Laser / Turbo prop build

[forgues research]

	Quote: Originally Posted by flyin4fun
	Hello Roger, I have seen threads about this mentioned, I dont mean to sound stupid, but if you would take the time from your great build and answer this for me. what are boost tabs?????? Thanks, Doug

Hi Doug,
I will try my best, but what they are is like a trim tabs but operate in opposite of the control surfave it is attached to .

with the proper size and proper setup, you can reduce the size of servo/s from this control surface by 85%....

The only problem you can't buy these, you have to build them in as you build or as an after thought, and with today's Arf, no one seems to want to build so you won't see many around ,/

By installing boost tabs, you will be able to reduce the total weight of the airplane .

Less servos, which means smaller batteries, , one servo/control surface, means no matchbox, even rudder can use only one servo with the biggest out there.

so not only will you save on the weight but will save lot of money in the process and not jeapordise the control authorithy nor the safety of the aircraft.

Here is a very good article that you should read for a more indebt information
http://www.geocities.com/roger_forgues/Boost-tabs.html


Hope this helps


Roger

[flyin4fun]

Roger,
Thanks a bunch,
Very interesting article.
I love to build from scratch too.
Keep up the threads on your super build of your turbo prop.
thanks again.
Doug

[jack01]

Dang that's a bunch of snow! If I lived up there, I'd have to make ski's for my Carden. I wonder if that's ever been done?

[3Dguy]

Fire up the turbo prop and get melting.

[forgues research]

	Quote: Originally Posted by jack strickland
	Hi roger, Boost tabs later???

Jack,
Today I made the boost tab structure but didn't cut them loose at this time , easier to sand everything together

Roger

[forgues research]

	Quote: Originally Posted by jack01
	Dang that's a bunch of snow! If I lived up there, I'd have to make ski's for my Carden. I wonder if that's ever been done?

That's if you could get to the field

Roger

[forgues research]

after sheeting the wings, locating the servo installation, I have sanded both the leading edge and trailing edge , then added the leading edge stock.

Roger

[David A]

Hi Roger.

At the rate you are going we should see it fly at the Stetson Funfly on Sept 13 and 14. Just kidding but hope you can drop by.

Dave Asquini
www.stetsonflyers.com

[forgues research]

	Quote: Originally Posted by David A
	Hi Roger. At the rate you are going we should see it fly at the Stetson Funfly on Sept 13 and 14. Just kidding but hope you can drop by. Dave Asquini www.stetsonflyers.com

Hey Dave,
Nice to see you here, I will try and be there for sure, but not with the Laser

Roger

[forgues research]

The trailing edge is glued but not shaped, while this is going on I worked on the stab , man this is not an arf, not even laser cut but the most fun I had in a long time..

Roger

[jack strickland]

	Quote: Originally Posted by forgues research
	The trailing edge is glued but not shaped, while this is going on I worked on the stab , man this is not an arf, not even laser cut but the most fun I had in a long time.. Roger

Hi Roger, Wait till you get that baby in the air! You will not find a better design for crisp aerobatics, I suspect you will build the 40% next, suspect, hardly, I'll give 10 to 1 odds you will, I know its not possible, but the 40 is a little easier to fly, prolly cause we can see it , and those reynolds numbers don't lie. Am glad you are having a lot of fun with this project, thats what this hobby is all about.
Regards
Jack

[forgues research]

Thanks Jack , yes the 40% is not far off

On another note, I just finished making a new prop for the laser engine, 24*10

Next I will grow Balsa trees

Roger

[jack01]

Roger, since that thing is a turboprop, how about making a prop that looks like this?

[forgues research]

	Quote: Originally Posted by jack01
	Roger, since that thing is a turboprop, how about making a prop that looks like this?

it will be easier to grow balsa trees in the snow country

[jack01]

	Quote: Originally Posted by forgues research
	it will be easier to grow balsa trees in the snow country

Haha. I think Santa grows some of those. He lives near you right? Snow sounds pretty good right about now though. 60% + humidity and 90-100 degree highs is getting old...

Seriously though, this is turning out to be a really neat project! That's good your friend liked the prop! Do you have any plans to produce and sell them, or is it just for fun?