BeechTalk - BT - FS: Comant CI 120 Blade Antennas and combiner

Username Protected · **Posted:** 28 Dec 2024, 18:12

Blade antennas for your Bonanza or Baron to delete the Flying V antenna.

Includes the CI 120-3 Combiner and cables

Never got to this project so it’s for sale.

$950 plus shipping

Username Protected · **Posted:** 29 Dec 2024, 14:37

I'm interested in doing this on my C55. Does anyone have any experience on what kind of project this is? Is it worth doing? We are slowing upgrading this baron over the next few years. Interior this year. Paint possibly the next, then avionics.

Scott

Username Protected · **Posted:** 29 Dec 2024, 14:42

Here’s a fun Article on the blade antennas.

https://www.csobeech.com/nav-blades.html

Username Protected · **Posted:** 29 Dec 2024, 14:54

Username Protected wrote:

I'm interested in doing this on my C55. Does anyone have any experience on what kind of project this is? Is it worth doing? We are slowing upgrading this baron over the next few years. Interior this year. Paint possibly the next, then avionics.

Scott

It’s a fair amount of work on a C55 or any other Baron not factory equipped with blade nav antennas. An opening needs to made on the vertical stabilizer for access and installation of the doublers. Then you have the long cable run up to the avionics panel. All takes time but any good metal A&P could be trusted with the job. Less hassle but not as cosmetically desirable is to mount them on the aft fuselage under the horizontal stabilizers.

Username Protected · **Posted:** 29 Dec 2024, 20:33

Username Protected wrote:

Here’s a fun Article on the blade antennas.

https://www.csobeech.com/nav-blades.html

Thank you Scott! I'll take a look.

Scott

Username Protected · **Posted:** 29 Dec 2024, 20:33

Username Protected wrote:

I'm interested in doing this on my C55. Does anyone have any experience on what kind of project this is? Is it worth doing? We are slowing upgrading this baron over the next few years. Interior this year. Paint possibly the next, then avionics.

Scott

It’s a fair amount of work on a C55 or any other Baron not factory equipped with blade nav antennas. An opening needs to made on the vertical stabilizer for access and installation of the doublers. Then you have the long cable run up to the avionics panel. All takes time but any good metal A&P could be trusted with the job. Less hassle but not as cosmetically desirable is to mount them on the aft fuselage under the horizontal stabilizers.

Username Protected · **Posted:** 29 Dec 2024, 22:30

Here are some photos that show the two possible installations. No access panel needs to be cut if the blade antennas are installed on the aft fuselage.

Username Protected · **Posted:** 01 Jan 2025, 07:53

Hi Scott,

I can’t send you a private message for some reason. Does this come with an 8130?

Username Protected · **Posted:** 01 Jan 2025, 10:38

Unfortunately I have no 8130.

Username Protected · **Posted:** 01 Jan 2025, 13:09

Tso part

No 8130 needed

Cork seal is in good shape

Username Protected · **Posted:** 02 Jan 2025, 15:56

"Depends", seems like a fair answer. I had the cat whiskers on my K35, so the cable was already back there. Just bucked some rivets for the doubler with my A&P and put the blades on (that was after a fair amount of reading and measuring the location & angle). Still, with the cable back there already, it was pretty easy as far as upgrades go.

Username Protected · **Posted:** 02 Jan 2025, 17:55

Username Protected wrote:

"Depends", seems like a fair answer. I had the cat whiskers on my K35, so the cable was already back there. Just bucked some rivets for the doubler with my A&P and put the blades on (that was after a fair amount of reading and measuring the location & angle). Still, with the cable back there already, it was pretty easy as far as upgrades go.

My understanding is that your method wouldn't be legal as it requires the bracket and access panel. Perhaps I'm misunderstanding your setup or the rules about mounting it.

I did a lot of research and there was a kit that had to be installed to support the weight and aerodynamic "load" of the blade antennas. Again, I could be way off.