Piper Tri-Pacer vs Socata ST10 Diplomate
Live Market Snapshot
Current asking-price market, aggregated across multiple marketplaces · refreshed daily
Piper Tri-Pacer
- For sale now
- 11
- Median asking
- $47,450
- Range
- $19,875–$85,000
- Listed on 2+ marketplaces
- 3
- Source marketplaces
- 5
- Model years available
- 1950–2019
Socata ST10 Diplomate
No active listings right now.
Live data from AeroGurus, aggregated daily across the used-aircraft market. Figures are current asking prices, not appraisals — confirm with a pre-buy inspection.
Full Specs Comparison
Swipe to see all specs
| Spec / Model | Piper Tri-Pacer | Socata ST10 Diplomate |
|---|---|---|
|
|
|
| Price Range | $19,875 – $85,000 | $20,032 |
| Category | Single Engine Piston | Single Engine Piston |
| Model Specifications | ||
| Seats | 4 | — |
| Horsepower | 150 HP | — |
| Cruise Speed | 115 kts (213 km/h) | — |
| Range | 500 nm (926 km) | — |
| Service Ceiling | 16,000 ft (4,877 m) | — |
| Useful Load | 850 lbs (386 kg) | — |
| Fuel Burn | 8.5 GPH (32 L/h) | — |
| Engines | 1 x Piston | — |
Frequently Asked Questions
Which is better, Piper Tri-Pacer or Socata ST10 Diplomate?
It depends on your mission and budget.
The Tri-Pacer cruises at 115 kts with 500 nm range.
Review the specs table above to find which fits your flying profile.
How do prices compare?
Piper Tri-Pacer: from $89,500.
Socata ST10 Diplomate: from $20,032.
Prices vary by year, hours, avionics, and condition. Always get a pre-buy inspection.
What's the difference between Piper Tri-Pacer and Socata ST10 Diplomate?
Which is cheaper to operate per hour?
Variable cost includes fuel, reserves and overhaul accruals. Annual fixed costs (hangar, insurance, annual inspection) add to the total.
Which has more seats and useful load?
Tri-Pacer: 4 seats / 850 lb useful load.
Useful load = max gross weight minus empty weight; it determines how much fuel plus payload you can carry.
How does maintenance compare — TBO and overhaul cost?
Reaching the time-between-overhaul (TBO) triggers a mandatory engine/airframe rebuild that affects resale value.
Disclaimer: All prices and cost estimates are from third-party sources for informational purposes only. Always obtain professional appraisal and inspection before purchase.
Prices updated daily · Data: FAA Registry, NTSB · About our data