Allegro−Lite - charlesriverrc.org

1 01020Re sqrt(CL) =deflected wingat 150 lb loadtail 0 " " "10 32 Nylon bolts2 meter RESK evlar fuselage 4 layers,CF reinforcements32 sq in = +/ 20 degstrong expoCF V strutCF platform/horn4 40 Nylon "Allegro " "15" " "16" " CF pushrodsTeflon housingson top of "23 " "EDA = degJR 241AG38 " " " " "HT08 bottomparallel to boombasswoodWing spar weights caps 38 g (prepreg uni CF)core 36 g (10,8,6 lb endgrain balsa)wrap 4 g (3k Kevlar tow/epoxy)join 20 g (11/32" CF rod)tubes 12 g (3/8" OD brass)boxes 12 g (ply, glass cloth)glue 8 gmaple/carbontowhook beam4 lb C grain balsa16 lb balsa " carbon spineUltracote LiteWing panel weights center 156 gmids 101 gtips 24 gNeutral Point from LEtowhook ahead of weights shell 45 gfittings 18 gbulkheads 4 gtowhook 3 gpushrods 7 gDesign Loads wing lift 150 lb @ 57 m/sroot 1400 lb inroot cap load 2400 lbroot cap area in^2 top in^2 bot cap stress 100 ksi top 150 ksi bot 390 ksi maxrod stress 120 ksiweb stress 270 psi (shear)rib stress 750 psi (axial)root torsion 33 lb inroot skin th.

2 Inwing skin shear 100 psi Mark Drela 25 Aug 00CL = max = min sink = max L/D = minmin sink = ft/s @ 18 oz ft/s @ 36 ozmax L/D = @ 18 oz @ 36 oz Item weights 350mAh 57 g3 JR241 27 gHitec 555 23 g fuse 70 g boom 15 g stab 12 g rudd 10 g wing 281 g ball 18 gTOTAL 515 gmass = 18 oz = 36 oz ballastedm/A = oz/ft^2 @ 18 oz = oz/ft^2 @ 36 ozarea = 525 sq inspan = = All moving tail45 sq in = 17 .. +10 degstrong expo 8 deg mix inwith full "HT12 of boom " > " ID3 plies uni CF, light " wall thicknessACP TU 10 70K(100K) 65K(95K) 50K(75K) 35K(50K)4 lb balsa front6 lb C grain oz Kevlar hingeUltracote Lit