What are the 7 types of Spatial Disorientations
I - Inversion
C - Coriolis
E - Elevator
F - False Horizon
L - Leans
A - Autokinesis
G - Graveyard Spiral/Spin
S - Somatogravic
feels like you’re tumbling backwards from pitching down too quickly
picking up your pen during a steep turn, making you disorientated and feeling out of balance
updrafts “feels” like you need to pitch forward
downdrafts “feels” like you need to pitch up
clouds or city lights giving you a false horizon
“feels” like you’re straight n level but you’re turning
dark room “white flash” and you still see that light moving, same with flying you see that light out in the distance and all of a sudden you use it as a reference which could be dangerous
Spiral: airspeed is fast, feels like you’re straight & level but you’re actually spiraling downwards
Spin: stalled condition, airspeed is slow, you think you’re descending, causing you to pull back
rapid forward acceleration, making you feel like you’re pitching up, so you pitch down which is wrong
Explain how the vestibular affects spatial disorientation
Cupula “hairs” in your semicircular canals. You have 3 in each ear, filled with fluid. One sense pitch, another senses roll, and the last sense yaw. Whenever you’re body is positioned differently, the hair follows and also has an opposite reaction depending how fast you move.
Basic Med limitations
1) not more than 6 occupants
2) not more than 6,000 lbs
3) VFR or IFR less than 18,000’ MSL
4) less than 250 kts
5) not for compensation or hire
When does Basic Med expire?
4 years on the same day you had your last physical
How to renew Basic Med?
1) CME (comprehensive medical exam) by state licensed physician every 4 years
2) Online medical course every 24 calendar months
1) 12,500 - 14,000’ MSL for longer than 30 minutes crew must use oxygen
2) 14,001’+ entire time crew must use oxygen
3) 15,000’ and above provide it to your passengers
Oxygen night time?
above 6,000’ MSL recommended
4 Types of Hypoxia (HHHS)
1) Hypoxic - lack of oxygen absorbed by the body due to atmospheric conditions. As altitude increases, oxygen remains the same, however pressure decreases. The reduced in pressure becomes insufficient for the oxygen molecules to pass through the respiratory system’s membranes.
2) Hypemic - inability of the blood to carry oxygen. (May be caused from donating blood or CO poisioning)
3) Histotoxic - inability of body cells to use oxygen. (alcohol or drugs).
4) Stagnant - Oxygen deficiency in the body due to poor circulation of the blood
lack of oxygen absorbed by the body due to atmospheric conditions
inability of the blood to carry oxygen.
- smokers are more prone to this
- also if you gave blood that day
Oxygen deficiency in the body due to poor circulation of the blood
inability of the body to use oxygen caused by drugs or alcohol
Rapid breathing and panic
solution: take deep breaths, breathe in brown paper bag, & talking out loud
aka the bends, do not fly after going scuba diving.
gasses and bubbles in your body tissues causing extreme pain and impairment
3 components of oxygen systems
3) Masks or Cannula
Explain the oxygen storage systems (compressed, liquid, candle)
1) Compressed: gas only aviatior’s grade. most economical but heavy storage tanks
2) Liquid: economical but volatile with handling care
3) Candle: sodium chlorate when heated to 350°F, releases oxygen. Fire hazard
Explain the delivery systems (continuous flow, diluter demand, pressure demand)
1) Continuous flow: 28,000ft and LOWER; cannulas, dixie cups (airlines)
2) Diluter demand: 40,000ft and LOWER; quick oxygen during inhale stops during exhale
3) Pressure demand: 40,000ft and ABOVE military aviation; pressurizes lungs to lower altitude
Explain the 4 masks or cannula
1) Nasal Cannulas: restricted to 18,000’ b/c risks of reducing blood saturation levels from beathing through the mouth or talking
2) Oral Nasal Rebreather: up to 25,000’ . Bag exhale mixed w/ 100% oxygen
3) Quick Don Mask: 40,000’ mask at your side, using one hand and 5 seconds or less.
4) Dixie Cup:up to 40,000’ continuous flow oxygen from containers