KTWM · Richard B Helgeson Airport

TWO HARBORS, MINNESOTA · SMALL AIRPORT

1,073

Elevation ft

Runways

4,400

Longest ft · 06/24

47.05N

91.75W

Richard B Helgeson Airport serves Two Harbors, Minnesota at 1,073 ft elevation with its longest runway, 06/24, at 4,400 by 75 ft. The figures below are computed from FAA NASR runway data (via OurAirports) and the same rules of thumb JetDesk uses on the airport page in the app; the POH and current NOTAMs are the authority.

Open KTWM in JetDesk: live METAR, TAF, winds and runway verdict →

01Runways

Runway	Length × width	Surface	Lighting
06/24	4,400 × 75 ft	asphalt	lit
15/33	2,581 × 150 ft	turf	unlit

02Density altitude and turboprop runway margins

Standard temperature at 1,073 ft is about 13°C. Every 1,000 ft of density altitude adds roughly 8 percent to a turboprop's takeoff distance and 5 percent to its landing distance. The table uses Piper Meridian book numbers (2,438 ft takeoff and 2,110 ft landing over a 50 ft obstacle at sea level, ISA, max weight) as a reference airplane; heavier turboprops and light jets scale the same way from their own POH figures.

Conditions	Density altitude	Takeoff est.	Landing est.	Landing × 1.5
Standard day (ISA, 13°C)	1,073 ft	2,647 ft	2,223 ft	3,335 ft
Warm day (ISA +10)	2,273 ft	2,881 ft	2,350 ft	3,525 ft
Hot day (ISA +20)	3,473 ft	3,115 ft	2,476 ft	3,715 ft
35°C afternoon	3,731 ft	3,166 ft	2,504 ft	3,755 ft

Planning aid only. Even on a 35°C afternoon the longest runway (06/24, 4,400 ft) covers a Meridian-class turboprop's landing distance with a 50 percent margin (3,755 ft needed). The percentages are a generic rule of thumb applied to one reference airplane, not certified performance data for any specific aircraft, and the runway size categories describe the runway, not your airplane's suitability. Verify with the approved flight manual before every flight.

03Nearby fields with 5,000 ft or more

Useful as alternates, as fuel stops when the price at KTWM is high, or as the longer runway on a hot afternoon.

Airport	Distance	Longest runway
KDLH Duluth International Airport	22 nm SW	10,591 ft
KDYT Sky Harbor Airport	23 nm SW	10,000 ft
KSUW Richard I Bong Memorial Airport	26 nm SW	5,100 ft
KASX John F Kennedy Memorial Airport	45 nm SE	5,197 ft
KELO Ely Municipal Airport	47 nm N	5,596 ft

04Jet A prices and FBOs at KTWM

No public API publishes FBO fuel prices, so JetDesk does not guess. Pilots and crews log the price they actually paid at KTWM, the app flags a price stale after two weeks, and the route finder ranks every field within a corridor of your route by net savings after the cost of the extra cycle. Log a price at KTWM or read what a fuel stop actually saves.

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