# NTSB WPR25LA222: Rotorsport UK Rotorsport UK Cavalon, N630JM, Hurricane, UT, July 14, 2025 - Type: NTSB accident investigation - Classification: Accident · Minor injuries · Class 4 · Limited · Final report - Date: July 14, 2025, 10:15 local (16:15 UTC) - Place: Hurricane, UT · airport/runway - Coordinates: 37.140215, -113.30608 - Nearby events: https://openairdocs.org/map.md?lat=37.1402&lon=-113.3061&mi=10 - Phase of flight: [Takeoff](https://openairdocs.org/ntsb-phases/300) (OpenAirDocs' grouping) - Defining event: [Takeoff: Loss of control on ground](https://openairdocs.org/ntsb-events/230) - Highest injury: Minor injuries - Injuries: 1 minor - Status: Completed, report May 14, 2026 - Report: Approved by Office Director - Investigation class: Class 4 - Basic report with no Prelim publish - NTSB office: Western Pacific Region - Parties: Federal Aviation Administration - NTSB case key (mKey): 200631 - NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=WPR25LA222 - NTSB report (PDF, downloads): https://data.ntsb.gov/carol-repgen/api/Aviation/ReportMain/GenerateNewestReport/200631/pdf - NTSB docket: https://data.ntsb.gov/Docket?ProjectID=200631 - Page: https://openairdocs.org/ntsb/WPR25LA222 ## Probable cause The pilot’s failure to maintain pitch control during takeoff, which resulted in an unintended liftoff from the runway and a subsequent loss of control. ## Findings NTSB's coded findings; those marked are part of the probable cause. - [Performance/control parameters: pitch control](https://openairdocs.org/ntsb-findings/01062022): Aircraft › Aircraft oper/perf/capability · Not attained/maintained (probable cause); cases with it: [Rotorsport UK ROTORSPORT UK CAVALO, 1 case](https://openairdocs.org/ntsb-findings/01062022/cases.md?model=05636HX), [All aircraft, 526 cases](https://openairdocs.org/ntsb-findings/01062022/cases.md) - [Use of equip/info: aircraft control](https://openairdocs.org/ntsb-findings/02063040): Personnel issues › Task performance · Pilot (probable cause); cases with it: [Rotorsport UK ROTORSPORT UK CAVALO, 1 case](https://openairdocs.org/ntsb-findings/02063040/cases.md?model=05636HX), [All aircraft, 9,295 cases](https://openairdocs.org/ntsb-findings/02063040/cases.md) ## Sequence of events The events NTSB coded, in order, by phase of flight. The defining event best describes what happened. - [Takeoff: Loss of control on ground](https://openairdocs.org/ntsb-events/230) (defining event); cases with it: [Rotorsport UK ROTORSPORT UK CAVALO, 2 cases](https://openairdocs.org/ntsb-events/230/sequence.md?model=05636HX), [All aircraft, 4,585 cases](https://openairdocs.org/ntsb-events/230/sequence.md) - [Takeoff: Attempted remediation/recovery](https://openairdocs.org/ntsb-events/060); cases with it: [Rotorsport UK ROTORSPORT UK CAVALO, 1 case](https://openairdocs.org/ntsb-events/060/sequence.md?model=05636HX), [All aircraft, 1,422 cases](https://openairdocs.org/ntsb-events/060/sequence.md) - [Takeoff: Roll over](https://openairdocs.org/ntsb-events/097); cases with it: [Rotorsport UK ROTORSPORT UK CAVALO, 1 case](https://openairdocs.org/ntsb-events/097/sequence.md?model=05636HX), [All aircraft, 261 cases](https://openairdocs.org/ntsb-events/097/sequence.md) ## Analysis The student pilot reported that during the takeoff ground roll on the runway, about 35 knots, the pilot moved the control stick slightly forward from the aft position and allowed the nose wheel to rise slightly above the surface, while he increased the throttle setting to 75%. As the gyroplane reached about 70 knots, it started to veer to the left and shudder, so the pilot slightly decreased the throttle setting. As the pilot approached the end of the runway, the pilot increased the throttle setting and maintained the control stick position. Subsequently, the gyroplane pitched up and rolled onto its right side. The gyroplane impacted the ground and slid to a stop on its right side within the runway safety area. The gyroplane sustained substantial damage to the drivetrain. The pilot reported that there were no preaccident mechanical failures or malfunctions with the gyroplane that would have precluded normal operation. The pilot added that during the takeoff, he should have held the aft position of the control stick to maintain the rotor RPM or aborted the takeoff earlier. ## Aircraft - Registration: [N630JM](https://openairdocs.org/aircraft/N630JM), registered now, S/N RSUK-V00453 (OpenAirDocs) - Reported make and model: ROTORSPORT UK LTD ROTORSPORT UK CAVALON - Registry model: [Rotorsport UK ROTORSPORT UK CAVALO](https://openairdocs.org/model/rotorsport-uk-rotorsport-uk-cavalo) (registry code 05636HX) (OpenAirDocs) - Category: Gyroplane - Serial number: RSUK-V00453 - Year built: 2020 - Airframe hours: 293.28 - Engines: ROTAX MML-915 iSA 141 horsepower reciprocating - Damage: Substantial damage - Flight: Personal, Part 91 - Registered owner: Cedar Creek Aviation LLC - Airworthiness certificate: Special, Experimental (Special) - Last inspection: Annual, July 11, 2025, 4.5 hours before - Destination: Same as departure - Airport: 1L8, General Dick Stout Fld, runway 19, 3,282 × 60 ft, asphalt - Equipment: Electronic primary flight display, Electronic multifunction display, ADS-B, Onboard weather ## Flight crew As NTSB recorded them. NTSB leaves out names. - Pilot; age 75; injuries: minor; student; medical: sport pilot, without waivers/limitations; last flight review July 12, 2025; seat: right; restraint: 3-point; flight hours: 295.13 total, 262.43 in this make and model, 295.13 as pilot in command, 6.08 in the last 90 days, 6.08 in the last 30 days ## Weather - Conditions: Visual (VMC), Day - Wind: 270° at 10 knots, gusting 15 - Visibility: 10 statute miles - Lowest ceiling: none - Temperature: 97 °F, dew point 32 °F - Altimeter: 30.17 inHg - Observed at: KAZC, 18 nm away - METAR: KAZC 141735Z AUTO 27010G15KT 10SM CLR 36/00 A3017 RMK AO2 ## FAA reports on this event (1) The FAA's own accident and incident reports, matched to the aircraft by N-number and date (OpenAirDocs). - [Accident 20250714015709A](https://openairdocs.org/incident/20250714015709A), Jul 14, 2025: Rotorsport Uk Ltd ROTORSPORT UK CAVALO, Hurricane, UT, Substantial damage. The student pilot was performing a solo flight in a gyrocopter. During takeoff rotation rotor speed was low and pilot increased throttle and pitched the… ## Docket (3 files) The files NTSB released with the investigation on May 14, 2026, on NTSB's docket system: https://data.ntsb.gov/Docket?ProjectID=200631. 4.2 MB in all. - Pilot/operator aircraft accident report, NTSB form 6120.1 (item 1, PDF, 10 pages, 3.8 MB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=20255068&FileExtension=pdf&FileName=6120%20222_Redacted-Rel.pdf - Pilot statement (item 2, PDF, 5 pages, 126 KB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=20254768&FileExtension=pdf&FileName=MOR%20-%20Pilot%20Statement-Rel.pdf - Accident photo (item 3, PDF, 2 pages, 310 KB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=20254843&FileExtension=pdf&FileName=68237-Rel.pdf From the NTSB's public API. Aircraft are matched to registry aircraft by N-number and event date, checked against the reported serial number, make and model; the registry's history has gaps, so older matches can be wrong. Compare the reported make and model. --- OpenAirDocs.org is an independent research project of [Contrail Labs](https://contraillabs.com/). It is not affiliated with the FAA or the NTSB. Source documents are U.S. government works in the public domain.