something new-
08-08-2002 | 08:10 PM
#1
Thread Starter
Senior Member
something new-
I thought I would build a pattern plane a bit different-and not expensive.
Also I wanted it to be legal -under 11 lbs and 2x2 m
Using the ZDZ40 RE engine and a can muffler- inexpensive and gasoline fed, I made a model with standard balsa foam wings and a stick and balsa fuselage.
The wing tail shape /layout is like a Giles 202-
final result weighs under 11 lbs.
It took some care and lots of testing for weight (grams count!)for all parts.
at 1287 squares - wing loading is 19 oz/ ft.
Flight characteristics are very good - No speed build up is required for any maneuver -
plane will fly very slowly and will also cut thru 20 mph wind as needed.
I used the new JR811 servos -ailerons 4x24" and a single servo on each works very well.
If you are sick of spending too much to fly pattern -try this approach-
The plane also will do hovers at a high idle etc..
It seems most guys are into ARFS now - but this approach is easy to do and frankly , flies the patterns easier than anything I have flown.
Has anyone else tried making a 40cc pattern model?
Let me know.
Also I wanted it to be legal -under 11 lbs and 2x2 m
Using the ZDZ40 RE engine and a can muffler- inexpensive and gasoline fed, I made a model with standard balsa foam wings and a stick and balsa fuselage.
The wing tail shape /layout is like a Giles 202-
final result weighs under 11 lbs.
It took some care and lots of testing for weight (grams count!)for all parts.
at 1287 squares - wing loading is 19 oz/ ft.
Flight characteristics are very good - No speed build up is required for any maneuver -
plane will fly very slowly and will also cut thru 20 mph wind as needed.
I used the new JR811 servos -ailerons 4x24" and a single servo on each works very well.
If you are sick of spending too much to fly pattern -try this approach-
The plane also will do hovers at a high idle etc..
It seems most guys are into ARFS now - but this approach is easy to do and frankly , flies the patterns easier than anything I have flown.
Has anyone else tried making a 40cc pattern model?
Let me know.
08-08-2002 | 08:20 PM
#2
something new-
Hi Dick,
Any Pictures? Sounds like great alternative to the ARF and outrageous $$$ for the OS EFI engines etc.
Do You plan to kit it or is it just a "hmmm lets see" type of project.
Regards
Bill
Any Pictures? Sounds like great alternative to the ARF and outrageous $$$ for the OS EFI engines etc.
Do You plan to kit it or is it just a "hmmm lets see" type of project.
Regards
Bill
08-08-2002 | 08:27 PM
#4
Thread Starter
Senior Member
something new-
I have some pics -but the present setup is not a good looking as I wanted - too stretched looking -
I am doing a new fuselage -to improve appearance -
Most of the new FAI models are frankly ugly in my book and I sure don't want it to also look like a guppy with warts on the cowl.
I am doing a new fuselage -to improve appearance -
Most of the new FAI models are frankly ugly in my book and I sure don't want it to also look like a guppy with warts on the cowl.
08-08-2002 | 08:41 PM
#5
something new-
Thats understandable! I look forward to seeing the new version.
I really like the ships that tend to look more "airplane" like.
A Dalotel or Zlin looking design would be nice. After flying your Dalotel prototype it proved that it can look good and fly well too!
As an aside, The light control surfaces that you design and build save servos in more ways than one. After the Dalotel went in all of my Servos were fine. The lack of mass during the impact didn't hurt the gears. I can't say that for more conventional (heavy) surfaces.
Of course I really don't like that I can make that observation!
Regards
Bill
I really like the ships that tend to look more "airplane" like.
A Dalotel or Zlin looking design would be nice. After flying your Dalotel prototype it proved that it can look good and fly well too!
As an aside, The light control surfaces that you design and build save servos in more ways than one. After the Dalotel went in all of my Servos were fine. The lack of mass during the impact didn't hurt the gears. I can't say that for more conventional (heavy) surfaces.
Of course I really don't like that I can make that observation!
Regards
Bill
