Sierra Academy of Aeronautics

Atwater, California, United States· Castle Airport(KMER)

✓ Approved by FAA

Sierra Academy of Aeronautics at a glance

Sierra Academy of Aeronautics is a flight school at Castle Airport (KMER) in Atwater, United States. It offers training for Private pilot licence (PPL), Instrument rating, Commercial pilot licence (CPL), Multi-engine rating, Flight instructor, and Trial flights. Its fleet includes Cessna 150 / 152, Cessna 172, Piper PA-44 Seminole, and Flight simulator. At Castle Airport, 85% of daylight hours have weather suitable for training flights. The best months are May, June, and July; December is the most difficult. There is 1 other flight school within 31 miles.

Courses and training

Trial flights

This school offers trial flights.

Prices

Course or itemPrice
Cessna 152 Rental
hour
$120
Cessna 172 Skyhawk Rental
hour
$165
Cessna 172 G1000 Rental
hour
Includes: glass cockpit
$199
Multi-Engine Aircraft Rental
hour
$340
CFI Instruction
hour
Includes: single-engine instruction
$70
MEI Instruction
hour
Includes: multi-engine instruction
$90
Redbird Simulator
hour
$75
Instrument Rating Part 61
course
Includes: 20 hrs C172, 30 hrs instructor, 10 hrs sim, 10 hrs ground, pre/post ground, fees, materials
$7,905
Instrument Rating Part 141
course
Includes: 25 hrs C172, 35 hrs instructor, 10 hrs sim, 10 hrs ground, 40 hrs ground school, pre/post ground, fees, materials
$11,240
On-Campus Housing
day
$40
Meals
day
$25

Prices last checked September 2026. Always confirm the current price with the school.

Aircraft

Typical flying weather at Castle Airport

Share of daylight hours each month with weather suitable for training flights (cloud base at least 3,000 ft, visibility at least 5 statute miles / 8 km, wind no more than 20 knots, no thunderstorms, freezing conditions or snow).

61% Jan
84% Feb
89% Mar
94% Apr
96% May
97% Jun
98% Jul
89% Aug
92% Sep
91% Oct
74% Nov
56% Dec

From weather reports at MERCED/CASTLE AF (0 miles from the airfield), 2016–2025.

Location

Airfield
Castle Airport(KMER)

Source: FAA records, and the school’s own website.Details last checked September 2026.

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