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Mar 19, 2002, 01:56 PM
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East Hartford, CT. U.S.A.
Joined Jan 2001
63 Posts
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New PVC Pedal Launcher
I recently built a PVC (3/4") Pedal Launcher similar to the The PVC Pedal Launcher that was featured in the September 2001 S&E modeler. It has worked out great and was relatively inexpensive to build. It now has an approximate 15 degree incline (increased from 7.5 degrees in photo) and a 20 foot bungee providing the power. I've used it for Multiplex Picojet Combat and Multiplex Twinjet so far and I plan to use it for a Kyosho T33 Shootingstar EDF.
On the launcher in the photo is a Wallyworld $3.94 special weighted with 8 "D" cell batteries to approximate the launch weight of the Twinjet. The Launcher projected this flying test bed OK, but there was no radio control of the foam glider to prevent it's demise on landing. Three test launches and the Wallyworld foam glider's fuselage gave it's life for the cause. I sacraficed the test bed to save the flying aircraft. If there is any interest, I'll post some close ups of the launcher. 
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Mar 19, 2002, 02:20 PM
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Los Angeles
Joined Jan 2002
948 Posts
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I'd like to see more!
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Mar 19, 2002, 02:26 PM
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Toledo Ohio, USA!
Joined Dec 2001
646 Posts
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I WOULD LIKE TO SEE LOTS MORE!!! I need something to launch my wally glider (RC conversion) and my Razor! I have been wanting one but couldnt come up with a design. THANK YOU!!
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Mar 19, 2002, 03:08 PM
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United States, CA, Bear Valley Springs
Joined Feb 2000
24,570 Posts
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More !
mw |
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Mar 19, 2002, 03:56 PM
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Stratford Sikorsky, Connecticut, United States
Joined Dec 2001
6,711 Posts
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Yes Please.
Killer |
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Mar 19, 2002, 05:00 PM
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colorado @ 5500feet
Joined Sep 2001
1,036 Posts
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launcher looks cool, it there a reason why you don't just bungee launch it by hand or does that have something to do with the Pedal part. I guess I am missing something? I would like to learn more.
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Mar 19, 2002, 08:12 PM
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East Hartford, CT. U.S.A.
Joined Jan 2001
63 Posts
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Parts List for New PVC Pedal Launcher
I've listed the parts I used to build the 3/4" PVC Pedal Launcher. The launcher can be built to suit your application, but mine is 2' wide by 5' long to accommadate several planes.
3 @ 3/4" T 2 @ 3/4" X (four connection cross joiners) 5 @ 3/4" end caps 6 @ 3/4" 90's 4 @ 1" T's 4 @ 1" to 3/4" adapters 3 @ 10" 3/4" lengths of PVC 1 @ small can of PVC cement 2 @ 3/4" metal pipe brackets 1 @ 3/8" X 3" bolt (unthreaded for release pin) 2 @ 1" welded steel rings 3 feet nylon cord 10 feet foam pipe insulation 3 @ plasstic tent stakes heavy duty 20 feet bungee or surgical tubing |
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Mar 19, 2002, 08:18 PM
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East Hartford, CT. U.S.A.
Joined Jan 2001
63 Posts
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Pedal Launcher Release Pivot Assembly
Pivot assembly detail
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Mar 19, 2002, 08:20 PM
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East Hartford, CT. U.S.A.
Joined Jan 2001
63 Posts
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Pedal Launcher Release Pin Assembly
Pedal Launcher Release Pin Assembly detail
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Mar 19, 2002, 08:23 PM
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East Hartford, CT. U.S.A.
Joined Jan 2001
63 Posts
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Pedal Launcher Release Pin and hold down
Pedal Launcher Release Pin and hold down detail
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Mar 19, 2002, 08:24 PM
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Los Angeles
Joined Jan 2002
948 Posts
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Looks good so far - Keep it comin' -
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Mar 19, 2002, 08:25 PM
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East Hartford, CT. U.S.A.
Joined Jan 2001
63 Posts
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Pedal Launcher Release Pin Attachment
Pedal Launcher Release Pin Attachment detail
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Mar 19, 2002, 08:28 PM
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East Hartford, CT. U.S.A.
Joined Jan 2001
63 Posts
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Pedal Launcher Ring Attached to PJC
Pedal Launcher Ring Attached to PJC
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Mar 19, 2002, 08:32 PM
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East Hartford, CT. U.S.A.
Joined Jan 2001
63 Posts
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Pedal Launcher Release Pin Bottom View
Pedal Launcher Release Pin Bottom View detail
I hope these photos are helpful to those Ezoners that may want to build a similar launcher. I'll try to answer any questions |
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Mar 19, 2002, 08:37 PM
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Los Angeles
Joined Jan 2002
948 Posts
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I'm still not sure what "catapults" it - is that white rope bungee?
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