For the BD$-5$J$,$ plot the maximum rate of climb versus altitude. From this graph,

estimate the service ceiling.

V oo $($ft$/$s$)$ TR $($lb$)$ PR $($ft$$lb$/$s$)$ PR $($hp$)$

$30011,7680\mathrm{.}3530$ X $1076,419$

$4007,3130\mathrm{.}2925$ X $1075,319$

$5005,6170\mathrm{.}2809$ X $1075,107$

$6005,0840\mathrm{.}3050$ X $1075,546$

$7005,1660\mathrm{.}3616$ X $1076,575$

$8005,6360\mathrm{.}4509$ X $1078,198$

$9006,3840\mathrm{.}5746$ X $10710,447$

$1,0007,3540\mathrm{.}7354$ X $10713,371$

$1,1008,5120\mathrm{.}9363$ X J$0717,023$

$1,2009,8380\mathrm{.}1181$ X $10821,465$

$1,30011,3210\mathrm{.}1472$ X $10826,759.$ data is that