V speeds

June 16, 2014 - 1:30pm

The NTSB’s preliminary report into the crash of a Gulfstream IV during takeoff roll at Bedford Hanscom Field near Boston on May 31 revealed a number of inconsistencies. On June 13, investigators reported that while the flap handle on the jet was set to the “flaps 10” position, the flight data recorder indicated the flaps were set to the “flaps 20” position.

November 3, 2012 - 1:25am

The NTSB has blamed the April 2, 2011, flight-test crash of a Gulfstream G650 on an aerodynamic stall and an uncommanded rolling moment that the pilots were unable to control. However, the Board also notes that it was the manufacturer’s rush to complete its aggressive flight-test schedule for obtaining certification that set the stage for the stall and uncontrollable roll.

November 2, 2012 - 5:35am

Cessna Aircraft has released a new Citation performance calculator for the Apple iPad. With CPCalc for the iPad along with Cessna’s CLCalc loading calculator (weight-and-balance) iPad app, pilots can spend less time preparing for flights while also making sure that important preflight calculations aren’t ignored. CPCalc is available for all current-production Citations and many out-of-production models, according to Cessna.

November 2, 2012 - 5:35am

Cessna Aircraft has released a new Citation performance calculator for the Apple iPad. With CPCalc for the iPad along with Cessna’s CLCalc loading calculator (weight-and-balance) iPad app, pilots can spend less time preparing for flights while also making sure that important preflight calculations aren’t ignored. CPCalc is available for all current-production Citations and many out-of-production models, according to Cessna.

July 1, 2012 - 3:50am

Eclipse Aerospace released its Quick Reference Application (QRA) for the Apple iPad in February, and since then the adoption rate has penetrated most of the fleet of 259 operational Eclipse 500 very light jets. “More than 80 percent of the entire fleet has at least one iPad they’re using for our app,” said Eclipse Aerospace CEO Mason Holland.

November 23, 2011 - 2:47pm

The U.S. Air Force has selected the EFB-Pro performance-calculating iPhone app for pilots of its fleet of C-21A Learjet 35As. Developed by Cavu Companies, EFB-Pro has long been available as Windows PC software and now runs on Apple’s iPhone and iPad without needing an Internet connection.

January 27, 2010 - 10:51am

Jim Deuvall has written and published a handy primer on aircraft performance that can help pilots expand their understanding of how jets perform.

December 31, 2008 - 7:33am

Dassault Falcon 900, Santa Barbara, Calif., June 10, 2007–The Safety Board blamed the Falcon accident on the erroneous gross weight calculation and improper trim setting by the captain, which resulted in the airplane’s failure to rotate at Vr as expected and the captain’s decision to abort the takeoff at high speed.

May 7, 2008 - 6:14am

Mitsubishi MU-2B-26A, San Antonio, Texas, Jan. 22, 2000–The NTSB’s factual report is now out on the fatal crash of MU-2 N386TM. The twin turboprop was destroyed and both pilots were killed when it crashed immediately after takeoff from the San Antonio International Airport at 1432 CST.

September 27, 2007 - 6:58am

Airbus A300-600F, El Paso, Texas, June 10, 2002–The NTSB determined that the cause of the tail strike the FedEx Airbus suffered on takeoff from El Paso International was the flight crew’s failure to obtain Vr speed before rotation, which resulted in insufficient lift. The crew had entered the V-speeds in the flight-management system (FMS) and both crewmembers’ primary flight displays (PFDs) showed no discrepancies.

 
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