CEF speed contest Design Discussions

no no can do that also about 32 with wind chill working inside today will be a better day ..tank installed 2 small sc in eyelets and wire strains weather striping for vibration insulation ... I am with someone on here that said they would put a pee wee on there plane after the contest not to waste a perfectly good airplane     if it will carry it after I glue back together whats left      I noticed my controls were alittle stiff so I put a dot of oil on metal to plastic surfaces and man that made a big difference getback getting there .

I managed to finish! Now to get pictures posted.

Let's see if I get a chance to fly this thing during the contest period.

Phil

getback wrote:I wish it were 60 and no wind here . 25 mph and 47 degrees , nice most of next week while I am at WORK stupid WORK   ! I am going to try and fly in the afternoon some want to get the traveling engine in the air so I can send Rusty what's left   If I were to get my ass in gear I could finish the 2 hr. build on the XA-8 would hate to experiment with someone else s engine   ... Eric from Getback

Eric, don't rush the traveling engine just for me, I need a break anyway. I've been rushing my ass off at a snail's pace for longer than I can remember now.

Finally, it looks like I can make the deadline. Thanks to Lieven, Roddie, Gus, et al, I don't have to worry about looks. When it's finished I'll just throw a can of paint at it and post. The front end has taken forever. It got complicated when I insisted the engine be centered in the fuselage, thereby blocking the breather. So I worked around that and finally have something that looks like progress. A couple more hours tonight and a few tomorrow, up to 1:59PM EDT, and it'll be a plane.

Here she is now. Notice I've had to pipe the air into the back of the engine.:

...oh, cool tomorrow is the 31st!!!

For some reason I thought tonight   is the deadline! I better get to work, I had given up!

Good idea Rusty,

I am using the same configuration engine. I ground a shallow channel in my motor mount outwards toward the needle valve. I was toying with drilling a hole through the mount like you did, but on my plane it would have been a pain to try and keep an opening around the mounting braces.

Tonight's progress, I got a coat of primer on, wish I could get a lot of sanding done, but i'll be lucky to get it painted Monday.

Looking good and almost there. Press on man!!!!

It doesn't have to be finished to show quality just finished.

Ron

yep, the only can of primer I found had a clogged nozzle and squirted the paint, applied one heavy coat and I figured to sand it all off, but it will take all night to dry for sanding.

Mark....Worrking late also,I just finished the paint on my P39 Air Corba, I'll let it dry tonight & in the morning bolt in the engine add the wheels and take pictures!
If it ever stops raining we can meet sometime at Delta Park to fly!

RK Flyer

Slap some base coat on it and call it good enough! Nice looking so far.

Phil

ok, remind me...does lustercoat dry fast? For some reason i'm thinking its slow drying, its only been 10+ years since I've used it...same can!

Yeah it dries pretty fast. It's fuelproof and ready to fly in 24 hours if kept warm and dry. I used it to seal my waterslide inkjet Yak decals this morning and I'm going to apply them tonight.
Rusty

ok, its 8:45 (I got home at 7:00 tonite) had to mess with the kid's Yamaha, sanded appx 30 min, time to paint, silver or black.
10:00 Still drying, so I whipped out the drying oven.

12:38 EDT, an hour and 22 minutes to spare. I am out of gas. It's a plane. It will fly like it is. If I can't do anymore finishing without DQing, I'll fly the bare balsa.

Here are some pics of the final sprint:
I laminated my elevator with internal hinges


Almost there


Just look at this mess. My table never gets this messy.  


Now over to the photo qualifying thread. I hope JP lets me in without paint. My back is broke and I gotta be at the field with the Yak in 8 hours.
Rushin' Rusty

Mark and Rusty,
I extended entry to midnite Tuesday the 2nd so everyone currently working can finish.

Jim

roddie wrote:

pkrankow wrote:I managed to finish!  Now to get pictures posted.  

Let's see if I get a chance to fly this thing during the contest period.  

Phil

You must be "straight-out" with the new baby. Hope she's doing well!

nice looks good to me Man I am impressed in the short amount of time u have stressed ur self through the build took me a longer than thought time myself!!  

When we post our pictures of the speed planes, are we allowed to keep working on things? Like the engine? Trimming? Balancing? Anything off limits after posting the picture?

duke.johnson wrote:When we post our pictures of the speed planes, are we allowed to keep working on things? Like the engine?  Trimming?  Balancing? Anything off limits after posting the picture?

I think the airframe is all that cannot be changed. I see no reason to not put details in such as paint and trim. It is expected that balance, trim, etc. will be altered between the first few flights and the "official" flight. Record all attempts, you might change something that causes it to slow down!

Phil

duke.johnson wrote:When we post our pictures of the speed planes, are we allowed to keep working on things? Like the engine?  Trimming?  Balancing? Anything off limits after posting the picture?

Yes,
Switch props, glow head, move leadouts, shift balance, do whatever it takes to go fast.

Jim

Well done everyone.    At the speed my Cadet build is going I'm glad I didn't attempt a built for this competition.  Although, reading what some of you have done it shows that you can achieve amazing stuff when put under pressure.  Pity the Cadet isn't modelled on a full size plane, or I might have been tempted to have a go.  Other than that, I do have Sig Deweybird and Beech Staggerwing kits which someone mentioned might have qualified.

At least with this race (unlike the Tach Race) I wouldn't have to send my stuff half way around the world again.

I look forward to some stories about maiden flights and eventually seeing some videos of your attempts.

Rod.   

Rod,
That staggerwing is a great plane. I would suggest leaving the landing gear off and fly over a grass field. Just make sure you use good leadouts  
Here's my staggerwing thread:
https://www.coxengineforum.com/t4870-scratch-built-sig-staggerwing-build-thread-version-30?highlight=Staggerwing

Jim