Laser / Turbo prop build

[forgues research]

	Quote: Originally Posted by jack strickland
	Great job Roger, the plane looks excellent. Amazing how well the Laser tracks, isen't it? Is the 40% next after the Mentor? Congratulations on the build and the test flight. Regards Jack

Thanks Jack, and thank you for good plans on the Laser. I would love to build the 40% but will have to check on the weight because I would like to use the same Turbo prop engine for it.

The engine I'm using is practically half the weight of a 150 so by putting it forward a few inches as I have done on this one, I could keep the weight down to a minimum and remove even more weight for structure since there is absolutely no vibration.



Roger

[McFueler]

Way to go Rodger !!!!

[tonyc9075]

Roger, my 40% is 28 lbs. It uses a BME 115 which is a 4 1/2 lb motor. Love this Laser.

[forgues research]

	Quote: Originally Posted by McFueler
	Way to go Rodger !!!!

Thanks, it was a fun ride to get there.

Roger

[forgues research]

	Quote: Originally Posted by tonyc9075
	Roger, my 40% is 28 lbs. It uses a BME 115 which is a 4 1/2 lb motor. Love this Laser.

Oh my god, 28 lbs, it must be a real floater, I have to look into this

Roger

[TazmanianDevil]

Awesome building thread, congrats for the maiden flight.
Did you make a video ?

Adi

[forgues research]

	Quote: Originally Posted by TazmanianDevil
	Awesome building thread, congrats for the maiden flight. Did you make a video ? Adi

Thank you , and yes I did but its no good , will be doing another one tomorow , hopefully it will be good..

Roger

[forgues research]

	Quote: Originally Posted by tonyc9075
	Roger, my 40% is 28 lbs. It uses a BME 115 which is a 4 1/2 lb motor. Love this Laser.

It just dawned on me, with such a light engine, unless you installed the engine quite a bit further forward then the plans calls for, you would have to have added weight in the nose to balance it.

Is this the case.

With the 34% and the turbine/equipment at basically the same weight as your engine, I installed it 2" more forward then the plans called for and I still needed a bit of weight in the nose, how did you do it?

Roger

[tonyc9075]

	Quote: Originally Posted by forgues research
	It just dawned on me, with such a light engine, unless you installed the engine quite a bit further forward then the plans calls for, you would have to have added weight in the nose to balance it. Is this the case. With the 34% and the turbine/equipment at basically the same weight as your engine, I installed it 2" more forward then the plans called for and I still needed a bit of weight in the nose, how did you do it? Roger

Carbon spring tail wheel, tail wheel stearing used tubbing, no springs. Rudder servo was just behind the wing tube. From the wing tube back it was all built up with stringers, on sheeting. Tail brace was kevler strings no wire.
Roger, my motor is as per the plans, it is not moved forward. Yes it is a floater, on a windy day I can almost hang with the CUbs.

[forgues research]

	Quote: Originally Posted by tonyc9075
	Carbon spring tail wheel, tail wheel stearing used tubbing, no springs. Rudder servo was just behind the wing tube. From the wing tube back it was all built up with stringers, on sheeting. Tail brace was kevler strings no wire. Roger, my motor is as per the plans, it is not moved forward. Yes it is a floater, on a windy day I can almost hang with the CUbs.

Cool stuff,
Thanks for the information.
I am seriously thinking of putting the T 34 on the back burner and doing the 40% laser for the turbine again. I simply having too much fun with this laser now, I can imagine with the bigger one.

By the way I Laser is the best flying airplane I have had so far...

Roger

[tonyc9075]

You know Roger that building the 40% will go faster then the smaller one. You already know everything you need to do. You could be flying inside of a month.

[forgues research]

	Quote: Originally Posted by tonyc9075
	You know Roger that building the 40% will go faster then the smaller one. You already know everything you need to do. You could be flying inside of a month.

Tony, where did you get the landing gear, and the canopy

Roger

[tonyc9075]

The landing gear and canopy are replacement parts from Great Planes. I bought them from Tower Hobbies.
Landing Gear is from the 1/3 scale Cap 580, Tower part # LXJMB7 cost is $22.49
Canopy was from the Great Planes Ultimate Bipe, Tower part # LXLGN6 cost is $9.49.

You could also get the landing gear flat stock 2024 aluminum from Jack. When I ordered my plans he sent the 2024 aluminum in the same tube, gear was cut but not bent. Scott bent them up for me but my gear was lost in the mail when he sent it out. The Great Planes gear works fine, you will just need to paint it, unless you like yellow.

A note on the balance of the Laser, my motor weight of 4 ½ lbs is just the motor. I have stainless flex headers and aluminum beer can mufflers. I also have a choke servo up front as well as all my batteries. With your motor you may need some weight because you don't have the mufflers.

[forgues research]

	Quote: Originally Posted by tonyc9075
	The landing gear and canopy are replacement parts from Great Planes. I bought them from Tower Hobbies. Landing Gear is from the 1/3 scale Cap 580, Tower part # LXJMB7 cost is $22.49 Canopy was from the Great Planes Ultimate Bipe, Tower part # LXLGN6 cost is $9.49. You could also get the landing gear flat stock 2024 aluminum from Jack. When I ordered my plans he sent the 2024 aluminum in the same tube, gear was cut but not bent. Scott bent them up for me but my gear was lost in the mail when he sent it out. The Great Planes gear works fine, you will just need to paint it, unless you like yellow. A note on the balance of the Laser, my motor weight of 4 ½ lbs is just the motor. I have stainless flex headers and aluminum beer can mufflers. I also have a choke servo up front as well as all my batteries. With your motor you may need some weight because you don't have the mufflers.

Absolutely great information Tony , and I am calling Jack right now . He did send me an email with some great tips to lose some weight , and as you know there is no vibration from this motor so I can shed some pounds in the structure I'm sure.

Now since I have done a build thread on the 34% Turbo laser, some might repeats here for the 40%, is there enough interest to do a build thread on the 40%, I don't want to bore anyone ...

Roger

[tonyc9075]

Roger, you are never a bore. Do the build thread.