2022/10/23 Frame Architecture Work Session

Frame shape

Rectangular carbon fibre frame is popular (twin boom model). provides stability to quad frame

Single fuselage easier to handle centre of gravity calculations

twin boom

• with rectangular CF frame to mount quad motors, stable

Cabin layout: barbies + batteries

6 barbies. Pick dimensions, figure out loading mechanism and way to secure them in seats

batteries are not in cabin. just barbies.

cabin that has a door on one side that opens to 3 rows of 2 barbies each

1kg of barbies plan for

flat top of cabin. rounded sides. flatness of bottom depends on landing gear attachment

door that swings down and becomes steps. 3 barbie seats wide

Batteries

possibly custom lithium ions. Whether or not they need to get replaced.

on top of fuselage/somewhere else

This means they can

• up to 50% more energy dense

need some power in the plane while the batteries are getting swapped. for ZP3, the passover is where 1 battery is swapped at a time.

Want to be able to quickly change batteries in Task 2

Airfoil shape

Will require some research. Actually do some of the research here (just pick one from a website probably)

Looking at model RC airfoils not passenger planes

Naca airfoil NACA airfoil

airfoil/exact wing shape can be changed, make the joint universal

• Will be using foam not CF

Materials/mass for each part of plane

Carbon fibre. what portion of the plane will be carbon fibre? And how feasible is it to manufacture this in 6 weeks? (or should we go for entirely foam wings etc)

carbon fiber - find sponsor for chemicals

will not be done for 6 weeks. use prototype materials:

• foam

3.3 kg of electronics

leaves 1.7kg for entire airframe.

1kg of barbies

Locations of motors

Just put numbers to the dimensions, like how far forward the motors should be. DON’T assign this for research later, do research now and take the best guess (think about general prop size)

Also consider push motor location

depends on COM

Scale of plane

Wingspan, nose-to-tail dimensions. Remember more wingspan adds more weight. Ideally between 2-3 meters.

30 inch fuselage, 10 inch square.

80 cm fuselage, 25 cm square (height and width)

wings

2.4 meters

40 cm wing chord

Landing gear

VTOL, so relatively basic landing gear. how it attaches/ where it attaches

centered around COM, close to it. Not to overlap with landing pad edges

helicopter skid idea

Decide later for exact numbers.

off the shelf would be structurally nice

Control surfaces

Decide which ones we need. Rough estimates of sizes of each (websites will estimate this fast for us)

use websites to calculate estimations based on wingspan and wing areas. structurally flaps are between boom and fuselage

INTRO to mass budget

(will not have finalized. but crunch some densities or whatever and find a number for an empty frame)

not rn