Showing posts with label Weight and Balance. Show all posts
Showing posts with label Weight and Balance. Show all posts

Sunday, November 29, 2015

Weight And Balance Are Not Optional

Cessna 172s while having 4 seats, are really 3 seat aircraft when it comes to adults.

Overloading it, as is the case with any airplane, leads to some very bad consequences.

The Detroit News: NTSB: Plane overweight in crash that killed 4

According to the report, the Cessna 172 had a maximum gross weight of 2,457 pounds. Using weights from the medical examiner’s report, plus 10 pounds of baggage and 35 gallons of fuel, the NTSB found the plane had a gross weight of 2,550.6 pounds but would have been within center of gravity limits.

A second calculation, adding 10 percent to the body weights to account for thermal injuries and increasing the baggage weight to 15 pounds, determined a gross weight of 2,622.6 pounds, or 165 pounds overweight, with a center of gravity outside the plane’s operating limits.

Being overweight and outside the center of gravity limits is a very bad thing. Compounding the error, after realizing he was low and slow, the pilot made a left hand turn back to the airport, more than likely stalled in the turn and crashed with fatal results.

Unfortunately, the pilot did the weight and balance calculation in his head and was off by quite a bit, and not in a safe direction. A very sad and completely avoidable accident.

Wednesday, November 04, 2015

No, Weight And Balance Checks Are Not Optional

Over at Bayou Renaissance Man, you can watch a video where having an airplane being overweight on takeoff had some bad but not fatal consequences.

Now we get another reminder that weight and balance is not optional, this time fatally so.

The Detroit News: Cargo plane crashes along Nile River in South Sudan

A cargo plane that was reportedly overloaded crashed along the banks of the Nile River after taking off from the South Sudan’s capital, killing at least 25 people.

Given the plane was built in the Soviet Union in 1971 and the likely shoddy maintenance and lackadaisical compliance with checklists and regulations in that part of the world since, weight and balance probably wasn't done or was ignored with a shrug.

Denial of basic pre-flight requirements and maximum takeoff weight limits results in you crash landing on the banks of de Nile.