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Old 01-25-2016, 02:38 PM
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All New Dalton 300 SP Build Log

The 2017 Double Build of the now Production New Dalton 300 SP's starts of page 28, here is the link: https://www.flyinggiants.com/forums/showthread.php?t=192582&page=28
What follows directly below is our 2016 prototype build.


Today our T-Cart building team from last year of Ron, Ralph and I got together to start building two of the brand new Dalton 300 SP's. This will be the 21st Dalton/TBM Extra that I have built and the second for Ron. For those who don't know the SP (Special) were a few of the original 2 place, mid-wing 300's modified as a single place aircraft.


We have the first kits with many new modifications that Tony will be including in all future kits. The main difference is in the fuse construction, now instead of the stick cross bracing on the top and bottom of the fuse. It's now capped top and bottom with a one piece laser cut light ply, see photos. In addition to the top and bottom caps, the belly pan is now a one piece sheeted foam instead of the stringers used in the past. All this together should make for a very strong and stiff fuse.


Another new change is the cowl, now on the top each side slopes down and there is a center rise for the spinner. On the bottom cowl Tony has molded baffle. Also to note is all of the wing sheeting is 10" wide and the fuse sides are 7" wide, so only two sheet per side instead of the normal 4.


What we did today is weigh all of the sheeting and then split it up for each kit so they both started with the same weight. I always weight all of the sheeting when building so that the lightest weight wood is in the tail of the aircraft. We got the building board flat and level and then screwed the aluminum angle guides down. Tomorrow we will start the building of the motor boxes.


Tom
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Old 01-25-2016, 04:49 PM
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Subscribed! Can't wait to see the final schemes and maiden flights this Spring!
Ken
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Old 01-25-2016, 07:11 PM
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Old 01-25-2016, 08:15 PM
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nice
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Old 01-25-2016, 08:20 PM
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Old 01-25-2016, 09:46 PM
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This should be a sweet build. I can't wait to see the finished product!!!

Good Luck,
Matthew
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Old 01-26-2016, 09:18 AM
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Old 01-26-2016, 09:25 AM
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Well.... Tom.......
We are all waiting on you!
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Old 01-26-2016, 01:52 PM
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Worked on the SP's for two hours this morning before Ron had an appointment to make. We assembled and glued the two motor boxes glued together. Will be going back latter this afternoon for a few more hours of work. I have also included a few shots of the foam belly pan.


Tom
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Old 01-26-2016, 02:18 PM
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A double build,
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Old 01-26-2016, 06:47 PM
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Just got back from Ron's spent another 2 hours, so far just 6 hours total. Finished up both motor boxes with F1 and F2, and screwed the aluminum angle landing gear supports in to the hard wood interior braces.
Both motor boxes are now ready to be glued to the new one piece light ply top plate, this new top plate and bottom plate is great! The top plate ties into the top of F1 and goes all the way to the tail of the aircraft. All of the formers now just slip into their slots top and bottom so there is no need to use zillion speed square's to make sure they are lined up and vertical. Plus unlike before there is no need put the 1/4 x 1/4" sticks across each former or make all of the 1/4" cross braces as well.
The only modification we made so far has to do with F3, as it comes its solid with no holes other that the two lower servo tube holes. What I like to do is make the top of F3 a handle so when I pick up the finish fuse I use the F3 handle and the prop to move it from house to vehicle and such. So in the photo you see the handle hole and the addition of a single servo tube hole. When F3 is glued in place I also add 1/4 x 1/2" bass or spruce sticks in front and back of the handle hole for added strength and also sand the edges that come in contact with my hand a little round for comfort.
Another new way of doing things is how the upper tail structure is made, with the old kits this assembly was put together by itself, like the motor box, and then place it in position. Now it is assembled is position right over the top fuse plate. Like before there still is a longeron between the motor and tail structure, but it also will be glued to the top fuse plate.
Tomorrow is an off day, it's really tuff being retired....too many other things to do...


Tom
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Old 01-26-2016, 07:50 PM
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I'm in
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Old 01-26-2016, 07:50 PM
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I'm in
Rt on, we can build them together.
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Old 01-27-2016, 09:35 AM
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Tom,
What's your plan for sheeting the belly pan?


see you soon,
John
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Old 01-27-2016, 11:06 AM
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Quote:
Originally Posted by John Schroder View Post
Tom,
What's your plan for sheeting the belly pan?


see you soon,
John

Hey John good to hear from you, say hi to Tina,


Because we have the first two kits, something's have not yet come in as Tony is still getting them all together. Things we should have soon include 52" wing tube and phenolic, canopy assembly, horizontal stabs, new carbon fiber landing gear, plans and instructions.
So back to your question, it looks like we have three 1/16 x 10 x 48" sheets to work with for the belly pan, most likely only need two to make up the pan sheeting. It will be interesting to see how the sheeting will bend around those slight angle steps vs. say a normal turtle deck were there is a more constant curve. The picture below is what Tony sent me showing a sheeted belly, looks to me like a single piece because if he was concerned about having the balsa grain parallel to each transition you would see it in this picture.


Tom
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