60 m/s = 197fps = 216 km/h = 135 mph with the 3,9 gramm = 62 gr pencil
7 Joule = 5.2 ft-lb
44 m/s = 144fps = 158 km/h = 99 mph with the 10 gramm = 160 gr "short arrow"
9,7 Joule = 7,15 ft-lb
Not bad, for this little toy!
Saturday, March 17, 2012
Chrony Results - Pencil Launcher
I just clocked the weapon with the doubled up rubber...
60 m/s = 197fps = 216 km/h = 135 mph with the 3,9 gramm = 62 gr pencil
7 Joule = 5.2 ft-lb
44 m/s = 144fps = 158 km/h = 99 mph with the 10 gramm = 160 gr "short arrow"
9,7 Joule = 7,15 ft-lb
Not bad, for this little toy!
60 m/s = 197fps = 216 km/h = 135 mph with the 3,9 gramm = 62 gr pencil
7 Joule = 5.2 ft-lb
44 m/s = 144fps = 158 km/h = 99 mph with the 10 gramm = 160 gr "short arrow"
9,7 Joule = 7,15 ft-lb
Not bad, for this little toy!
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Nice job,
ReplyDeleteYou come up with the greatest ideas!
You should shoot ballistic gelatin with it.
That goes FAST!
ReplyDeleteCan you please make a how to on how to make the pencil launcher? Would be greatly appreciated. Even blueprints or models are fine.
ReplyDelete