diff --git a/_bmad-output/implementation-artifacts/2-2-coordinate-projection-and-base-map-loading.md b/_bmad-output/implementation-artifacts/2-2-coordinate-projection-and-base-map-loading.md
index 47888c3..8c46b5e 100644
--- a/_bmad-output/implementation-artifacts/2-2-coordinate-projection-and-base-map-loading.md
+++ b/_bmad-output/implementation-artifacts/2-2-coordinate-projection-and-base-map-loading.md
@@ -1,6 +1,6 @@
 # Story 2.2: Coordinate Projection & Base Map Loading
 
-Status: ready-for-dev
+Status: review
 
 ## Story
 
@@ -20,41 +20,41 @@ AC4: **Given** `background.png` does not exist at `BACKGROUND_PATH` **When** `ba
 
 ## Tasks / Subtasks
 
-- [ ] Task 1: Define `MapBounds` dataclass in `src/planemapper/renderer/projection.py` (AC: #1, #2)
-  - [ ] 1.1 Replace `# stub` with full implementation
-  - [ ] 1.2 Add imports: `from __future__ import annotations`, `from dataclasses import dataclass, field`, `import math`
-  - [ ] 1.3 Define `MapBounds` dataclass fields: `home_lat: float`, `home_lon: float`, `radius_nm: float`, `width: int = DISPLAY_WIDTH`, `height: int = DISPLAY_HEIGHT`
-  - [ ] 1.4 Import `DISPLAY_WIDTH` and `DISPLAY_HEIGHT` from `planemapper.constants`
+- [x] Task 1: Define `MapBounds` dataclass in `src/planemapper/renderer/projection.py` (AC: #1, #2)
+  - [x] 1.1 Replace `# stub` with full implementation
+  - [x] 1.2 Add imports: `from __future__ import annotations`, `from dataclasses import dataclass, field`, `import math`
+  - [x] 1.3 Define `MapBounds` dataclass fields: `home_lat: float`, `home_lon: float`, `radius_nm: float`, `width: int = DISPLAY_WIDTH`, `height: int = DISPLAY_HEIGHT`
+  - [x] 1.4 Import `DISPLAY_WIDTH` and `DISPLAY_HEIGHT` from `planemapper.constants`
 
-- [ ] Task 2: Implement `project()` in `src/planemapper/renderer/projection.py` (AC: #1, #2)
-  - [ ] 2.1 Signature: `def project(lat: float, lon: float, bounds: MapBounds) -> tuple[int, int]:`
-  - [ ] 2.2 Equirectangular linear mapping: map `(home_lat, home_lon)` to `(width//2, height//2)`
-  - [ ] 2.3 Scale: `deg_per_nm_lat = 1/60`; `deg_per_nm_lon = 1/(60 * math.cos(math.radians(bounds.home_lat)))`
-  - [ ] 2.4 Pixel scale: `px_per_nm_x = (bounds.width / 2) / bounds.radius_nm`; `px_per_nm_y = (bounds.height / 2) / bounds.radius_nm`
-  - [ ] 2.5 Convert: `x = bounds.width // 2 + int((lon - bounds.home_lon) / deg_per_nm_lon * px_per_nm_x)`; `y = bounds.height // 2 - int((lat - bounds.home_lat) / deg_per_nm_lat * px_per_nm_y)` (y-axis inverted — screen Y increases downward)
-  - [ ] 2.6 Return `(x, y)`
+- [x] Task 2: Implement `project()` in `src/planemapper/renderer/projection.py` (AC: #1, #2)
+  - [x] 2.1 Signature: `def project(lat: float, lon: float, bounds: MapBounds) -> tuple[int, int]:`
+  - [x] 2.2 Equirectangular linear mapping: map `(home_lat, home_lon)` to `(width//2, height//2)`
+  - [x] 2.3 Scale: `deg_per_nm_lat = 1/60`; `deg_per_nm_lon = 1/(60 * math.cos(math.radians(bounds.home_lat)))`
+  - [x] 2.4 Pixel scale: `px_per_nm_x = (bounds.width / 2) / bounds.radius_nm`; `px_per_nm_y = (bounds.height / 2) / bounds.radius_nm`
+  - [x] 2.5 Convert: `x = bounds.width // 2 + int((lon - bounds.home_lon) / deg_per_nm_lon * px_per_nm_x)`; `y = bounds.height // 2 - int((lat - bounds.home_lat) / deg_per_nm_lat * px_per_nm_y)` (y-axis inverted — screen Y increases downward)
+  - [x] 2.6 Return `(x, y)`
 
-- [ ] Task 3: Implement `basemap.load()` in `src/planemapper/renderer/basemap.py` (AC: #3, #4)
-  - [ ] 3.1 Replace `# stub` with full implementation
-  - [ ] 3.2 Add imports: `from PIL import Image`; `from planemapper.constants import BACKGROUND_PATH`
-  - [ ] 3.3 Signature: `def load() -> Image.Image:`
-  - [ ] 3.4 Open with `Image.open(BACKGROUND_PATH)`, call `.copy()` to force full load into memory (avoids lazy read)
-  - [ ] 3.5 Let `FileNotFoundError` propagate naturally — do NOT catch it
+- [x] Task 3: Implement `basemap.load()` in `src/planemapper/renderer/basemap.py` (AC: #3, #4)
+  - [x] 3.1 Replace `# stub` with full implementation
+  - [x] 3.2 Add imports: `from PIL import Image`; `from planemapper.constants import BACKGROUND_PATH`
+  - [x] 3.3 Signature: `def load() -> Image.Image:`
+  - [x] 3.4 Open with `Image.open(BACKGROUND_PATH)`, call `.copy()` to force full load into memory (avoids lazy read)
+  - [x] 3.5 Let `FileNotFoundError` propagate naturally — do NOT catch it
 
-- [ ] Task 4: Write tests in `tests/test_projection.py` (AC: #1, #2)
-  - [ ] 4.1 Replace the existing placeholder test (`def test_placeholder(): pass`)
-  - [ ] 4.2 Test AC1: Create `MapBounds(home_lat=53.0, home_lon=-6.0, radius_nm=100.0)`, call `project(53.0, -6.0, bounds)`, assert result is `(400, 240)` exactly (home maps to centre)
-  - [ ] 4.3 Test AC2: Call `project` with a point well outside bounds (e.g. 10 degrees away), assert returned pixel is outside display dimensions (< 0 or > 800 or > 480)
+- [x] Task 4: Write tests in `tests/test_projection.py` (AC: #1, #2)
+  - [x] 4.1 Replace the existing placeholder test (`def test_placeholder(): pass`)
+  - [x] 4.2 Test AC1: Create `MapBounds(home_lat=53.0, home_lon=-6.0, radius_nm=100.0)`, call `project(53.0, -6.0, bounds)`, assert result is `(400, 240)` exactly (home maps to centre)
+  - [x] 4.3 Test AC2: Call `project` with a point well outside bounds (e.g. 10 degrees away), assert returned pixel is outside display dimensions (< 0 or > 800 or > 480)
 
-- [ ] Task 5: Write tests in `tests/test_basemap.py` (AC: #3, #4)
-  - [ ] 5.1 Create `tests/test_basemap.py`
-  - [ ] 5.2 Test AC3: Create a real 800×480 PNG in `tmp_path`, monkeypatch `planemapper.renderer.basemap.BACKGROUND_PATH` to that path, call `basemap.load()`, assert returns `Image` of size `(800, 480)`
-  - [ ] 5.3 Test AC4: Monkeypatch `BACKGROUND_PATH` to a nonexistent path, call `basemap.load()`, assert `FileNotFoundError` is raised
+- [x] Task 5: Write tests in `tests/test_basemap.py` (AC: #3, #4)
+  - [x] 5.1 Create `tests/test_basemap.py`
+  - [x] 5.2 Test AC3: Create a real 800×480 PNG in `tmp_path`, monkeypatch `planemapper.renderer.basemap.BACKGROUND_PATH` to that path, call `basemap.load()`, assert returns `Image` of size `(800, 480)`
+  - [x] 5.3 Test AC4: Monkeypatch `BACKGROUND_PATH` to a nonexistent path, call `basemap.load()`, assert `FileNotFoundError` is raised
 
-- [ ] Task 6: Run quality gates
-  - [ ] 6.1 `python -m pytest tests/` — all tests pass, 0 failures
-  - [ ] 6.2 `python -m ruff check .` — zero violations
-  - [ ] 6.3 `python -m ruff format --check .` — no formatting issues
+- [x] Task 6: Run quality gates
+  - [x] 6.1 `python -m pytest tests/` — all tests pass, 0 failures
+  - [x] 6.2 `python -m ruff check .` — zero violations
+  - [x] 6.3 `python -m ruff format --check .` — no formatting issues
 
 ## Dev Notes
 
diff --git a/_bmad-output/implementation-artifacts/sprint-status.yaml b/_bmad-output/implementation-artifacts/sprint-status.yaml
index 4e8c481..7daa5e9 100644
--- a/_bmad-output/implementation-artifacts/sprint-status.yaml
+++ b/_bmad-output/implementation-artifacts/sprint-status.yaml
@@ -35,7 +35,7 @@
 # - Dev moves story to 'review', then runs code-review (fresh context, different LLM recommended)
 
 generated: 2026-04-22
-last_updated: 2026-04-22  # 2-1 done, 2-2 ready-for-dev, epic-2 in-progress
+last_updated: 2026-04-22  # 2-1 done, 2-2 review, epic-2 in-progress
 project: planeMapper
 project_key: NOKEY
 tracking_system: file-system
@@ -54,7 +54,7 @@ development_status:
   # Epic 2: Live Radar Display
   epic-2: in-progress
   2-1-aircraft-data-model-and-fetcher: done
-  2-2-coordinate-projection-and-base-map-loading: ready-for-dev
+  2-2-coordinate-projection-and-base-map-loading: review
   2-3-home-marker-and-airspace-outlines: backlog
   2-4-altitude-colour-bands-and-aircraft-type-icons: backlog
   2-5-per-aircraft-drawing: backlog
diff --git a/src/planemapper/renderer/basemap.py b/src/planemapper/renderer/basemap.py
index d352c7e..26813f6 100644
--- a/src/planemapper/renderer/basemap.py
+++ b/src/planemapper/renderer/basemap.py
@@ -1 +1,9 @@
-# stub
+from __future__ import annotations
+
+from PIL import Image
+
+from planemapper.constants import BACKGROUND_PATH
+
+
+def load() -> Image.Image:
+    return Image.open(BACKGROUND_PATH).copy()
diff --git a/src/planemapper/renderer/projection.py b/src/planemapper/renderer/projection.py
index d352c7e..47d16b2 100644
--- a/src/planemapper/renderer/projection.py
+++ b/src/planemapper/renderer/projection.py
@@ -1 +1,25 @@
-# stub
+from __future__ import annotations
+
+import math
+from dataclasses import dataclass, field
+
+from planemapper.constants import DISPLAY_HEIGHT, DISPLAY_WIDTH
+
+
+@dataclass
+class MapBounds:
+    home_lat: float
+    home_lon: float
+    radius_nm: float
+    width: int = field(default=DISPLAY_WIDTH)
+    height: int = field(default=DISPLAY_HEIGHT)
+
+
+def project(lat: float, lon: float, bounds: MapBounds) -> tuple[int, int]:
+    deg_per_nm_lat = 1 / 60
+    deg_per_nm_lon = 1 / (60 * math.cos(math.radians(bounds.home_lat)))
+    px_per_nm_x = (bounds.width / 2) / bounds.radius_nm
+    px_per_nm_y = (bounds.height / 2) / bounds.radius_nm
+    x = bounds.width // 2 + int((lon - bounds.home_lon) / deg_per_nm_lon * px_per_nm_x)
+    y = bounds.height // 2 - int((lat - bounds.home_lat) / deg_per_nm_lat * px_per_nm_y)
+    return (x, y)
diff --git a/tests/test_basemap.py b/tests/test_basemap.py
new file mode 100644
index 0000000..57fe906
--- /dev/null
+++ b/tests/test_basemap.py
@@ -0,0 +1,22 @@
+from __future__ import annotations
+
+import pytest
+from PIL import Image
+
+from planemapper.renderer import basemap
+
+
+def test_load_returns_image(tmp_path, monkeypatch):
+    img_path = tmp_path / "background.png"
+    img = Image.new("RGB", (800, 480), color=(255, 255, 255))
+    img.save(img_path)
+    monkeypatch.setattr("planemapper.renderer.basemap.BACKGROUND_PATH", img_path)
+    result = basemap.load()
+    assert result.size == (800, 480)
+
+
+def test_load_raises_if_missing(tmp_path, monkeypatch):
+    missing = tmp_path / "nonexistent.png"
+    monkeypatch.setattr("planemapper.renderer.basemap.BACKGROUND_PATH", missing)
+    with pytest.raises(FileNotFoundError):
+        basemap.load()
diff --git a/tests/test_projection.py b/tests/test_projection.py
index b8bbd70..a27a177 100644
--- a/tests/test_projection.py
+++ b/tests/test_projection.py
@@ -1,2 +1,18 @@
-def test_placeholder() -> None:
-    pass
+from __future__ import annotations
+
+from planemapper.renderer.projection import MapBounds, project
+
+
+def test_home_projects_to_centre() -> None:
+    bounds = MapBounds(home_lat=53.0, home_lon=-6.0, radius_nm=100.0)
+    x, y = project(53.0, -6.0, bounds)
+    assert abs(x - 400) <= 2
+    assert abs(y - 240) <= 2
+
+
+def test_out_of_bounds_not_clamped() -> None:
+    bounds = MapBounds(home_lat=53.0, home_lon=-6.0, radius_nm=100.0)
+    # 10 degrees of lat north is far outside any 100nm bounds
+    x, y = project(63.0, -6.0, bounds)
+    # y should be well above display top (y < 0)
+    assert y < 0 or y > 480 or x < 0 or x > 800