This guide separates verified specifications already published in the APS product records from general engineering selection advice. It does not establish payload, range, fuel consumption, service life or airworthiness. The 222cc platform label includes DLE222; its recorded displacement is shown unchanged below.
01 / MODEL RECORDS
Verified specifications
Values below are read directly from the existing APS product records. Units and stated conditions are retained. Follow each model link for the full record; request the applicable documentation revision before design release.
DLE170
- Displacement
- 170 cm³
- Recorded power
- 10.77 kW @ 7,500 rpm
- Engine weight
- 3,620 g
- Overall dimensions
- Not published — request drawings
- Listed propeller sizes
- 30 × 12 / 32 × 10
DLE222
- Displacement
- 222.5 cm³
- Recorded power
- 11.76 kW @ 7,523 rpm
- Engine weight
- 4,860 g
- Overall dimensions
- Not published — request drawings
- Listed propeller sizes
- 32 × 10 / 32 × 12 / 34 × 10
ZT-T170
- Displacement
- 170 cc
- Recorded power
- 18.1 hp / 13.3 kW
- Engine weight
- 3.93 kg
- Overall dimensions
- 340 × 232 × 190 mm
- Listed propeller sizes
- 30 × 12 / 32 × 10
ZT-T222
- Displacement
- 222 cc
- Recorded power
- 20.9 hp / 15.3 kW
- Engine weight
- 4.86 kg
- Overall dimensions
- 320 × 270 × 180 mm
- Listed propeller sizes
- 32 × 10 / 32 × 12 / 34 × 10
Recorded power entries have different reporting detail and are not a common-condition performance test. Engine weight is not installed propulsion-system weight. Overall dimensions do not define mounting interfaces or service clearances. Listed propeller sizes require configuration-specific confirmation.
02 / SHORTLIST REVIEW
General engineering selection advice
When to assess a 170cc platform
Shortlist DLE170 and ZT-T170 when their documented mass, propeller options and installation requirements can fit the aircraft brief. Review both individually: a shared displacement class does not make their power records, mounting interfaces or accessories interchangeable.
When to assess a 222cc platform
Shortlist DLE222 and ZT-T222 when the design can accommodate their individual mass and propeller requirements, and a configuration-level review is needed alongside the 170cc options. Do not infer a payload increase or a mission capability from displacement or a static-thrust figure.
When neither platform is ready for selection
Keep the decision open if installation drawings, installed mass, operating-condition data or propeller compatibility are missing. Request the missing evidence and define acceptance criteria before committing the airframe design.
03 / PROJECT PREPARATION
Project and integration checklist
Project requirements
Document the civilian aircraft application, operating phases, required propulsion duty and acceptance criteria. Supply aircraft-level analyses for the intended payload and range; engine displacement alone cannot validate either.
Installation space
Check mounting points, load paths, cowling envelope, propeller clearance, exhaust routing, cooling airflow and access for inspection. Request installation drawings; overall dimensions are not a mounting drawing.
Weight budget
Build an installed-mass budget covering engine, exhaust, ignition, mounting hardware, propeller, fuel system and wiring. Confirm what each supplied weight includes. DLE records list exhaust and ignition separately; do not treat the ZT weight as an equivalent complete system.
Propeller matching
Use the listed sizes as starting points for discussion. Confirm diameter, pitch, hub interface, clearance, allowable speed and engine operating point with the relevant documentation and engineering review. A listed size is not evidence of a validated aircraft combination.
High-altitude environment
Specify airfield elevation, operating altitude, temperature and the intended duty. Published thrust entries retain their stated altitude only; propeller, method and other conditions require confirmation. Do not extrapolate those entries into an altitude ceiling, climb performance or payload allowance.
Maintenance
Request the applicable maintenance instructions, inspection intervals, consumables and service-access requirements. Confirm fuel and lubrication requirements for each configuration. Do not assume a service life or transfer an interval between models.
OEM integration
Agree the configuration and document revision, mounting and vibration review, cooling, fuel and electrical interfaces, instrumentation and ground-test acceptance plan. Identify responsibility for aircraft-level validation and any applicable approvals; this guide does not establish airworthiness.
Prepare the technical-data request
Include the shortlisted models, project requirements, installation envelope, weight budget, intended propeller and operating conditions. Identify missing drawings or configuration data so the engineering discussion can address specific gaps.
Request Technical Data