Alltrikes

I went with my friend for a flight today, I fly a Northwing Navajo with HKS 700e. We did a few touch and gos, on two of the landings we felt a significant shimmy.

Now on my trike, I already have a dampner, I am tyring to figure out what could have caused the shimming, the only thing I can think is that my tundra tires were a bit low on air and also the second landing was done probably a bit faster, with about 6 mile cross wind.

Has anyone who owns a Navajo trike exprienced this? sometimes I think due to a four stroke engine, maybe the rear part of the trike already is heavy to begin with, add a 215 pound passenger and slightly deflated tire, coupled with a cross wind landing and all of the above could have contributed to the shimmy.

The first time my speed during the shimmying was around 20s or so, so I punched the throttle and took off again, the second time I applied the brake and that kind of stopped the shimmying.

None the less, I would like your input. For those of you who have tundra tires, what is the pressure you keep in those tires?

Regards,

Rizzy