After endless tries, how can it be achieved?
Req: 5Km~14Km, 100~800 m/sec
I created a craft with the device, achieved all test conditions (all is green), still I don't get the achievement. What did I miss?
To fulfill an engine test contract, you need to get to the conditions and then activate the stage the part is on. That means you need to build a two-stage rocket. The first stage to get the part into the test conditions and the second stage with just the BACC booster which you activate when all conditions are green.
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6For some parts (usually parts you can't stage), there can also be a "Run test" entry in the right-click menu of the part. – GruntGrunt Oct 8 '15 at 5:01
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5A tip for OPs particular contract - since SRBs are heavy you could adjust the amount of Solid Fuel in it to, say, 5% and thus have less mass that you need to bring up to 5Km altitude – Sergii Zaskaleta Oct 9 '15 at 7:23
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2Yep, a rocket composed of one Hammer to get to the desired altitude, one BACC with 5% fuel, and a probe core will suffice (add some parachutes if you want to recover), just make sure to fire the BACC when conditions are met. You may even attach the BACC upside-down, so that it halts your upwards travel for that. – SF. Oct 16 '15 at 13:23
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@SergiiZaskaleta BAHAHAHA! Why did it never occur to me to reduce the fuel in the booster? I pulled all of the monopropellant out of the capsule, but I didn't think to pull fuel from the booster. XD Thanks to you, I finally pulled it off. :D I should mention that I was aiming for 160 km, so getting it up there was a little trickier. – Justin Force Apr 19 '16 at 6:27
