Talk:Photon Jetpack/@comment-24986675-20140605071246

Conclusion:

The first pickup allows you to fly around 1.2s (not 1.6s). [Not that sure]

When stacking, each item gives you an extra 0.4s flying time. [Pretty sure]

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First of all, all the tests are base on my stopwatch and what considered as "flying" by myself. (So can be highly debatable XD) There're 3 phases in the air: jumping, flying and falling. Only flying phase uses the fuel in the Photon Jetpack tank. It's quite difficult to tell the threshold between each two of them. I'm calculating the time from the moment pressing&holding space bar on the very top of a vine to the moment the first discontinuous sparks coming out of the Photon Jetpack. Note that at the very top of a vine (normally above that platform at the top) you can fly without jumping at first (needs further confirmation, although tested with Rusty Jetpack and no jumping spark at all). Also, when you're out of fuel, the Photon Jetpack will start giving off discontinuous sparks instead of continous ones. While testing with 1 Photon Jetpack, the time length is definitely less than 1.6s, even if including the jumping phase. It's not very easy to tell the time increment with only a few jetpacks. However, the more you stack, the easier you can notice the difference between 0.4s/stack and 0.8s/stack. (e.g. You will easily notice that the flying duration is around 0.4s * 50 = 20s rather than 0.8s * 50 = 40s after you've got 50 Photon Jetpacks).

- Anyway, 1.2s or 1.6s at the first stack doesn't make a huge difference, especially after you've stacked many of these jetpacks. One interesting thing is: you can literally "FLY" without touching the ground any more by just simply holding the space bar at around 37/38 stacks, since the fuel tank will be refilled while you're falling, and the falling height is less than what you will gain from the refilled fuel. (If you are proficient at flying, you may manage it with less stacks XD)