Sky - Sky Eagle
Contributed by John Lee
Brief: Construction: Construction begins with the motor tube. A slit is cut for the engine hook 2" back from one end. It should be noted that this results in a hook that extends beyond the motor tube much more that I am accustomed to. It was the same with the Sky Long March 3 I built and seems to be an idiosyncrasy of the company. The instructions then call for the hook to be glued into place and a piece of tape put over it.
It should be noted that this kit does not include a thrust ring. Based upon previous experience, that downgrades it for me but I did not include one because I had none on hand. I did a double take at the next step. The instructions said to install the launch lugs centered between 2 of the fins. The problem was that the BT had not yet been installed on the fin can. I looked over the instructions to see if I had missed anything but there was no mention of putting the two elements together. I concluded that they were supposed to be assembled by this time because the illustration from the previous step showed them being slid together with an arrow. There is just no mention of this in the text. I put the BT on with some CA. I then installed the lugs with yellow glue.
The recovery system provided consisted of a tri-fold and a short piece of elastic. I wanted to make some changes here. I cut a long length of Kevlar® and tied a loop in the middle. I then inserted both ends into the tri-fold and glued it into the BT. With the long Kevlar®, I was satisfied with the length of elastic which seemed to be of good quality. I tied the elastic into the loop I had put in the Kevlar®. That made the rocket ready for finishing, such as there is any finishing. PROs: Easy to build. CONs: No thrust ring, incomplete instructions, tri-fold mount, and short elastic. Finishing: The plastic is a bit translucent and off white. The previous model I had from Sky, a Longmarch 3, was the same. I wanted it to be completely opaque. With that in mind I primed it with Kilz and allowed the primer to dry. I then did a bit of light sanding and painted with Krylon gloss white. That was the extent of my finishing. PROs: mostly done, looks pretty good. CONs: little/no room for individuality. Construction Rating: 3 out of 5 Flight and Recovery: Since the rocket is a bit heavy with a plastic fin can, I decided to use a B4-4 on the maiden flight. It lifted the rocket nicely but it weathercocked a bit. Ejection took place right after apogee and the rocket drifted down without any ill effects except in terms of the number of sand burrs per meter walked. It will get another outing. Flight Rating: 4 out of 5 Summary: Overall Rating: 3 out of 5 Flight Log
What You Can Do
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