User manual for the DLE 20RA 2.5HP engine, covering safety, specifications, adjustment, startup, and maintenance instructions.
This document is the user manual for the DLE 20RA engine. It provides essential safety warnings, such as ensuring the engine is not used as a toy and checking for loose screws before operation. The manual details the engine's performance specifications, including power output, static thrust, and physical dimensions.
| Power | 2.5HP/9000rpm |
|---|---|
| Idle Speed | 1700 rpm/min. |
| Static Thrust (100m) | 6.3Kg |
| Static Thrust (1800m) | 5.6Kg |
| Propeller Specification | 14×10; 15×8; 16×6; 17×6 |
| Spark Plug Type | NGK CM6 |
| Displacement | 20cm3 |
| Bore x Stroke | 32mm x 25mm |
| Compression Ratio | 10.5:1 |
| Lubrication Ratio | 30:1 |
| Weight (Main Engine) | 660g |
| Weight (Exhaust Pipe) | 80g |
| Weight (Ignition Equipment) | 130g |
| Ignition Voltage | 4.8V -14V |
The ratio of petrol and engine oil is 30:1.
The recommended propeller specifications are 14×10, 15×8, 16×6, and 17×6.
The engine should be broken in at 4500 rpm/min for 2 hours.