Hi Mark,

Enjoyed your work at the Don Lowe Masters!

I'm interested in the Godfrey 40% Extra 300 and would like to start a new thread on this nice A/C.

Please comment on your setup for this airplane. Some quick questions that I have are: What servos are you using currently on each surface? Are you still using single aileron servos? Are your rudder servos in the tail for balance or for other reasons (saw this on your 'ol red')? What's it weigh? Using Dalton's CF cannisters? Etc., Etc.

I'll be flying IMAC primarily and am convinced the original mid wing Extra 300 is the hot ticket for precision work. Am I on track?

Thanks,
Chris

Hi Chris,
This is Tony from Dalton Aviation. I built both 40% Extras for Mark and can answer some of your questions. The plane RTF weighs 42 lbs using my Carbon cannisters. His new plane has 3 8611 servos per aileron, 2 8611 per elevator and 3 8611 for the rudder. Mark likes the rudder servos in the tail because you can have the servos pushing and pulling, plus you dont need to worry about stretching or breaking cables. I am currently working on a Carbon gear to replace the aluminum to reduce the weight. We also moved the wing up making it a 300 instead of the 300L and now takes around 3 to 4 % pitch and roll coupling. I also flew the same plane at the Nats and it is one of the best flying planes I have ever flown.
Hope this helps and I am sure Mark will be by soon.

Tony
www.daltonaviation.com

I have always liked the 300 design, ever since the 33% from Bob back in the early 90's. Very axial airplane and extremely responsive. Lower mixing value due to moving the wing back to its original position. There were a lot of designs that moved the stab down to match the wing, but I felt that it was best to move the wing back to the center of thrust.
0-0 incidence! The 300 is an amazing airplane. I am looking foreward to seeing what it will do with a DA 200 on the front end.
If you have any other questions about the airplane, please feel free to email me your phone # and I will be happy to chat about the design.

Mark

Thanks for the replies Tony and Mark!

I've always wondered why most all the big name designers followed each other down the Extra 300S & L route while the most neutral flying Extra design was almost forgotten. I hear that Carden is testing a Extra 260 and a Yak design to get on the mid wing wagon.

Is the Godfrey's weight an issue with a 150cc engine?

Thanks,
Chris

Hi Mark,

what significant differences do you feel between the Godfrey mid-wing Extra 300 and the 260 Extra as far as precision flying goes ?

Thanks,
Paul

The Godfrey has a little higher wing loading....So in the wind and thermal activity the airplane feels more Solid. With the longer Fuse, the precision in rolling maneuvers is better. Tracking is better as well. The aircraft has less tendency to veer off heading. The 300 is essentially the Stretched 260. The 260 snaps better and flys 3D maneuvers a little tighter because of the shorter moment. Also less control input is needed for any given maneuver. Hammerheads turn out a little better with the 260. Mixing value is about the same with both airplanes.
Mark Leseberg Jr.

Dear Chris and others,I could answer some of your more design oriented questions about the 40% 300.As far as set up of the airplane,I will never be the pilot that Mark is or do I wish to be.I enjoy my work in the shop and on the computer with building and design,but I do like to fly every chance I have.
I once suscribed to a forum like this and it came down to a lot of pilots pionting out why brand 'x' is better than brand 'y'.This got in the way of my reason for my imput,that is the advancment of the hobby with out giving up too much information,we are still in the model airplane manufacturing bussiness.

Thank you,
Robert Godfrey

I think I'll build one, see how it compares to 3.1 SuperExtra.

Thanks,
P.

does anybody have pics of the Bare Airframe....and would the 200cc engine be a wiser choice for thie plane,such as the ZDZ210??

I think that Tony Russo or Robert Godfrey have pics of the Fuse. I will ask them to post if they do actually have pics. I have a DA-200 going into my airplane for next season. I should fly the DA 200 in a few weeks with a report.
Mark

Mark, are u gonna run stock mufflers or do some sort of caniseter setup? I'm not sure how that would work with a 4-cyl besides using 4 cans.

-Kelly Gerber

I do have a couple of guys working on the 4 into 2 setup. There is a lot to figure out to make this work properly. Four Tuned Pipes is too much. I want it light. For now, I will run the stock system for break-in and take it from there. I want to get a good motor broken-in before we try and make it have a lot of power. One step at a time.
Mark Leseberg Jr.