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Old 12-20-2011, 03:55 PM   #1
Northern Bolt
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Hey all,

So from my user name and previous posts I was interested in building a skybolt (the culp special specifically). I was talking with a friend of myne about skybolts and other nostalgic biplanes when he casualy mentioned that he had a partially completed starduster in the hanger if I was interested. I did some reading about the starduster and came to the conclusion that it would make a nice project.

While I was discussing the project with him I made a deal on a Jacobs radial to power it. I know they are very heavy for the power but with fuel injection and other upgrades they can put out over 300hp easily. The question I have for the forums is "what is the definitive guide to putting a radial engine on a starduster?" I have read Jerry's site end to end and found it to be a very valuable resource. Any direction or suggestions are most welcome.

Cheers,
Adam



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Old 12-20-2011, 05:15 PM   #2
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I am partners in building a Starduster with A R-755 - Has been ongoing now for 10 yrs. & we promise to put it on the front of our priority list (right after the Laser gets finished...) All we need is time & money.Wings are done & 3 of 4 are covered & in silver. Fuse is done, motor hung, sheet metal almost done. Systems are next (90% done 90% to go!)In a word, make as short of an engine mount as you can (& still get the starter out of the back). Locate the battery behind the cockpit. We also went to a Grove style aluminum gear. Found a cowling from a T-50 (which is what the Jake is from). It will end up being a heavy plane & certainly not for hard acro (Starduster never was anyway). I ran estimated weight & balance numbers & came up with an empty weight of +/- 1490 lb.I can send the Excel file for your review. I will see about getting some photos posted. Feel free to PM me with any questions



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Old 12-20-2011, 07:32 PM   #3
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Welcome aboard Doug. Nice set of air machines. Look forward to pictures.

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Old 12-20-2011, 09:05 PM   #4
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Radial engined Dusters do look good. Here's one with a Warner.

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Old 12-21-2011, 01:02 AM   #5
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There are a few good examples of radial powered Stardusters. I'd say you made a good decision. I'm building an Acroduster Too, when I'm not working on the Laser.

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Old 12-21-2011, 03:40 AM   #6
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Wow that one looks sweet! I love the cowl bumps! I would love to see the excel file. I am going to start a thread for the build so you all can follow along.

Adam

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Old 12-21-2011, 09:16 AM   #7
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How much useful load are you left with after installing a radial and ending up at 1500# empty? Is it still a practical airplane?

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Old 12-22-2011, 09:01 PM   #8
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<div style="margin-left: 0px; margin-top: 0px; margin-right: 0px; margin-bottom: 0px; border-top-width: 0px; border-right-width: 0px; border-bottom-width: 0px; border-left-width: 0px; border-style: initial; border-color: initial; border-: initial; ">
<div style="margin-left: 0px; margin-top: 0px; margin-right: 0px; margin-bottom: 0px; border-top-width: 0px; border-right-width: 0px; border-bottom-width: 0px; border-left-width: 0px; border-style: initial; border-color: initial; border-: initial; ">Here are some pics. Sheet metal, seats, , floorboards, wings etc. are at a different shop. <div style="margin-left: 0px; margin-top: 0px; margin-right: 0px; margin-bottom: 0px; border-top-width: 0px; border-right-width: 0px; border-bottom-width: 0px; border-left-width: 0px; border-style: initial; border-color: initial; border-: initial; "><div style="margin-left: 0px; margin-top: 0px; margin-right: 0px; margin-bottom: 0px; border-top-width: 0px; border-right-width: 0px; border-bottom-width: 0px; border-left-width: 0px; border-style: initial; border-color: initial; border-: initial; ">
<div style="margin-left: 0px; margin-top: 0px; margin-right: 0px; margin-bottom: 0px; border-top-width: 0px; border-right-width: 0px; border-bottom-width: 0px; border-left-width: 0px; border-style: initial; border-color: initial; border-: initial; ">
<div style="margin-left: 0px; margin-top: 0px; margin-right: 0px; margin-bottom: 0px; border-top-width: 0px; border-right-width: 0px; border-bottom-width: 0px; border-left-width: 0px; border-style: initial; border-color: initial; border-: initial; ">
<div style="margin-left: 0px; margin-top: 0px; margin-right: 0px; margin-bottom: 0px; border-top-width: 0px; border-right-width: 0px; border-bottom-width: 0px; border-left-width: 0px; border-style: initial; border-color: initial; border-: initial; ">
<div style="margin-left: 0px; margin-top: 0px; margin-right: 0px; margin-bottom: 0px; border-top-width: 0px; border-right-width: 0px; border-bottom-width: 0px; border-left-width: 0px; border-style: initial; border-color: initial; border-: initial; ">
<div style="margin-left: 0px; margin-top: 0px; margin-right: 0px; margin-bottom: 0px; border-top-width: 0px; border-right-width: 0px; border-bottom-width: 0px; border-left-width: 0px; border-style: initial; border-color: initial; border-: initial; ">
<div style="margin-left: 0px; margin-top: 0px; margin-right: 0px; margin-bottom: 0px; border-top-width: 0px; border-right-width: 0px; border-bottom-width: 0px; border-left-width: 0px; border-style: initial; border-color: initial; border-: initial; ">
<div style="margin-left: 0px; margin-top: 0px; margin-right: 0px; margin-bottom: 0px; border-top-width: 0px; border-right-width: 0px; border-bottom-width: 0px; border-left-width: 0px; border-style: initial; border-color: initial; border-: initial; ">
<div style="margin-left: 0px; margin-top: 0px; margin-right: 0px; margin-bottom: 0px; border-top-width: 0px; border-right-width: 0px; border-bottom-width: 0px; border-left-width: 0px; border-style: initial; border-color: initial; border-: initial; ">
<div style="margin-left: 0px; margin-top: 0px; margin-right: 0px; margin-bottom: 0px; border-top-width: 0px; border-right-width: 0px; border-bottom-width: 0px; border-left-width: 0px; border-style: initial; border-color: initial; border-: initial; ">As far as useful load with an empty weight of 1500 lbs; Its anexperimental &amp; we are planning to limit it to +/- 5 G &amp; gross weight at 2250 lb.

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Old 12-22-2011, 10:01 PM   #9
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Wow Doug that is some beautiful work! Is the engine mount custom? I also am leaning toward the grove gear as well is that the stock starduster gear they make? I have read up on the modifications to the fuse made by "crash" in the 1983 starduster magazine. Did you guys incorporate any of his changes into yours? I may have a line on a t-50 cowl as well, it may need cosmetic bumps though. Glad to see I am not the only one crazy enough to try this.

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Old 12-22-2011, 11:33 PM   #10
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Hey Adam... we're all crazy, aren't we ? Ain't it great !


The best with the Radial Starduster ! she's gonna look saaaaweet !


Doug... nice looking bird.
LOVE the look of that engine !

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Old 12-23-2011, 12:37 PM   #11
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We found a used engine mount 'ring' from a Jake, made a jig setting it 14 1/2 off the firewall &amp; then went from there. concerning gear mounts- fuse longerons were beefed with plates &amp; radius blocks.

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Old 12-23-2011, 01:08 PM   #12
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When you built the engine mount did you set up any down thrust or side thrust? If so how much and where...?

Looks great by the way

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Old 12-23-2011, 04:11 PM   #13
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Jerry; your site is great! I have been following your build for years. I think people who put flat engines on biplanes are crazy! I cant wait to see yours in the air. I really love the black and yellow scalloped paint scheme. Very classic! I am leaning towards the same idea, I like green and silver or black and red with a gold pinstripe. I have lots of time to work on that. I have just purchased a set of WWII gauges that I plan to install similar to Doug's set up. There is so much good info on here!

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Old 12-23-2011, 06:08 PM   #14
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Hey Adam... thanks for the kind words about the web site.


Yeah, giving it classic lines with the paint, and setting up the steam gauges like Doug adds to the experience. I plan on doing something similar with the gauges.


I just spent 2.5 hours today on finishing up notching the tubes for the main landing gear (for the second time.) I'll probably have them TIG welded up this time (none of that twisting like the last time.)


Doug, which -model Jake do you have ?


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Old 12-28-2011, 12:07 AM   #15
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Great to hear of another project. My dad has a duster with a 245 jake. We didn't build it but fly it regularly.

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Old 12-28-2011, 12:44 AM   #16
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I LOVE the look of your Starduster !!!
Any specs on it for us?
Weights ?
Cruise ?
etc ?

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Old 12-30-2011, 01:21 AM   #17
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EW:1750

GW:2500
Cruise:130mph
Stalls easy, flys great, Heavy for a starduster, not extremely aerobatic
245hp, 2b20 prop, Cessna L-19 gear, T-50 cowl and mount.

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Old 01-01-2012, 02:39 PM   #18
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Thanks for the posting the specs.

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Old 01-07-2012, 09:29 PM   #19
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Just saw this Starduster over on the IBA web site. Sure is pretty. The owner is Kevin Shaw in Woodstsck GA


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Old 01-07-2012, 11:23 PM   #20
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You can read more about this starduster on aircraft spruce web site forum under starduster!!

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Old 01-08-2012, 12:02 AM   #21
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They are all cool but the one with the Warner just looks RIGHT. Beautiful balance. I'm glad I don't have to maintain it though.

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Old 01-08-2012, 12:03 AM   #22
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Yep...the Warner is just the right diameter.

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Old 01-08-2012, 05:17 PM   #23
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Now if those guys in Australia would come up with a 200hp version.............

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Old 01-21-2012, 10:23 PM   #24
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<div style="text-align: -webkit-left;">I was looking at a Starduster Too, sans engine. Would a
Continental 220 work well on one? Does the airframe need beefing up fortheextra weight? ( I don't know why my font changed)



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