Brm Aero BRISTELL vs Tomark Viper SD4
The Tomark SD-4 Viper and BRM Aero Bristell are modern all-metal low-wing LSAs — both comfortable side-by-side Slovak/Czech two-seaters.
Live Market Snapshot
Current asking-price market, aggregated across multiple marketplaces · refreshed daily
Brm Aero BRISTELL
- For sale now
- 19
- Median asking
- $239,000
- Range
- $144,000–$421,600
- Model years available
- 2011–2026
Tomark Viper SD4
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.
Safety Record
Absolute counts scale with fleet size — the most-produced types log more events without being less safe. Compare the % fatal.
| NTSB (1982–now) | Brm Aero BRISTELL | Tomark Viper SD4 |
|---|---|---|
| All events | 3 | 1 |
| Serious | 0 | 0 |
| Fatal | 2 | 0 |
| Fatalities | 3 | 0 |
| % Fatal | 67% | 0% |
Full Specs Comparison
Swipe to see all specs
| Spec / Model | Brm Aero BRISTELL | Tomark Viper SD4 |
|---|---|---|
|
Median $239,000
|
|
|
| Price Range | $144,000 – $421,600 | $128,546 – $179,000 |
| Category | — | Light Sport |
| Model Specifications | ||
| Seats | 2 | — |
| Horsepower | 100 HP | — |
| Cruise Speed | 115 kts (213 km/h) | — |
| Range | 700 nm (1,296 km) | — |
| Service Ceiling | 14,000 ft (4,267 m) | — |
| Useful Load | 600 lbs (272 kg) | — |
| Fuel Burn | 5.0 GPH (19 L/h) | — |
| Engines | 1 x Piston | — |
Frequently Asked Questions
Which is better, Brm Aero BRISTELL or Tomark Viper SD4?
It depends on your mission and budget.
The BRISTELL cruises at 115 kts with 700 nm range.
Review the specs table above to find which fits your flying profile.
How do prices compare?
Tomark Viper SD4: from $128,546.
Prices vary by year, hours, avionics, and condition. Always get a pre-buy inspection.
What's the difference between Brm Aero BRISTELL and Tomark Viper SD4?
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?
BRISTELL: 2 seats / 600 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