine. The motor kicked at ejection too and fell on the driveway next to me. Remember they are hot so don't rush over and pick them up! (no, I didn't)

The second flight was straight and fast. The rocket is so small that you should have help for spotting. I had my son helping and we recovered this one too.

For FLIGHT/RECOVERY, I would rate this kit 5 points. The use of Kevlar® is nice to hold up against the ejection charges. The attachment is nice with no outside connections made. The rocket appeared to be stable. I didn't see it fly, just know that it went straight up from the launcher based on where I saw it eject.

Overall, the Jayhawk is an excellent scale kit to fly in your backyard with MicroMaxx motors. It is fast off the pad but still trackable. The fin thickness makes it realistic in its size (proportions). It only loses some because of a slight mistake with the template and the friction fit of the motors, but in contrast with other kits, it has a thrust ring. I believe that a motor retention clip is possible and that is should be implemented. I give the kit an OVERALL rating of 4 ½ points.


Rating
(Contributed - by Chan Stevens [Who's Who Page] - 03/20/05) ASP Rocketry Micro Jayhawk

Brief:
A beautiful micro scale (46.1:1) of the Navy's Jayhawk missile. Very affordable ($7.50), flies cheaply, and packs enough detail to be a respectable peanut sport scale contestant.

Construction:
The kit contains:

  • 2 7mm body tubes
  • 2 tube couplers (1 serves as motor block)
  • Styrene fin stock
  • Styrene trim pieces (half round, standoff)
  • Styrene launch lug
  • Hardwood nose cone
  • Lead shot nose weight
  • Kevlar® shock cord
  • Waterslide decal

Instructions were well written and easy to follow but tend to be a bit light on illustrations. This build is very much like a standard skill level 2 rocket with fins cut from stock and masked paint pattern, but I'd rate it a skill level 3 due to the challenge of working on such a small scale. Plus styrene is a little harder to work with than balsa.

Construction starts with sanding and marking the body tube. A styrene angle is provided for use as a marking tool in case you don't have any doorjambs that would work on a 7mm tube.

Fins are cut from assorted stock. There are two lower fins, two upper fins, and two "wings" or stabilizers bonded to the tip edges of the lower fins. The instructions suggest using two-sided tape to tack the styrene stock in place while tracing and cutting, which is a very good idea. I scored the stock using a sharp #11 X-Acto blade, then folded along the score line until the seam cracked. I then rounded the leading and trailing edges. All styrene was glued and filleted using Plasti-zap CA. Tacking the upper fins to the wood nose cone was very tricky and I cut small slots in the nose to hold the fins in place while doing this.

ASP Rocketry MicroMaxx Jayhawk The next phase of assembly is the construction of the weighted bulkhead. To make this, you tie the Kevlar® cord into a knot, which slips through a slot in the lead sinker and catches. The weight is then glued and wedged into the tube coupler, which is glued into the upper body tube. The other end of the Kevlar® is tied around a small section of coupler. This coupler is glued to the lower body tube to also act as a motor block.

Construction wraps up with making a styrene conduit, which runs along one side of the body tube. This conduit needs to be cut at the seam of the two body tubes.

Finishing:
Painting this one isn't too bad. After a couple of coats of white primer and Elmer's Fill 'n' Finish to fill the tubes spirals, I applied two coats of alert orange. I allowed the orange to cure for a full 3 days then masked off all but the upper half of the nose for a gloss black accent.

There are some amazingly detailed water-slide decals provided with this kit, but you'll need a magnifying glass and tweezers to apply them accurately. Navy star/bar patterns, missile identity marks, stripes, everything is barely large enough to read. It's worth the work though, as this is a beautiful missile when finished with proper care.

Construction Rating: 4 ½ out of 5

Flight:
There's zero variety in the MicroMaxx motor world--you get the same MMX motors as everyone else and the same delay (less than a second usually) as everyone else. Still, it's a great thrust/weight ratio and it's always a kick to see the kids shock when they see such a tiny rocket zip at such high speeds beyond typical sight range.

This one flew wonderfully, kicking off the pad on the first try (I have a lot of trouble getting MMXs to light right away, even when using a 12V system). As usual, I could not see the flight path or notice the apogee but did pick up a cloud of smoke when it ejected and followed the tumble recovery back to earth.

I managed to land on the driveway adjacent to the field, causing one wing tip to break off. It will be easily repaired.

Recovery:
PROs: affordable motors, pretty good altitude for a MMX.

CONs: no room for a streamer, definitely needs to fly over grass.

Flight Rating: 4 ½ out of 5

Summary:
This is one of my favorite MicroMaxx rockets although I hate to call it MicroMaxx for fear it would be associated with the RTF junk that's all over the hobby stores out there. This is a very high quality kit, painstakingly detailed, and a terrific value.

PROs: incredible detail, great looking missile

CONs: micro scale is challenging to build

Overall Rating: 4 ½ out of 5

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[Enter Flight Log]
Date Name Motor Ejection/
Altitude
Wind Notes
08-05-2006 Clive Davis Qst MMX Didn't See 10+ mph winds - Nice boost and recovery. Observed most of the flight and tumble recovery. I was glad to have a bunch of extra eyes with me on the field today to find this small rocket.
02-24-2002 EMRR Qst MMX Didn't See Calm - Ditto
02-24-2002 EMRR Qst MMX Didn't See Calm - Super fast and straight.
10-31-2002 EMRR Qst MMX Didn't Record Calm RIP - Love this little guy. Good flight Status: Retired
01-10-2011 Hans Michielssen Qst MMX Just Before 0-5 mph winds Flight PictureEvent: Schoolyard
- Even with the lead weights in the nose, this little Jayhawk got good altitude. A little wag during boost. I expected to lose it, but was able to track it easily against the overcast skies.
03-20-2005 Chan Stevens Qst MMX Didn't See 10+ mph winds - Flew great, actually got it back.

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