<div style="margin: 0in 0in 10pt">I think I found a ducting material that will work for this project. It&rsquo;s available from <font color="#800080">http://www.ducting.com/</font>800-370-9152 I spoke with Josh and you can reach him via e-mail at [email protected]</div><div style="margin: 0in 0in 10pt">Very informative guy and most helpful. He found a 1 inch diameter high temp 1 inch ducting material that is insulated. Here are the specs and pictures.</div><div style="margin: 0in 0in 10pt"></div><div style="line-height: normal; margin: 0in 0in 0pt"><span style="color: black; font-size: 10pt">Construction: <u>Inner Layer;</u></span><span style="color: black; font-size: 10pt"> Double-ply silicone coated woven fiberglass fabric hose construction with a spring steel wire helix. </span></div><div style="line-height: normal; margin: 0in 0in 0pt"><u><span style="color: black; font-size: 10pt">Outer Layer; </span></u><span style="color: black; font-size: 10pt">Single-ply neoprene impregnated polyester fabric hose construction reinforced with a spring steel wire helix. </span></div><div style="line-height: normal; margin: 0in 0in 0pt"><u><span style="color: black; font-size: 10pt">Insulation</span></u><span style="color: black; font-size: 10pt"> 1-inch fiberglass insulation (R-value=4)</span></div><div style="line-height: normal; margin: 0in 0in 0pt"></div><div style="line-height: normal; margin: 0in 0in 0pt"><span style="color: black; font-size: 10pt">Product Features:</span></div><div style="line-height: normal; margin: 0in 0in 0pt"><span style="color: black; font-size: 10pt">* Insulated Industrial dryer hose</span></div><div style="line-height: normal; margin: 0in 0in 0pt"><span style="color: black; font-size: 10pt">* Combines flexibility with minimal heat loss</span></div><div style="line-height: normal; margin: 0in 0in 0pt"><span style="color: black; font-size: 10pt">* Suited for air handling applications at low positive and low negative pressures</span></div><div style="line-height: normal; margin: 0in 0in 0pt"><span style="color: black; font-size: 10pt">* Good flexibility</span></div><div style="line-height: normal; margin: 0in 0in 0pt"><span style="color: black; font-size: 10pt">* Excellent external abrasion and chemical resistance</span></div><div style="line-height: normal; margin: 0in 0in 0pt"></div><div style="line-height: normal; margin: 0in 0in 0pt"><span style="color: black; font-size: 10pt">Applications: </span><span style="color: black; font-size: 10pt">Recommended for industrial air movement &amp; fume control applications.</span></div><div style="line-height: normal; margin: 0in 0in 0pt"></div><div style="line-height: normal; margin: 0in 0in 0pt"><span style="color: black; font-size: 10pt">Temperature Range:</span><span style="color: black; font-size: 10pt"> <u>Inner layer</u>; - 65 F to + 550 F, intermittent to 600 F</span></div><div style="line-height: normal; margin: 0in 0in 0pt"><span style="color: black; font-size: 10pt"> <u>Outer layer</u> - 40 F to + 250 F</span></div><div style="line-height: normal; margin: 0in 0in 0pt"></div><div style="line-height: normal; margin: 0in 0in 0pt"><span style="color: black; font-size: 10pt">Sizes I.D. (inches):</span><span style="color: black; font-size: 10pt"> 1, 1.5, 2, 3, 4, 6, and 8 Inch I.D.</span></div><div style="line-height: normal; margin: 0in 0in 0pt"></div><div style="line-height: normal; margin: 0in 0in 0pt"><span style="color: black; font-size: 10pt">ID Tolerances: </span><span style="color: black; font-size: 10pt">-0.00 to + 0.125 Inch</span></div><div style="line-height: normal; margin: 0in 0in 0pt"></div><div style="line-height: normal; margin: 0in 0in 0pt"><span style="color: black; font-size: 10pt">Standard Length:</span><span style="color: black; font-size: 10pt"> 12 Feet, custom to 25 Feet</span></div><div style="line-height: normal; margin: 0in 0in 0pt"></div><div style="line-height: normal; margin: 0in 0in 0pt"><span style="color: black; font-size: 10pt">Standard Colors: </span><u><span style="color: black; font-size: 10pt">Inner layer;</span></u><span style="color: black; font-size: 10pt"> Iron Oxide Red, <u>Outer Layer;</u> Black </span></div><div style="line-height: normal; margin: 0in 0in 0pt"></div><div style="line-height: normal; margin: 0in 0in 0pt"><span style="color: black; font-size: 10pt">End Finish:</span><span style="color: black; font-size: 10pt"> Plain Cut </span></div><div style="line-height: normal; margin: 0in 0in 0pt"></div><div style="line-height: normal; margin: 0in 0in 0pt"><span style="color: black; font-size: 10pt">Weight:1.92000 oz per ft</span></div>

Fred:

Sorry, I suppose this is a classic example of too much over too short a time frame. :^)

The "ideal hole diameter" in the firewall must be (3) three times the inlet area of the smile inlet on the front of the cowl.

The ducting cross section "area".... mean cross section back to the air exit has to be equal or greater than (3) three times the inlet (smile opening) area. Anything less will typically result in eddy of the air flow with minimum exchange of air in engine compartment.

<div style="margin: 0in 0in 10pt"><div style="margin: 0in 0in 10pt">Ed, Not to be repetitive but I want to make sure we are on the same track.</div><div style="margin: 0in 0in 10pt">The flat surface area of the smile inlet in the front of the canopy is 2.25 sq inches.
3 X the area will be 6.75 square inches of opening in the firewall.
6.75 square inches = 2.9318 diameter
So if I decide to do this I have to have 3 inch's of diameter on the firewall available to cut outto accommodate properairflow.

</div></div>

There should be a baffel constructed to direct the air flow from the smile across the surface area of the engine head (typically this would be the finned area). The hole in the firewall would be between 2.75" to 3" diameter directly behind the engine head. Flexible hose of approximately 3" diam will extend between the firewall and the dump door.

It is expected that the flexible hose will be compressed somewhat by the cockpit floor between floor and the upper surface of the wing. This area can be bi-focated to assure adequate volume of air passing between firewall and dump door if required. Given the flexible hose it light weight and flexible enough it may not be necessary to bi-focate. This is of course dependant on the depth of cockpit kit you may or may not have. The Byron "cockpit tub" can be altered to provide adequate clearance between wing and cockpit bottom....the pathway of the flexible hose(s).

Ok boys, I found some real good answers to some long asked questions. Here is what I found tonight. No reduction drive, 24 inch 4 blade working prop P-51
He is with the Pomona Valley Model Club. This ship was clocked at 120 mph and he has lots of flights on it. Lots of power and sexy as hell.


<u><span arial="" rounded="" mt="" style="font-family: "><font size="3">Richard Smiths P51</font></span></u><span style="font-family: ">

</span><span style="font-family: ">Frank Harris did the building and cockpit work. This man is truly a master builder with attention to detail like you wouldn't believe. He builds many airplanes and cockpits for club members. Frank enjoys the work so what can I say.</span><span style="font-family: "><o></o></span></p>

<span style="font-family: ">I made the mistake of keeping track of the cost of everything when building this bird right down to the last item. Not including what I paid for labor the total was nearly $6,000. </span><span style="font-family: "><o></o></span></p>

<span style="font-family: ">This is a READY TO COVER top flite giant scale mustang. Fiberglassed and painted. It has the new DA85 gas engine with the SOLO variable pitch propeller system. KELEO scale exhaust system. Eleven JR 8711 servos. Two 4500 ma batteries. Sierra Giant scale retracts. Scale 5 inch aluminum wheels. 2 inch retractable tail wheel. 32 oz fuel tank. JR spectrum 9 channel receiver with two satellite antennas. JR 9303 spectrum 2.4 radio. Airplane weighs 32 lbs. </span><span style="font-family: "><o></o></span></p>

<span style="font-family: ">Flies real nice and sounds great in the air. I have around 20 flights on it now. My knees still get a little weak on the pilots stand. This is a lot of $$$ in the air for me. Each flight is getting a little less dramatic. Again I want to thank my BEST FRIEND, FRANK HARRIS for his patience with me when building. Great job. </span><span style="font-family: "><o></o></span></p>

Fred:

There were four of these at Bomber Field this weekend. The largest engine was a 52. All four had Kleko's exhaust manifolds. All were two blade as well.

Hey Condor60

You've got a awesome toy started, can't wait to see the finished hardware spitin and spudderin in a vid somewhere! It was great to chat with you about your wishes and wants, your doing a great job!
This project brings back some old memories, as a mater of fact, two old memories!! [&o] Looks like I may be going through one all over again, YEE-HAW !
Keep us posted.
The Kissimmee Kid

<div style="margin: 0in 0in 10pt">Mouldmanfl, Thanks for all of the great tips, I have the wings together and retracts installed. I decided to install two aileron servos in the wing. It took me about three hours to make the frames and doors. I also glassed the inside on the wing for more retract strength.</div><div style="margin: 0in 0in 10pt">I am finishing up on the wood installation on the top of the wings and I will be ready to prep and glass.</div>

More Pictures

Fred,

In reference to #s 12 and 13 on your list of upgrades..I certainly agree that the reduction drive could use some tweaking..When I bought my kit, it didnt have the gear or the reduction drive, and I was able to go out and get used equipment..I bought both the gear and the RD from the same guy..He had a machine shop upgrade the RD with a lip behind the belt, as well as an extra brace..

The connection with the clamps seems to be the major issue with mine in terms of what will be likely casue of major vibration....Mine is only a 35, and I thought about going to B&B to get a 42..and considered asking him to do the swap and see if he would address the issue with the rubber hose and those two clamps..Id certainly be interested to know of someone who could address that..I havent spoken to B&B so Im not sure if hed do it..

Engine link to B&B..the only place I was able to find the Quadra.. http://www.bennettbuilt.com/index.html

Ive followed the scale warbird prop drive site but it doesnt look like its going to happen.. Also heat in the engine compartment was going to need to be addressed..looks like you found a good soluton.. http://www.warbirdpropdrives.com/30601.html

Also with the gear, mine has wooden blocks out the outter tabs with the gear up..I was told that this was a mod that helped with potential problems with the stock gear, however not sure what that was..(I wound up going with Sierra, as its much nicer and it was just about a bolt in..)

Heres a shot of the upgrades to the RD (so Im told as I never saw another one otherwise..)(and those two frame jarring clamps..) and the gear..

Pat

Wow Condor/Fred, neat stuff. Great to know you're in the hobby. I think I'll walk up the street and check all this stuff out. Then you can walk down the street and fly at my house. Not every day you find out someone is into the hobby this much and lives only 8 houses away. I guess I wasn't flying my planes high or loud enough. And I don't think I could let Harley the new yellow lab that close to mine. He would surely eat them!

Jim

<p class="MsoNormal" style="MARGIN: 0in 0in 10pt"><font face="Calibri" size="3">To all my P-51 brothers out there. I have come to the realization that this Byron 51 is not going to get built in a timeframe suitable for my needs. I have far too many obligations upon my time to complete this project. It is a wonderful model and I have put a lot of TLC into her but alas, I won’t have a chance to even think about working on it until late next year. I love the 24 inch 4 blade machine and hate to part with it but I wanted to give my fellow enthusiast the opportunity before I put it up for sale. Seems only fair to offer her to someone who would complete the project in the tradition it deserves. So, without any further adieu, this is where I am at.</font></p><p class="MsoNormal" style="MARGIN: 0in 0in 10pt"><font face="Calibri" size="3">Wing is completely constructed and glassed with 2 oz cloth for the center section and ¾ oz glass for the remainder of the wing.</font></p><p class="MsoNormal" style="MARGIN: 0in 0in 10pt"><font face="Calibri" size="3">Retract wells installed</font></p><p class="MsoNormal" style="MARGIN: 0in 0in 10pt"><font face="Calibri" size="3">Retract mounts installed</font></p><p class="MsoNormal" style="MARGIN: 0in 0in 10pt"><font face="Calibri" size="3">I have two sets of blades (total of 8)</font></p><p class="MsoNormal" style="MARGIN: 0in 0in 10pt"><font face="Calibri" size="3">Original Byron retractable tail wheel</font></p><p class="MsoNormal" style="MARGIN: 0in 0in 10pt"><font face="Calibri" size="3">Original Byron 180 degree retract servo</font></p><p class="MsoNormal" style="MARGIN: 0in 0in 10pt"><font face="Calibri" size="3">Original Q42 with 4 tanks of fuel through it. High and low speed jets are set but engine never flown.</font></p><p class="MsoNormal" style="MARGIN: 0in 0in 10pt"><font face="Calibri" size="3">Two mufflers</font></p><p class="MsoNormal" style="MARGIN: 0in 0in 10pt"><font face="Calibri" size="3">Updated version of the air retracts ready for install</font></p><p class="MsoNormal" style="MARGIN: 0in 0in 10pt"><font face="Calibri" size="3">Updated 2 Servo mounts with servo doors installed in the wing for ailerons</font></p><p class="MsoNormal" style="MARGIN: 0in 0in 10pt"><font face="Calibri" size="3">Byron reduction drive with break in video </font><span style="LINE-HEIGHT: 115%; FONT-FAMILY: "Verdana","sans-serif"; COLOR: purple; FONT-SIZE: 8pt; mso-bidi-font-family: Arial"><font color="#800080">http://www.youtube.com/watch?v=Uh8nwgm5lPk</font>

</p></span></p><p class="MsoNormal" style="MARGIN: 0in 0in 10pt"><span style="mso-bidi-font-family: Arial"><font size="3"><font face="Calibri">Ailerons and flaps built

</p></font></font></span></p><p class="MsoNormal" style="MARGIN: 0in 0in 10pt"><span style="mso-bidi-font-family: Arial"><font size="3"><font face="Calibri">This is the most completed Byron 51 kit you will find with extras not available with kit. All it needs is your radio and construction time.

</p></font></font></span></p><p class="MsoNormal" style="MARGIN: 0in 0in 10pt"><span style="mso-bidi-font-family: Arial"><font size="3"><font face="Calibri">$1500.00 plus shipping.

</p></font></font></span></p>

Condor,
I have followed this thread because I have a one piece wing (no reduction gear) Byron P-51 I'm still trying to finish. Anyway, I might be interested, but I think shipping the one piece wing to Colorado could be a problem. Any ideas?
Regards,
Mark

Talking about timing, I was just posting the 51 on the Buy and sell forum when your post came through. Give me a call to discuss.
704-221-6550
Fred Culbertson

I found a shipper called Forward Air. They are the cheapest ground carrier.

Hello,
I just bought a byron that was built by someone else. Would you still have the scanned copy of the manual somewhere so i can download it. Thanks for the help.
Vern