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Bits & Pieces eNewsletter
May 2013: Vol. 6, No. 5 Newsletters : : EAA Forums : : Past Issues : : Contact EAA Facebook EAA Twitter
From the Editor
Ian Brown'Sam' 'n Fun-New Canadian AULA Now Flying
By Ian Brown, Editor - Bits and Pieces, EAA 657159

You couldn't miss the Canadian-built and designed SAM-LS at Sun 'n Fun International Fly-In & Expo last month. Named after the founder's son, the SAM is approved in Canada in the advanced ultralight class and is being marketed as a kit or completely built. Transport Canada has approved it, but it can take up to a month for it to appear on the list. Its distinctive styling had onlookers stopping and taking lots of pictures. Read more >>
Aviation Highlights
Inspection Equipment Aircraft Inspection Techniques - Part 4
By Bill Evans, President - EAA Chapter 266, EAA 794228

Theory to Application - This part makes the move from inspection theory to practice: what to buy and what to do.

You do not need to buy a great deal of equipment to inspect your aircraft well, nor does the equipment need to be expensive. However some purchases are necessary. Don't buy excessively at first. You can always add an item if you see that you need it. Read more >>

Lancaster VRA Lanc Appeal - Engine Overhaul Needed
By Ian Brown, Editor - Bits and Pieces, EAA 657159

Canadian aviators can be proud that we have the only flying Lancaster bomber in the Americas. The only other flying example is in the UK operated by the Battle of Britain Memorial Flight. The Mynarski Memorial Lancaster, KB726 VRA, was built in Malton, Ontario, and boasts four Packard Merlin 224 engines. Read more >>
Electronics Corner
ForeFlight Electronics Corner - ForeFlight User Report
By Nora Hague, Chapter 266, EAA 1023702

While planning for attending the 2012 Sun 'n Fun International Fly-In & Expo at Lakeland, Florida, the question of obtaining U. S. aviation maps and directories inevitably came up. Buy paper (again), or should we go digital with a tablet and the ForeFlight app? Read more >>
Builders Tip
Reducing a Dent
By Ian Brown, Editor - Bits and Pieces, EAA 657159

Dents in aircraft skins won't necessarily prevent you from flying, but they do look ugly. Gus Funnel of Van's Aircraft says one way to at least get them to look a bit better is to reinforce them from behind. We all know that once stretched, aluminium skins will not "unstretch," but given the expense and work involved to replace a whole skin for the sake of a dent, this tip seems to have some merit. Read more >>
Aviation Words
Buttock Line
By Ian Brown, Editor - Bits and Pieces, EAA 657159

Well "buttock" is a word you wouldn't normally associate with flying, unless it's been a few hours and you're feeling in need of a stretch.

As a hint, you are more likely to have come across the term buttock line (BL) if you designed your own aircraft than if you built a kit. The Buttock Line is the longitudinal axis of the aircraft that serves as the reference location for positions to the left and right of centre. The positions are usually dimensioned in inches in North America. It is the centre line of an aircraft structure, and positions to either side are known as so many inches LBL (left of buttock line), for example. Sometimes it is shortened to butt line.

Buttock line is an aircraft lofting term. Now that's another word, borrowed from shipbuilding. Lofting basically means laying out the design using full-size drawings. In shipbuilding, the loft in a large factory building was used because of the expanse of space needed, hence the term. The term was borrowed for aviation at the turn of the last century.

So the buttock line has nothing at all to do with tight undergarments!


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