原帖由 michaelredknapp 於 4-8-2010 01:22 發表
icic
thank you very much!
u r really helpful, may i ask my last question, as u know i want the 24" in the very beginning, in fact i want it even longer,
but now i know the longest barrel is 2 ...
原帖由 Elf 於 4-8-2010 02:35 發表
the m4 ptw cylinder is 66 mm long x 6mm radius
volume of cylinder = πr^2*height - 7460mm^2
volume of a 509mm barrel = 509 mm long x 3.01 mm radius
volume = 14384mm^2
so basically there will b ...
原帖由 michaelredknapp 於 3-8-2010 23:13 發表
Hi, everybody,
i'm new in air soft world, can anyone tell where i can buy the sniper kit for PTW M4??
i went to kong wah st. today, n the sales there told me the king arms kit won't fit in my PTW, ...
原帖由 Elf 於 4-8-2010 02:43 發表
講得簡單D就係話, 個氣筒內的空氣唔夠係BB彈離開內管前充滿氣. 拍頭會跟住向後拉, 吸番內管入面既空氣入去.
你會見到BB彈初速會低左, 同埋彈道十分之唔stable.
AEG都會有同一現像, 試下放M4 cylinder落條509管你就 ...
原帖由 michaelredknapp 於 4-8-2010 03:01 發表
yes, i'm michael!!
The only warrior fight with no gun.......................but a walkie talkie and team mate
原帖由 Elf 於 4-8-2010 02:35 發表
the m4 ptw cylinder is 66 mm long x 6mm radius
volume of cylinder = πr^2*height - 7460mm^2
volume of a 509mm barrel = 509 mm long x 3.01 mm radius
volume = 14384mm^2
so basically there will b ...
原帖由 CPK 於 5-8-2010 14:19 發表
師兄,PTW 筒的半徑一定唔止 6mm,條數有問題喎。
我度過手頭上的 「Systema Professional Challenge Kit 2008 - Parts List (Template 1/1 Scale)」,泵頭 O-ring 直徑 2.3 cm。
原帖由 CPK 於 5-8-2010 16:36 發表
等小第獻醜
氣筒內半徑約 1.15 cm
故氣筒體積 = r^2 X π X 長 = 1.15 X 1.15 X π X 6.6 = 27.42 cc
槍管內半徑約 3.01 mm = 0.301 cm
509 mm 管體積 = 0.301 X 0.301 X π X 50.9 = 14.49 cc
因為氣 ...
原帖由 Elf 於 6-8-2010 00:22 發表
多謝師兄指教. 原來我計錯數, 量錯cylinder半徑.
外徑為25.5mm, 外壁大約2.4/5.1mm, 內徑=18mm左右
cylinder volume = π(18^2)*66 = 67k mm^2
咁計我就錯啦. 多謝CPK計指出錯處, 失禮晒
原帖由 cw2493 於 5-8-2010 19:08 發表
CPK Hing,
How about the volume for the gold / blue / black cylinder?
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