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New Top Flite P-40 60 sized arf

Old 02-22-2012, 12:20 PM
  #376  
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Default RE: New Top Flite P-40 60 sized arf

WingSpan retracts will work and are being used in this and similar planes. They rotate 100 degrees and are electric:

http://www.wingspanretracts.com/Rotating_Retracts

Also some people are using the E-Flite electric 25-46 size retracts in the TF Corsair 60 size. They are good up to 10 lbs.

Bruce
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Old 03-23-2012, 10:44 AM
  #377  
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Default RE: New Top Flite P-40 60 sized arf

Anybody still working on their warhawk still? I thought I would give this a kick to see if it's still alive. I found this site with some great pictures and info about the P-40 http://www.p40warhawk.com/index.htm How are the electric retracts working out? I am using the 615's for mine and I modified them to help with the twisting and sloppy fit. I drilled out and inserted helicoils into the trunions to allow for the screws to be tightened up good to take out the side play. I also drilled out all the set screw holes and retapped for 6-32 button head socket screws. for the wire stubs and robo-struts. I filed flat spots where ever there was a set screw, so hopefully this will help. You would think that Robart would make some improvements to these gear after all these years. They seem to have a take it or leave it attitude I am using the DLE 20 engine in mine as I have 2 already and they are great engines and cheap to operate.
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Old 03-23-2012, 10:54 AM
  #378  
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Default RE: New Top Flite P-40 60 sized arf

Yep. But a run of unseasonably GREAT weather has me doing other things, like flying my other planes, riding my motorcycle, etc. in Michigan, we NEED winter weather so we can stay inside and build. Weather is turning just a little like it's supposed to be this time of year )but STILL higher than normal temps), so I should be able to provide an update by next weekend/ end of March.
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Old 03-24-2012, 08:35 PM
  #379  
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Default RE: New Top Flite P-40 60 sized arf

Me too.....a little bit about what I've been up to....

http://www.youtube.com/watch?v=2Uk0JNn5Rf4


See you at our PMAC warbird meet, CorsairJock! Bring some friends if you like!
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Old 03-25-2012, 03:56 PM
  #380  
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Default RE: New Top Flite P-40 60 sized arf


ORIGINAL: Aluminum Overcast

Me too.....a little bit about what I've been up to....

http://www.youtube.com/watch?v=2Uk0JNn5Rf4


See you at our PMAC warbird meet, CorsairJock! Bring some friends if you like!
AO;
That was a sweet video up to the part with the tree. Is that tree days number?? I do have a chain-saw if you need it!!!
Happy to hear you have it back up and flying. Love the mods!!!
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Old 03-26-2012, 08:12 AM
  #381  
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Default RE: New Top Flite P-40 60 sized arf

I know what you mean about the weather, it was up to 80 deg here last week in PA. We just had a very succesful swap meet this weekend for our club and it was so hard to not buy another plane but I resisted and bought all kinds of accessories instead. There was this guy there who bought out a hobby shop and he was selling stuff crazy cheap, I bought like a $100 worth of stuff for $30.00, things like Dubro hardware, os parts, Robart stuff, I bought a Dubro anti vibration mount for $5. They go for $40 on Tower. I will try to post some pictures of my assembly and the install of the DLE, it took a little head scratching to set up the throttle.
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Old 03-28-2012, 08:30 AM
  #382  
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Default RE: New Top Flite P-40 60 sized arf

AO: awesome video, and really nice work on the details... I like your exhaust set up I'm still struggling with mine.... I have OS 95V in mine and the stock exhaust that came with it is awkward and not easy to set up on this plane....

Rapture: My bird is grounded for the exact same reasons right now and I haven't had time to fix it... Makes me mad that I paid so much money and I have to do all this rework to the gear... I have other warbird projects coming down the road and my last resort will be Robart retracts.... Great ideas though I will be using them. Thanks.
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Old 03-28-2012, 09:06 AM
  #383  
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Default RE: New Top Flite P-40 60 sized arf

Thanks!

Exhaust issues and how to hide them: Problem number 1 in scale stuff.

Have you tried Macs products or something like that aftermarket for tubes, manifolds, etc.? They make a wide range of stuff that might be useful to you.


http://www.macspro.com/four_parts.asp
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Old 03-28-2012, 03:08 PM
  #384  
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Default RE: New Top Flite P-40 60 sized arf

Thanks for the tip... I don't know if u seen pics in my previous posts of my setup but it seems when I had the hose extension after the muffler the engine ran hotter and I had less power... Any type of tube I would use back there wont stand the heat and usually break off. I used high heat silicone and automotive heater hose as well.. All couldn't withstand the heat.... On one occasion the exhaust got so hot that it loosened up an mad a hole through the cowl.... So I think I might just turn the muffler around and just the hole already their .
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Old 03-28-2012, 06:21 PM
  #385  
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Default RE: New Top Flite P-40 60 sized arf

Doctorjet, here is what the doctor ordered http://www.rcuniverse.com/forum/m_14...tm.htm#1438302 Iused helicoils instead of the keenserts as they were easier and cheaper. I found a kit online that has the 10-32 coils and tap and insertion tool for around $20 Perma -Coil 1208-201 is the part # Good luck on the repairs.
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Old 03-28-2012, 06:44 PM
  #386  
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Default RE: New Top Flite P-40 60 sized arf

I can believe what you say as the engine will run hotter and thus less power with that set up. The hot gasses pass down the tube to the muffler where they expand and then get re-compress trying to get back into the exit tube resulting in back pressure. Some back pressure is okay and form engine to engine most benefit from it to some degree. Ever seen someone play with a tuned pipe trying for that magic setup? Try putting the muffler as far back along the tubing as you can. As you probably would expect there is a magic setup for your specific equipment but you will have to experiment a bit...I'm doing the same here but I think I have the balance between good performance, somewhat quiet but sweet sound and long lived mechanicals now. You can also try weston UK or performance specialties for more add ons that may help you. I can say the corrugated tubing from macs is different than the O.S. you will need their tubing to go with their headers and add ons but it is all very high quality stuff and priced well too.


http://www.pspec.com/

Cool fix for the Robarts. So far mine are working well but a few buddies at the field that have them have had the same problems...I'll pass your thread to them.
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Old 04-20-2012, 07:58 AM
  #387  
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Default RE: New Top Flite P-40 60 sized arf

Well I finally got the maiden in on Wed night, and it was sweet. Powered by the DLE 20 it rocks!I had the usual nervous nelly shakes but all for naught. She really was no problem, a few clicks of ail trim and it was hands off. Takeoff with out flaps was straight and easy, just ease up the throttle and apply some up elev to keep the tail down then ease off unitl she gets light on her feet. Landing was smooth with full flaps there was no climbing and a greased landing on the mains. My only problem remains nosing over on taxi. Pictures to follow soon.
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Old 04-20-2012, 08:32 AM
  #388  
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Default RE: New Top Flite P-40 60 sized arf

raptureboy,
Congrat on your maiden flight!! You are so right about the nose overing. I can hold full up and she still go over. The C.G. as per the manual and I drop 2oz weight in the tail and she still nose over. Now I do fly off grass, but I can take her to a pave strip to see if she still nose over!!
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Old 04-20-2012, 05:32 PM
  #389  
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Default RE: New Top Flite P-40 60 sized arf



Mine balanced spot on with no added weight but, I am using 4" Robart scale wheels and with the gear down she is way nose heavy, but with the gear up she is fine. I may switch to some lighter wheels to see if it helps. Our field is also grass.

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Old 04-20-2012, 05:57 PM
  #390  
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Default RE: New Top Flite P-40 60 sized arf

Congrats on the maiden! As you probably know, the full scale was also prone to ground handling issues too....taxi and landings will take some getting used to but a small tail wheel, closer to the fuse, and larger main wheels will help a lot in the taxi as the fuse sits at a greater angle relative to the ground... this setup takes a lot more to bring the tail up and over. Good Oleo struts help ground handling too!
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Old 04-21-2012, 05:00 PM
  #391  
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Default RE: New Top Flite P-40 60 sized arf

Thanks A.O, I am using the Robart strutsand 4" wheels,but I went with the stock tailwheel, Icould stand to move the CG back a little and add some tail weight. Imay also increase my high rates to get more elevator throw. Ihope all are getting out and getting some flying time in. We have had beautiful weather here but it's been rather windy also, we finally got some much needed rain and I hope we can roll the field this week.
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Old 04-21-2012, 10:17 PM
  #392  
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Default RE: New Top Flite P-40 60 sized arf


ORIGINAL: Aluminum Overcast

Me too.....a little bit about what I've been up to....

http://www.youtube.com/watch?v=2Uk0JNn5Rf4


See you at our PMAC warbird meet, CorsairJock! Bring some friends if you like!
Great video! Have you done a thread on making panel lines and rivets in monokote? You did a great job by the way!
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Old 04-22-2012, 01:12 PM
  #393  
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Default RE: New Top Flite P-40 60 sized arf

Sorry guys I know this is technically for the ARF, but I hope you don't mind if I share some pics / info of my kit built.

I purchased this plane as a finished / flown airframe at an auction a couple years back or more. When I actually got the plane home and had a chance to look it over, it wasn't exactly what I first thought (isn't that always the case) It wasn't terrible, but was certainly in need of a "re-do" I thought that would be the perfect time to fit the DLE 20 into it. With a bit of measuring and figuring, it ended up being a perfect fit / combination into the airframe. After modifications for the engine upgrade it was time to freshen up the exterior. The plane (previously built by someone else) was built heavy, the plane finished and ready to fly is right at 13 lbs. I wasn't too thrilled with that number, so a few weeks back for the maiden I was a bit un-sure of what the out come would be. Turns out the maiden flight went very well, better than I would have expected actually. The DLE 20 is certainly up to the task and more. Flaps had no major pitch change upon deployment....landing was fine (minus nose over on grass....which I read is not un-common) with the weight of the plane, I just need to remember to carry in some extra speed.

I haven't had a chance to get the 2nd flight on yet. I did make some minor adjustments to the plane / controls, but expect it to be a great flying plane once I work out those final tweaks and adjustments.
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Old 04-22-2012, 02:52 PM
  #394  
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Default RE: New Top Flite P-40 60 sized arf

NO problem on my end about being a kit, it's all good info. Nice job on the redo, Ilove the color sceme and nose art. Kudos to A.O on the video and rebuild of his P-40. Ialways figured I would redo mine after I bang it up some, assuming it survives.
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Old 04-22-2012, 02:58 PM
  #395  
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Default RE: New Top Flite P-40 60 sized arf

Some pics of my assembly and finished product.
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Old 04-22-2012, 03:07 PM
  #396  
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Default RE: New Top Flite P-40 60 sized arf

A few more
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Old 04-22-2012, 04:28 PM
  #397  
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Default RE: New Top Flite P-40 60 sized arf

Paint Boy - Please post pics of your DLE 20 in the nose. I am seriously considering goint this route on my Kit built P-40. I would be really interested to know the process for doing this. I built mine with a Saito 1.20 in the nose, but since it hasn't flown yet, I could easily convert it.
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Old 04-22-2012, 04:53 PM
  #398  
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Default RE: New Top Flite P-40 60 sized arf

Here are a couple pictures I have during the re-build / engine swap.

I went with the pitts style muffler in order to keep everything "in-cowl" As you can see the exhaust is just at the bottom of the cowl. I made an exit "ramp" that aids the exhaust exiting the cowl (after ground runs and the flight it stayed nice and clean on the bottom)

I also took the chance to mount the top cowl scoop with magnets. Under the scoop I place a nice access hole for adjusting the carb (works perfectly) Also you'll see I hid the fuel fill under there as well.
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Old 04-22-2012, 05:53 PM
  #399  
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Default RE: New Top Flite P-40 60 sized arf

paint-boy;
You did a great job on your P-40!!! Look back in this thread, and you will see one guy post how to have working cowl flaps on this bird. You have them already, plus I think he did a video of this on YouTube.
Now if you don't like your bird, I will be than happy to take it off of your hands!!!
Thanks for sharing and please keep us updated!!!
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Old 04-23-2012, 10:44 PM
  #400  
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Default RE: New Top Flite P-40 60 sized arf

Thanks Guys! I have been moving along on my additions. My scratch built exhaust and cowl flaps are pretty much complete now as is the wing and fuse (ready for paint & weathering) but before that happens I want to add a bomb drop so I'm reworking the belly area to make room for that. I could add a small servo to control them but my cowl flaps will just work off a simple spring/arm affair, keeping the flaps open at taxi, idle and at low speed but the air blast at higher speed will close them down. Kind of the same way the full scale flaps were used.


Nice work Paint Boy! I appreciate your effort in hiding all the model stuff and the paint work too....not to mention the re engineering for the conversions and changes you made.
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