Piodiriont Aviation No\ts - Page 5
Friday, Octobor 12^ 1945a
thoreforo, that in order to load tho piano PROBLEM;
vfith a porson on tho front scat, tho roar Find Forv/ard CG Extreme of a Pipor
scat will also havo to bo occupiod. Tho J3 L-65 which has an empty woight of
second and third lino of your calculation 667 lbs* and an orapty CG 16«58,
vrill be as follows; Portinont aircraft spocifications are:
Pilot 170 lbs. 36 6120»00 CG Rango 10.6 to 22.7
Passenger 170 " 9 1530,00 Standard -weight 1100 lbs,
Tho fuel tank is located on on arm of -18, Noo of seats 2 (one / 9, one / 56)
Tikhon tho naximun amount of fuel is carriod Fuel capacity 12 gals, (-18)
(12 gals), tho moiTijont moving tho CG for- Oil 5 Qts, (-39)
vrard T/ill bo tho greatest, Tho fourth line Ans, 15»66
of your calculation will be;
Fuel (max) 12 gals. 72 -18 -1296.00
Oil must bo included, because regardless
v/hothor the moment of tho oil moves tho
CG forward or aft, the engino must have oil.
The fifth and last lino of your calcula
tion will bo:
Oil (1 gal.) 7,5 -29 -217.5
Grouping tho lines together and adding
tho column of v/oights and tho column of
moments wo have the following:
Wt, ilrm Moment
(lbs.) (in,) (in,lbs.)
AEvY 650.0 16 10400,0
Pilot 170,0 36 6120.0
Passenger 170o0 9 1530,0
Fuel (max) 12 gals 72aO -18 - 1296,0
Oil 1 gal, 7,5 -29 - 217,5
1069o5 16556’,5
To find tho CG Forward Extromo wo
divide the moment by the woight:
16536,5 - 1069.5 - 15,46
Tho CG For^vard Extromo is 15,46, which
is v/ithin tho limits a c cor ding to tho
spocifications.