RE: New Giant GP Super Sportster!!!!!

RE: New Giant GP Super Sportster!!!!!
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RE: New Giant GP Super Sportster!!!!! - 12/11/2007 12:26:56 AM

ckangaroo70

Posts: 2076
Joined: 10/3/2003
From: London Mills, IL, USA
Status: offline

quote:

ORIGINAL: foresterxt

What's the largest prop you can run in the Giant SS and still have ground clearance? I'm getting ready to put the ARF together with a CRCpro 45 V3 and was planning on running a 20x10.

Thanks, Dave

Dave

You will probally be OK with a 20" prop. In my photo above I have my prop turned down in that photo, and that is an 18x8 apc prop with good clearence. You might chop a bit of grass with a 20', but you should have around 3" of clearence or so. You could also go with a little taller wheels if you needed to.

_____________________________

Visit Mikes Ultra Sport info page! http://www.tesla-2.dyndns.org/~mhammer/us60

(in reply to foresterxt)

Post #: 301

RE: New Giant GP Super Sportster!!!!! - 12/11/2007 12:39:12 AM

Stickbuilder

Posts: 5225
Joined: 11/20/2005
From: leesburg, FL, USA
Status: offline

I thought you'd died or something, I see you are still alive.

Bill, AMA 4720
WACO Brotherhood #1

ps. don't worry about cutting those formers. I have already done it.

_____________________________

It's easy, just glue all the pieces together, and sand off everything that doesn't look like an airplane.

(in reply to ckangaroo70)

Post #: 302

RE: New Giant GP Super Sportster!!!!! - 12/11/2007 1:13:50 AM

rceric

Posts: 84
Joined: 11/23/2007
From: , MD, USA
Status: offline

So after months of reading this thread I still am at a loss about which power plant to go with. I got my SS and I am ready to start building. Do I go Fuji? Zenoah? or the OS glow fuel?? I did decide that I would try gas (first time) but there are so many pros and cons to the different engines...

What to do??

And I know the answers won't help any because there are so many differing opinions.

(in reply to ckangaroo70)

Post #: 303

RE: New Giant GP Super Sportster!!!!! - 12/11/2007 2:09:42 AM

krproton

Posts: 500
Joined: 8/5/2007
From: Champaign, IL, USA
Status: offline

quote:

ORIGINAL: rceric

So after months of reading this thread I still am at a loss about which power plant to go with. I got my SS and I am ready to start building. Do I go Fuji? Zenoah? or the OS glow fuel?? I did decide that I would try gas (first time) but there are so many pros and cons to the different engines...

What to do??

And I know the answers won't help any because there are so many differing opinions.

rceric,

I was going to give you the link to a post I wrote earlier in this thread regarding my opinion on gas engines. When I searched back to find that post, I see it was in response to you!

Well, here's the link anyway. You might want to go back and read it again just for the heck of it.

http://www.rcuniverse.com/forum/fb.asp?m=6695909

I'm not trying to convince you to go with gas, I just wanted to give you my personal opinion. I will say that the giant Sportster was a tad "peppier" with the O.S. 1.60 than it was with the Fuji 32 (of course, there are other gas and glow engines other than Fuji and O.S.). The plane will be lighter and I think the 1.60 puts out a bit more power than that Fuji 32. But, with a plane like this giant Sportster, I doubt you are looking for the most speed or power you can get--a model like this is more of a Sunday flier for your run-of-the-mill, standard-issue aerobatics. In that case, the "cleanliness," economy (regarding fuel cost and fuel consumption) and overall user-friendliness of any gas engine can't be beat.

Well, keep thinking about it, take all the time you need and consider other opinions too!

Tim

_____________________________

Tim Lampe
Hobbico R&D

(in reply to rceric)

Post #: 304

RE: New Giant GP Super Sportster!!!!! - 12/11/2007 2:15:26 AM

rceric

Posts: 84
Joined: 11/23/2007
From: , MD, USA
Status: offline

Thanks again Tim!

I keep re-reading your original reply to me. I am pretty sure I want to go gas because I am tired of cleaning glow exhaust off my planes and also the cost of fuel.. (Unless some people really come out and tell me the OS 160 is so much better for this plane). So then the question is which gas engine?

Eric

(in reply to krproton)

Post #: 305

RE: New Giant GP Super Sportster!!!!! - 12/11/2007 2:15:51 AM

SBrian

Posts: 65
Joined: 4/14/2006
From: Bedford, NH, USA
Status: offline

rceric, I'm in the same boat you're in, which one do I choose now that the Big Box is here? Gas is a no brainier for this plane. I looked at all the postings and a month later I got to the end. Although none of the pilots in this thread have selected these two motor, the ZDZ 40R and the Evolution 35 GT I'm going forward with the Evolution on the account of weight and HP. The ZDZ is overkill but a real nice motor. I read that many of the guys had to use lead in the tail for balance. The thought of this make me cringe, so I'm counting on a motor weighing in around 50 oz. see specs below. Good luck

Fuji
Shaft: Threaded
- Low RPM: 1200
- High RPM: 11000
- HP: 2.200 bhp@10000 RPM
- Weight: 63.49 oz.

Evolution 35GT
Bore: 1.398 (in.)
- Stroke: 1.386 (in.)
- Shaft: M 10x1mm
- Low RPM: 1400
- High RPM: 9000
- HP: 4.100 bhp@8500 RPM
- Weight: 52.66 oz.

(in reply to rceric)

Post #: 306

RE: New Giant GP Super Sportster!!!!! - 12/11/2007 2:42:56 AM

SBrian

Posts: 65
Joined: 4/14/2006
From: Bedford, NH, USA
Status: offline

Did you need to add weight to the nose of your SS with the OS 160?

OS 160
Bore: 1.320 (in.)
- Stroke: 1.170 (in.)
- Shaft: 3/8 x 24 threads
- Low RPM: 1800
- High RPM: 10000
- HP: 3.700 bhp@9000 RPM
- Weight: 32.60 oz.

(in reply to krproton)

Post #: 307

RE: New Giant GP Super Sportster!!!!! - 12/11/2007 3:14:36 AM

rceric

Posts: 84
Joined: 11/23/2007
From: , MD, USA
Status: offline

Whats the largest prop that 160 can swing?

(in reply to SBrian)

Post #: 308

RE: New Giant GP Super Sportster!!!!! - 12/11/2007 3:33:44 AM

flaviosi

Posts: 222
Joined: 3/2/2007
From: Rio de Janeiro, BRAZIL
Status: offline

Eric,

quote:

So then the question is which gas engine?

For the previous posts I realize this will be your first gas model, right? If so, I'm almost begging you... GO WITH THE FUJI 32 EI. First, because it's a very reliable engine. It starts easy, handles a 18 x 8 wood or 18 x 10 carbon prop at 7,500 RPMs and it's just right for the airplane (going with a bigger engine will give you other problems like having to reinforce structure, biff the firewall and so on). Second, the instructions manual will give you precise directions to install THIS PARTICULAR engine and having good instructions is very important when installing a gas engine for the first time. They will even provide you the patterns to cut the cowl. Please, take this advice. You'll thank me when you're done.

A few tips installing the Fuji 32 EI. 1) You won't have room for the ignition on the firewall. Install it up front the tank and wrap it in aluminum paper (very important). 2) install the whole eletronics far far from the ignition. 3) take a plastic servo box, wrap it in aluminum paper and install it right in front of the receiver, like a shelter, a shell, to protect it from the ignition RF emissions.

If you have any doubts, let us know but, once again, for your own sake, go with Fuji 32 EI. I have a SS with this engine and I'm loving it so much that I've just bought another SS and another engine to try to fly together with my son in formation.

Once again, GO WITH FUJI 32 EI. I'll be waiting for the tap on my back with your big thankful smile.

Flavio

(in reply to rceric)

Post #: 309

RE: New Giant GP Super Sportster!!!!! - 12/11/2007 3:40:56 AM

rceric

Posts: 84
Joined: 11/23/2007
From: , MD, USA
Status: offline

Thanks Flavio! This is the kind of info I was hoping for! Good advice till the next guy chimes in about how the fuji is a piece of junk. I am almost sure to go with the Fuji though as of now.

Thanks again.

(in reply to flaviosi)

Post #: 310

RE: New Giant GP Super Sportster!!!!! - 12/11/2007 5:51:20 PM

fireman7875

Posts: 621
Joined: 2/26/2002
From: Durham, NC, USA
Status: online

I would say your biggest prop would be 22". You would still have to be careful with your landings. I don't think the 20" will be a problem. I have a 20x10 on mine but haven't flown it yet.

Brian

(in reply to ckangaroo70)

Post #: 311

RE: New Giant GP Super Sportster!!!!! - 12/12/2007 6:17:00 PM

mpeatfish

Posts: 1
Joined: 1/28/2007
From: oakland, CA, USA
Status: offline

hey ckangaroo70,did u use the supplied engine spacers with ur pitts muffler?,I have the bison pitts muffler for my g38,will it work?.Thanks for any help,new 2 posting,new 2 building.

(in reply to ckangaroo70)

Post #: 312

RE: New Giant GP Super Sportster!!!!! - 12/27/2007 7:05:27 AM

RCFlyerGuy

Posts: 7
Joined: 8/11/2005
From: Great Meadows, NJ, USA
Status: offline

Okay Guys, I'm on a tight budget

, so the SS I just ordered yesterday will get a converted Ryobi 31cc, the same as pictured on the Jag site here: http://jagengines.com/gss31.htm

I really like what Dan has done with this model, the Ryobi, and the revised landing gear. I read earlier how another flyer did something similar. Having the fuselage mounted landing gear just makes a lot more sense. Besides, this would eliminate the issue, also mentioned earlier in this thread, about landing gear mounting block breakage.

I've really been agonizing over which model to build, the Sig 4*, the Giant SS, or a Sr. Telemaster (all with the intent of being Ryobi powered) and after lots of emails and so on, and especially after "talking" with Dan Egelhoff (who has quite an impressive flight background) I'm convinced that this plane/engine combination will be a very wise choice. No, the Ryobi is not a super powerhouse, but it's almost perfect for this plane. The big advantages are that the Ryobi is very econimical to obtain and convert, and with the ultra reliability inherent to the Ryobi you can't lose. ( I have two of then - one in a weed whacker, and one in a leaf blower, both of which I've had for at least 10 - 15 years, and they are still both going strong and I've NEVER had to do anything to them except run them out of fuel at the end of each season before putting them away for the winter!

) I found a couple of Ryobi weed whacker head units on ebay for under $20.00 shipped, and with the conversion parts from Jag for just under $100.00, including the very nice muffler they offer, you can't go wrong! Parts are very inexpensive too, when and if they become necessary to obtain. With all this advantage, I just can't justify wasting money on any other engine, and if at some point in the future I feel that for some reason I need more power, I can always upgrade, although from what I've been able to gather, on this model it won't be necessary.

I can't wait to get my new bird, all the Jag parts for my engine, and get busy getting it all together. The Ryobi and the GP Giant SS are a great combination!

_____________________________

Thanks,
RCFlyerGuy

(in reply to mpeatfish)

Post #: 313

RE: New Giant GP Super Sportster!!!!! - 12/28/2007 4:25:53 PM