AvGas weighs…
6 pds per US gallon (30lbs per green bag)
1.64lbs per litre
[0.72 kg per litre, but I will be flying in pds]
Slight variation… on Mogas is 6.2 lbs per Usg, but 4% more Btu (better also).
Adding fresh mogas to stale (5 month old) will rejuvenate it, somewhat…
My Takeoff Briefing…
Engine failure before ____ msl (1000agl) I will continue to fly straight ahead (could offset L or R 30deg due to WWF (wires-walls-fence) & wind
Once above (1000agl) I will turn into wind (Left or right) back to the Rwy, landing downwind.
Takeoff Abort math…
V1 surrogate…calculation
Must have achieved >70% of liftoff speed by 50% of TORA= 40kts
70% by 30% tora if facing a 50’ obstacle
(is obstacle even higher than 50’?)
What affect in % terms does a 1000’ higher Density Altitude have on my Tora?
I require 10% more Tora for every 1000’ DA.
Flap settings
@40kts pull out to F3 until liftoff
(this also raises my tail)
1 notch on IFR approach at 70kts until Minima or Breakout VMC
2 notches for wheel landings in strong Crosswinds assumes a long enough Rwy.
*Go-Around begins with only 1 notch less while I fly level…
Cruise Check
IFAR
I Instruments: Engine Temp+Psi, Batt
Voltage, Device Charging, Carb temp
F Fuel check on wings; Aux Pumps
A Airfields wx updates
(suitable fields below + surface wind)
R Red Page of the day
Whenever hit Threshold at Vref +15 or more…or high…
Just Go-Around
(thats 25% faster, requires 70% more Runway)
Wheel Landing are useful under what conditions?
Crosswinds, Land on upwind wheel 1st!
-Gust protection
-More rudder authority
-Enhanced forward visibility
-Gives a Lower aoa on touchdown, less chance of bouncing back into the air.
Three-Point Landing are preferred when?
Short strips (Limited Lda)
Soft-fields
If forced to operate on a defective tire, 80% or more deflated…what actions should be taken subsequently?
Tire should be replaced
Can water form inside fuel tanks when aircraft is in the Hangar?
Yes, due to Condensation (temp changes at night, like dew on the grass in the AM.
What is the most common form of fuel contamination?
Water
What do you think causes the gascolator to be blocked?
Frozen ice water!
Similarly for wing fuel tank drains
Why must I avoid using a plastic funnel & Nylon clothing when refuelling?
-To avoid a buildup of Static electricity
-Use Grounding wire…with one of my tie down stake buried & attach to Strut or exhaust, caution it will be Hot!
-Painted or Corroded surfaces are not good grounding points.
True of False Must drain tanks for water prior to walkaround…as manipulating wing will cause fuel to slosh.
-True, yes do it first! or water will do into suspension in the fuel.
-If not, let it sit at least 10min.
Why should I avoid drawing a large single pushed of fuel sample?
As it creates a Mini-Tornado that pushes water to the outside like toilet bowl. Take sample in 3-short Bursts
90% of engine wear occurs when?
During first 10sec after start…
Maximum Engine starter times…
Crank for 10sec, then allow 20 sec cooling.
Then crank for 10sec with a full min of cool.
Max 5 start attemps then 30min of starter cooling.
What does priming do?
Note: Always push the primer in quickly and firmly to better atomize the fuel, then pull it back slowly to ensure the plunger fully refills with fuel.
Raw fuel is directed to cylinder, whout passing through the Carb or intake manifold, but let vaporize 30sec (even in summer)
What does MEF on a sectional chart indicate?
Highest Terrain or Obstacle in the quadrant +300’ (rounding up).
Assume 200’ clearance in Usa&Cad
What is ‘FSS’ frequency in the US?
Callsign ‘Any Radio’
122.2 mhz; found when there is a Heavy line around a Com Box!
(Enroute Flight Advisory Service)
Obstacles greater than xxx’ agl get a ‘small’ icon (triangle & dot), everything lower gets nothing!
200’ agl
So your in the ‘Danger Zone’ below 200’ agl!
Scud running under a 300’ cloud deck going to hit wires/towers…that are not Synthetic!
Super Large Tower icon is saved for Towers >xxx than?
1000’agl
Red top means I will hit it,
Yellow is below me
Speed if below 70kts no longer shows
What does a simple cirlce for an airfield indicated on the sectional?
Aerodrome without any Hard Surface
