[&o]WOA, iLL NOT COMPLAINE EVER AGAIN, HONEST JIM

Phildo/Lawrie, Without having any wheres to float fly, you guys are truly missing a great deal of fun. The oceans surrounding you are filled with Great Whites, The kangaroos are becoming more hostile to people, too many flying saucers are in the air. FIND A POND OF WATER TO FLOAT FLY BEFORE IT"S TOO LATE ! MM

MM I like your RV colection in addition to your Corby! Question: How wide is the cowl on the CS? I want to see if one of my twins will fit inside without a butcher job. I'm thinking a Saito FA90TS would fit nicely without overpowering it.



Thanks.

Hanoiboi, I'll post the cowl demension Thursday for you. A .90 is awful big. Whats your altitude. I run a Saito .82 and it appears to be the best set-up. The cowl is quite roomy inside but it's best to mount the engine inverted and run your exhaust flex tube out the bottem. Use a Dubro refueler and mount it to the bottem/back of the firewall. This really is one of the very best ARF's but it simply is not "taking-off" in popularity. It may be taken out of production soon,it's not even being advertised anymore either. Strange indeed. Seeya, MM

Mike, I second that. A 90 is very big for the Corby. I use a Magnum 70 and have ample power. Mine is mounted horizontally and fits within the cowl entirely.
I am at a loss to explain why the Corby isn't more popular than it is because everyone at the flying field comments on it and the quality of the kit is excellent.
Anyhow, it's their loss ..... I might buy another one to set aside for later ..........

Ari

Well, keep in mind guys that he's talking about a 90 twin cylinder - not nearly as strong as a single cylinder 90. I think he's just trying to see if the thing will fit inside the cowl properly for now. I'm rather curious myself since I like to use twins. BTW, MormanMike did you mean next Thursday?

Well said Daniel-L, my thoughts exactly.

Hanoiboi, the cowl is 8 and 3/8 inch wide, cheek to cheek, each cheek is 2 and 7/8 high and 5 and 1/8 INCH long from the rear of the cowl to eng opening not including the cheeks going further back. hope this helps? builder jim.

Thanks, Jim. Looks like the Saito twin will fit inside with room to spare. Appreciate your help!

Daniel, My apologies, yes, I meant next Thursday. Builder Jim is right on with the cowl measure ments. Thank you for posting them. No one has said anything about trying this ARF on floats [ using Falcon Floats ] My company's web server is putting a block on the computors here at work So I'm unable to post photos for the time being. I don't have the internet on my home computor untill I upgrade it. Seeya, MM

Mike,

Can you please elaborate on the floats a bit. I'm not sure I have seen Falcon Floats

Ari

Would a Magnum 160 twin be too much weight up front for this plane? It's 45 ounces. How much lead did you guys add to balance the nose with your 70's-90's?

an OS70 ultimate is more than enough for this plane and i have no extra waight in the nose

No doubts, a 70 would be enough power. I just wondered if the 160 twin would fit and the plane balance. I'm looking for the smallest plane I can find to fly with the 160.

In another thread, someone posted that they had to add 9 ounces lead to balance their 70.

The fs70 is 18oz so the 160 would be 27oz more on the front it mite balance with the battery towards the tail but it would end up being a heavy plane lands fast as it is without the extra wieght.
the cowl is wide plenty of room for the fs70 side mounted you need a extra long glow driver to reach it.
Just looked at the specs of your magnum 160 it would be to much for this little plane and to heavy

Interesting question. What is your goal; high speed, ease of transportation...?

Jim

I have two - one powered by a magnum .70FS and the other powered by a Magnum .61 2 stroke. Both have ample power and fly scale.

I ORIGINALLY POSTED THIS IN THE BEGINNERS FORUM..... BUT AS IT RELATES TO THE CORBY I THOUGHT THAT YOU OTHER CORBY OWNERS MAY LIKE TO READ THIS....

Well today was even BETTER!! The weather in Sydney was perfect for flying and today I took full control of my trainer and flew about 10 to 20 circuits!!.. I even took off once... but I left the landing for the more experienced guys... It was a great day for me... but unfortunately the young bloke that is teaching me crashed his sporty bright yellow CORBY on the last flight... man did I feel bad for him...

Now I will just start in saying this guy can fly (aerobatics etc) ... but what happened was he was coming around in a left hand turn onto final... lining up with the runway for the landing... remember this is the last flight of a great day.... a momentary lapse in concentration or a gust of wind.....when all of a sudden the little beautiful CORBY right wing tip stalls and violently banks right wing down and starts heading for the ground and big gum trees. The pilot applied full throttle and full up elevator and for a moment I could see the CORBY dashing through the trees at the end of the runway... but when she didn't come up he knew he was beaten and went to zero throttle...... we started the long tense walk and found her at the bottom of a tree... the damage was amazingly light. Just the front cowling, a bit of the fire wall, the propeller and a couple of holes in the right wing... another one of the club blokes said he would help him to fix it all up... so not too bad considering where she went in... this was the first crash i had witnessed and man did I feel sorry for the pilot. He had just spent the entire day instructing me as well..... Oh well I guess this is part of R/C flying hey...

I am just loving this new hobby and I think I may have caught the bug.... is there a doctor in the house?!!!

You`re doomed, mate! There is no cure for this affliction!

I have been waiting for the Corby to go on sale. Gotta save money wherever I can considering how much I spend on this addiction!! It has never been on a sale at Hobby People and it has been listed as "limited supply" for a couple months so I went down and bought it yesterday to be sure I don't miss out on it.

Looking at the parts, the fit and finish is amazing. Not a wrinkle in sight.

Now I need to decide on an engine. The 160 is obviously not a consideration. Would a Saito .60 Twin be enough? Box states 60-72 four stroke power.

Just bought myself a second hand Corby. General concensus is a Magnum 70FS is the motor of choice so will have to chase one up. As my Corby is second hand, I don't have the instructions so am wondering if someone can tell me the CG position. I do fly off water, we have a large dam we are able to use in the next paddock beside our flying field, and the idea of the Corby on floats really appeals!

Here is the manual, mate:

http://media.hobbypeople.net/manual/127532.pdf

Thanks heaps for the Corby manual download. I'll now be able to set this cute little model up just right. Motor is on order, and I'm definately going to look into putting it on floats. Should look great! Thanks again.[8D]

Just remember Phil that these little suckers are very pitch sensitive ... Make sure your CoG is spot on. Even losing fuel during flt will upset these sort moment planes. Bigger four stroke like a 90 would be overkill but would help with weight up front. Chris White (designer) would not agree though but hey .... I have one and so do many club members who say the same thing.
For warned is for armed.
Phil

Thanks for the warning.Phil. I'll make sure everything is spoton for the first flights, and then adjust from there if need be. Phil