http://www.europaowners.org/gallery2/v/Begin-06-2003/Landing+gear/FLAPDRIVE/PUSHPULLCABLE/ en-us Gallery 2 RSS Module, version 1.1.8 Tue, 14 Apr 2026 02:07:53 +0000 120 http://www.europaowners.org/gallery2/d/387811-5/PUSHPULLCABLE.jpg http://www.europaowners.org/gallery2/v/Begin-06-2003/Landing+gear/FLAPDRIVE/PUSHPULLCABLE/ http://www.europaowners.org/gallery2/v/Begin-06-2003/Landing+gear/FLAPDRIVE/PUSHPULLCABLE/DSC00764.JPG.html http://www.europaowners.org/gallery2/v/Begin-06-2003/Landing+gear/FLAPDRIVE/PUSHPULLCABLE/DSC00764.JPG.html
Since I had Eric's attention, I had him run calculations for putting an extension arm on a torque wrench.
I believe you need to do this to tighten Airmaster mounting bolts.
Bottom line is if you put torque wrench at 90 degrees to the extension, you can read exact values on the wrench. Length of arm will not affect reading.

Y13-12-02]]> rparigoris photo Mon, 02 Dec 2013 22:25:02 +0000 http://www.europaowners.org/gallery2/v/Begin-06-2003/Landing+gear/FLAPDRIVE/PUSHPULLCABLE/DSC00763.JPG.html http://www.europaowners.org/gallery2/v/Begin-06-2003/Landing+gear/FLAPDRIVE/PUSHPULLCABLE/DSC00763.JPG.html
This shows approximately how much side bending force there is for a given angle off of 180 degrees exerting 100lb force, total length is 48", 24" leg on each side of the bend:
0 degrees 0.0' lbs
15 degrees 26.1' lbs
30 degrees 51.8' lbs
45 degrees 76.5' lbs
60 degrees 100.0'lbs
75 degrees 121.8' lbs
80 degrees 128.6' lbs
90 degrees 141.4' lbs

I will check with Eric, I think " lbs may be incorrect?

I checked with Eric, it was supposed to be Foot Lbs. so I changed this note.

Y13-12-02]]> rparigoris photo Tue, 03 Dec 2013 08:41:40 +0000 http://www.europaowners.org/gallery2/v/Begin-06-2003/Landing+gear/FLAPDRIVE/PUSHPULLCABLE/DSC00762.JPG.html http://www.europaowners.org/gallery2/v/Begin-06-2003/Landing+gear/FLAPDRIVE/PUSHPULLCABLE/DSC00762.JPG.html
I wanted force using 4" arm and 8" arm, the numbers are the same as the prior using a 6" arm except there is different deflection, so that will skew things a little.

Y13-12-02]]> rparigoris photo Mon, 02 Dec 2013 21:52:22 +0000 http://www.europaowners.org/gallery2/v/Begin-06-2003/Landing+gear/FLAPDRIVE/PUSHPULLCABLE/DSC00761.JPG.html http://www.europaowners.org/gallery2/v/Begin-06-2003/Landing+gear/FLAPDRIVE/PUSHPULLCABLE/DSC00761.JPG.html
I made up deflection angles, so this is only ballpark numbers.
Deflection at 45 degrees requires ~ 15% additional force.
Deflection at 60 degrees requires ~ 30% additional force.

Y13-12-02]]> rparigoris photo Mon, 02 Dec 2013 21:49:37 +0000 http://www.europaowners.org/gallery2/v/Begin-06-2003/Landing+gear/FLAPDRIVE/PUSHPULLCABLE/DSC00745.JPG.html http://www.europaowners.org/gallery2/v/Begin-06-2003/Landing+gear/FLAPDRIVE/PUSHPULLCABLE/DSC00745.JPG.html
You can't see the heading on the first column, it's travel.

Y13-11-27]]> rparigoris photo Fri, 29 Nov 2013 02:11:09 +0000 http://www.europaowners.org/gallery2/v/Begin-06-2003/Landing+gear/FLAPDRIVE/PUSHPULLCABLE/DSC00744.JPG.html http://www.europaowners.org/gallery2/v/Begin-06-2003/Landing+gear/FLAPDRIVE/PUSHPULLCABLE/DSC00744.JPG.html
Speaking with Cory, if you order a 4" travel cable, the cable you get should have a minimum of 4" travel, but could be up to 4+5/16". I think he was saying that your cable can come in minimum the size you order, but could be longer if the travel ends up being more, thus you could get a cable end to end that is 5/16" longer than you ordered.

I ordered a Series 6 cable 57+13/16" in length (57.813" long). I highly recommend you put longer air-brake cable in situation with rear mount installed and length replicating the 4" specifications and measure your bird. It may be slightly different from mine. Cost was $96 plus UPS Ground to Long Island NY a TTL. of $108.00

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UPDATE ON CABLE LENGTH Y13-12-15:
After diddling with things for a few weeks, the length 57.813" is a bit too short.
I needed to install a coupler and threaded rod on the front to lengthen allowing for 9.5 threads of engagement of the 5/16-24 threaded ends.
The length I would order is 58.475" (tip of threaded rod to tip of threaded rod) of Series 6 cable with 4" of travel. The aft side would need to be cut down to .700" (by you, don't forget to make chamfer at a 45 degree angle so the first thread is not super flimsy).
See other Albums to describe aft pillow block and thread extender.

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Keep in mind since the pillow block is close to the rear lift pin tie-bar, thus keeping the pillow block as far aft as you can is the thing to do. Since there is .312" of threads sticking out of the rear male threaded cable (this is with Heim fitting bottomed and jam nut installed), my cable length I ordered is actually .312" longer than I need because I'm going to hack off .312" on the aft side threaded rod.

You will notice the "B" dimension is mid bulkhead threads to the end of the male threaded rod at mid travel. That's 9.500" on a 4" travel according to the spec. sheet. I subtracted 1/2 the travel and came up with 7.500". So with the cable fully pushed forward, the dimension I used for my rear mount was 7.5" anticipating lopping off .312".

When I ordered the cable I asked that at least one side of my cable would be no more than 7.500". Anyway I will install that side that is no more than 7.500" on the aft side (after I cut off .312").

Quick note on cutting off something threaded:
The threads have a 60 degree angle on them. If after you cut off and shorten the length, if you were to sand, grind or file a 60 degree taper on the end, it will leave a wicked sharp and easy to distort first thread. It's a "Much More Better" plan to make a 45 degree taper! This way the sharp edge is reduced.

Y13-11-27

Cable arrived Y13-12-03.
With 2 extra nuts and 2 extra lock washers (probably not be using these, so it should be a bit lighter),
weight comes in at:
1 lb. 10.3 oz. (will weigh completed assembly just before final install).
Deflection is probably 8 degrees in every direction. Probably double the deflection (or more) compared to the air-brake cable.
One side came in a little less than my requested no more than 7.5". One aspect that accomplished this task was by threading the aluminium close to the crimp.
The throw comes in at a little over 4".
Overall length is very close to what I requested of 57.813" tip to tip.

Y13-12-04]]> rparigoris photo Mon, 16 Dec 2013 03:15:45 +0000 http://www.europaowners.org/gallery2/v/Begin-06-2003/Landing+gear/FLAPDRIVE/PUSHPULLCABLE/IMG_0233.JPG.html http://www.europaowners.org/gallery2/v/Begin-06-2003/Landing+gear/FLAPDRIVE/PUSHPULLCABLE/IMG_0233.JPG.html
We used the Series 6 air-brake cables to determine feasibility and precise length cable we need.
The air-brake cables can only handle about 4 degrees of deflection in each direction. In other words the ability of the cable to follow other than a perfect in line pull or push.
The Felstar cable we will use has the ability to handle about 8 degrees of deflection in all directions.
This means if we can make the air-brake cable happy, then Felstar cable will be very happy.
We used the longer air-brake cable for the aft attachment and the shorter cable for the front attachment.
When connected to the flap cross tube, I adjusted things to replicate the Felstar cable. The only minor snafu is the air-brake cable only has a 3" travel where we need a 4" travel. We were happy to see things work and route the cable forward. The neat thing was that the aft cable was a bit less than a foot short of what we needed, but the amount needed was a perfectly straight run the the front attachment, so we measured what extra length we needed, then added it to the length of the air-brake cable to arrive at the precise length we need.
We will use bulkhead mounting on both ends.

4" travel rated at 170lbs. push and 400lbs. pull. Since the cable is routed very close to straight, when I asked a representative how much load in push did he think I would need to exert to fail the cable, his thought was it would probably be more than 500 lbs.

Some issues to overcome:

** The back attachment needs more ability to tolerate deflection, so we are using a plastic self aligning pillow block. The pitch tube tunnel will get reinforcement to hold the pillow block bracket in place (Three 3/16" screws, 4130 Chrome Moly bracket). The cable will be inserted from the back towards the front with the pillow block and bracket already installed on the cable.
NOTE: I think on an already built aircraft there is a good chance you could cut out the old push rod and remove it through the gear tunnel and save yourself an engine removal.

** Since the rear attachment can articulate, the cable needs the ability to move fore and aft just below the spars, so we are installing a clamp holder that will allow a little movement (Adel clamp and 2024 Aluminium bracket, Two 3/16" screws will mount the holder just aft of the fuel selector access cover).

** The front attachment is pretty straight forward, it will remain in a fixed position as the front attachment deflects less than the ability of the cable to tolerate. The wheel tunnel will be reinforced to hold the front bracket (Two 1/4-28 screws, 4130 Chrome Moly bracket).

Y13-11-27]]> rparigoris photo Thu, 28 Nov 2013 04:54:49 +0000