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Thank you Donald. I am familiar with that stuff but wish I had the drawing for the left hand forward jury strut or the pitot installation. I suspect that one of those drawings likely has a specific alignment defined.
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dldihs wrote:
I just got my cub back from annual and I noticed that the pitot appears to be at a considerably different angle from the oncoming wind at level flight attitude. Perhaps this is normal but I think I recall it was relatively aligned with the slipstream in level flight. I have searched online and though the cub assembly and rigging manuals and have found nothing at all that defines this angle. I also noticed that the indicated airspeed is low by about 7 mph based on 2 way GPS as compared to before.
Does anyone have any authoritative information that sets its angle relative to either the under surface of the wing at the jury strut station or to the jury strut leading edge?
Thanks![/quote
Good question. Never thought about it. It seems the pitot tube should be aligned parallel with the bottom of the wing. That's the airspeed that generates the low pressure area on top of the wing which generates the lift. Check out www.youtube.com/watch?v=iZWtCW4sXc0 which I haven't studied prior to this post.
]
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FAR 91.225 (e) should help sort it out. As you said, an aircraft originally certificated without an electrical system, and which has not had an engine driven electrical power source added gets an exemption. Full disclosure, I do not hsve any legal training so take my comments on the FAR's with the usual healthy dose of scepticism!
Hope this helps, Bill
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Sorry if this is already on the forum somewhere - for the life of me - I can't figure out how to search the forum....
Can someone point me to an explanation of the ADS-B requirements and how it relates to airplanes certificated without an electrical system? Say - like a cub 
thanks
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Cub Dr. has the original stitching diagram and uses less stitching than the FAA manual requires.
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mikell.victor281@gmail.com wrote:
How many “Cub Clubs” have there been over the years? Answer:
The Cub Club is as active as it appears by this website. Below is a list from start to now. By this I mean beginning with the founder of the Cub Club.
No 1
John Bergeson
Cub Club Inc
www.cub-club.com
From No 1 May 1984
End No 101 Nov/Dec 2000
No 2
Sharon & Steve Krog
Cub Club
www.cubclub.org
From No 102 Jan/Feb 2001
End No 175 Mar/Apr 2013
No 3
Dana and Paul Osmanski
The Cub Club
new.cubclub.org
This email address is being protected from spambots. You need JavaScript enabled to view it.
From No 176 May/June 2013
To No 179 Nov/Dec 2013
No 4
Sharon & Steve Krog
Cub Club
www.cubclub.org
This email address is being protected from spambots. You need JavaScript enabled to view it.
From No 180 Mar/Apr 2014
To No 186 Jan/Feb 2016 (as of this writing)
My set of Cub Clues may be the only complete set in existence. I don't have the technical savvy to produce them electronically for the website to have so they can be downloaded. But I'm willing to make them available for someone interested in taking up this task. By making them available I don't mean I'm willing to send them off for this purpose. They are not leaving my possession in Bedford Indiana.. My phone is 812 275-5269. Thanks.
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I have been trying to purchase all back issues of Cub Clues and even talked with John and gave him my credit card information about a month ago. Now I can't get any response from anyone. Is the club still active. I still don't have the back issues
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Thanks for the feedback. I have found that with the flat fore and aft i got a poor signal front and back but good to the sides when aimed at the station. Have now mounted it with the edge fore and aft but have not had the time to test it much yet. A quick flight showed better fore and and aft reception but fairly weak with some noise. Will know more after a couple more tests.
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Put one in mine behind the baggage compartment. Works well, a little weak on the nose but mostly when using an AWOS station which have weak transmit signals anyway. Great antenna, sure beats having an ugly external antenna.
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Hello,
I just got my cub back from annual and I noticed that the pitot appears to be at a considerably different angle from the oncoming wind at level flight attitude. Perhaps this is normal but I think I recall it was relatively aligned with the slipstream in level flight. I have searched online and though the cub assembly and rigging manuals and have found nothing at all that defines this angle. I also noticed that the indicated airspeed is low by about 7 mph based on 2 way GPS as compared to before.
Does anyone have any authoritative information that sets its angle relative to either the under surface of the wing at the jury strut station or to the jury strut leading edge?
Thanks!
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Thanks for the reply. I'm still expermenting with it. With the flat side fore and aft it only picks up when facing 90 degrees to either side. I am trying it turned so it should transmit and receive heading to or from a station. if this doesn't work well enough will put in a ground plate and go to a conventional whip antenna. Time will tell.
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I had read various comments on the pros and cons of these antennas. So I tried one in the aft fuselage of a Taylorcraft BC12D. Installed in accordance with the manufacturers instructions. It worked, but not as well as I had hoped. I replaced it with a conventional antenna in the same location in the fuselage, with a ground plane. This works, but I still suspect an external antenna would function better. The aircraft structure seems to affect the radio signal. For instance, flying directly toward the station decreases reception compared to flying at right angles to the station. These are just my observations so far. And I readily admit to a very limited understanding of anything electronic. It's all pretty much magic to me.
Bill
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How does it work? Might make a good article for Cub Clues. I have one in the shop we may but this on but I won't be to that point until later in the fall.
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I installed one in another type aircraft, similar to a Cub. Just used a wooden slat of appropriate size as suggested in the manufacturer's instructions. Attached with Adel clamps where necessary. Fixed the antenna to the slat with a few wraps of electrical tape and a couple of tie wraps. An experienced avionics technician said the installation looked good to him.
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Hi John,
I have a clipped wing with a pressure cowl and you are welcome to check it out. I’m in Westerly, RI, ph. 401-212-0991
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Does anyone have exprience mounting one of the new 42" flexible antennas in a cub. I hve the manufactuers info and am opting for the behind the seat location. Any information would be appreciated. The antenna is made by Advanced Aircraft Electronics.
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Am i on the new website? Also not sure where to ask admin questions like my pics load with files and then wont show in folder? Thanks Tom Brown
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That looks about right to me. You may want to consider the double pulley trim. Make sure the jackscrew is not upside down!
-john-
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