Tuggs, PM sent regarding VGs

I was considering installing the air cylinders above the turbine, like in the picture. Any concern about possible air temperature increase during flight and consequently air pressure increase?

I think most people just install them above the fuel tank. Plenty of space there, thats where mine are.

I saw that.
But my fuel tank is not the original one. I have two dubro tanks and both together are narrow and taller than the original one. Installing the air cylinders behind will help me menage my space. I still have scale cockpit and smoke tank...

I have mine in the wings, for me the most obious place to locate them. Also the valves are there of course.

If you are using the carbon shroud I would have no concern putting the tanks there

Dave

Time to work hard....

I think we cracked the nut on this plane WRT consistent landings - CROW!

The three of us that have CARF Hawks in our group added 3/8" of crow to the ailerons with full flaps and the airplane settles very nicely now without any tendency to "hang" (stop descending when the nose is raised, even a little bit), or drop a wing. It seems to be relatively independent of the exact CG placement, which is nice, and even if the plane bounces from a rough runway, it seems to remain "stuck".

In all, it has made the landings a much less nerve-racking affair... Thanks to Smitty for clueing us into that.

Bob

Tail servos harnness

Air tanks positioned.

Fuel tanks installation and tray. I used two Dubro fuel tanks, one 60 oz and on 80oz that will give me around 4 liters of fuel.

Aditionall brackets to hold the Merlin 140.

Preparation and gluing.

Carbon shroud will be removable for eventual future access to air tanks.

Turbine final installation.
Here is a point to present a question. Merlin 140 has a shorter than usual outlet cone. In order to keep around one inch space between the end of the turbine and the funnel/pipe interface I would need to keep the turbine to much aft.
Therefore, can I leave the turbine no so aft, around two inch distance?

Turbine miscellaneous tray. Saving space in the front compartment for cockpit .

How much flap deflection do you have?

Thanks
Gary

We have the 65mm recommended in the manual.

Bob

I have 50 mm and it works fine as well

Bob Neal

I may have to try that crow. I have gotten very used to the way my Hawk lands after so many flights but it does "hang" if the nose is raised too high on landing. That is a good way to describe it. If I have too much AOA it will just level off and decelerate in level flight until a wing drops. I am very careful not to let the nose get too high. 3/8" sure sounds like a lot though! But I may creep up on it.

Maiden flight the other day for dieselman's T45 scheme Hawk - and around flight 80 or so for my 2010 DS. Gotta love the way a hawk flys!

more..
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Both look great, nice weather too :-)

Thanks for all your help Dave! It was over 100F in the shade, but yeah, nice wx for Texas in August!