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Martyn's Mini Jazz


Martyn K
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Posted by Martyn K on 16/04/2014 08:33:45:

Thanks Ian.

Only one aileron working - wimp - two is just plain greedy, one is fine.

I am not sure what to do about surface throws though. At the moment it seems like a frightening amount (except rudder - you cant have too much rudder. I have a feeling it will be 50% expo and 40% rates.

Would appreciate some advice on this from those who have set one up before.

M

Throws?

Well since one of the primary objects of maiden flight is that it terminates in a controlled landing I wouldn't be over enthusiastic with the control throws. I would just set it up to complete the maiden and use that experience to judge what adjustments to make. 3D can come on the next flight.

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Ha ha. My worry is that it could be 3D without even trying...

Remember - I need to keep this model alive until Greenacres. I also need to maiden it - potentially a conflicting requirement.

 

BTW - I am keeping the pink spinner for a while - I have a feeling it is going to get very muddy. The CG is as per plan with the prop fitted. I am really pleased with that - no ballast needed.

 

Edited By Martyn K on 17/04/2014 14:27:30

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  • 3 weeks later...

Well .... success

After a week away and last weekends UKCAA event at Sleap, I managed to maiden my Mini_Jazz this morning. Quite a blustery morning - it actually felt a lot windier than it really was.

1st flight was distinctly under elevated, the second flight was a riot. I needed about 2mm up elevator to get it flying nicely, the model was everything I would expect from a hot aerobatic model. The SC15 was definitely not over or under powered for the model, loops rolls, knife edge - all OK.

No photos - sorry, but we are now OK for GreenAcres with this one..

Very pleased with that.

BW

Martyn

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Yes - far better than expected. I ended up using an 8x6 prop - it gave me a little extra ground clearance at the front.

It was nowhere near as twitchy as I thought it would be, I was quite surprised just how easy it was to fly. A cracking design.

Martyn

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