flyboy61045

My Feedback: (10)

HELP
I just got a Jepe dolly / bungee lancher and I have no idea how it work's were to put the hook,where to get a foot pedal or how to use it. No one in my aera fly's the small ducted fan planes.Never even seen one used in person.They don't come with instuctions so I am in a jam.I could use a good set of pictures if there are any out there.
Any help out there?
Thank's John.

jetsetter

went through the same problem. Maybe this will help.

[link]http://www.rcuniverse.com/forum/JEPE_dolly_HELP/m_2694837/tm.htm[/link]

flyboy61045

My Feedback: (10)

Thanks Jetsetter
But still need more help ,what kind of hook do I need on the plane?And were do I get a release.

[sm=confused.gif]

Chris True

My Feedback: (14)

The hook can be a piece of 3/32" or 1/8" music wire with the hole drilled such that the wire angles back 30 degrees or so.

The foot release can be built from two pieces of 1/4" ply, a 1*2" block, mushroom headed 1/4*20 bolt and one other smooth shanked bolt with the head cut off.



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The 2 pieces of ply are joined at the back, the bolt and pin are secured to the bottom piece and pass through holes in the top piece. The ring from the dolly / bungee goes over the pin, stepping on the mushroom headed bolt flexes the bottom ply piece until the pin clears the top plate and the ring releases. At the back where the ply plates are joined you drill a 1/2" hole for a peg to secure it to the ground. The whole thing is about 4" wide and a foot long.

flyboy61045

My Feedback: (10)

Thanks for the help, was that a picture you sent along with your reply? If it was I did not get it,I could use A diagram of it, if it is not to much trouble.And thank you again.

Chris True

My Feedback: (14)

Yes, it was a diagram. Various ypes of releases:

http://www.rcgroups.com/links/index.php?id=3995
http://www.ef-uk.net/data/images/foot-release.bmp
http://www.aerofoam.com/hosemonstercatapult.html
http://www.geocities.com/stormeflyers/launcher.html
http://www.angelfire.com/oh/propman/ME_P1101_info.html

The last pic in the last link shows the simple wood mechanism I am referring to. Part of it at least.

flyboy61045

My Feedback: (10)

Thank's Chris
That's just what I needed ,now I can get started makeing one.I have been flying for a long time but never had a jet ,and no one around here has one of these planes so I guess I will be the first.
Thank's again. John[8D]

Scramble

What about this ?

c-grain

Scramble,That's the simplest,easiest,cheapest and quickest to build approach I've ever seen!

Scramble

c-grain

Your comment makes me immensely proud so I'm going to reward you with pics of the peripheric equipment (of which I am also extremely proud :

See how happy I am with myself looking at the contraption



Proof it works



And the best thing is that those tubes are not even glued together (O rings inside). Outer tubes in grey also PVC, for rigidity and riding over the junction steps, just slid over white ones. Quite flexible for transportation and adjustments (pedal tip goes over transverse tube)