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| John M Oshust, Comment for image # 33771 | 05 Apr 15 07:36 |
| Brian, It was big but is currently on dimensional reduction program. When shaping a prop a larger one can be made small but if you start too small, you cannot make it bigger:-) |
| BriandKilby, Comment for image # 33771 | 05 Apr 15 07:11 |
| that's a big prop! |
| meku, Comment for image # 33771 | 05 Apr 15 04:18 |
| Dziêkujê, z wzajemno¶ci±, Zdrowych Weso³ych ¦wi±t! |
| John M Oshust, Image # 33788 | 04 Apr 15 13:43 |
Stages in airscrew shaping. |
| John M Oshust, Image # 33787 | 04 Apr 15 13:42 |
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| John M Oshust, Image # 33786 | 04 Apr 15 13:42 |
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| John M Oshust, Image # 33785 | 04 Apr 15 13:41 |
Tomorrow hand sanding and width reduction. |
| John M Oshust, Comment for image # 33771 | 04 Apr 15 13:32 |
| Meku, The initial shape is good but it will be the final shape that will matter. Chrystus zmartwychwstał! zdrowe i radosne święto dla Ciebie i Twojej rodziny! |
| meku, Comment for image # 33771 | 04 Apr 15 02:29 |
| This initial shape is very good. |
| meku, Comment for image # 33771 | 04 Apr 15 02:12 |
| I am full of admiration, because it's fairly difficult task requiring time. |
| John M Oshust, Comment for image # 33771 | 03 Apr 15 18:44 |
| Thanks we start cutting, again, tomorrow. Blood is not an option. The diameter to keep scale is 12 inches. Now it is 12.5 to allow for shrinkage in shaping. |
| John M Oshust, Image # 33775 | 03 Apr 15 18:41 |
Something between this... |
| John M Oshust, Image # 33774 | 03 Apr 15 18:40 |
And this |
| Creosotewind, Comment for image # 33771 | 03 Apr 15 18:08 |
| Looking pretty good so far. |
| JohnG., Comment for image # 33771 | 03 Apr 15 17:29 |
| Slow but sure keeps the brain ad mind clear. (Uncle Carlo could also be of help.) |
| John M Oshust, Image # 33771 | 03 Apr 15 17:25 |
Ogre airscrew take two. The blanks that I first cut were not wide enough to shape the airscrew properly. I had hoped to make two, almost identical, two bladed airscrews, and them joint them into a four bladed unit. Shaping the complex curves on two individual propellers greatly “confuzeled “ my brain. The neurons fired but the synaptic connections repeatedly reversed the thought pattern. Right becoming left, top becoming bottom. This short circuit was magnified by the clockwise airscrew rotation. Up until Ogre all of my Props have been anticlockwise in rotation. I wonder what would happen if I drove my lorry in England? Disaster, I am sure! |
| John M Oshust, Image # 33769 | 03 Apr 15 17:23 |
The glued and assembled four bladed airscrew awaits tomorrow’s shaping. In this form my thought process should be a bit more direct and clear. What is done to one blade is repeated on the others. Coloring the upper surface with a marker, prior to shaping, should produce a sanding pattern pointing to symmetry. Repeated coloring and shaping hopefully yield the desired result. “Lettuce” see if this works. To be near scale, the airscrew blades need to be 12 inches in length. |
| John M Oshust, Comment for image # 33737 | 02 Apr 15 17:38 |
| Wow then it turns to starboard easily! Sometimes was the operative term. |
| David Duckett, Comment for image # 33737 | 02 Apr 15 17:28 |
| http://www.bing.com/videos/search?q=b17+engine+start+up&FORM=VIRE1#view=detail&mid=BDAD32EAF8C22DC3F4EFBDAD32EAF8C22DC3F4EF |
| John M Oshust, Comment for image # 33737 | 02 Apr 15 17:14 |
| Yes sir planes like the B 17 the props rotated opposite to cancel the twist. The Camel could turn on a dime in the direction of the engine torque but I have read this force also killed inexperienced pilots on take offs. |
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