Version history
Props & Governors
26
ASO score
Text
12/100
Reviews
50/100
Graphic
42/100
Other
0/100
App Rating
5
Votes
2
App Age
11y 1m
Last Update
Apr 12, 2021
Compare with Category Top Apps
|
Metrics
|
Current App
|
Category Top Average
|
Difference
|
|---|---|---|---|
|
Rating
|
5
|
4.44
|
+13%
|
|
Number of Ratings (Voted)
|
2
|
127K
|
-100%
|
|
App Age
|
11y 1m
|
9y 8m
|
+15%
|
|
Price
|
$6
|
$0
|
|
|
In-app Purchases Price
|
$0
|
$48
|
|
|
Update Frequency
|
1711d
|
81d
|
+2 000%
|
|
Title Length
|
17
|
25
|
-32%
|
|
Subtitle Length
|
0
|
27
|
|
|
Description Length
|
597
|
2 723
|
-78%
|
|
Number of Screenshots
|
210
|
1346
|
-84
%
|
|
Size
|
0MB
|
162MB
|
|
Category Ranking in United States
7 days
Last 7 days
Last 30 days
Last 90 days
Last 180 days
Last year
| Top | Dec 10, 2025 | Dec 17, 2025 |
|---|---|---|
|
No results were found!
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| Top | Dec 10, 2025 | Dec 17, 2025 |
|---|---|---|
|
No results were found!
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||
| Top | Dec 10, 2025 | Dec 17, 2025 |
|---|---|---|
|
No results were found!
|
||
| Top | Dec 10, 2025 | Dec 17, 2025 |
|---|---|---|
|
No results were found!
|
||
Ranking Keywords in United States
| Keywords | App Rank |
|---|
Analyze this and other apps using Asolytics tools
Text ASO
Title
(
Characters:
17
of 30
)
Props & Governors
Subtitle
(
Characters:
0
of 30
)
Description
(
Characters:
597
of 4000
)
Props & Governors offers an interactive and complete systems presentation on piston aircraft single-engine and multi-engine constant speed propellers and governors.
The course is divided into illustrated and text descriptions of each system, accompanied by interactive training diagrams including a fully functioning Propeller/Governor system for both single and multi-engine aircraft.
Topics covered include:
Manifold Pressure and how it is affected
Propeller governor components (Flyweights, Speeder Spring, Pilot Valve)
Propeller components (Counterweights, Feather Spring, Feathering Pins)}
Read more
Other
Additional Information
Version history
3.1.2
Apr 12, 2021
1、新增PDF文件文本内容查找、文件播放、上次阅读位置记录；
2、新增TXT文件文本内容查找、上次阅读位置记录；
3、文件搜索优化，搜索文件更方便；
4、其他体验优化，畅享无忧办公~
1.3
Feb 17, 2015
This app has been updated by Apple to use the latest Apple signing certificate.
- Updated graphics for Multi-Engine Propeller Hub (Oil and Feathering Spring reversed).
- Minor corrections to text throughout course
