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Brian Jackson
Brian Jackson
Platinum Member
Last Activity: Today, 06:13 AM
Joined: 07-17-2004
Location: Hamburg, New Jersey USA
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  • ...and binary :-)...
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  • Thank you Jake. Amazing the interesting things that can be learned from the most benign questions.
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  • Thank you, Mark. I wasn't thinking of them in the context of split rims and tubeless tires. Not having examined the split rims up close and personal yet I wouldn't have thought they would meet with such precision as to hold air in a tubeless configuration.



    Now I have learned...
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  • Brian Jackson
    replied to Crescendo Build
    Good to know, John, and thank you. I ordered the Azusa precision bearings today from Aircraft Spruce. Was surprised they're less than $2 each. Bargains usually makes me skeptical....
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  • Hi Mark. I'm curious about this statement. What makes the split wheels the safer application of these tires?...
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  • Brian Jackson
    started a topic Tires: What types you use and why

    Tires: What types you use and why

    With all of the different tread patterns, profiles and other aspects to choose from, I'm curious what the folks here like and use for various reasons. I just ordered the landing gear components for my build and hadn't really considered this before now. After a phone call with a kind member here I will...
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  • Brian Jackson
    replied to Crescendo Build
    Thanks Jake. I will analyze the photo when time permits this evening.

    Also to add, I believe I may have misspoke about avoiding the Azusa wheel bearings in my earlier post. Searching the forum archives revealed a post I was incorrectly remembering that instructed to "Use the better...
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  • Brian Jackson
    replied to Crescendo Build
    Ordered the wheels, tires, axles and innertubes today from Azusa. 6" and 4" AzusaLite wheels for the mains and nosewheel respectively. Not having ordered these types of parts before exposed my ignorance of many things. For example, tires... many tread types, plys, profiles, etc. But after...
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    Last edited by Brian Jackson; 10-15-2018, 12:16 PM. Reason: typo

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  • Thanks guys. The practical experience here is invaluable. 5/8" axles would be the way to go for this light ship, along with the Azusalite wheels which are being ordered today. I don't have the bearings in the order yet (just the wheel halves and bolts) because I was told not to use the bearings...
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    Last edited by Brian Jackson; Yesterday, 05:54 AM. Reason: I was wrong

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  • You expressed that perfectly, Vance, and I apologize for not prefacing my description with the fact it was modified from plans. I do understand that the radius of a bent axle necessarily means it must extend farther beyond the tube end and strut attachment points. That distance is unknown without knowing...
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  • Hi Vance. Always an honor when you chime in.

    It might be a little nit-picky of me but I share Doug Riley's sentiment about bent tubes under load. In this case it's necessary to have the keel connection portion of the tube aligned with the center of the wheel because of the design of the...
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  • Thank you Doug and Jake. I see that Azusa also makes axles:
    https://azusaeng.com/product/standar...l-stepped-end/
    This seems reasonable to purchase the wheels and axles from the same manufacturer. However it looks like the shortest length they make is 30" which would mean discarding...
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  • Would love to see photos of that. I do have a press brake here at work that is capable of very accurate bends in thick material. I believe 5/8" solid steel rod is what will be used, but I have to coordinate that with the wheels (which I haven't purchased yet). But before I get too far along with...
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  • Brian Jackson
    started a topic Bending the axles allowed?

    Bending the axles allowed?

    Hello All.

    Not sure of the wisdom of this but asking. The GyroBee documentation shows a bent axle strut tube. I am hoping to run this tube straight which would require a bend in the axle itself. Doug Riley has mentioned an insert that allows the axle to be mounted 3 degrees out of alignment...
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  • Brian Jackson
    replied to Crescendo Build
    Thank you Jake. Was going more for a Hookah than a bong :-) Actually the shapes of the fittings (and many other parts) was dictated by load; thickness can diminish at a proportion to length. I just removed material where it wasn't needed and you end up with the shape of pulled taffy....
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  • Brian Jackson
    replied to Crescendo Build
    Tailboom Standoff cones test fit. Their tips will connect to thin jury struts in tension (via turnbuckles) to the midpoint of the bolt at the aft end of the engine mount. They work opposite of a single compression strut (not shown). More to follow. Some things just take more time than one might ant...
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  • Brian Jackson
    replied to Crescendo Build
    Busy building and haven't updated in a while. From the photos it must look like all I do is lathe but other items have been done as well.

    Since Doug Riley's post regarding tailboom reinforcement, I have run a great many design concepts and settled on one that addresses multiple issues....
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    Last edited by Brian Jackson; 10-03-2018, 08:31 AM.

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  • Thank you gentlemen very much for the info. Certainly much more to consider than volume. John and Tom, reading about your hair-razing experiences was unnerving even as a reader. I'm glad the outcomes were fortunate for you both. I will do much more studying before moving forward with any fabrication....
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  • I was imagining something like this, but don't know if the bed allows cutting a tapered section out. In this concept the cut-out is wider at the back to allow clearance for the pod enclosure as it escalates. Envisioning simple hook-over connections where the ramp planks are separate pieces rather than...
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  • This PDF is a goldmine! Thanks for posting. 250 pages of theory and data. So much for that novel I planned to finish reading this year....
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