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All Forums >> Radios, Batteries, Clubhouse and more >> Unusual R/C >> R/C Sky Diving >> RE: rcskydiving.com Beginner Jumper
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RE: rcskydiving.com Beginner Jumper - 6/29/2006 6:32:09 PM   
edge_pilot



Posts: 557
Joined: 3/9/2004
From: Lagrange, OH, USA
Status: offline 		Most of the guys drop them from trainers. Alot of Kadet seniors, Telemasters, and planes similar to these. I use a giant Stinger for my drop plane, this plane can take up 3 skydivers at once. Some use scale planes to make it more real. I have seen skydivers taken up on Stik's before. All in what you have or your buddy has. Just about anything that can carry the weight people will use.

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Dave Naylor
Owner of RCSkydiving
We Specialize in Electric Flight!

(in reply to N12932)
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RE: rcskydiving.com Beginner Jumper - 6/30/2006 2:07:05 AM   
N12932


 

Posts: 45
Joined: 12/30/2005
From: West Chester, PA, USA
Status: offline 		ok, thanks for the info on planes

(in reply to edge_pilot)
       Post #: 27

RE: rcskydiving.com Beginner Jumper - 7/3/2006 2:56:49 AM   
Huntster


 

Posts: 28
Joined: 6/5/2002
From: Pensacola, FL, USA
Status: offline 		My issue with the trainers that I have was the ground clearance...That is why I used my 1/4 Scale plane. I was also thinking that if you could mount the guy up on top of the wing using the rubber bands that the wing uses to hold the drop box. and then the pilot rolls inverted when it is time to drop and then Super Dave (that is my guys name after he burned in on our first drop ) will be on his way, then the trainer rolls right side up and then lands for another load.

(in reply to N12932)
       Post #: 28

RE: rcskydiving.com Beginner Jumper - 7/18/2006 3:14:02 PM   
g_boxwood



Posts: 341
Joined: 1/28/2005
From: Torino, ITALY
Status: offline 		Today I finally got my drop plane.

It is a MULTIPLEX BIG LIFT II, almost 100" span, around 5 kilos dry and powered by a Zenoah G38.

It should handle my jumper fairly easily, probably more than one if... I just had more than one ;-) .

It is an ARC but will be queued right now.

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Giacomo 'g_boxwood' Bosso

(in reply to Huntster)
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RE: rcskydiving.com Beginner Jumper - 7/18/2006 4:00:47 PM   
edge_pilot



Posts: 557
Joined: 3/9/2004
From: Lagrange, OH, USA
Status: offline 		Sounds like a nice plane for jumping! I beleave it will take up 3 atleast, my plane has less wing area than you and it's no problem for me. Anytime you would like to add to that jumper family just let me know. Have fun and may all your jumps be under canopy!

_____________________________

Dave Naylor
Owner of RCSkydiving
We Specialize in Electric Flight!

(in reply to g_boxwood)
       Post #: 30

RE: rcskydiving.com Beginner Jumper - 7/18/2006 6:30:35 PM   
g_boxwood



Posts: 341
Joined: 1/28/2005
From: Torino, ITALY
Status: offline 		I'll keep you updated!

Just in case my family grows... where did you place the boxes for the other 2? Ok, under the wings but where exactly. I have flaps.

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Giacomo 'g_boxwood' Bosso

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RE: rcskydiving.com Beginner Jumper - 7/18/2006 7:11:24 PM   
edge_pilot



Posts: 557
Joined: 3/9/2004
From: Lagrange, OH, USA
Status: offline 		Here are a few pics of my drop rig. All custom built by us.

Attachments
Click to see fullsize image.
Click for fullsize 		Click to see fullsize image.
Click for fullsize


_____________________________

Dave Naylor
Owner of RCSkydiving
We Specialize in Electric Flight!

(in reply to g_boxwood)
       Post #: 32

RE: rcskydiving.com Beginner Jumper - 7/19/2006 9:07:48 AM   
g_boxwood



Posts: 341
Joined: 1/28/2005
From: Torino, ITALY
Status: offline 		On the CG, aren't they?

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Giacomo 'g_boxwood' Bosso

(in reply to edge_pilot)
       Post #: 33

RE: rcskydiving.com Beginner Jumper - 7/19/2006 12:24:28 PM   
edge_pilot



Posts: 557
Joined: 3/9/2004
From: Lagrange, OH, USA
Status: offline 		Not quite, but as close as we can get them.

_____________________________

Dave Naylor
Owner of RCSkydiving
We Specialize in Electric Flight!

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       Post #: 34

RE: rcskydiving.com Beginner Jumper - 8/24/2006 6:21:12 PM   
Tom in Cincy


 

Posts: 174
Joined: 5/18/2002
From: Cincinnati, OH, USA
Status: offline 		Giacomo, did you drop your man yet? I bought mine a year ago. Of the first dozen jumps, only 2 opened up fully. The rest opened up to some extent but were of course uncontrollable. I have just re-motored my Senior Telemaster with a 90 4-stroke. I also have installed an Eagletree Seagull wireless telemetry system to monitor the planes altitude. The final modification for this year is a FMA Co-Pilot to keep the wings level. When the plane was up over 500' and right over head the pilot was unsure of its orientation. It also allows the jump plane pilot to watch the jumpers descent for a while without risking diving /spinning the plane.

Hopefully I will get some successful jumps this season.
T.P

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RE: rcskydiving.com Beginner Jumper - 8/24/2006 9:03:44 PM   
R/C Skydiver



Posts: 161
Joined: 8/7/2002
From: Smiths, AL, USA
Status: offline 		TP
You should try to go to Muncie on Sep 16 & 17 for a skydiver rally and competition. We should have about 20-25 guys there with all sorts of jumpers and jump planes. Dave Naylor has made a great suggestion that we have a forum at the site for everyone to exchange info and help new or potential RC Skydivers. Come on over and get all your questions answered! Look on page 177 of MA Mag for the rally listing and details. It's a lot of fun!!!

< Message edited by R/C Skydiver -- 8/24/2006 11:03:08 PM >

(in reply to Tom in Cincy)
       Post #: 36

RE: rcskydiving.com Beginner Jumper - 8/28/2006 5:07:18 PM   
g_boxwood



Posts: 341
Joined: 1/28/2005
From: Torino, ITALY
Status: offline
quote:

ORIGINAL: Tom in Cincy

Giacomo, did you drop your man yet?


Sorry for the dealy in the reply Tom... no, I didn't drop the dude yet, focused on seaplanes at the moment and still have to get the drop plane ready to fly (have to buy the G38 for it).


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Giacomo 'g_boxwood' Bosso

(in reply to Tom in Cincy)
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RE: rcskydiving.com Beginner Jumper - 3/25/2008 12:59:50 PM   
g_boxwood



Posts: 341
Joined: 1/28/2005
From: Torino, ITALY
Status: offline 		Hi gentlemen!

I still have to drop my guy but I took some time to update him before it is too late!

I read the Hitec HS-77BB low-profile servos were not enough so I switched to higher torque BlueBird BMS 705 MG.

I also re-installed the 'internals' to correct some mishaps I did it at first: the servos are now all the way back and a little further out so I can lower both arms more before the servo arms touch.





I also added some beard to my guy to have him a little different from the others...



In the meanitme I'm getting my Big Lift II ready

http://www.rcuniverse.com/forum/m_6912382/anchors_6912382/mpage_1/key_/anchor/tm.htm

but I think I'll drop it earlier using a friend's plane (another BL II).

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Giacomo 'g_boxwood' Bosso

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RE: rcskydiving.com Beginner Jumper - 3/26/2008 6:00:08 PM   
g_boxwood



Posts: 341
Joined: 1/28/2005
From: Torino, ITALY
Status: offline 		I need your advise!

I'd like to locate the drop box inside the fuse but it interferes with the steel plate the wing struts connect to. So I can mount the drop box onto the outside or inside the fuse but a less closer to the CG than it is possible with the outside mounting.

Let's sum up with the 3 mounting options

1. EXTERBAL drop box right behind the main gear = let's say neutral to the CG



2. EXTERNAL drop box over the main gear = slightly negative pitching moment?



3. INTERNAL drop box right behind the wing struts attachment bracket = positive pitching moment



Do you think the trimming may deal with this last option?

The CG is located right in front of the long hole

Thank you for your advises!

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Giacomo 'g_boxwood' Bosso

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RE: rcskydiving.com Beginner Jumper - 3/26/2008 8:26:50 PM   
edge_pilot



Posts: 557
Joined: 3/9/2004
From: Lagrange, OH, USA
Status: offline 		In my own opinion you should not put the drop box in front of the CG. If you want a little behind it is not a problem, the best of course being right on the CG.

_____________________________

Dave Naylor
Owner of RCSkydiving
We Specialize in Electric Flight!

(in reply to g_boxwood)
       Post #: 40