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Motor Retainers

Last updated 02/08/2003

Motor Retention
Sample Type Peak Load (lbs) Glue Wood Screw Size Notes
1 Press Fit 168.232 15 min Bob Smith Epoxy 3/16 Bud Nosen Aircraft Ply 8-32 Pic
2 Press Fit 196.155 15 min Bob Smith Epoxy 3/16 Bud Nosen Aircraft Ply 8-32 x
3 Press Fit 178.229 15 min Bob Smith Epoxy 3/16 Bud Nosen Aircraft Ply 8-32 x
4 Press Fit 276.133 15 min Bob Smith Epoxy 3/16 Bud Nosen Aircraft Ply 8-32 x
Mean 0 204.697 0 0 0 0
Std Dev 0 49.011 0 0 0 0
 
1 Screw In 458.237 15 min Bob Smith Epoxy 3/16 Bud Nosen Aircraft Ply 8-32 Pic
2 Screw In 447.464 15 min Bob Smith Epoxy 3/16 Bud Nosen Aircraft Ply 8-32  
3 Screw In 440.311 15 min Bob Smith Epoxy 3/16 Bud Nosen Aircraft Ply 8-32  
Mean 0 448.671 0 0 0 0
Std Dev 0 9.0237 0 0 0 0
 
1 Flange 176.850 15 min Bob Smith Epoxy 3/16 Bud Nosen Aircraft Ply 10-24 Flange Out
2 Flange 450.222 15 min Bob Smith Epoxy 3/16 Bud Nosen Aircraft Ply 10-24 Flange In
Mean 0 313.536 0 0 0 0
Std Dev 0 193.303 0 0 0 0


Joel Corwith Retainers*
Sample # Type Peak Load (lbs) Glue Wood Screw Size Notes
001-8C 92.047 None 1/4 ply #8  
001-8A 84.117 None 1/4 ply #8  
001-8B 140.308 None 1/4 ply #8 Bad data, must re-plot graph
005-8A 256.138 Superglue 1/4 ply #8  
005-8B 260.275 Superglue 1/4 ply #8  
005-8C 266.825 Superglue 1/4 ply #8  
003-6A 122.382 None 1/4 ply #6  
003-6B 168.576 None 1/4 ply #6  
003-6C 125.126 None 1/4 ply #6  
007-6A 283.027 Superglue 1/4 ply #6  
007-6B 274.409 Superglue 1/4 ply #6  
007-6C 288.198 Superglue 1/4 ply #6  
002-8C 54.470 None 1/8 ply #8  
002-8B 54.471 None 1/8 ply #8  
002-8A 51.368 None 1/8 ply #8  
006-8A 95.838 Superglue 1/8 ply #8  
006-8B 57.918 Superglue 1/8 ply #8  
006-8C 75.154 Superglue 1/8 ply #8  
004-6A 80.325 None 1/8 ply #6  
004-6B 66.191 None 1/8 ply #6  
004-6C 61.365 None 1/8 ply #6  
008-6A 76.878 Superglue 1/8 ply #6  
008-6B 127.209 Superglue 1/8 ply #6  
008-6C 135.482 Superglue 1/8 ply #6  
* Machine screws threaded into centering ring material


Hardware store type wall anchors used for retrofitting
Sample # Type Peak Load (lbs) Glue Wood Screw Size Notes
023-6A Hollow 158.234 None 1/8 ply #6 Removed 2 prongs before use
021-6A Hollow 246.141 None 1/8 ply #6 4 prong
022-6A Hollow 240.625 None 1/4 ply #6 Removed 2 prongs before use
020-6A Hollow 126.174 None 1/4 ply #6 4 prong

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