name: inverse layout: true class: center, middle, inverse --- #BOS Launch Scenarios --- layout:false .left-column[ ##Lander Design ] .right-column[ LANDER PIC <Lander description.> ] --- template: inverse # Platform Constraints --- layout:false .left-column[ ## Platform Constraints ### R/V John Martin ] .right-column[ ## R/V John Martin * A-Frame: H: 116" W: 102" * Winch: 1,500m 1/4"SC * Max Load: 1,000 lbs * Deck Space: > 10'x10' * Capstain: Yes ] --- layout:false .left-column[ ## Platform Constraints ### R/V John Martin ### R/V Shearwater ] .right-column[ ## R/V John Martin * A-Frame: H: 116" W: 102" * Winch: 1,500m 1/4"SC * Max Load: 1,000 lbs * Deck Space: > 10'x10' * Capstan: Yes ## R/V Shearwater * A-Frame: H: ~14' W: 10' * Winch: 1,800 0.322"MC * Max Load: 800 lbs * Deck Space: F/A: 7' P/S: 10' * Capstan: ?? ] --- .left-column[ ## R/V Shearwater ] .right-column[ .fullw[  ] ] --- layout: false .left-column[ ## R/V John Martin ### Winch ] .right-column[ .fullh[  ] ] --- layout: false .left-column[ ## R/V John Martin ### Winch ### A-frame ] .right-column[ .fullh[  ] ] --- .left-column[ ## Equipment ### Depressor Weight ] .right-column[ The depressor weight serves to: + ] --- .left-column[ ## Equipment ### Depressor Weight ### Cable Float ] .right-column[ The float serves to: + ] --- .left-column[ ## Deck Safety Concerns ] .right-column[ .pull-right[  ] __Mechanical:__ + A breakaway component will be added at the top and base of the Lander, so that a line break can be avoided. .pull-right[  ] __Electrical:__ + Since we are sending 480VAC, it is prudent to recommend anyone handling the coaxial tether during any handling operation be equipped with properly rated safety gloves. ] --- template:inverse #Launch Scenarios <br /> <br /> Four scenarios were postulated, and the following two <br/>represent efforts we'd like to attempt and evaluate <br />aboard the R/V John Martin. --- layout: false .left-column[ ## Launch Scenarios ### A: Direct Winch Wire ] .right-column[ Using the winch wire, directly shackle it to the BOS and secure it to the coax using cable straps until the clump and then the line hooks to marry the two after that. Football Float in the middle of section b/t clump and BOS. .pull-right[  ] **Pros:** + Least amount of hardware stowed on the winch. + Familiar operation for equipment handlers. **Cons:** + Requires over the side marrying operations. + Some entanglement hazard. ] --- layout: false .left-column[ ## Launch Scenarios ### A: Direct Winch Wire ### C: Synthetic Only ] .right-column[ Deploy using only a synthetic strength member such as Spectra, using a hydraulic capstan to lift and drop the lander. The clump is attached using a shackle, and the coax is married over the side. It's possible to premarry the cable to the spectra, but the capstans can be too small for this in some uses. .pull-right[  ] **Pros:** + Float may be unnecessary, but is still reccommended. + No yale grip for clump attachment. **Cons:** + Slightly more dangerous operation, since the line must be handled by hand. + Requires over the side marrying. + Manual payout counting. ] --- # Extra Slides --- layout: false .left-column[ ## Launch Scenarios ### A: Direct Winch Wire ### B: Synthetic Flying Lead ] .right-column[ Spool a length of synthetic strength member, such as Spectra, onto the winch and shackle it to the bitter end of the CTD wire. Provides a shackling point for the clump, and may reduce the need for a float in the section between the clump and BOS. .pull-right[  ] **Pros:** + Float may be unnecessary, but is still recommended. + Doesn't require yale grip for clump attachment. **Cons:** + More equipment. + Requires over the side marrying operations. **Notes:** .red[ + RV John Martin cannot overload its CTD winch, and the dedicated blocks cannot pass the CTD Wire termination ] ] --- layout: false .left-column[ ## Launch Scenarios ### A: Direct Winch Wire ### B: Synthetic Flying Lead ### C: Synthetic Only ### D: Coax Only ] .right-column[ Launch and recover with aid of the winch or deck line, then use a powered capstan and deploy using the coax alone. Clump would have to be attached and launched in the same way. Still requires the float. .pull-right[  ] **Pros:** + No need for line marrying. **Cons:** + Complicated launch and recovery. + Best way to recover would be hooking in recovery lines at the surface, and slipping those lines for launch. + Manual payout counting. + Puts strain on the coax, not sure of the rating. ]