Due to the very wide chord of the HRT blade additional clearance considerations must be made when using the Sam James RV cowl as well as Van’s and aftermarket ram air induction systems.
HRT 3-Blade SERIES
The high speed, high performance Whirl Wind HRT Series non-counterweighted propeller systems incorporate a “scimitar” style swept-tip blade profile with a wider tip than our 74RV Series and are available in two or three blade configurations. The systems consist of carbon fiber blades with electroformed nickel leading edge erosion shields, CNC machined aerospace grade aluminum hub and a composite spinner assembly. The HRT Series propellers have been designed for operation in the rain and snow and are perfectly suited for operations off unimproved airstrips.
The advanced blade shapes of the HRT Series are possible due to advanced carbon composite structure manufacturing techniques developed by Whirl Wind. This cutting edge process involves overlaying the thermoset carbon fiber composites over a high density foam core. This new technology has yielded a thinner yet very strong blade. The slightly broader swept tip blade plan form airfoil design has been designed for optimized blade loading on high speed platforms.
Beta tested at the 2016 and 2017 Reno Air Races, these exciting new Whirl Wind propeller systems have raised the bar of performance in our industry.
Also available in 2 blade configurations.
| Propeller: | 373HRT | 375HRT | 378HRT |
| Engine Type: | (I)O-360 10:1 Max (I)O-370/375 CW Crank 10:1 Max (I)0-370/375 No CW Crank 9.6:1 Max (I)O-390 10:1 Max | (I)O-540 10:1 Max | (I)O-540 10:1 Max |
| Other Limitations: | P-Mags must use jumper wire | ||
| Engine HP: | 220 – 240 hp | 260 – 300 hp | 300 – 400 hp |
| Max RPM: | 2700 RPM | ||
| Number of Blades: | 3 | 3 | 3 |
| Diameter: | 73″ (1856.0 cm) | 75″ (190.5 cm) | 78″ (198.0 cm) |
| System Weight: | 55 lbs (25.0 kg) including spinner | 57 lbs (25.8 kg) including spinner | |
| Tear Down Inspection: | 800 hours or 6 years | ||
| Control: | Jihostroj P-920-028/A | ||
| Standard Finish: | White with Red Tips or Black with White Tips*Custom Colors Subject to Additional Charge | ||
| Spinner: | Composite 13″ or 15″ Other options available | Composite 13.9″ or 15″ Other options available | Composite 15″ Other options available |
| Installation & Operation Manual: | Manual PDF | ||
| Spinner/Cowl Fit Drawing: | Spinner PDF | Spinner PDF | Spinner PDF |
- Jihostroj P-920-028/A Governor – Call for quote
- Non-standard blade paint scheme with customer colors – Call for quote
- Shipping – Call
