|
| If this is your first visit, be sure to check out the FAQ by clicking the link above. You may have to register before you can post: click the register link above to proceed. To start viewing messages, select the forum that you want to visit from the selection below. |
|
|||||||
|
|
Thread Tools | Display Modes |
|
|
|
#2
November 19th 08, 05:47 AM
posted to rec.aviation.homebuilt
|
|||
|
|||
effect of changed thrust line.
On Tue, 18 Nov 2008 21:20:43 -0800, John Kimmel
wrote: wrote: Only problem I see is you still have it set up with the thrust above the CG. The center line of the prop is significantly lower than the CG. Do I just use negative numbers? Or should the spreadsheet still be corrected? If you downloaded the corrected version, the numbers you see when you open the spreadsheet a 60 -13 -1.5 -14 -2.408899631 CG is 60" aft of propeller center. Propeller center is 13" below CG. Thrust angle is 1.5 degrees down. If you move propeller center down 1" to 14" below CG, the new thrust angle will be 2.4 down. That's what I suspected - and it seams to work. The resulting reduction in the angle is counterintuitive however. 
|
| Thread Tools | |
| Display Modes | |
|
|
Similar Threads
|
||||
| Thread | Thread Starter | Forum | Replies | Last Post |
| thrust line for engine and not mounting engine on this thrust line | tommyann | Home Built | 8 | December 15th 06 03:31 PM |
| Has something changed | [email protected] | Soaring | 10 | May 3rd 05 08:34 PM |
| High thrust line on canard design? | Shin Gou | Home Built | 4 | March 5th 05 03:06 AM |
| Getting students to line up with the center line | BoDEAN | Piloting | 27 | April 21st 04 11:23 AM |
| I want to tell you something that has changed my life! | C J Campbell | Owning | 11 | January 29th 04 11:34 PM |
Hybrid Mode
