Tomark VIPER SD-4
Light Sport · 15 active US registrations
Purchase Price
$30K-$200K
Horsepower
100 hp
Fuel Burn
4.9 gph
Cost/Hour
$38.35/hr
US Fleet
15
Ownership Cost Summary
Purchase
$30K-$200K
Annual Fixed
$6K-$12K
/yr
Hourly Variable
$38.35/hr
/flight hour
5-Year Total
$77K-$299K
Cost estimates based on published data and industry averages. Actual costs vary by condition, location, usage, and maintenance history.0
Specifications & Engine
Performance
Engine & Weights
Source: FAA Type Certificate Data Sheet, ENGINE.txt registry. TBO and overhaul costs from industry standard data.
Market Prices by Year
Typical asking prices. Actual prices vary by condition, total time, avionics, and engine time.
Similar Light Sport Aircraft
Compare the VIPER SD-4 to other light sport aircraft.
Insurance Estimates
Annual hull + liability premiums by pilot experience.
Hangared aircraft save 15-30% on premiums
Covered tiedown vs. open tiedown also affects rates.
Rates are estimates only and vary by hull value, pilot experience, training, location, and carrier. Contact an aviation insurance broker for accurate quotes.
Safety Record
NTSB data, 1982-2025.
1
Total Reports
1
Accidents
0
Fatal
66.7
Per 1K Fleet
Raw NTSB report counts. Not a safety rating. Factors including fleet size, flight hours, pilot demographics, and mission profile affect rates.
Fuel Cost
4.9 gph at ~$6.50/gal 100LL
$32
/hr
$3,185
100 hrs
$6,370
200 hrs
Prices vary by region. View by state.
Fleet & Registration
15
Active US Registrations
Source: FAA Aircraft Registry (active, valid registrations).
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Frequently Asked Questions
How much does a Tomark VIPER SD-4 cost?
A Tomark VIPER SD-4 typically sells for $30,000 to $200,000 depending on year, condition, total time, and avionics.
How much does it cost per hour to fly a Tomark VIPER SD-4?
The variable cost is approximately $38.35/hr, including fuel, oil, and engine reserve.
What is the fuel burn of a Tomark VIPER SD-4?
Approximately 4.9 gallons per hour at normal cruise.
What are the annual costs of owning a Tomark VIPER SD-4?
Annual fixed costs run $5,529 to $12,046/yr before fuel and engine reserves.
How much does an engine overhaul cost on a Tomark VIPER SD-4?
$10,000 to $16,000, TBO of 2,000 hours.
How many Tomark VIPER SD-4 aircraft are still flying?
There are 15 Tomark VIPER SD-4 aircraft with active US registrations according to the FAA Aircraft Registry.
Important Disclaimer
All cost estimates, specifications, and data on HangarMath are provided for informational and educational purposes only. This information does not constitute financial, legal, or aviation safety advice. Aircraft ownership involves significant financial risk, and actual costs can vary dramatically from estimates shown here. Always conduct your own due diligence, hire a qualified A&P/IA mechanic for prebuy inspections, consult with an aviation attorney for purchase agreements, and work with a certified financial advisor before making aircraft purchase decisions. HangarMath makes no warranties about the accuracy, completeness, or reliability of any data presented. We are not responsible for any financial losses, property damage, personal injury, or death that may result from decisions made based on information found on this site.