IAI 1124 Westwind vs IAI Astra 1125

Side-by-side specs, range, and operating costs.

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Dimensions & configuration

Representative planforms, drawn to shared scale.

IAI 1124 Westwind
44.8 × 52.3 ft 15.8 ft tall
2× Turbofan Retractable Pressurized
IAI Astra 1125
52.7 × 55.6 ft 18.2 ft tall
2× Turbofan Retractable Pressurized

Flight Profile

Service ceiling, range, and climb rate.

Tap legend to isolate

Arc represents the climb-cruise-descent profile based on published service ceiling and range. Climb rate annotated on ascent. FL180 (18,000 ft) shown for reference.

Mission Performance

Stall, approach, cruise, range, ceiling and climb: best values are at the top.

Mission performance specifications
Specification IAI 1124 WestwindIAI Astra 1125
Stall speed 99 kt106 kt
Approach speed 120 kt120 kt
Cruise speed 440 kt459 kt
Range 2200 nm—
Service ceiling 45000 ft45000 ft
Rate of climb 3200 fpm—
Fuel burn 242.0 gph215.0 gph

Each axis is scaled independently across the compared aircraft and printed in its own units; every vertex sits at the published figure. Higher is better on all axes: Stall, Approach and Fuel Burn are inverted (lower = higher). A missing figure breaks the line at that axis.

Fuel Burn & Range

Range, endurance, and what the fuel costs by the hour.

IAI 1124 Westwind Jet A
242.0 gph
Baseline
2,200 nm range 1.8 nm/gal 1300 gal usable $1,452 fuel/hr 5h 22m endurance
IAI 1124 Westwind: 242.0 gallons per hour at cruise, 2,200 nautical mile published range, 5 hour 22 minute endurance, 1.8 nautical miles per gallon.
IAI Astra 1125 Jet A
215.0 gph
Baseline

Range not published.

2.1 nm/gal 1297 gal usable $1,290 fuel/hr 6h 01m endurance
IAI Astra 1125: 215.0 gallons per hour at cruise, 6 hour 1 minute endurance, 2.1 nautical miles per gallon.
Jet A range each cell = 1 hr of cruise · width scales with speed

Bars show published still-air range. Endurance is usable fuel divided by the published cruise burn. Estimates only. Always verify against the POH.

Runway Performance

Density altitude adjusted estimates

Outside Air Temp
0°F57°F115°F
Field Elevation
SL4,0008,000 ft
Density Altitude

Takeoff over 50 ft obstacle

Landing ground roll

Base distance DA penalty
Scale: 6,000 ft

FAA 10%/1,000 ft DA rule of thumb (FAA-H-8083-25B). Turboprops and jets are less sensitive in practice. Always verify against the POH.

Estimated Operating Costs

Scale:
IAI 1124 Westwind Jet A
$3,134 /hr
Baseline
IAI 1124 Westwind: $3,134 per flight hour — fuel $1,452, maintenance and reserve $1,682.
IAI Astra 1125 Jet A
$3,030 /hr
Baseline
IAI Astra 1125: $3,030 per flight hour — fuel $1,290, maintenance and reserve $1,740.
IAI 1124 Westwind Turbofan
$0 /yr Baseline
No fixed-cost estimate available
IAI Astra 1125 Turbofan
$0 /yr Baseline
No fixed-cost estimate available

Estimates only. Costs vary by location, pilot profile, and market conditions. See individual aircraft pages for source notes.

Capability & limits

Each bar stacks your selected occupants against full fuel and the aircraft's useful-load limit (the black line). The open gap between them is spare payload. Add an occupant and the gap closes; once it's gone, fuel has to give.

lb

+ lb / pax

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IAI 1124 Westwind
9 / 9 seats 1,300 / 1,300 gal fuel 1,140 lb wet payload 9,850 lb useful 22,850 lb MTOW
IAI Astra 1125
8 / 8 seats 1,297 / 1,297 gal fuel 2,010 lb wet payload 10,700 lb useful 23,500 lb MTOW

Occupants at 190 + 30 lb each. Fuel at 6.7 lb/gal jet-A, 6.0 lb/gal avgas.

Payload-Range Map

Origin: · two fingers to move map

lb

+ lb / pax

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1

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