Blackhawk Posted May 11, 2017 Share Posted May 11, 2017 For any of you tail-wheel pilots here I welcome some feedback on my Universal Maintenance Free Tail-wheel. Specifications are: CNC machined 6061-T6 billet Torsion block and axle with polyurethane compression bars CNC machined 6061-T6 billet wheel cheek plates 316 stainless steel mounting shaft 2 x sealed 316 stainless steel case bearings with ceramic balls for pivot in torsion block All bolts are 316 stainless steel 6" x 1-1/4" pneumatic wheel with 2 x sealed 316 stainless steel bearings and black alloy rim Total weight as shown in photo is 1.68kg Graeme 5 Link to comment Share on other sites More sharing options...
geoffreywh Posted May 11, 2017 Share Posted May 11, 2017 pretty swish, are those the bell crank holes I see?....does it break free and castor? Link to comment Share on other sites More sharing options...
Blackhawk Posted May 11, 2017 Author Share Posted May 11, 2017 Hi Geoff, It could be used as a castering tailwheel if that is what people want, but there is no breakfree; because of the design, there would be no reason for it. Link to comment Share on other sites More sharing options...
Blackhawk Posted May 11, 2017 Author Share Posted May 11, 2017 There are 4 holes to attach the control arm to. 1 Link to comment Share on other sites More sharing options...
Soleair Posted May 11, 2017 Share Posted May 11, 2017 Looks very well engineered. Dare I ask how much it costs, inc shipping? 2 Link to comment Share on other sites More sharing options...
Kyle Communications Posted May 11, 2017 Share Posted May 11, 2017 Nice machining...is it done locally? Link to comment Share on other sites More sharing options...
aro Posted May 11, 2017 Share Posted May 11, 2017 Why is there no need for the break free? I am having trouble visualizing how it attaches to the aircraft. Is the torsion block an alternative to the tailwheel spring? Link to comment Share on other sites More sharing options...
Yenn Posted May 12, 2017 Share Posted May 12, 2017 In my opinion break free is a requirement if at all possible. There can be very high side loads on the structure if the wheel cannot break free. It was enough on my Corby to break the structure holding the tail wheel spring. Link to comment Share on other sites More sharing options...
cooperplace Posted May 12, 2017 Share Posted May 12, 2017 jabirus come with a universally maintenance-free tailwheel. Link to comment Share on other sites More sharing options...
Downunder Posted May 12, 2017 Share Posted May 12, 2017 Are ceramic balls going to be ok with shock/inpact loading? Are they standard ball races. You can get the ones designed for side/axial loading. Angular contact ball bearing. May be some figures on flex with weight loading. Are the designed for GA or Rec? They look a bit heavy duty for Rec but I'm not a tailwheel pilot.( maybe the pics make it look bigger than it is) C/S bolts into threadded holes would give it a cleaner, smooth look.... Wouldn't have the nylok then, but that's what loctite is for... Link to comment Share on other sites More sharing options...
Blackhawk Posted May 13, 2017 Author Share Posted May 13, 2017 Why is there no need for the break free?I am having trouble visualizing how it attaches to the aircraft. Is the torsion block an alternative to the tailwheel spring? This tailwheel is designed for Recreational aircraft only Mounting plate/block is drilled and bolted to match existing tail spring holes Torsion block replaces the need for a tail spring, chains and tension springs Link to comment Share on other sites More sharing options...
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