Runway: Dry, Paved, Level Dry Grass: Add 20% to
Ground Roll. Wet Grass: Add 30% to
Ground Roll.
Some owners we surveyed made the switch from oiled Brackett foam filters to the dry Donaldson filter because of perceived performance loss (including increased takeoff
ground roll) and reported slight increases in manifold pressure, takeoff power and climb rates while at wide-open throttle.
This study presents a wavelet-transform-based method and wavelet domain ground roll analysis (WDGA) technique for seismic ground roll reduction.
This paper was aimed at attenuating ground roll using the DDDTDWT method on post-stack (residual noise) and pre-stack data.
All over the country peasants working in the fields told how they had heard a loud rumbling noise moving from west to east and had seen the
ground roll in three or four successive waves.
During the
ground roll, the airplane collided with a restroom facility on the park property.
The Sacchi's algorithm (2002) based on the Karhunen-Loeve (K-L) Transform was modified and implemented to suppress
Ground Roll without distortion of the reflection signals, it provided better results than conventional techniques for noise removal like f-k, High-Pass and Band Pass Filters.
As trialed on a Wipline 3450-equipped T206H, the Trailblazer provides an 8% reduction in
ground roll and water run as against a metal floatplane propeller.
The airplane lifted off after a
ground roll of about 800 feet.
Key Words:
Ground roll, wave equation, finite differences, modeling, filters.
High powered ceramic electrodes and reliable power supplies provide efficient and reliable treatment for both conductive and nonconductive films without the need to change electrodes or
ground rolls.
* Stainless finned electrodes, used with covered
ground rolls for hard-to-treat, non-conductive materials with a fixed treating width.
