New version of Peter Russell's 1968 "Striker"

[esc]

Hi guys,

This is my latest project. It is my effort at re-scaling and electrifying Peter Russell's (RCM&E fame) "Striker" pattern plane from 1968.

I am scaling it down to 48" wingspan and creating a lightweight structure that has all the features of the original, aspect ratio, split flaps, tricycle undercarriage and of course the look. I am having problems my tail draggers on the rough field I fly from so I got to thinking and nostalgia kicked in, this is the result.

Obviously I have a lot of work to do yet but I will try to post my progress as often as I can.

Regards,

Dave

[Spooky]

Looking good so far esc, the "New" Striker should make a great addition to your fleet, heck, I'll be tempted to build one if you decide to kit it when your done. (not to rush you or anything )

Subscribed!
Dean

[esc]

Hi Spooky,

A kit - gosh the thought never entered my head! I suppose it is something I might look at in the future but I don't know if I could make the idea reality or not.

Is kitting of personal designs something that happens fairly frequently in the U.S. ? I am not aware of many people doing it here the U.K. True there are some small companies with their own designs and laser and CNC cutting workshops are getting more prevalent.

The main drawback for me I would think might be that I don't have a proven track record in any aeromodelling magazines and breaking into the commercial market might not be that easy.

Another thought might be: If the design is successful and some of you would like to build it people like rcpilot82 with his home built CNC machine might provide cut components upon request - a short kit. You would have to ask him if he would be willing to do that. I know he is thinking of working from home using his machinery.

Regards,

Dave

[Spooky]

	Quote: Originally Posted by esc
	Another thought might be: If the design is successful and some of you would like to build it people like rcpilot82 with his home built CNC machine might provide cut components upon request - a short kit. You would have to ask him if he would be willing to do that. I know he is thinking of working from home using his machinery. Regards, Dave

Yeah, that's what I was thinking, a short kit, and maybe rcpilot82 would be willing to do the cutting if we get a few people who what one, to make it worth his while. Anyway, we can work that out after your done... no rush esc.

Dean

[esc]

This one is proving slighttly problematical at the nose end - I am not happy with the shape transition and may re-think the fuselage over the weekend.

Dave

[rcpilot82]

Looks good Dave!, cutting some short kits wouldnt be out of the question if dave wants. I can only ship in US though.

[esc]

I didn't like the fuselage so I went back and created another one without all the complications of lofting, modifying surface tangency, etc.

Here is the result. I think it is an improvement?

Guy's I might have to put this project on temporary hold come Monday as I might be getting a big design job in (fingers crossed). So it may be a few weeks before I post any more progress. I will try and get some more done this weekend though.

Dave

[Spooky]

We'll wait for you esc.... Gotta pay the bills first... and I think she does look better, not that she looked bad to begin with.

Dean

[esc]

Thanks Dean,

I got a little more work done tonight but that's probably it for a while now. My wife has me booked for strimming the grass tomorrow - I'm praying for rain

Have a good weekend.

Dave

[Spooky]

I found another airfoil Sim for you to check out called Airfoil Design Workshop, didn't check the price, but here's a link http://www.tdmsoftware.com/afd/ .... they have a demo version.

Dean

[esc]

I found a little spare time this evening so the wing is taking shape:

Dave

[esc]

Thanks Spooky but I bought a copy of Profili. It is pretty good but I discovered that symmetrical sections were not exactly symmetrical - very, very close indeed, but just not 100%. I split the section, mirrored it and that is what I used to generate the wing shown above. It took a heck of a lot of guess work out of the equation and it does generate smooth shapes.

In the end I decided to use the NACA 0012 12% symmetrical section which should given me pretty good wind penetration as well being excellent for aerobatics.

Thanks for taking the trouble to post the information. I will have a look at your link.

Dave

[esc]

A bit more work done. I have to create the wing tips, sheet the centre section, create the split flaps and embed the aileron servos and then I can move onto the tail and fuselage.

[Spooky]

Looking good Dave .... one thing, are you planning on putting all those holes in the wing sheeting, or is that just for show so we can see everything? Just curious is all... you know I had to ask, being the pain in the arse that I am. He he.....

Dean

[esc]

Yes I am Spooky and no they are not for show - I intend having the parts for the prototype laser cut and so can afford to put the lightning holes in. If you wanted to build one by cutting the parts yourself you could just leave them out.

I will be applying lightning holes to the ailerons too

I've got a little further with the wing but will probably have to leave it at that for now.

Dave