old engine aerial dragster
6,329 11qazxc
3.6 years ago
Auto Credit Based on MetalManiac54's Old Engine Challenge [CLOSED]
I didn't saw any rules about parts except old engine, so i built this plane.
Only default designer's functions are used.
All characteristics are for 57 meters ASL while controlled by default ai.
Max speed is 401.65m/s (1446km/h).
Fuel time is 1556 seconds at full throttle.
Old prop engine uses thruster's xml, so it works like a jet, and can fly faster than sound without any problems.
Max sustained g-force is 20.
Specifications
General Characteristics
- Predecessor Old Engine Challenge [CLOSED]
- Created On Windows
- Wingspan 50.0ft (15.2m)
- Length 27.3ft (8.3m)
- Height 2.4ft (0.7m)
- Empty Weight 1,441lbs (653kg)
- Loaded Weight 1,718lbs (779kg)
Performance
- Power/Weight Ratio 0.937
- Wing Loading 32.7lbs/ft2 (159.9kg/m2)
- Wing Area 52.5ft2 (4.9m2)
- Drag Points 38
Parts
- Number of Parts 10
- Control Surfaces 3
- Performance Cost 67
@11qazxc wow thanks
@trios21 You probably forgot about wings.
SP can't really calculate real-time aerodynamics, so it calculates very long expression, i proved that for std wing it uses aspect ratio and airfoil.
I'm still not sure about reynolds number, because most of numbers is pre-calculated in designer, so probably it uses chord instead.
Calculated number is multiplied in-flight by second power of IAS, cosine of Angle of Slip, Angle of attack multiplied by sort of polynom given by airfoil, and wing area.
So, to increase glide ratio(and thus decrease drag) you need
minimal wing chord,
maximal aspect ratio, (at some point it will start to flap it's wings)
Symmetric airfoil,
minimal angle of slip,
angle of attack between 0 and 3 deegres.
UPD: all above is a lie, perhaps my instruments wasn't very accurate back then.
AoA is what matters. Highest glide ratio you can get is ~97 for ~8deg AoA with symmetric wing.
how did you get it to go so fast mine only had 17 drag points
@trios21 It's okay, go ahead.
@11qazxc do you mind if i use the design
@trios21 https://en.wikipedia.org/wiki/Sears%E2%80%93Haack_body ,
and some knowledge about SP wing physics.
how did you get so little drag
@redcrafter idk then. Gears have drag and weight, but it still must be able to fly.
fuck that i added some 1 2 i cant even get in the air like yall can
@redcrafter If it's because of landing gears you can start in air.
i cant fly
weighted max speed is 800.1 mph
max speed 889mph, jesus christ. handling 9/10. that is what i call 1st place.