Posts: 10
Joined: 9/25/2003 From: Dothan,
AL, USA Status: offline
I am just about finished, I have to put the guns and exhaust on I will most likely order the exhaust stacks from Tony Howard, I ran up the engine and found that the low side needle valve was bent to the point of non-adjustment. The engine ran great, I ran it with a 30:1 mixture for about an hour with the cowl off (on the rich side). I noticed that the throttle linkage had a short range and simply fixed that by decreasing the high point on the throttle curve to about 61% instead of 100%. I have adjusted all contraol surfaces to that of the book and found the CG to be about 1/2'' nose heavy...This might be good for a first flight, given what was written in this forum. I have had a lot of fun learning and building this model over the past year. This forum has been extremely helpful and for all I'd like to say thanks...This coming weekend, weather permitting, I will take it for a ride and let you know how it went....Thanks !
Are you using the Rev Master Ignition Module that comes with the Revo 50? I have this engine as well and will be using it in my TF P-51 that I am currently putting together with the fan, shroud, etc; I have heard of this Rev Master Module failing so I went ahead and got a CH Electronics Ignition Module, peace of mind for $80.
Yes I have the Revmaster and have not had any problems.....I better keep my fingers crossed
make sure you range test your plane because I noticed you had metal to metal contact on the choke.....Also be careful if you are to nose heavy your elevator will be less effective for landing.
Posts: 10
Joined: 9/25/2003 From: Dothan,
AL, USA Status: offline
Thanks for the tip, I did range test. I am using a Spectrum 9303 w/921 and dual receivers (one in front and one in back). I am using a 7.4 Volt 5200Mah battery on the radio equipment. I am using a 2000 MAh on the ignition. I have also used a voltage regulator for the radio euipment battery. Takes a while to charge, buts lasts a awhile on flying day.. Also thanks for the tip on the elevator, I will be careful....Where did your CG come out ??
Posts: 367
Joined: 9/5/2002 From: Houston,
TX, USA Status: offline
nickvenezia, good job on the plane! Where did you get the prop? Do you plan to fly with it or is it just a static prop? Coincidently, I am just finishing up the same plane, same type color scheme, same pilot, and going to test fly it this Sunday! Small world huh? Will post results soon. Paul
Posts: 382
Joined: 9/25/2005 From: Livermore, CA, USA Status: offline
I set my cg per the manual and it was fine. This is one sweet plane to fly and is a perfect transition to 1/4 scale. It is rock solid on final and is easy to land. It will also fly very slow for a medium size warbird. Top flight did a great job with this one. The airfoil is very forgiving.
Posts: 10
Joined: 9/25/2003 From: Dothan,
AL, USA Status: offline
Great Job on yours as well. It's nice to see the ghosts of Bill Whisner, and George Preddy are alive and well. As far as the four bladed prop, it is a 20-8 Zinger prop. I will fly first 10 or so flights with a 22-8 Single blade, then move to the 4 blade. I will be conducting RPM checks on the four blade and ensuring that I get the required power. Mac Hodges of Hodges Hobby http://hodgeshobbies.com/, uses these blades on his B-29. Good luck with your flight this weekend !!
Posts: 1496
Joined: 12/5/2005 From: Victoria,
MN, USA Status: offline
quote:
ORIGINAL: michel gravelle
Hi Kochj
Thanks for the heads up on the DA 50 and Keleo exhaust system . You are the first that i have heard of that has had trouble with this set-up . Or am I wrong on that remark ? I work on small engine for a liveing and the exhaust system takes a bite more care . I will be putting lock washers on every bolt . And to keep the vibration down , I will put a spring at the rear , inbetween the two exhausts , this will keep the vibration to a mimimum .\ Do you like trhe sound of youre set-up ?
Michel
sounds great... What springs are you talking about? I think that as long as you make sure nothing is touching the mufflers (firewall) everything should work out great... Sounds good... Kind of loud...but I would say the look is much better than a wrap around and it sounds better as well....
If I were to do anything different, I would use a prop spacer (extender from sierra giant) and have Kelo change the muffler to accomidate it.....
Or I would have just used a Rev 50, used the stock muffler and saved some monney!
_____________________________
Winning isn''''t everything, it''''s all there is.
I m sorry that I have taken so long to answer , but with grand kids , the home , work and other more important matters I ve been very busy , but now I have some time for me .
Okay ............ the springs are for when there is too much vibration in the system( or unite ) . I use them a lot in exhaust system they keep things to-gether and cut down on vibration , by keeping them tight . Think of snowmobles and moto-crosses and all terrain veiculs . they keep the exhaust system tight to the cyclinder head . But please .......... I was talking out of the top of my head . I get lots of ideas , some good , some bad and others that I shouldn t mention It was just a thought .
I have started my build , and what I have found out is bad news for me . I have done the first wing and found out that the webing on my wings are lenght wise of the wing . so what this means is that I will be doig the modification to the spars with ply-wood . I will do the three bays . Both forword and rear of the spars I will add ply-wood so that the wing does not twist . As Gary web has pointed out on page 51 , I believe that he has the solution , and I thank him very much for keep us modelers up to date . There are not a lot of people who are concerned , or he would not of taken the time to put it in the thread , WELL DONE SIRE , AND THANK YOU
I have added a picture , but as you can see it did not come out as I would of hoped , but you can see that the grain of the web is lenthwise of the wing . Sorry Topflite , but you are use to give out information just to make you look good . You know it and I know that the shear webs are installed wrong , and thats .... that . I suggest that you help youre fellow hobbyests and stop trying to hide what is wrong . I sent them an E-Mail stating the page number of this thread and they have totaly ignored it ......... to bad . Anyway nothing to cry over right ....... I m still happy with youre product , but why hide the fact .
Later
Michel
< Message edited by michel gravelle -- 5/27/2008 12:58:32 AM >
Ive started the modifications on the wing . What I found was this :
After removeing the top covering , it was easy to see that the application of the glue was very poorly done . A couple of the webs came out with absolutly no trouble at all , and there was only two webs that were in the correct dirrection . I m looking at this situation like this ............. it can not hurt at all with what I am doing . The added weight that I will install is very little and I have the advantage of doing it while it is neat and proper , not when it is in a damaged stat . And not only that , I will have much more confidence in the wing for those not so perfect landings
As mentioned Gary 9648 was right , and I will deffinatly pass on Garys modifications to others , its really worth the time .
Posts: 414
Joined: 1/2/2002 From: Enfield,
NC, USA Status: offline
I've got one I'm assembling for a friend. When I got to the wing flairings, I discovered that I had TWO LEFT flairings. Did anyone get two right ones? I'll trade. Billy J. 252-536-1622
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RE: TF 1/5 Scale P-51 ARF Assembly (1ST MISHAP!!!) - 
