Some carbon fiber strips and rods were added to the website today (LINK HERE). We have limited sizes, however we plan to expand as we find out what is most widely used. We can offer a bulk discount on orders over 100. Please contact us if you need more carbon fiber or sizes that we don’t have listed on the website. I have access to quite a few different sizes, but with limited funds from starting up my own business, I can not carry everything in stock. I can beat most retail prices. Currently the best way to contact us is through our Facebook page. We hope to add a form to the website eventually. You can find our Facebook page HERE.
We are still working with UPS about our rates. We resolved one issue today which helped reduce the shipping charges our customers see. An issue still exists between what our customers are being charged and what we actually pay when we ship directly from the UPS page. Our UPS representative is currently working on this. We hope to have this resolved soon. We will refund any difference between what our customers pay and what we pay to UPS.
The Spec Wing kits are getting closer to completion. Bob and Donny over at Thrust FPV did some crash testing and found the wing held up very well. We are still working out the details for the motor mount and winglets. Once this part of our R&D is finished, we’ll have the kit up for sale. I know this is taking longer than expected, however we want to sell the best product we can possibly make. We are almost there!
The Citabria Prototype is now completely cut out with the CNC. I have a few minor adjustments to do before I cut out the next few planes. I will be giving some to friends for beta testing. I am also documenting the process with both video and pictures. This picture are all the foam parts ready to be assembled. The total weight of the foam is 10.3 ounces. The wingspan is over 52″. I can’t wait to fly this later this week!!!
I’m still planning to use a 480 plus electric motor on a 3s-2200mah battery.
I finally finished the design on the Citabria wing.
Wing is hotwire cut on my CNC from #1.3 White EPP Foam.
This was challenging due to the wing tips having a compound taper. My CNC was at it’s limitations for the majority of the hotwire cut. It took a lot of CAD work and tinkering to finally get the wing tip to fit in the machine and properly cut out. I think I cut over 10 different wing tips before I finally got it. I also had other challenges like buggy software, loss of files on my computer, and in general several (I’ll spare you the long story!) unexpected external events that pulled me away from the project.
I’m really excited about the Citabria. It is finally coming together and I can’t wait to fly it. I’m still shooting for a target of about a 480 size motor, 3s-2200mah battery, and the wing span will be 54″ with a removable wing. If you want a clipped wing version, then don’t add the wing tips to have a 48″ wingspan. Or just cut off the ends of the main wing to make it shorter. I think this will have some silly STOL capabilities with a 54″ wingspan and flaps. I can’t wait to play with it.
I am now getting over a cold, so the fuselage may take a few extra days to complete. I’m trying to decide exactly how I will make it. One thought is to do a clam shell style design with a left and right shell that is hollowed out with my mill. The downside of this is that the entire fuselage will need to be cut out with the mill which means rougher cuts and longer CNC time. The other option, which I might actually go for, will be to have the fuselage made in three different sections. We’ll have the main center section sandwiched between a thinner left and right sheet. This will allow me to use the mill to hollow out the center section, but the outside pieces from the sheet will leave the outside of the fuselage smoother. Do you have another idea? Let me know.