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All Forums >> RC Airplanes >> Giant Scale Aircraft - 3D & Aerobatic >> Aero-Works Support >> 50cc Prodject
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50cc Prodject - 4/24/2008 11:53:39 AM   
jonesjj3


 

Posts: 17
Joined: 5/17/2005
From: Rockford , IL, USA
Status: offline 		Greetings All,
Getting back in to Airplanes after about an almost 10 yr layoff, been way to long, have been flying helis for the last 10 yrs and want to get back to flying planes again.

I am looking at the Pitts or the 260 both in QB for a 50cc size ship and wondering if anyone could help with some information on how they fly ? maybe some diffrent charactoristics of each, I have been looking at the threads on each but thought I would put a post on these 2 anyway to see if I could get a compairison of these 2 ships.

I am not a 3 D pilot but do like to do basic aerobatics I guess I fly more on the conservitive side than the extreem side.

will the 50cc DA, 3W type eng be enough for ether of these two ships to fly them sufficiantly?

thanks for any Responce

Jeff




       Post #: 1

RE: 50cc Prodject - 4/24/2008 9:29:23 PM   
Mark Dennis



Posts: 1311
Joined: 2/24/2004
From: Parker, CO, USA
Status: offline 		Jeff,
Glad to hear you are coming back to the pane side!

If I were in your position I would go with the 260, it is much easier to fly and is fully unlimited on a DA/3W 50. Not saying the Pitts isn't but I think after being away from fixed wing for 10 years it would be a much easier plane to transition with.

_____________________________

Team Aeroworks
Thank You: Aeroworks, Desert Aircraft, and Smart-Fly

(in reply to jonesjj3)
       Post #: 2

RE: 50cc Prodject - 4/25/2008 1:51:57 AM   
reyn3545



Posts: 951
Joined: 7/1/2006
From: Alpharetta, GA, USA
Status: offline 		I've owned both the Extra and now have the Pitts... If you're just coming back in and looking for a good aerobatic plane, as opposed to an acrobatic one.... you can't beat the Extra. Next to my Composite plane, its the straightest flying, best landing plane I've ever owned. Very stable, long glide path, and balances well... the flattest spinning plane I've ever seen.

Now, if you're into 90 mile per hour ailerons... it's hard to beat the Pitts! I've had about a dozen flights on mine. I did upgrade the DA-50 to a 3W 55-CS... the plane comes in a tad on the heavy side for a DA-50, but it will fly it OK. The 3W makes gives it the "umph" needed to have some real fun.

The Extra is an easier plane to build, literally an 8 to 10 hour job. the Pitts is advertised as 12 hours, but I hope your watch is running slow. Neither is that difficult, the QB series is a REAL time saver. I've been flying these for a couple of years now, never had an issue with control surfaces coming loose.

< Message edited by reyn3545 -- 4/25/2008 1:55:06 AM >

(in reply to Mark Dennis)
       Post #: 3

RE: 50cc Prodject - 4/25/2008 3:37:43 AM   
jonesjj3


 

Posts: 17
Joined: 5/17/2005
From: Rockford , IL, USA
Status: offline 		Thanks guys for the honest opinions, another question on the pitts if set up on the concervitive side in the begining and keeping the speed up on the landings (flying it in) do you think there will be much more difficulty in operation of it over the 260?

Just looking at the pitts I like it little more ( sort of partal to 2 wings )

reyn3545, going to the 3W 55 were you able to just move some thing around like batt to get the CG where it is recomended (if that is where you are flying it ) or are you running behind the recomended CG?

I have been leaning tword the 3W 55 a little over the DA for that little more Power, not ever running eather eng I gather I will get opinions on each.


Thanks
Jeff


(in reply to reyn3545)
       Post #: 4

RE: 50cc Prodject - 4/25/2008 4:16:28 AM   
reyn3545



Posts: 951
Joined: 7/1/2006
From: Alpharetta, GA, USA
Status: offline 		I was very suprized with the Pitts install... no CG changes whatsoever! I did go with the rear carb option, which shifted the weight back just a little, and the 3W ignition module doesn't require a voltage regulator, so that saved a little. I was expecting to have to shift the receiver batteries back more, but it balanced out just fine.

As for the landings, you'd be suprized.. the plane floats in very nice. You might make a slow pass or two just to get a feel for it, but when I line up on the runway and chop the power, its a very managable glide path to the ground. Lots of wing area on this one.

The 260 glides for about a mile on the landings. I guess that can be good or bad, but typically I would chop the power, then make my final 180 turn, the plane would land somewhere between the middle and far end of our 1000 foot strip!

The Extra is a little more responsive to the throttle.... its a lighter plane, less drag with one wing.

If I had it to do over again (the biplane build) I would still go with the 3W55-CS.. but probably the side carb instead of the rear carb. It might leave the weight a little further forward, but I think it could be balanced by moving the batteries. The throttle and choke servos are a little more of a hassle with the rear carb setup.. not enough room to work in to get the servos mounted, linkages setup properly, etc.. The side carbs are only available through aircraftinternational.com, but they are a very reputable dealer.

To contrast the two engines... the DA50 usually works well on a 22x8 prop. I'm breaking the 3W in with a 22x10, and might go to a 22x12 once I get a few gallons through it. I'm still running pretty rich for now, and the 22x10 will take it vertical as far as you want to. Some people say they are a little more finicky than a DA... I've had a few challenges so far, but nothing too extensive. The 3W does run hotter, but that's to be expected. It has a higher compression ration, less cooling fins than the DA, and it runs on a higher octane fuel (yep)... I had to build a baffle to direct airflow through the fins, that took about an hour, but after that, the operating temps are below 200... well below any danger level.

You can do a search on f-l-y-i-n-g g-i-a-n-t-s dot com (this website would * out the site if I typed it in) and do a search for the Python... There are a few of us with posts out there on the plane, motors, etc..

< Message edited by reyn3545 -- 4/25/2008 4:17:45 AM >

(in reply to jonesjj3)
       Post #: 5

RE: 50cc Prodject - 4/26/2008 3:06:36 AM   
jonesjj3


 

Posts: 17
Joined: 5/17/2005
From: Rockford , IL, USA
Status: offline 		Well I purchased the Pitts today here at TOP GUN in Lakeland Fl, and the 3W-55iUS TOC Edition (side carb) will be going in it for power.

I have email AI and will hopfully get responce on availability soon.

Iam sure this will be a great and fun prodject to assemble and get flying.

I have been reading what post are on the forum here about the pitts, but if anyone would like to post anything about this ship on this thread that would be welcome also.

Jeff



< Message edited by jonesjj3 -- 4/26/2008 3:09:31 AM >

(in reply to reyn3545)
       Post #: 6

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