Re: Little Mediator designed by Bob Wallace

Paul_BB Fri Mar 18, 2016 12:11 am

coxaddict wrote:Lately I have flown 2 and 3 channel park flyers only in the early morning or late evening when there is no wind. They are brushed/NiCad powered planes that I am thinking of repowering. Are there any designs out there that can be flown in windy conditions?

Hi coxaddict, all these little models are pretty sensitive to wind conditions. My take is that the only way to deal with windy conditions is to have a hign wing loading but then the model is tricky to fly.

Paul_BB Fri Mar 18, 2016 12:19 am

I have just bought on e-bay this new TD .051 for 56.58€ (64$) a brand new TD .051 :

Little Mediator designed by Bob Wallace - Page 2 29170710

Paul_BB Fri Mar 18, 2016 2:38 am

1/2A Nut wrote:Its a built up wing, no rudder looks like a 6x3 cox prop.
Paul you can run without the muffler for a tad more power.
A Master Airscrew 5.5x4 might get it moving a bit faster
for more solid control. Can also try a high compression
head with 1 shim. What is your nitro content?.

Nitro content is 12%. I have increased the muffler exhaust diameter from 2mm to 4mm and now the power is back with the 6x3 cox prop. Very Happy

OVERLORD Fri Mar 18, 2016 5:45 am

Salut Paul,

You got a cool plane and a good flyer. I liked the video. Is the TD for the same plane?

Lieven

Paul_BB Fri Mar 18, 2016 5:58 am

OVERLORD wrote:You got a cool plane and a good flyer. I liked the video. Is the TD for the same plane?

Thank you Lieven. Very Happy

No, the TD is for a future model, maybe the P-51D from House of Balsa. I may buy a Cox .049 Venom to replace the Golden Bee on the Little Mediator.

KariFS Fri Mar 18, 2016 7:54 am

Paul, You could get a high-performance cylinder and piston plus head for that golden bee.

http://coxengines.ca/cox-.049-tee-dee-cylinder-and-piston.html

http://coxengines.ca/cox-.049-tee-dee-glow-head.html

Those are the same parts that are on the Venom, I think. Unfortunately that cylinder won't work well with a muffler.

Paul_BB Fri Mar 18, 2016 10:36 am

KariFS wrote:Paul, You could get a high-performance cylinder and piston plus head for that golden bee.

http://coxengines.ca/cox-.049-tee-dee-cylinder-and-piston.html

http://coxengines.ca/cox-.049-tee-dee-glow-head.html

Those are the same parts that are on the Venom, I think. Unfortunately that cylinder won't work well with a muffler.

Hi Karif,

I think the Golden Bee crankshaft is too weak to bear the extra power. Look at the Venom specifications:
http://coxengines.ca/cox-.049-engine-venom-ii.html

You can read that the Venom features a Killer Bee crankshaft.

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