Author Topic: Blown Saito!!! With Pics (Read 4218 times)

proparc · « **on:** October 10, 2008, 04:12:26 PM »

Alright guys,
All of you cats who have been complaining about not enough power. We have the solution right here. This is just the ticket for those "Lampione weight" stunters.

proparc · « **Reply #1 on:** October 10, 2008, 06:35:27 PM »

Homemade. The engine is a Saito 72. The motor has a special "popoff" valve just like the real jobs. They need to get this thing in an RC off road car ASAP!!

Bill Gruby · « **Reply #2 on:** October 10, 2008, 06:53:51 PM »

Uh Oh I should not have looked at this thread. Uh Oh

"Billy G"

Jim Oliver · « **Reply #3 on:** October 10, 2008, 07:11:06 PM »

Several years ago OS had a supercharged version of the 1.2 Surpass four stroke R/C engine. The blower was mounted on the rear of the case and was, I think, driven off the crank shaft or the crank pin.

As I recall, it was on the market for a year or two.........

Cheers,
Jim

Just One-eye · « **Reply #4 on:** October 10, 2008, 07:11:59 PM »

Quote from: Bill Gruby on October 10, 2008, 06:53:51 PM

Uh Oh I should not have looked at this thread. Uh Oh

"Billy G"

Awww! Now, you've just gotta build one of those blowers, yourownself!

Doug Moon · « **Reply #5 on:** October 10, 2008, 08:13:03 PM »

any pics of the intake side. That blower should be going into the intake side??

Randy Ryan · « **Reply #6 on:** October 10, 2008, 08:32:32 PM »

Quote from: Doug Moon on October 10, 2008, 08:13:03 PM

any pics of the intake side. That blower should be going into the intake side??

My guess is that there's a duct running from the rear at the base of the blower over to the intake port.

Greg L Bahrman · « **Reply #7 on:** October 10, 2008, 08:57:29 PM »

Proparc,
A stock Saito 72 should rip the wings right off that Kadet. I flew a Kadet for years with a OS 70FS and I never lacked for power. I built the wing straight with flaps and ailerons. I had to add a couple of hardwood dowels to the center section and then sheeted and glassed it for exrtra strength. Really funny to see a Kadet doing a Knife Edge full length of Sepulveda Basin. Loved that plane. I built floats for it and went to Havasu.

Scott Hartford · « **Reply #8 on:** October 10, 2008, 09:23:02 PM »

Hey G-man, have you started building it yet???

A perfect final touch for a big ringmaster!

Greg L Bahrman · « **Reply #9 on:** October 10, 2008, 09:44:44 PM »

I like the way you think Scott

Randy Powell · « **Reply #10 on:** October 11, 2008, 12:16:03 AM »

Looks heavy.

proparc · « **Reply #11 on:** October 11, 2008, 12:42:15 AM »

Quote from: Randy Powell on October 11, 2008, 12:16:03 AM

Looks heavy.

Randy, If I am not mistaken, you know a little something about blown Saito's yourself.

Bill Gruby · « **Reply #12 on:** October 11, 2008, 07:51:00 AM »

Quote from: Scott Hartford on October 10, 2008, 09:23:02 PM

Hey G-man, have you started building it yet??? A perfect final touch for a big ringmaster!

"Saito FA 182 TD" with twin blowers and twin carbs for each blower. Is that to your liking Scott? Somebody tell me how to get hold of the owner of the "Saito 71" please, Thank You. I already have the engine, I need the info.

"G-Man"

RC Storick · « **Reply #13 on:** October 11, 2008, 07:59:04 AM »

Not to pop anyones bubble but this looks like a neat novelty item. Knowing about engines (as this is what I do for a living) I would venture to guess that this robs more power than it produces. Unless the guy who made the blower is a EXTREMELY GREAT machinist the tolerances would be too close. Even on full size blowers the fit has to be perfect to be effective. But not many guys can say I have a blown HEMI in my airplane.

peabody · « **Reply #14 on:** October 11, 2008, 08:13:13 AM »

I outgrew my tee shirt that said "turbos are nice, but I'ld rather be blown"

Bill Gruby · « **Reply #15 on:** October 11, 2008, 08:37:58 AM »

Quote from: Robert Storick on October 11, 2008, 07:59:04 AM

Not to pop anyones bubble but this looks like a neat novelty item. Knowing about engines (as this is what I do for a living) I would venture to guess that this robs more power than it produces. Unless the guy who made the blower is a EXTREMELY GREAT machinist the tolerances would be too close. Even on full size blowers the fit has to be perfect to be effective. But not many guys can say I have a blown HEMI in my airplane.

Aw Golly Gee Wizz, Thanks Robert, and I was just gettin into the dream. Then there are those that thrive on pushing the edge a little farther out .

Again somebody get me in touch with the owner of this "Beast"

"G-Man"

PS --- Bubble not broken yet.

don Burke · « **Reply #16 on:** October 11, 2008, 10:13:37 AM »

Looks like it's mounted on a box that has an outlet on the rear to the intake valve.

As it is probably a home shop project it could be a spring loaded or centripidal force loaded "sliding vane" config. Works the same as the Roots without the fit problems. Very high friction however.

proparc · « **Reply #17 on:** October 11, 2008, 01:16:25 PM »

I think it is a great achievement from an engineering standpoint. The blower has 5 high precision ball bearings inside it. The engineering of the pop off valve mechanism alone is worth the accolades. The square block under the blower is a miniaturized manifold just like the big dogs-amazing. It starts easy, is fully throttable, is reliable. It shows an understanding of a Saito 72 that even I didn't have,( I know more about my 72 than my ST 46).

I have pictures and videos of a perfect reproduction of a 1/5 scale running Merlin V12. It has 6000 parts and took 7000 hours to complete and it runs beautifully. Certainly not for everyday use, but man, some things are just plain cool. As to the 72, - a fully blown, hemi head, nitro burning,fully throttable Saito, brother, that gets my vote.

Will Hinton · « **Reply #18 on:** October 11, 2008, 01:58:35 PM »

One of those is gonna look SO NEAT on a Ringmaster Bi-plane!!!! Keep the bubble alive!!!!!!!!!

Will

proparc · « **Reply #19 on:** October 11, 2008, 05:14:09 PM »

Bill,
If you think this is something, if you have email, I guarantee, repeat guarantee, I will send you something that will blow you away. If you do any machining, you HAVE to see this - trust me.

Bill Gruby · « **Reply #20 on:** October 11, 2008, 05:26:27 PM »

Please send anything you have. Whomever did this one knows there stuff. Take a look at this one. WOW

http://www.5bears.com/tprop.htm Look at the link to TurboProp MPEGS.

"Billy G"

proparc · « **Reply #21 on:** October 11, 2008, 06:08:59 PM »

Quote from: Bill Gruby on October 11, 2008, 05:26:27 PM

Please send anything you have. Whomever did this one knows there stuff. Take a look at this one. WOW

http://www.5bears.com/tprop.htm Look at the link to TurboProp MPEGS.

"Billy G"

Check your email. Prepare to be amazed.

Doug Moon · « **Reply #22 on:** October 11, 2008, 09:10:55 PM »

Quote from: proparc on October 11, 2008, 05:14:09 PM

Bill,
If you think this is something, if you have email, I guarantee, repeat guarantee, I will send you something that will blow you away. If you do any machining, you HAVE to see this - trust me.

Why dont you post it for all of us to see?

Bill Gruby · « **Reply #23 on:** October 12, 2008, 06:24:31 AM »

Quote from: Doug Moon on October 11, 2008, 09:10:55 PM

Why dont you post it for all of us to see?

Propare sent me 40+ pictures of a 20% Merlin under construction. Way too many to post here. He also sent a video of it running, here it is. The man who built this engine (Mr. Hares) is an extremely gifted machinist.

http://www.enginehistory.org/ModelEngines/Hares/Merlin%20XX/MerlinXX.mpg

"Billy G"

Scott Hartford · « **Reply #24 on:** October 12, 2008, 06:16:58 PM »

A Ringmaster with a Merlinperhaps???