Jekyll 60 elevator pushrod bushing???
12-01-2010 | 04:05 PM
#26
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From: Knoxville,
TN
RE: Jekyll 60 elevator pushrod bushing???
Guys,
I'm home and will did out a set of plans in the morning that show this and scan it in and also see if i have the directions how to make the pushrod and bushing....
scott
I'm home and will did out a set of plans in the morning that show this and scan it in and also see if i have the directions how to make the pushrod and bushing....
scott
12-01-2010 | 04:24 PM
#27
RE: Jekyll 60 elevator pushrod bushing???
ORIGINAL: doxilia
Cees,
the single center actuated system where the elevator halves are joined (CL flap style) is an elegant solution in some cases. This of course, is for those who desire no independent trim adjustment.
The main problem I see with this system though is that with glass fuses, maintenance is basically non-existent. Because the installation of this system requires you to first pass the joined elevators through the stab opening, then link up and finally followed by the stab itself, once you lock the stab in position there is no access to the linkage. I suppose one can argue that if done properly one needs no access to the linkage but if for whatever reason you did - you would find yourself in one of those [:-] situations - if you know what I mean.
For wood fuses, it would be simple enough to build in a maintenance hatch as is done on several scale models using this system.
David.
Cees,
the single center actuated system where the elevator halves are joined (CL flap style) is an elegant solution in some cases. This of course, is for those who desire no independent trim adjustment.
The main problem I see with this system though is that with glass fuses, maintenance is basically non-existent. Because the installation of this system requires you to first pass the joined elevators through the stab opening, then link up and finally followed by the stab itself, once you lock the stab in position there is no access to the linkage. I suppose one can argue that if done properly one needs no access to the linkage but if for whatever reason you did - you would find yourself in one of those [:-] situations - if you know what I mean.
For wood fuses, it would be simple enough to build in a maintenance hatch as is done on several scale models using this system.
David.
My step by step thinking.
1 I always did want me to see in one situation and that is on top of the podium. Only play the game when you want to win the match and for that use all the tricks. There already are enough limitation, dimensions, power, weight, accessories.
2 No levers with pivots, links, piano wire etc visible if it isn’t strictly needed. We are not creating a Christmas tree with whistles and bells, it’s all drag and disturbing of flow. Keep your money in the pocket so another cannot buy a tree himself either.
3 Only use the best system you can make not buy..
Trimming is for people that cannot built straight, strong and symmetrical,
When trimming is not structural needed the system also cannot misalign. I can hang 1,1 kg on the TE of one aileron without a problem, that is the quarter of the weight of the total plane! When you cannot do this with your plane it is too fragile to use outside in the contest. The enemy will misalign your elevator when you are not careful!
4 Do you see a hatch in the gearbox of the steering system of your car, in a servo? No needed anymore in 2010 when using the right materials.
5 Less components less troubles, one good servo in the centre of gravity.
6 There are only 2 pivots in my system and none of them misalign the stab halves, in a two servo system there are 4 and the play of all do misalign the halves.
7 If I want I can use a ball bearing in that single pivot, Why not we all are talking about BB?
8 Servo speed? Nonsense, synchronization of the halve that’s what counts and is much more important.
9 And if you really want to win? You can mount it in a glass fuselage too see the step by step picture.
If you want a try-out, we can help you and show much more details.
Look for example this post:
http://www.rcuniverse.com/forum/fb.asp?m=8051076
or this
http://www.rcuniverse.com/forum/fb.asp?m=8056770
Cees
12-01-2010 | 07:39 PM
#28
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RE: Jekyll 60 elevator pushrod bushing???
Cees,
I do understand how to install it, I wasn't requesting any detailed explanations. Your diagrams are nice but quite unnecessary. That system is considerably more complicated than simply passing the elevator assembly through the stab opening - no need to open up the glass fuse rear. In some cases, the stab is no where close to the rudder hinge line so the system you illustrate doesn't really work as a general method. One doesn't want to split the fuse rear just to pass a control horn.
My point still stands though. Any maintenance that needs to be given is a nil option. And yes, one does have access to car gear boxes - I've pulled one off, fixed it and reinstalled one myself.
I'll keep my linkages maintenable if that's alright.
David.
I do understand how to install it, I wasn't requesting any detailed explanations. Your diagrams are nice but quite unnecessary. That system is considerably more complicated than simply passing the elevator assembly through the stab opening - no need to open up the glass fuse rear. In some cases, the stab is no where close to the rudder hinge line so the system you illustrate doesn't really work as a general method. One doesn't want to split the fuse rear just to pass a control horn.
My point still stands though. Any maintenance that needs to be given is a nil option. And yes, one does have access to car gear boxes - I've pulled one off, fixed it and reinstalled one myself.
I'll keep my linkages maintenable if that's alright.
David.
12-02-2010 | 01:00 AM
#29
RE: Jekyll 60 elevator pushrod bushing???
David,
Mastertech did show a summery of several methods, but did forget one of he methods that also could be used in this plane.
We did see this system in most successful planes of classic pattern flying (and the real aviation).
I did make an add to show this system and a second with some more technical explanation for people who are interested.
For me it is the goal of this forum to show and learn about classic pattern flying and Ilikebipes the owner of the thread who has to make the choice.
If he want to use the system I can show him much more information and how to make a system, I am an engineer.
It is what Mastertech did write:
All in all every system has it's plus and minus. Pick what works for you
Cees
Mastertech did show a summery of several methods, but did forget one of he methods that also could be used in this plane.
We did see this system in most successful planes of classic pattern flying (and the real aviation).
I did make an add to show this system and a second with some more technical explanation for people who are interested.
For me it is the goal of this forum to show and learn about classic pattern flying and Ilikebipes the owner of the thread who has to make the choice.
If he want to use the system I can show him much more information and how to make a system, I am an engineer.
It is what Mastertech did write:
All in all every system has it's plus and minus. Pick what works for you
Cees
12-02-2010 | 09:29 AM
#30
My Feedback: (3)
RE: Jekyll 60 elevator pushrod bushing???
Cees,
fair enough - I might have overreacted.
Brian was interested in the specific bushing method used in the Jekyll and a number of other pattern ships of the time. I didn't want to get too off topic with linkage systems that are inaccessible in glass fuse models such as the Jekyll.
David.
fair enough - I might have overreacted.
Brian was interested in the specific bushing method used in the Jekyll and a number of other pattern ships of the time. I didn't want to get too off topic with linkage systems that are inaccessible in glass fuse models such as the Jekyll.
David.
12-03-2010 | 03:35 AM
#31
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From: hill city, SD
RE: Jekyll 60 elevator pushrod bushing???
wow.. this one is really getting beating down.
So I thiought I might steal this from an old thread. Sorry not really on topic about the Jekyll's elev. push rod set up, but I think all will enjoy watching Chip fly his Jekyll.
http://www.youtube.com/watch?v=tWSwCendigY
DM
So I thiought I might steal this from an old thread. Sorry not really on topic about the Jekyll's elev. push rod set up, but I think all will enjoy watching Chip fly his Jekyll.
http://www.youtube.com/watch?v=tWSwCendigY
DM
