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Have a look at these sites to get an idea of the market:
So logo must suit a card that looks like a credit card - identical size to VISA - that a corporate executive carries around in his wallet, showing that he/she has credit to charter a private jet.
Logo itself should be usable on its own. Logo appears as main feature on the front of the card.
We will consider either "JetCharge" on its own or with ".com.au" included in the logo design.
Keywords: executive, first class, global, high-flyer, five star.
Colours - your choice.
Update: Thanks for all the efforts so far... we have tried to provide as much feedback as time has allowed. A lot of great work. Still plenty of possibilities for someone to leap to the front. There are a lot of good elements - only a few have put a "concept" together that works as a concept but also looks good as a logo. Think Jet Stream, RunWays, Banking turns, High-Flying.
Before the contest finishes we are going to narrow down to three or four, then choose a winner.
It is clear there are different levels of quality and experience here - We are very happy that so many people are willing to have a go - even if you are not as good as some of the others, the experience and the challenge are very valuable.