Structures
April 22:
Bulkhead Locations
# | Dist (in) | Description | Reference Location |
---|---|---|---|
1 | 18.625 | Nose Gear Mounting (Vertical Mount) | Leading |
2 | 21.000 | Nose & Fuselage molds interface | Mid-Plane |
3 | 40.965 | Main Wing Spar | Trailing |
4 | 51.346 | TE Wing Spar | Leading |
5 | 62.500 | Forward Engine Mount | Trailing |
6 | 66.750 | Aft Engine Mount | Leading |
(With 0.25" Brackets) | |||
7 | 76.75 | Forward Tail Mount | Trailing |
8 | 80.75 | Aft Tail Mount | Leading |
Wing Dimensions
LE Location | 37.4559 in | $36+4*tan(20)$ |
Root Chord | 17.5441 in | $19-4*tan(20)$ |
Tail LE | 74.89293871476 in |
Spar Locations:
Wing LE | $36+4*tan(20*pi/180)+(19-4*tan(20*pi/180))*.20$ | 40.9647 |
---|---|---|
Wing TE | $36+4*tan(20*pi/180)+(19-4*tan(20*pi/180))*.75$ | 50.6140 |
Tail |
Weights:
Part | Weight (lbs) |
---|---|
Tail Structure (L and R) | 1.363 |
LE Spar | 0.466 |
TE Spar | 0.292 |
Motor | 0.080 |
Speed Controller | 0.322 |
2-Cell Battery | 0.552 |
3-Cell Battery | 0.814 |
Shroud/Fan Mount | 0.060 |
Propeller | 0.044 |
Motor Cover/ Shroud | 0.008 |
March 13:
Eli's Structural Analysis Notes:
UPDATES: SPAR TESTING WEDNESDAY at 130
Callie, Jim, James and Joe are working on internal wing structure designs and the goal is to have the structure determined by this Friday. Scott, Shannon, Dinh, Vince, and Grant are working on the fuselage internal structure designs and the goal is to have this determined in as much detail as allowable at that point next Friday (3/7).
The following are the five spar designs we are carrying through to the construction stage followed by testing
- balsa core with kevlar sleeve
- balsa core with kevlar carbon bonded to the top and bottom of the core reinforced with kevlar sleeve
- balsa core with carbon fiber sleeve
- balsa core with kevlar carbon bonded to the top and bottom of the core reinforced with carbon fiber sleeve
- carbon fiber rectangular rod
Coupon Testing Results
Test results are available in this Excel file Coupon Testing Results.xls
Hand or send Shannon your weekly hours by 1:30 every Monday
Current Schedule for the rest of the quarter:
February 15:
Vince, Shannon and Dinh complete scaled drawing of Canard Configuration
Grant, James, Jim and Joe complete scaled drawing of Traditional Configuration with engines mounted on 45 degree pylons.
February 19:
Structures meeting to discuss each members spar designs and decide on three or four designs to bring into the construction and testing phases.
Testing various coupons for skin.
February 29:
Complete testing on coupons
Complete testing on spars
March 7
Complete configuration of the internal structure of the wing