BH 50% Yak 55 build thread! - Page 6

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Mike Busutil · 10-15-2008, 12:22 PM

Here is a few pics of the extensions being made.

T. Bob · 10-15-2008, 01:07 PM

	Quote:
	Side area in the aft region of the fuselage opposes good knife edge qualities. (It tends to fight the rudder and cause the plane to weathervane or align with the flight path) This plane has the deepest side area at the wing... where it is most effective without being destabilizing in yaw.

What a freakin smart ass!!!

Hey Mithrandir

If I wanted to talk to smart people, I wouldn't be on this site.

Mithrandir · 10-15-2008, 01:49 PM

	Quote: Originally Posted by T. Bob
	...........What a freakin smart ass!!!....................

Yeah.. I know.. a genetic defect....

But I get handicapped parking!!!

Galaxy 3D · 10-15-2008, 04:42 PM

I am thinking of purchasing this plane and mounting a Moki 400 radial engine. I am just concerned about the strength of the fire wall and fuse. The 400 puts out allot of torque. With the engine weighing 20lbs I will probably have to shorten the nose a little to get the CG right. Here is a link to a Moki on a Gee Bee R3

YouTube - Gee Bee R3 Moki 400 Engine check big...

and this one

YouTube - Gee Bee R3 Moki 400 big radial engine...

.

Bill,
Do you think the airplane will hold up with this engine?

Thanks,
Tony

3Dguy · 10-15-2008, 05:04 PM

Holy crap. That big radial makes a fantastic sound. I didn't know Moki made 'em.

ferocious frankie · 10-15-2008, 06:33 PM

That thing sounds and looks awesome!

flynbye · 10-15-2008, 08:15 PM

that does sound bad ass

T. Bob · 10-15-2008, 09:37 PM

Yea

What he said!

Mike Busutil · 10-15-2008, 11:39 PM

Aileron servos and elevator servos were installed today on the Yak...........
Pictures will get posted soon.

Mike Busutil · 10-16-2008, 12:17 AM

Bill,
Do you think the airplane will hold up with this engine?

Thanks,
Tony[/quote]

I say yes it will.

Moki specs:

R 400 5 cyl. Radial
Capacity:400cc
Power:23HP
Weight (g):9500
Weight (ozs):332
Rec Propeller:2 BIade. 39x22
Exhaust: Collector Ring

Price: Around $4700- $6350

Kaveman · 10-16-2008, 12:52 AM

looking good so what size servo wires are you using (gauge) and where did you get it thanks

Mike Busutil · 10-16-2008, 04:07 PM

	Quote: Originally Posted by Kaveman
	looking good so what size servo wires are you using (gauge) and where did you get it thanks

We are using 22 AWG twisted Heavy duty servos extensions with Gold contacts and JR ends.
They came from Airwild.

Mike Busutil · 10-16-2008, 04:18 PM

Here we are getting the EQ-10 and Turbo Reg in place, we had to add the servo wire guide tubes

since the Yak did not have them. Once the Wires were ran through the tail and wings we

installed the JR 8711 servos and placed all the servo leads at the Power supply.

After all that work we ran a heat gun over the covering to finish out the day.

Mithrandir · 10-16-2008, 04:23 PM

Though it is a lot of torque, because it is a radial with more then two cylinders...tere are more power pulses and each power pulse is smaller (Then a two cylinder opposed configuration of the same average torque and HP)... so the shock of the engine is actually less.. the "Peak Shocks" that is...

and you can think of the firewall as not attaching the engine to the airframe, but attaching the airframe to the engine....
So as long as the airplane weight is not hugely different, and the prop is not a lot bigger and not a lot more weight, and the RPM's are not a lot higher, (All these items increase the gyroscopic loads on the firewall which are likely the highest loads other then engine vibration)... the extra few pounds of engine weight are likely not an issue.....

oh.. sorry...

nevermind..

you asked Bill....

My Bad

	Quote: Originally Posted by Galaxy 3D
	I am thinking of purchasing this plane and mounting a Moki 400 radial engine. I am just concerned about the strength of the fire wall and fuse. The 400 puts out allot of torque. With the engine weighing 20lbs I will probably have to shorten the nose a little to get the CG right. Here is a link to a Moki on a Gee Bee R3 YouTube - Gee Bee R3 Moki 400 Engine check big radial engine and this one YouTube - Gee Bee R3 Moki 400 big radial engine Airworld . Bill, Do you think the airplane will hold up with this engine? Thanks, Tony

3Dguy · 10-16-2008, 04:45 PM

Freakin smart people.

10-15-2008, 12:22 PM	#76
Mike Busutil Mind your business.... Join Date: Mar 2008 Location: Yuma Arizona Age: 29 Posts: 2,310 Awards Showcase Total Awards: 1	Re: BH 50% Yak 55 build thread! Here is a few pics of the extensions being made. Attached Thumbnails 204.1 KB · Views: 108 209.0 KB · Views: 134 206.5 KB · Views: 108 196.4 KB · Views: 158 215.9 KB · Views: 91 __________________ 50% Hempel Edge 540 3W 275 50% Hempel Yak 55 3W 275 50% Hempel Version II Edge 540 3W 275 50% Hempel Yak 55 3W 275 100cc Hempel Yak 55 3W 106 50cc Hempel Yak 55 D.A 50 50cc Hempel Yak 55 40% Hempel Cub

10-15-2008, 05:04 PM	#80
3Dguy Whatchu lookin at?! Join Date: Jan 2008 Location: Antioch, Tennessee, USA Age: 20 Posts: 14,171	Re: BH 50% Yak 55 build thread! Holy crap. That big radial makes a fantastic sound. I didn't know Moki made 'em. __________________ *-Anderson "Sweatshop"*

10-15-2008, 06:33 PM	#81
ferocious frankie Huck Yeah!!! Join Date: Mar 2006 Location: California Posts: 1,624	Re: BH 50% Yak 55 build thread! That thing sounds and looks awesome! __________________ Plane: AW 50cc Extra 300 Radio: Futaba 12FG 2.4 GHz

10-15-2008, 08:15 PM	#82
flynbye Bad-ass Super Contributer! Join Date: Feb 2008 Location: willoughby ohio Age: 30 Posts: 279	Re: BH 50% Yak 55 build thread! that does sound bad ass __________________ Energy and persistence conquer all things. Benjamin Franklin These Colors Don't Run

10-15-2008, 09:37 PM	#83
T. Bob Major League Deadbeat Join Date: Jan 2006 Location: Munster Indiana Posts: 2,223 Awards Showcase Total Awards: 2	Re: BH 50% Yak 55 build thread! Yea What he said! __________________ Guys beware of wgeffon... A very unreasonable person and untrustworthy, becareful of any transaction made with him you will regret it..........

10-15-2008, 11:39 PM	#84
Mike Busutil Mind your business.... Join Date: Mar 2008 Location: Yuma Arizona Age: 29 Posts: 2,310 Awards Showcase Total Awards: 1	Re: BH 50% Yak 55 build thread! Aileron servos and elevator servos were installed today on the Yak........... Pictures will get posted soon. __________________ 50% Hempel Edge 540 3W 275 50% Hempel Yak 55 3W 275 50% Hempel Version II Edge 540 3W 275 50% Hempel Yak 55 3W 275 100cc Hempel Yak 55 3W 106 50cc Hempel Yak 55 D.A 50 50cc Hempel Yak 55 40% Hempel Cub

10-16-2008, 12:17 AM	#85
Mike Busutil Mind your business.... Join Date: Mar 2008 Location: Yuma Arizona Age: 29 Posts: 2,310 Awards Showcase Total Awards: 1	Re: BH 50% Yak 55 build thread! Bill, Do you think the airplane will hold up with this engine? Thanks, Tony[/quote] I say yes it will. Moki specs: R 400 5 cyl. Radial Capacity:400cc Power:23HP Weight (g):9500 Weight (ozs):332 Rec Propeller:2 BIade. 39x22 Exhaust: Collector Ring Price: Around $4700- $6350 __________________ 50% Hempel Edge 540 3W 275 50% Hempel Yak 55 3W 275 50% Hempel Version II Edge 540 3W 275 50% Hempel Yak 55 3W 275 100cc Hempel Yak 55 3W 106 50cc Hempel Yak 55 D.A 50 50cc Hempel Yak 55 40% Hempel Cub Last edited by Mike Busutil; 10-16-2008 at 12:37 AM.

10-16-2008, 12:52 AM	#86
Kaveman Bad-ass Super Contributer! Join Date: Jul 2007 Location: ont,ca,usa Posts: 203	Re: BH 50% Yak 55 build thread! looking good so what size servo wires are you using (gauge) and where did you get it thanks

10-16-2008, 04:18 PM	#88
Mike Busutil Mind your business.... Join Date: Mar 2008 Location: Yuma Arizona Age: 29 Posts: 2,310 Awards Showcase Total Awards: 1	Re: BH 50% Yak 55 build thread! Here we are getting the EQ-10 and Turbo Reg in place, we had to add the servo wire guide tubes since the Yak did not have them. Once the Wires were ran through the tail and wings we installed the JR 8711 servos and placed all the servo leads at the Power supply. After all that work we ran a heat gun over the covering to finish out the day. Attached Thumbnails 204.3 KB · Views: 147 174.1 KB · Views: 87 178.5 KB · Views: 63 115.8 KB · Views: 89 167.2 KB · Views: 46 246.2 KB · Views: 123 118.4 KB · Views: 45 239.7 KB · Views: 82 142.0 KB · Views: 87 __________________ 50% Hempel Edge 540 3W 275 50% Hempel Yak 55 3W 275 50% Hempel Version II Edge 540 3W 275 50% Hempel Yak 55 3W 275 100cc Hempel Yak 55 3W 106 50cc Hempel Yak 55 D.A 50 50cc Hempel Yak 55 40% Hempel Cub

10-16-2008, 04:45 PM	#90
3Dguy Whatchu lookin at?! Join Date: Jan 2008 Location: Antioch, Tennessee, USA Age: 20 Posts: 14,171	Re: BH 50% Yak 55 build thread! Freakin smart people. __________________ *-Anderson "Sweatshop"*

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