page title:    Hammerhead, Renversement
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page created 30.06.2002 - 11:16, last modified 27.09.2002 - 12:15 by

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Hammerhead, Renversement     eine Kunstflugfigur

   -   the hammerhead
   -   hammerhead key list
   the hammerhead
  

During the hammerhead the aircraft is pulled up into a vertical climb and established in straightline flight along the vertical upline. It is allowed to fly along the up line until the instant before it runs out of airspeed (kinetic energy) and almost becomes stationary. It is the pivoted 180° around its vertical axis and established in straightline flight along the vertical down line parallel and opposite to the upline. It is allowed to gain speed along the downline and is then pulled out into straight and level flight opposite to the entry direction, to exit the maneuver.

 

During the hammerhead, the aircraft approaches the extremes of the performance envelope in terms of load and airspeed. It is an important competition maneuver. In competition, the length of the upline and downline do not have to be equal (respective length will depend on the preceding and following maneuvers), though they both have to be clearly established.

 

Typical minimum entry speeds

Aerobatic trainer:

160 mph

Intermediate aircraft:  

180 mph

Unlimited monoplane:

190 mph

 

By the way: you will find a hammerhead-movie on the page Bücker aerobatics.

 
last modified 27.09.2002 - 12:15 by ,
article created 30.06.2002 - 11:24


   hammerhead key list
   remember this few items while flying the maneuver  
   for a left hammerhead  
  

Establish entry speed; over the road; pull!

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Look left; vertical, neutral stick

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(Aircraft buffets) Left rudder, right aileron, slight forward stick in sequence

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(Nose goes through horizon) Glance left, note spot, look ahead

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45°, full right rudder, neutral controls

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Straight down ... wait ... pull!

 
last modified 27.09.2002 - 12:15 by ,
article created 30.06.2002 - 11:33





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source
most information in this chapter "hammerhead" are based on the book "basic aerobatics", 1994 by Geza Szurovy and Mike Goulian.

more information about the hammerhead
use the links below to access more information about the figure hammerhead inside flight-info.ch

hammerhead information
 -  understanding it
 -  flying it
 -  common errors



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