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73 BREAKEVEN SCHEDULE Winter Capital Setup Operational Total Lifetime Breakeven Season Costs Costs Savings Savings Savings Year 1 $700,000 $17,000 $568,000 -$149,000 -$149,000 no 2 n/a n/a $568,000 $568,000 $419,000 yes 3 n/a n/a $568,000 $568,000 $987,000 reached prior 4 n/a n/a $568,000 $568,000 $1,555,000 reached prior 5 n/a n/a $568,000 $568,000 $2,123,000 reached prior 6 n/a n/a $568,000 $568,000 $2,691,000 reached prior 7 n/a n/a $568,000 $568,000 $3,259,000 reached prior 8 n/a n/a $568,000 $568,000 $3,827,000 reached prior 9 n/a n/a $568,000 $568,000 $4,395,000 reached prior 10 n/a n/a $568,000 $568,000 $4,963,000 reached prior 11 n/a n/a $568,000 $568,000 $5,531,000 reached prior 12 n/a n/a $568,000 $568,000 $6,099,000 reached prior 13 n/a n/a $568,000 $568,000 $6,667,000 reached prior 14 n/a n/a $568,000 $568,000 $7,235,000 reached prior 15 n/a n/a $568,000 $568,000 $7,803,000 reached prior 16 n/a n/a $568,000 $568,000 $8,371,000 reached prior 17 n/a n/a $568,000 $568,000 $8,939,000 reached prior 18 n/a n/a $568,000 $568,000 $9,507,000 reached prior Figure 29. Sample breakeven schedule page. TC) incorporate appropriate spot deicing for frost removal lines and deicing service providers to better understand clarification/guidance information in the annual FAA- the benefits of employing spot deicing for frost in their Approved Deicing Program Updates (Notice 8900.xx) and operations. The cost-benefit model will also assist users by the Transport Canada Guidelines for Aircraft Ground Icing forecasting the financial benefits of employing spot deic- Operations (TP 14052). ing and a promotional campaign be implemented to mar- It is also recommended that the AEA harmonize language ket these tools. contained in paragraph of the AEA De/Anti-icing Recommendations Document to agree with the new word- Suggested Research ing of paragraph 6.5 of ARP 4737. (These changes are deemed to be minor editorial changes.) The application of current Type I fluid HOT guidelines to It is recommended that spot deicing be applied only to non- de/anti-icing frost from surfaces subjected to cold soaking active frost resulting from natural frost generation. should be examined to ensure suitability as the large cold-sink As part of this project, a cost-benefit model and presenta- presented by the mass of cold wing structure and cold fuel may tion aids were developed (see Appendix G) to assist air- decrease the fluid endurance time.