Chris Hoskins invented this power steering device for Canard nose
gear here in NZ.  It will work on any nose gear airplane including
you Tango guys.  It does an excellent job of damping in the bargain.
In fact a tail dragger would benefit as well. I am thinking about
building one for my RV4.  The tail wheel would be locked straight
ahead for landing and then could be steered back to the hanger. IMHO
this is a major development.

Good work Chris. I love it.

Chris is also building his own Ford C6 based six pinion planetary
gear box for his p-ported RX8 engine.

He is using the Ellison copy Rotec carb from OZ.

Paul Lamar  In NZ


Paul, if you want hydraulic steering there are several manufacturers
making a sweep cylinder like that. Parker and SMC come to mind.

Bill Jepson

Here are some more pictures. It uses a Mercury Marine hydraulic power
pack. I'll work with Chris to get a schematic.

--------------------------------------------------------- More info.
This will work with a simple oil pump made from extruded pinion wire
and a 12 V DC gear motor. A DPDT steering switch will reverse the
direction on the oil pump to steer left or right.

Klaus told me this is very desirable feature for canard's as one can
 exit the runway on the high speed turn offs at high speed :) No need
to steer with the brakes.

Jim Miller designed Pushy Galore piloted by Bruce Bohannan. The nose
gear was both mechanical steer-able and retractable.

http://www.airventuremuseum.org/collection/aircraft/4Miller-Bohannon%20JM-2%20Pushy%20Galore.asp

 BTW Allan Tolle beat Pushy Galore in the dead stop time to climb to
3000 feet with a 350 HP p-port 13B in an RV3 at Sun & Fun. 59
seconds.

Paul Lamar



looks like it weighs a ton
couldn't do any better than that?

Tony Long EZ


The DC motor and pump shown are a bit overkill at 6 pounds
and I suspect they could be made smaller.
So too the sweep cylinder.

Paul Lamar

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