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Algebra build thread

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Peter Balcombe
Posts: 967
Joined: 18 Mar 2015, 10:13
Location: Clevedon, North Somerset, U.K.

Re: Algebra build thread

Post by Peter Balcombe »

Andy,
I use a lightweight glass cloth (25gsm?) on all of my fully sheeted builds & then spray using rattle cans.
One reason for this is the abundance of gorse etc. at Crook Peak.
I also glassed the tailplanes but put a white film covering on the rudder.
I would have thought that Oracover/ Profilm would make a good alternative as long as you remember that the wing skins will take less ‘finger pressure’ during handling.
Peter

AndyWarlow
Posts: 21
Joined: 19 Aug 2018, 11:08
Location: Reading

Re: Algebra build thread

Post by AndyWarlow »

Peter,

One final bit of information please on your Algebra. I know that control throws are are a matter of personal taste but can you advise the ones you have on the Algebra so I have something to start from, including the most important aileron, flap and elevator for crow braking.

Thanks. Andy.

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Peter Balcombe
Posts: 967
Joined: 18 Mar 2015, 10:13
Location: Clevedon, North Somerset, U.K.

Re: Algebra build thread

Post by Peter Balcombe »

Andy,
Just measured my current setup which gives the following control surface movements:

Rudder: approx. 28mm each way measured at base of rudder
Elevator: front joiner 8mm up (pitch down) & 6mm down (pitch up)
Aileron: 23mm up, 10mm down (tip end)
Flap: 0 up, 30mm down measured at root end (approx. 50 degrees)

Full Crow uses full flap, 15mm up aileron & 2mm elevator pitch down. (Not yet fully sorted)

I use coupled aileron/rudder set to 50%.

As I can set flight modes, I have launch, cruise & land modes, with crow only available in landing mode.
Hope this helps.
Peter

AndyWarlow
Posts: 21
Joined: 19 Aug 2018, 11:08
Location: Reading

Re: Algebra build thread

Post by AndyWarlow »

Peter,

Thanks for the info. I can now make sure I have allowed for this much movement before covering the ailerons and flaps.

Andy.

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