Safety cables on FX-3?

[hawgdrvr]

Opinions on whether or not to get safety cables on a FX-3? I'll have Acme Aero's but wonder if it's still a good idea to get safety cables?

[Dan L]

D5708B32-A6F0-45F1-903D-7C9EB4A9BF11.jpg

I do with Acmes. Anything can fail and is more likely to the rougher the landing area is.

[turbopilot]

Or you can go wireless with a stronger gear.

[Dan L]

Or you can go wireless with a stronger gear.

I like that line. The Beringer gear looks impressive. We assume you’re still pleased with yours?

[turbopilot]

I like that line. The Beringer gear looks impressive. We assume you’re still pleased with yours?

Very happy. The gear is great and the full braking system including the ALIR ant-skid regulator is so much better than standard braking. Ground handling much, much improved. In my opinion this is a safety device. When you look at the NTSB database almost all Carbon Cub accidents are landing mishaps. I firmly believe the old fashion cub gear design is a good part of the problem.

Just received a new gear kit from Beringer for my new SS. Full system (including braking) weighs about 5 lbs less than standard gear with AOSS.

[Andy]

"The difference is that the standard cub gear (bungee, AOSS or Acme) has one or both wheels (depending if you are landing straight ahead or one wheel down in a cross wind) at a severe negative camber at the worst possible point of the landing. "

Please show me one picture, any picture, of a Super Cub or FX-3 with standard bungee suspension with a "severe negative camber" with the gear unloaded.

[turbopilot]

"The difference is that the standard cub gear (bungee, AOSS or Acme) has one or both wheels (depending if you are landing straight ahead or one wheel down in a cross wind) at a severe negative camber at the worst possible point of the landing. "

Please show me one picture, any picture, of a Super Cub or FX-3 with standard bungee suspension with a "severe negative camber" with the gear unloaded.

You misinterpreted my statement. I was referring to the camber of the wheel at the point of maximum load on the wheel just after a hard touch down. That was clearly demonstrated in the drop test video and the screen shots taken at maximum load on the gear. That 1360 lb drop test was only from 12". So not much of a drop.

If you want a picture of your FX-3 wheel unloaded then go flying at take a picture out your window of your wheel. I doubt you will see much camber.

[Andy]

"I wonder if there is a CG issue with E/FX-3's where there is more need for tail weight than what people are flying? Is the nose over situation too great due to insufficient aft CG?"

My FX-3 with 80 inch prop and 8.50 tires is at the forward CG limit with full fuel and me in the front seat. I carry weight (tool bag and oil) at the back of the aft cargo area.


Andy

[Andy]

"I'll have Acme Aero's but wonder if it's still a good idea to get safety cables?:

Safety cables offer no protection from the gear folding under the airplane. Whether safety cables will help depends on how you intend/expect to break the airplane.

Some of the photos of broken FX-3 in the NTSB database are interesting and disturbing. What puzzles me is why so many FX-3 (CCX-2000) accidents are listed but there are no EX-3 (CCK-2000) accidents listed. Maybe there is a lag because of the build time.

Andy

[turbopilot]

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Some of the photos of broken FX-3 in the NTSB database are interesting and disturbing. What puzzles me is why so many FX-3 (CCX-2000) accidents are listed but there are no EX-3 (CCK-2000) accidents listed. Maybe there is a lag because of the build time.

By my count only 23 EX-3's in the FAA database. No way to know how many are flying. There are 92 FX-3's in the database.