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Written by Jack Willis on 9th November 2016

A ‘Humpty Bump’ is an aerobatic figure that comprises of two straight lines joined by a looping element. The lines can be either vertical or 45° lines and can start going up or down. Depending on the aerobatic level, there are often plenty of embellishments ensuring the K factor is high. Many Humpty Bumps will have a combination of slow and flick rolls on the up, down or 45° lines.  You may also get a double version of the vertical Humpty Bump with the up version followed by a down version or vice versa. From this you can see that it is essential to be able to fly a high scoring vanilla “humpty”.

 

Judging Criteria

humpy-bump

Source: http://www.fai.org/aerobatics

 

How to Fly A Humpty Bump – VerticalHumpty Bump

In this example, I will describe how to fly a basic Humpy Bump (category number 8.4.1.1). The key point here is the ‘pop’, ‘float’, ‘pull’ at the top in order to achieve a tight radius at the top and to start the down line at the same height as you finished the up line. I assume that height and speed is sufficient before you begin and HASELL checks have been completed.


Aircraft Wing Sight - Vertical Up

Aircraft Wing Sight - Vertically Down

 

 

Common Mistakes

 

 

How to Fly a Humpty Bump – 45° (Diagonal Humpty Bump)

In this example I will describe how to fly a 45° Humpty Bump (category number 8.4.15.1). I have added a half roll on the 45° up line (category number 9.1.2.2) to make the majority of the figure positive G and therefore easier.  The key point here is to pull gently at the beginning and then to float (like at the top of a loop), to make sure you fly a constant radius.Diagonal Humpty Bump

 

 

Common Mistakes

 

The judging criteria has been taken from CIVA Section 6 part 1 PDF from the CIVA website.

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