RE: CMP Kits – Problems and Solutions
 

Which of the CMP war birds and scale models fly well, and are built well?

RE: CMP Kits – Problems and Solutions
 

Does anyone have a suggestion how to seal down the covering on this model? I have the Giles 202-140 new and want to seal the covering prior to flying.

RE: CMP Kits – Problems and Solutions
 

anyone? The covering seems to be chinacote. I am not sure about the overlayed pieces.

RE: CMP Kits – Problems and Solutions
 

CMP 71" Zero (1.20)
Problem - it's an ARF, just kidding, really not a bad plane, purchased it from a guy in our club. I'm between builds and wanted something to play with. I not sure about the CG, right now I have the plane slightly nose heavy at 145mm, it flies tail heavy, a real handful to get it back on the ground. I haven't ran any calcs on where the CG should be (I only bought the plane yesterday), but I'll get to it in a day or so.
I don't have any other CMP planes, so I don't know anything about them, but just out of curiosity, have any of you guys with "tail heavy" planes cheched the incidence on the wing of hor. stab? I'm thinking it's off on the Zero, just checked it real quick, and the hor. stab. appears to have a negative incidence, like 1/2 to 1 degree. I need to carefully check it with more accurate instruments, but I think this might be part of the problem in my case.

I had to add A lot of weight to the nose, the plane came with a Webra 1.20, it pulls the plane around great. I've got a 25cc gas engine I'm thinking about sticking on it, if nothing else for the weight.

Has anyone else have any info, or experience with the Zero?

for what it's worth,
Mike

RE: CMP Kits – Problems and Solutions
 

I think you raise a very good point here.

However, the incorrect incidence of the main wing can be traced back to the manufacturer since they devised the construction process requiring that the builder drill the holes for the main wing in both the wing and the fuse.

I think this incorrect incidence could very well be the main problem causing these planes to fly tail heavy.

I will not buy another CMP product and I will do what I can to stop everyone I know from buying their crap also.

Good luck with your Zero.

RE: CMP Kits – Problems and Solutions
 

thanks for the encouragement, I very carefully checked the hor. stab. incidence, and it is negative 1.5 degrees. This explains the "tail heavy" flying chariteristics. I'll have to cut the stab off and re-attach it correctly. I've found a lot of bad set-up & assembly by the original owner.

I'll try to make as many notes as possible on the Zero setup, hope it helps somebody.

mike

RE: CMP Kits – Problems and Solutions
 

proulxlaw, i'm with you !! bought a CMP p-26 peashooter from alix @ ak last fall. i am now well into the "BUILD". so far i have added stringers inside the fues, re fiberglassed the inside if the nose clear back to the rear of the wing saddle, recovered the tail feathers and wing with century 21 fabric. now i have installed the supplied main gear and it looks very scary to me. it is about 2" back from the leading edge. i may have been born at night, but it was not LAST nite.... looks like i'll have to bend up my own gear now to prevent the "nose over" problem i've heard so much about...
i would never buy another CMP kit again !!!!!!!!!!!!!
it is much easier building a plane, than it is "rebuilding" these arfs...
hardware is junk, instructions are useless, quality is nonexistant, and price is not that great either !!!!!!!!!
i wonder how they fly ???
mike
ps: i think i'll bash another hog bipe from sig.

RE: CMP Kits – Problems and Solutions
 

Personally, if I knew before I bought the planes that others had problems with them, I would simply have avoided them all together. I have a .50 size zero that I can fix and put up one more time and I'm gonna lett my nephew shoot it down with his paintball gun. I will be taking a video of this if you guys are interested.

I could fix the plane so that it will fly again but as soon as I slow the plane down it will be uncontrollable like the other plane and the previous flights of this one.

I wouldn't waste your time fixing/building these planes. Sell them if you can and get one that has a proven record of other fliers being satisfied with their quality.

These planes s*ck so bad it's a wonder that they have sold so many.

I am likely going to buy a World Models .60 Zero. Check it out: http://ecsvr.com/abm/shopexd.asp?id=10

What do you guys think of this zero? Other builders have said that it's a great flier and builds easy.

Look at the .60 size not the GS Zero.

RE: CMP Kits – Problems and Solutions
 

i checked out your zero, looks like a foam wing and glass fues. i think i saw one of these at a warbird meet in pueblo last year.
if you have a 91 four stroke laying around, check out balsausa's eindecker. builds easy, and capable of mild aerobatics, if you add one more rib bay to the ailerons.
i think i'll check out their other kits, or just "bash" another sig hog bipe.
i'm done with ARF'S mike

RE: CMP Kits – Problems and Solutions
 

Ak-Models Rocks!!! Thanks for the free delivery on our Quest 50! We received them the next day by FedEx!! This was welcome after a very bad experience with a damaged kit, and the lack of customer service from a vender from California.

So far, The quality of the actual Quest 50 seems great. The covering is far better than what I can do, and I have seen very , very few covering jobs better than this. The laser cut joints are all tight, and seem to have ample glue. The carbon fiber gear are not only great looking,but seem robust enouph for a sixty! The fiberglass cowl's finish is very nice. The stripe needs a little help to align to the corresponding stripe on the fuselage, but.... still looks great!


So far, the real drawback is not so much the method of illistrations, they would be great if the hardware reflected that to which the drawings call out. The 4mm screws for the motor mount are way too long, as well as for the gear. The motor location is a bit confusing with the four alignment lines on the bulkhead. Two of the lines are where the actual center of the prop hub should be after shimmed. Just show the two that we need to mount the motor, and shimmed as per drawing, the motor will be where it needs to be. If you place the motor mount where it needs to be, the upper flange is well above the firewall, and the T-nuts will not work on the top left corner, due to no edge distance. Oh well.... no biggy.

I am having fun with this project. Even with what seems to be the "first run" blues. This is one great looking plane that I am really excited about. My buddy test flew his last week, and he really likes it.

My Saito .82 should be very happy pulling this "Beauty" around. It looks as if she will be around 5lbs 4oz. Not too shabby...

RE: CMP Kits – Problems and Solutions
 

o. k. so i just finished my CMP peashooter. with a saito 91 installed, moving the cowel forward 1/2 inch more, and reinforcing the inside of the fues with one layer of fiberglass back to the trailing edge of the wing saddle, this plane comes in at 10 lbs even, counting 27 oz of lead hung on the motor mount.
this seems way too heavy for me.
balance point is 105 mm back from the leading edge, and the gear was rebent to place the wheels 1.5 inches in front of the leading edge.
rx and 1100 Mah four cell batt pack shoved all the way up to the firewall.
question, will this thing fly ???
how much does yours weigh ???
mike

RE: CMP Kits – Problems and Solutions
 

has anyoune build & flown the CMP Sukhoi 31?

RE: CMP Kits – Problems and Solutions
 

AK-Models is great. I've had a couple of good experiences dealing with them also.

RE: CMP Kits – Problems and Solutions
 

So i am just finishing up my CMP Spitfire .90, I will be using the RCV.91CD in this model. Only problem I've had is the trailing edge on one of the wings is 3/16 shorter from the TE to LE, from the outer edge of the aileron to the wingtip. Hope this does'nt cause any probs. with flight charateristics. Sticks out like a sore thumb though.. Later Shane

RE: CMP Kits – Problems and Solutions
 

Forgot one thing, I am planning on using air retracts on this model. Does this plane require 85* or 90* retracts? I have looked at several threads reguarding this but it always turns into a pi----- contest and not a solution, what retracts will work with this model, i don't mind a little modding if needed i just want the best fit for this plane.

Thanks again Shane

RE: CMP Kits – Problems and Solutions
 

I recently purchased the Giles 202 90, 65" span from AK Models and Alex was very helpful with my decision. Received the plane, well packed and looks great. I have only a year experience with ARFs, but it looks well built to me. I will probably strengthen the fuse a bit, replace the heavy LG and replace some hardware. The covering is flawless ... Does anyone have any flying experience with this plane? Hats off to AK Models for customer satisfaction!

RE: CMP Kits – Problems and Solutions
 

Hello CMP users!
I bought a nice 61 inch Christen Eagle and top wing mounting is giving me a little work.
The lateral struts don´t fit because a 1/4 inch clearance separates them from the wing surface.
I could lower the top wing bending the metalic cabane struts but I prefered carve the wood where they attach the wing... I´m not happy with this solution... Have anybody minded any other way?? :D:D:D

RE: CMP Kits – Problems and Solutions
 

I use spring-air 85deg retracts on my spit. It gives them a little wider stance. You HAVE to beef up the mounts and cut them up a bit to make them fit. I'm on my second spit. The first one bit the big one when I flew thru the sun on a landing approach. Dumb dumb dumb. The 5 or 6 seconds I couldnt see it was enough to put it in a spin before I regained sight of it. The first one didnt give me any problems with the retract mounts that I moded. The second one gave me nothing but problems with the retract mounts. Not enough glue was used so I ripped out everything and built my own setup. Havent flown it yet, been too busy.
Edwin

RE: CMP Kits – Problems and Solutions
 

JoeVen: If you can post a close up photo of the problem. Some good advice will most likley follow. Need good photos first. thanks Capt,n

RE: CMP Kits – Problems and Solutions
 

Regarding balancing...I've used the GP CG rig to balance my planes, inluding a .40 seagull zero which, even with a TT .61, took 9oz of lead on the nose to balance to the book spec. It flew great and landed like a trainer, and was around 95mph until I tried some not so warbird like moves with it and ended up inverted about 10ft off the ground after a square loop and apparently I grabbed too much elevator and the engine sputtered on acceleration and it went in. It's a pile of sticks now. I've been looking around for a replacement since the seagull is hard to find, and I've been leaning towards the CMP model. I'd like the 120 size as it seems to have less problems, and my buddy has CMP/GSP corsair that size which would make for some neat dogfights, but pricing may send me towards the 50 size since I already have all the gear for it. Back to the balancing part... I've read in a few posts of people who use a plumb bob to find the cg of any plane. Apparently you suspend the plane from the wings and the tail, and let the plumb bob hang at the point that the whole plane is hanging from, and where the bob points is where the cg should be. Can anyone clarify this method and if it's reliable? Thx.

RE: CMP Kits – Problems and Solutions
 

Yes the "string" method is reliable and is great for larger planes.
http://home.mindspring.com/~the-plum...%20Machine.htm

RE: CMP Kits – Problems and Solutions
 

Does anyone know where to buy CM Pro kits? AK-Models is out of stock, and GSP is GSP, and they are out of the plane I would like.

RE: CMP Kits – Problems and Solutions
 

Problem with CMP Giles 202 50. I'm sure some of you have this model. Flies great!!! However, as I love the scheme of the covering, its quality is terrible. After ten flights, the covering has peeled back near the cowl, there is a rip on the right elevator and a tear on the left side rear of the fuze. It seems awfully thin to me. No way in he11 are you gonna match the covering!!!!
Going to hit it with a low temp iron to re-stick it back on but, it looks like I am gonna have re-cover this thing after the flying season is done. That is, if it lasts that long. Probably going to use Ultracote.

Dave...

RE: CMP Kits – Problems and Solutions
 

I have the Giles 202 1.20. The carbon fiber landing gear is a little weak and the way the canopy attaches is questionable as mine came off in flight twice. Both problems were an easy fix and other then that its a great arf. Lets hope the big P-47 thats on the way will be as good!!
Pat

RE: CMP Kits – Problems and Solutions
 

CMP modells Cessna 182 Skylane 40:
Here are some problems I have met. First of all Im impressed the quality of product (for that price)but also lack of quality control.The accessories-hardware pack has lots of missing items and some unnecessary items.
The wing tips- ready to glue- parts was not simmetrical ones but the same side ones.
The aluminium tubing for locking the wing halves and locking the wing to fuselage were totally absent.
The front wheel strut wire with coil is wrong design.Producing torque on landings.
Wheel pants s inside hardwood blocks was glued some misplace causing loose pants.
Wing strut end parts was missing.
The tank opening on the 2nd firewall isnt accept the tank with elastic padding.Needs sanding.
The screws in hardware pack has been some kind of soft material causing head -screwdriver problems.

Overall design and glassfibre fuse and price is great.
Thanks