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Start to finish CJM HE-162 build. - 2/26/2006 4:23:10 AM   
carlbecker



Posts: 1613
Joined: 7/29/2002
From: Fairfax, VA, USA
Status: offline 		It very dangerous to surf the web looking for airplanes.

I had to knock a plane off my build list to make room for a HE-162. What an odd ball, I love it. I found some plans and books and a Revell model. Then I emailed Bruce at CJM several times with questions about his kit. I though about which to build plans or kit and decided to go with the kit because this is my first DF and I did not want to waste 150 hours doing it wrong. I thought the price was reasonable also. This is going to be more assembly then build. This kit builds in about 50 hours, I will take longer of course.

I have decided which plane to model. GetStencils will make all the artwork. I will use WarbirdColors primer and Nelson Hobby paint. I found a used BVM .91, pipe and fan for power.

So far what I really can not stand about this kit is the main landing gear. To me it just looks awful. Scale front wheel should be 3" and that is fine. The rear should be 5" but this kit recommends 3.5" wheels. I am going to try and modify the mains to be a bit closer to scale with 4.5 Williams Brothers smooth contour wheels and more scale angles. This will change the height in the rear so I will probably have to mess with the front. Looks like the front should be about a 100 degree rotation instead of 90 degree. I can live with that, just barely.

Carl


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< Message edited by carlbecker -- 2/27/2006 1:43:45 PM >
       Post #: 1

RE: Start to finish CJM HE-162 build. - 2/26/2006 6:24:34 AM   
Oberfeldwebel


 

Posts: 96
Joined: 2/27/2002
From: Round Rock, TX, USA
Status: offline 		Carl,
I will be following your build carefully, as I have the same kit. I purchased mine from a fellow club member who started it but did not finish. He looked for but could not find the plans, so I am left to do it alone. I know I could probably get a set from CJM but I'm cheap and prefer to do it this way. Actually, the formers are in place, the tail assembly is on and the landing gear plates are on also. The wings are sheeted and spars in place. So, what do you ask is left to do? Basically all the rest haha...The main source of my concern is the mounting of the fan unit. Again I say I will be looking forward to any more post about this build.
Here's how mine looks today.

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(in reply to carlbecker)
       Post #: 2

RE: Start to finish CJM HE-162 build. - 2/26/2006 7:33:15 AM   
bosssman


 

Posts: 307
Joined: 5/7/2004
From: Moreno Valley, CA, USA
Status: offline 		I hope that CJM HE-162 is better then the POS F-100 I purchased some time back. The glass work is terrible - heavy and poorly formed. The "wood" in the kit is something you would expect to buy off the rack at Home Depot and the foam cores could have been cut MUCH MUCH better. Luckily for me, I got a "bargain" off the RCU marketplace from a guy that paid full CJM price and finally got disgusted with it and sold it to me fairly cheap. The one thing about a ducted fan/turbine model is WEIGHT - putting the CJM F-100 fuse on the scale next to my Yellow F-16 fuse is like placing a brick next to a block of foam. Fortunate for me, I have been building ducted fans since the early 1980s and I am fairly sure I can make a good sport flyer out of it, albeit with a lot of work.....

randy

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       Post #: 3

RE: Start to finish CJM HE-162 build. - 2/26/2006 5:42:09 PM   
BobH


 

Posts: 4348
Joined: 4/1/2003
From: Springfield, VA,
Status: offline 		Carl, a member of NVRC built one of those as a turbin trainer. He never flew it because of heat issues with the stab and sold it to another member. That member still has it and plans to retro fit a ducted fan into the plane.. When that'll be done I have no idea lol.
I watched a Video of it flying at toledo several years ago.. good luck with it..

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BobH.

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RE: Start to finish CJM HE-162 build. - 2/26/2006 6:06:02 PM   
Oberfeldwebel


 

Posts: 96
Joined: 2/27/2002
From: Round Rock, TX, USA
Status: offline 		I agree with bossman about the F-100, I was disappointed in the finish of the fuselage and while the wood was OK to me, the instruction sheets were very poor. This was my first DF and while I finally got it finished, it did not last long. On the first takeoff, it started to rise off the runway nicely, when it pitched straight up climbed to about 50-75 ft and nosed over and crashed nose first on the runway. Totalled, write-me off....I'm sure the Cg was right on and everything else checked out, battery, radio and the engine was running just fine, so I'm still not sure what happened. I think one of the flying stabs may have failed somehow, causing it to pitch up like it did and then I had no control over the pitch axis.

Carl, could you just tell me where the CG is supposed to be, thanks very much

(in reply to BobH)
       Post #: 5

RE: Start to finish CJM HE-162 build. - 2/26/2006 9:46:37 PM   
carlbecker



Posts: 1613
Joined: 7/29/2002
From: Fairfax, VA, USA
Status: offline 		So far this seems to be a decent kit. The plans list the CG from the leading edge as 2 7/8 - 3 7/16 all most 3.5 inches.

Currently I'm making new mounts for the mains to correct the angle. The Axles are angled for the plans angle so this will be off from scale.

Carl

(in reply to Oberfeldwebel)
       Post #: 6

RE: Start to finish CJM HE-162 build. - 2/27/2006 4:23:30 AM   
Ram-bro


 

Posts: 2005
Joined: 1/22/2002
From: Bennington, NE, USA
Status: offline 		Carl, glad you are doing this kit. This is something unusual from the other jets out there. I didn't know you were ajet guy. Welcome to the 2% club.......I am assuming you are making this the DF version.

(in reply to carlbecker)
       Post #: 7

RE: Start to finish CJM HE-162 build. - 2/27/2006 4:25:04 AM   
ho2zoo



Posts: 687
Joined: 3/1/2002
From: Louisville, KY, USA
Status: offline 		Oh man. I got the HE fever now. I actually had the CJ kit a few years ago but sold it to help pay for my wedding. Sigh. Well, I'm going to get another one soon...

Carl, If this helps with your landing gear troubles. I'm pretty sure I read somewhere that the He-162 used the same landing gear as an ME-109, just mounted differently. They did it to save time at the end of the war. I may be wrong, but there you go...


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RE: Start to finish CJM HE-162 build. - 2/27/2006 4:58:11 AM   
lrb75


 

Posts: 429
Joined: 7/23/2002
From: Alexandria, VA, USA
Status: offline 		Bob I will finish the HE-162 when you finish your SE5a. I had to spend some time fixing the tail where the turbine had warped the fiberglass and melted the plastic tail cone. But mostly I just don't spend enough time building to make any progress. My biggest dilemma is the paint used is not fuel proof. I have tried using Nelson's flat clear but now I have to figure out how to get rid of a few drips and runs on the wings. I basically suck at paining anything. I also have no where to paint until spring. I also have to figure out how to remove the hardwood rails that the turbine was mounted on without destroying the fiberglass so I can put my fan unit in. Mine has the scale main wheels from Glennis they are at least 4" dia. The fan unit is mounted on about 1.5"x1.5" x 1/4" ply blocks epoxied into the sides of the nacelle. Cut off the mounting lugs of the fan housing and then use long screws through the ply blocks. These screws replace some of the original fan housing screws and go all the way through the fan housing. I bought the plans and instructions from CJM for about $30. Well worth it to see how some things are laid out. Good luck.

(in reply to ho2zoo)
       Post #: 9

RE: Start to finish CJM HE-162 build. - 2/27/2006 1:41:23 PM   
carlbecker



Posts: 1613
Joined: 7/29/2002
From: Fairfax, VA, USA
Status: offline 		Well I am not a jet guy yet. This is a first and the only reason is because of this airplane, though I do like the Me-262, Mig-15 and F-86. I usually stick to late 1930's very early 1940's.

I have documentation that discuss's the LG being Me-109. My issues with the kit are that the gear is splayed out far to much and the main wheels are 1.5 to small. That and the axle is designed for the greater angle. I assume its to help ground handling. For me it just ruins the look sitting on the ground. I have discovered that if scale angles are followed it would be possible to get a 5" wheel inside the fuse. That is something to consider if I build another from plans with Robinaire gear. I want to keep this fairly simple since DF is new for me.

The glass fuse seems very light but the tail section feels heavy. I don't know how all this will effect the CG but with long moments front and back I don't think I will be adding much if any lead. Since I have raised the center section by changing the LG angles and adding a bigger wheel I will be looking at making the nose gear taller. I think I can raise the front about 1/2 inch.

I think its a good idea to get the instructions and plans to finish this model. It helps considerably.

lrb75 I would love to see this other local He-162.

Carl

(in reply to lrb75)
       Post #: 10

RE: Start to finish CJM HE-162 build. - 2/28/2006 12:00:27 AM   
lrb75


 

Posts: 429
Joined: 7/23/2002
From: Alexandria, VA, USA
Status: offline 		Where do you fly? NVRC? The plane was orginally built by Brian Shipp I you know who he is. I will have it out and flying at some point. I need to get something flyable for Warbirds over Delaware. Now you made me mad. I measured the wheels and they are 3 1/2". And they do look small. I would have never even noticed but now it will bother me.

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       Post #: 11

RE: Start to finish CJM HE-162 build. - 2/28/2006 4:40:32 AM   
carlbecker



Posts: 1613
Joined: 7/29/2002
From: Fairfax, VA, USA
Status: offline 		Currently I fly at CCRCC in Waldorf. I had flown down at the FARM and before at Pohick Pilots Assoc at Fort Belvoir which closed. I have not been to NVRC in years and now it looks like you are closed. I live near Fairfax Circle. If you would like to hook up send me a PM, I would love to see yours. I will be at WOD in July for the 3rd straight time.

Not sure if its good or bad but I looked over the plans VHM or something like that from ScaleRC in Maine pretty closely and I have 5 books on the HE-162 so I had a pretty good idea about major problems with the scaleness of the CJM. I don't plan this to be anything more than sport scale but I'm getting worse in what I can tolerate .

I have managed to get 4.5 wheels to fit. If I had had Robinaire make scale gear I'm quite sure narrow 5 inch wheels would work. Currently the axle angle is off a bit and if corrected would allow the wheels to fit flatter in the fuse. I have managed to raise the nose about 3/4 of an inch. I was concerned about the wing incidence while on the ground. I measured the new wheel placements on the plans then drew a ground refference and leveled the plans at ground. The wing is positive in relation to the ground so I think I am OK.

There is a lot wrong with this kit for competion without getting the 3 view out to measure things. The aileron and flaps are hinged in sport style not recessed in the control surface. The rudders are one piece instead of top and bottom split. Thats a big no-no on the side view. I don't think the elevators are proper either. Of couse the hinges are not recessed. I had not planned to corret these things, but I may have to do something about the hinges. The Dave Platt Zero has really made an impression on me about items like this. With a fiberglass fuse and foam core wings the build will be quick so I might fix up the hinging.

I guess with what I have so far changed the warranty is gone and I'm on my own

Carl

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(in reply to lrb75)
       Post #: 12

RE: Start to finish CJM HE-162 build. - 3/1/2006 1:49:44 AM