This is a very well designed sport scale version of the USAF Bull Pup 12D. You should be able to build this rocket if you have a couple other rockets under your belt.
The first thing I noticed was that this model was in a box. Some Estes kits are in flimsy plastic bags, which makes the parts prone to creases and such. I opened up the box, and all the parts were there, nothing was broken. The materials were pretty much normal. Plastic NC, balsa fins, cheap shock cord mount etc. (See below) The instructions were pretty easy to follow, lots of pics.
TIP: Better shock cord and shock cord mount! As with most Estes kits, replace their shock cord and shock cord mount!
It took me a while to get the fins lined up right, but I finally got it. I used regular 'ol Elmers white glue. Very sturdy.
Finishing is pretty basic. I filled the balsa grain with normal sanding sealer, applied a couple of coats of grey sandable Krylon primer, then finished it up with a few coats of Krylon flat white paint. I personally prefer the self adhesive decals, but the decals (water transfer) that came with this kit were satisfactory. When finished, this rocket looks VERY nice.
Construction Rating: 4 out of 5
FLIGHT #1- For the maiden flight of this rocket, I used a C6-5. I would have used a smaller motor, but these were left over from last launch and I wanted to use them.
FLIGHT #2- I used a B6-4 motor for this flight, it wasn't as high as the C6-4 was, but it worked for me. I got a little scared as the delay was longer than expected (about 2 secs) and YES, I filled out a MESS form. Luckily, the rocket didn't suffer any damage other than a paint scrape.
FLIGHT #3- Same as last flight, but delay was accurate.
FLIGHT #4- Used a C6-5 again, pretty cool flight. Nominal.
I don't have any gripes about recovery. IF you replace the shock cord and mount, then you will be all right, as long as the motor doesn't give you a surprise delay *g* The only damage sustained from flight was a minor paint scrape due to a rough landing, other than that, pretty sturdy rocket.
Flight Rating: 4 ½ out of 5
I love this rocket! Flights are high and fast! It is a sturdy rocket if you build it right. Again, my only gripe is the shock cord and mount. REPLACE THEM! Oh yea, there is one more thing I don't like about this rocket, it isn't anything major, but I would prefer a motor hook instead of making tape (friction fit). I feel uneasy about taping my motors into my rockets.....
Overall Rating: 4 ½ out of 5
Matt . The bull pup D12 is a sports scale rocket. I had one that I flew often and lost it on a roof. With the 2010 challenge asking for a duel review, I dusted off two kits from the build pile. Chris Fisher and I are both members of Midland Rocketry and meet up once a month. So he and I both built the kit. Chris . First up I must thank Matt for giving me the kit. Of course I know it's just ...
Brief: This is a sport scale version of the Air Force's Bullpup Missile. A skill level 2 rocket but not that hard. It has been around for quite a bit now. Construction: The kit comes in either a box or a bag (nowadays it comes in a bag) and mine had all of the parts. You get: Nose Cone Body Tube Sheet of balsa Tail Cone Clay Nose Weight Centering Rings ...
( Contributed - by Frank Ross - 11/01/00) Brief: Upsized motor to 24mm. Modifications: The modification is fairly simple. I sanded down the plastic tail cone until the opening was the same as the inner diameter of a BT-50 motor mount tube. I used a BT-50 to BT-55 centering ring for the forward end of the motor mount and epoxied the aft end of the motor mount into the tail cone, being ...
(by Doyle Tatum) I purchased this model about 6 months ago and with the upcoming SoAR Birthday celebration launch (the first rocket to fly at a SoAR launch was a Bull Pup) and the discussion of converting to 24mm, on RMR, I decided to assemble the rocket. I assembled the rocket per the instructions with the following additions and exceptions: I cut a 24mm tube and then sanded the ...
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