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| pfinn | Scratch Built Holiday | Build | 07-Nov-19 05:21 |  | | Views : 1267 | | All up weight is now at 5 oz. including receiver and battery. Yay. Now the fuselage. |
| pfinn | Scratch Built Holiday | Build | 07-Nov-19 05:18 |  | | Views : 309 | | The large Carbon tube is left long for now. This unit will be something like a cartridge that will be removable from the fuselage...well...because the servos are mounted inverted. A hatch on the bottom for access isn't really a good idea with no landing gear!! |
| pfinn | Scratch Built Holiday | Build | 07-Nov-19 05:09 |  | | Views : 260 | | The larger tube I made from "Carbon Sleeve" fabric molded around a 5mm rod. The little spring just pushes the Bellcranks out into position. Titanium spring (I just happened to have some, so what the heck ;o ). |
| pfinn | Scratch Built Holiday | Build | 07-Nov-19 05:03 |  | | Views : 272 | | Parts. The side plates will be profiled after everything is test assembled. I wish to be able to disassemble the whole thing later to help facilitate repairs. In the past I've built all the radio gear and "Monkey Motion" into the model permanently and regretted it later. |
| pfinn | Scratch Built Holiday | Build | 07-Nov-19 04:55 |  | | Views : 290 | | Rough Bellcranks. I will reinforce the disc mount with wrapped carbon tow to create fillets. |
| pfinn | Scratch Built Holiday | Build | 07-Nov-19 04:53 |  | | Views : 297 | | Since all my machines are still in the US I have to roll with what I have. Cordless drill and a Dremel. This is my substitute Lathe. HaHa |
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| Hangar |
Aircraft |
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Date |
Preview |
| pfinn | Scratch Built Holiday | Build | 07-Nov-19 04:50 |  | | Views : 315 | | "Monkey Motion". Although I have computer design software, figuring out geometries is pretty darn fun this way too. The green pins are stationary hinge points and the yellow are move. #1 is the push-rod from the servo. #2 is the Bellcrank and #3 in the connecting rod to the wing pin, The crosshatch area is the movement I am after. |
| pfinn | Scratch Built Holiday | Build | 02-Nov-19 00:22 |  | | Views : 368 | | Stabilizer. |
| pfinn | Scratch Built Holiday | Build | 31-Oct-19 15:28 |  | | Views : 354 | | Denmark still. Was able to fly the "Thermite" at the beach today. Built this years ago. It's somewhere here on VA squeezed into another build. |
| pfinn | Scratch Built Holiday | Build | 30-Oct-19 11:50 |  | | Views : 365 | | Horizontal Stabilizer. Laminate, Notch, Fit rib blanks.... This wil be a "Full Flying" Stabilizer. The Sub-ribs will be trimmed to length after the ribs are notched for the 1/6" square spruce spars. I wil be curved to match the wing spar. The airfoil will be shaped free-hand after everything is bonded. |
| pfinn | Scratch Built Holiday | Build | 28-Oct-19 17:27 |  | | Views : 494 | | Since this is still on the "Holiday" build thread... I was able to fly the actual "Holiday" from the original build hereon VA in Denmark. So this model was framed up in Maui 10 years ago, finished in California, and now has flown "Internationally"! It must have about 600+ flights on it. I just gave it a rebuild so it should go another few hundred. If the Wind and Radio gods allow it!! haha |
| pfinn | Scratch Built Holiday | Build | 27-Oct-19 11:54 |  | | Views : 398 | | Brought some stuff to Denmark to build the tail feathers. I used a computer for the wing design predominantly to ensure the correct critical airfoil profile sizes so I could print them out accurately. But for the tail feathers I just draw them out freehand, cut paper outlines, set them on the floor and trim them until they "Look about right". |
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