Laser / Turbo prop build

[forgues research]

I couldn't find the picture of the engine box so I made a cad 3 d drawing

Hope this helps

Roger

[Rod]

Thanks Roger, forgot you had the built up wing. Your pushrods look nice and simple, lets see the aileron control horns and their mounting system.

[forgues research]

I use a 8*32 threaded rod for the main control linkage screwed into the hardwood insert in the wing.

I do the same for the boost tab but use 4*40 .

Here I have pictures of the control installed on one wing and the servo with the close proximity fiber optic decoder.

Roger

[66stang]

Roger, nice work on the build. True craftsman at work. Really appreciate you sharing your skills with us.

[forgues research]

	Quote: Originally Posted by 66stang
	Roger, nice work on the build. True craftsman at work. Really appreciate you sharing your skills with us.

Thank you for the kind words

Roger

[jack strickland]

	Quote: Originally Posted by zoomer260
	Hey Roger, loving the "build". I have an old 30% Laser in the basement that has never flown due to a new wing needed. Please don't ask because then I would have to tell ya I ran over them with my truck. Anyway I've asked this of you before and I may have missed the answer. Doesn't counter balanced control surfaces work in much the same way as a boost tab ? It is on the other side of the hinge line and the airstream is pushing on it assisting the servo in much the same way ? Or am I too far gone to understand ? I guess my question really is why do boost tabs work so much better ?

Hello Zoomer, Just wanted to explain my experence with a rudder boost tab on my 40% Laser. This was my 1st try at a boost tab. Before the tab my rudder wea blown almost to a no deflection at wot. I was using 2 servos on the rudder with a total of 270 inch ounces of torque. The picture of the boost tab is enclosed. Now the plane will do a knife edge loop! I know this is not a IMAC manuever, it just points out the effect of the boost tab. I would be very caucious about balancing any control surface, as I have had a flutter on ailerons doing this. Just my experence with balancing. The tab on the rudder is about 10%, and it does a great job on the rudder.

[jack strickland]

sorry--no picture will try again

[jack strickland]

	Quote: Originally Posted by zoomer260
	Hey Roger, loving the "build". I have an old 30% Laser in the basement that has never flown due to a new wing needed. Please don't ask because then I would have to tell ya I ran over them with my truck. Anyway I've asked this of you before and I may have missed the answer. Doesn't counter balanced control surfaces work in much the same way as a boost tab ? It is on the other side of the hinge line and the airstream is pushing on it assisting the servo in much the same way ? Or am I too far gone to understand ? I guess my question really is why do boost tabs work so much better ?

Hi Zoomer hope this works

[jack strickland]

Sorry again this was my 1st try and the tab was too small-0- will try again

[forgues research]

	Quote: Originally Posted by jack strickland
	Sorry again this was my 1st try and the tab was too small-0- will try again

Hey Jack, nice to hear from you again, I was wondering where you had gone

Roger

[jack strickland]

Hi Roger was on vacation -of sorts- now I dont know what happened to the correct pictures i sent to Zoomer Later
Jack

[jack strickland]

	Quote: Originally Posted by zoomer260
	Hey Roger, loving the "build". I have an old 30% Laser in the basement that has never flown due to a new wing needed. Please don't ask because then I would have to tell ya I ran over them with my truck. Anyway I've asked this of you before and I may have missed the answer. Doesn't counter balanced control surfaces work in much the same way as a boost tab ? It is on the other side of the hinge line and the airstream is pushing on it assisting the servo in much the same way ? Or am I too far gone to understand ? I guess my question really is why do boost tabs work so much better ?

Hi Zoomer will try this picture thing again