BT Engine Pack
⚪ Last updated 2013This mod may not work until the author updates it. Check for an update, or see the rollback guide.
Preview

🔍 Analysis
- 👍 2.7% endorsement rate — high engagement, a strong quality signal
- 🏆 #1 of 8 Vehicles mods in this game by downloads
📋 About This Mod
This is a simple and yet useful set of two engines.
First the ScramJet. Useless on the ground, but provides thrust at much higher altitudes then the stock jet engines, without the need to air hog. Best if used over Mach 1400 m/s, peaking at 1700 m/s. Huge ISP at high altitudes (above 8000 meters).
Next the Merlin 1D. I decided that since I have a realistic engine that seems massively underpowered to the point I had to tune it up, why not add a realistic engine that seems massively overpowered to the point I have to tune it down. With that in mind I added the Merlin 1-D Rocket Engine. It has about half the thrust of the real thing, but the ISP is the same. Which still makes it perhaps the most powerful engine for its tier in the game.
BT Engine Pack adds two engines to Kerbal Space Program: a ScramJet optimized for high-altitude, high-speed flight above Mach 1400 m/s, and a Merlin 1D rocket engine with half the real thrust but matching ISP, making it powerful for its tier. This vehicle category mod offers simple, useful additions.
✨ Key Features
📊 Pros & Cons
✅ Pros
- 78 endorsements indicate community approval.
- 2,938 downloads show moderate popularity.
- Simple set of two engines, easy to integrate.
⚠️ Cons
- ScramJet is useless on the ground, limiting its use to specific flight profiles.
- Merlin 1D is overpowered, requiring tuning down for balance.
This mod is for Kerbal Space Program players who enjoy realistic engine options and want to experiment with high-altitude, high-speed flight or powerful rocket engines. It's ideal for those seeking simple additions without complex dependencies. Players looking for balanced, stock-like parts might need to adjust settings.
💡 Beginner Tips
- Use the ScramJet only at high altitudes and speeds above Mach 1400 m/s for best performance.
- The Merlin 1D is powerful, so consider adding it to larger rockets or adjusting thrust limits.
- Test engines in sandbox mode to understand their flight envelopes before using in career.
📊 Mod Details
- Game
- KSP Mods
- Author
- chase
- Version
- 1.3
- Downloads
- 2,938
- Endorsements
- 78
- Category
- Vehicles
- Created
- 12/12/2013
- Updated
- 12/11/2013
🔧 How to Install KSP Mods
Use CKAN mod manager. Most mods go in /GameData/ folder.
📖 Full step-by-step install guide for KSP →
Visit the official mod page for specific installation instructions for this mod.
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