Scratch building 105" WS S Connie L-1049 (Pics added)
#1651
Well guys it's seems as I don't have that desire in me now days to fly this bird. I have been procrastinating on couple things to finish on it but it's not in me to do so anytime soon. I'm guilty of saying it will be done in couple weeks over few times but reality is I'm very afraid of losing it and it will hurt me a a lot God forbid if it happened!. This bird means a lot to me and it costed me In thousands to build it not to mention years it took to be built, so maybe I'll get over this hard step n will fly it before the end of this year, time will tell. Lately it feels as if I'm pushing myself to finish her up and that feeling just puts me off. I really don't know what it is but it is what it is. Hope some of you guys can understand my feeling.
Sam,
You have got to look at it this way.
Yes it cost a lot of both time and effort to build it but if something did happen you can always build another, and it will come out lighter stronger and better.
At least that's what I think as I prepare a plane for maiden.
One thing you have to accept with this hobby is that sometimes planes crash.
I always try to look at it as a learning experience.
#1653
My Feedback: (17)
Well guys it's seems as I don't have that desire in me now days to fly this bird. I have been procrastinating on couple things to finish on it but it's not in me to do so anytime soon. I'm guilty of saying it will be done in couple weeks over few times but reality is I'm very afraid of losing it and it will hurt me a a lot God forbid if it happened!. This bird means a lot to me and it costed me In thousands to build it not to mention years it took to be built, so maybe I'll get over this hard step n will fly it before the end of this year, time will tell. Lately it feels as if I'm pushing myself to finish her up and that feeling just puts me off. I really don't know what it is but it is what it is. Hope some of you guys can understand my feeling.
A major part of the reward in scratch building is the rush you get when you fly it. The only way that happens is investing your skill and many hours of the design, engineering and building process of the beast. All scratch builders go through the exact same thing. When I get stuck on a build, I find that it works best if I just suck it up and get out in the shop and get building. It has always paid dividends.
Make sure you do your homework on the control system installation, power system, wing/stab/thrust alignment and CG. Nothing to be afraid of.
#1655
Junior Member
Join Date: Oct 2014
Posts: 1
Likes: 0
Received 0 Likes
on
0 Posts
Hey guys,
A new member here. I am looking for some help with Design Data for Constellation 1049. I am in process of creating a 1:1 scaled cad model of the plane`s wing. However, I am unable to determine the chord length for root & tip aifoils from the drawing that I have. I was hoping someone here would be able to help with the process of calculating these chord lengths. Any help will be appreciated. I have attached my reference drawing below.
A new member here. I am looking for some help with Design Data for Constellation 1049. I am in process of creating a 1:1 scaled cad model of the plane`s wing. However, I am unable to determine the chord length for root & tip aifoils from the drawing that I have. I was hoping someone here would be able to help with the process of calculating these chord lengths. Any help will be appreciated. I have attached my reference drawing below.
#1656
You can get good data from here. http://www.bobsairdoc.com/, I use them a lot. I try not to use the small 3-views you find online as they a usually just nice sketches that some one threw a bunch of miscellaneous dimensions on.
Last edited by ByLoudDesign; 10-24-2014 at 12:23 PM.
#1657
My Feedback: (4)
Join Date: Dec 2001
Location: Rochestern/a
Posts: 75
Likes: 0
Received 0 Likes
on
0 Posts
Ranpreetbhatia. Sorry, I m not much into the design end of airplanes, and my model is a 134" wingspan version. It was from a Don Smith plan. While you are designing, I am looking for a set of plans for a Lockheed Electra, L188, of the same scale as the Connie.
#1658
I have a Lockheed P-3 Orion, is a modification of the Lockheed L-119 Electra in 1:10 [120" span. It is being built in Australia: P-3 ~ http://www.rcgroups.com/forums/showthread.php?t=1745119
#1659
My Feedback: (4)
Join Date: Dec 2001
Location: Rochestern/a
Posts: 75
Likes: 0
Received 0 Likes
on
0 Posts
Tell me more. I don`t know what the difference is between the l119 and the L188 is, but I am shure I could modify it to meet my needs. The Connie was the first airplane I flew for Eastern air lines, and the Electra was the first plane I flew as Captain, so they mean something to me. The Electra fuselage should be easier to build because it is a strait tube, while the Connie had a hump in it, which was not on the plans. I had to modifiy it, mostly by sight, and it came out good. I`ll have pictures of it by the end of next week.
#1660
Thread Starter
Join Date: Aug 2005
Location: Mississauga,
ON, CANADA
Posts: 4,196
Likes: 0
Received 1 Like
on
1 Post
Update:
Finally now that I have urge to fly this model, weather can't make up it's mind!, was out with it yesterday testing everything, taxing it around but it was crazy windy at 24C temp. So couldn't do high speed test runs or even a small hop flight. Thought it would be same or better today, yet its 11C and same crazy windy....oh well let's see when it will be good to it. But im happy to say, all systems are working well except for air in landing gears system. Im still not sure if I should leave it empty in current locked down position or fill it up buy im not going to operate landing gears on first 3 or 4 flights...
Finally now that I have urge to fly this model, weather can't make up it's mind!, was out with it yesterday testing everything, taxing it around but it was crazy windy at 24C temp. So couldn't do high speed test runs or even a small hop flight. Thought it would be same or better today, yet its 11C and same crazy windy....oh well let's see when it will be good to it. But im happy to say, all systems are working well except for air in landing gears system. Im still not sure if I should leave it empty in current locked down position or fill it up buy im not going to operate landing gears on first 3 or 4 flights...
#1664
Sammi,
I would leave them down and locked,one less thing to worry about while trimming the first flight and the cg may shift when retracted that could cause some unexpected problem try to get a video.
I would leave them down and locked,one less thing to worry about while trimming the first flight and the cg may shift when retracted that could cause some unexpected problem try to get a video.
#1665
Thread Starter
Join Date: Aug 2005
Location: Mississauga,
ON, CANADA
Posts: 4,196
Likes: 0
Received 1 Like
on
1 Post
If I think about the cg with gears up or down I don't think with this model It will change alot as mains fold forward and nose gear folds backwards into the fuselage. But I will see how it is on the table first before retracting them during flights.
#1666
My Feedback: (23)
I never test fly a model without all systems 100% operational. It doesnt matter if its my model or someone elses, if its not 100% ready and prepped (that includes full pressure in air systems), it doesnt leave the ground.
Reason for this, ive had more than one model that NEEDED the gear just to get above the tree line. Not to mention a multi engine has better engine out performance with the gear up.
Reason for this, ive had more than one model that NEEDED the gear just to get above the tree line. Not to mention a multi engine has better engine out performance with the gear up.
#1667
Thread Starter
Join Date: Aug 2005
Location: Mississauga,
ON, CANADA
Posts: 4,196
Likes: 0
Received 1 Like
on
1 Post
Well due to weather pretty much gone down to lower single digits, I highly doubt maiden will happen now unless it's done on skies....lol
Also had a small failure yesterday when going through tail controls, wishbone control bracket that was made couple years ago to control both elevators with one servo from the middle of the fuselage has failed its solder joint internally!, this made both elevators to deflect freely....I've now gone back to original plan A route and will be placing 2 servos, 1 on each side to control both elevators separately.
Also had a small failure yesterday when going through tail controls, wishbone control bracket that was made couple years ago to control both elevators with one servo from the middle of the fuselage has failed its solder joint internally!, this made both elevators to deflect freely....I've now gone back to original plan A route and will be placing 2 servos, 1 on each side to control both elevators separately.
Last edited by Props4ever; 11-08-2014 at 12:03 AM.
#1668
Thread Starter
Join Date: Aug 2005
Location: Mississauga,
ON, CANADA
Posts: 4,196
Likes: 0
Received 1 Like
on
1 Post
Made original servo bays bigger in the bottom of the stabilizer on both sides to fit Hitec 645MG servos and connect them to the elevator through control torque rods and horns externally. This saves time and energy.
#1670
Thread Starter
Join Date: Aug 2005
Location: Mississauga,
ON, CANADA
Posts: 4,196
Likes: 0
Received 1 Like
on
1 Post
That's why im not at all in any rush to get her into air until its all perfectly ready to fly. Checks over checks revealed this issue and one that could have killed her on takeoff!.
#1673
My Feedback: (3)
The linkage that failed doesn't look very robust for the size of model. If it is 4 40 rod its strength is in line with the rod not at right angles as it looks like it was being used. My quarter scale Cubs and Aeronca used a similar setup but the elevator actuator was 5/32 and the 90 degree lever was hard brass on each side the ball clevis silver soldered to the wire. Even if soldered correctly it doesn't look robust enough to do the job. Also it looks like a cold solder joint and lack of cleaning the flux afterward contributed to the failure. In the next pictures is that the underside of the stab? It looks like raw unfilled fiberglass cloth not exactly scale is it?
After all the hoopla I was expecting a lot better. Good luck with the maiden.
Dennis
After all the hoopla I was expecting a lot better. Good luck with the maiden.
Dennis
#1674
My Feedback: (6)
Well due to weather pretty much gone down to lower single digits, I highly doubt maiden will happen now unless it's done on skies....lol
Also had a small failure yesterday when going through tail controls, wishbone control bracket that was made couple years ago to control both elevators with one servo from the middle of the fuselage has failed its solder joint internally!, this made both elevators to deflect freely....I've now gone back to original plan A route and will be placing 2 servos, 1 on each side to control both elevators separately.
Also had a small failure yesterday when going through tail controls, wishbone control bracket that was made couple years ago to control both elevators with one servo from the middle of the fuselage has failed its solder joint internally!, this made both elevators to deflect freely....I've now gone back to original plan A route and will be placing 2 servos, 1 on each side to control both elevators separately.