1st Rubber Power model

Started by K K Iyer, July 20, 2018, 08:03:06 PM

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Glidiator

KK check out this link of the thread on soda can nose bearing.
I think even non registered guests can access it.
http://www.hippocketaeronautics.com/hpa_forum/index.php?topic=20755.0

Glidiator

Useful to have a Jewellers's nose plier - the one with rounded jaws to do such work.

Glidiator

Some pics to explain what I did to make a nose bearing from a soda can ring

This can be a viable alternative for the nose bearings that are being sold from the US.

Anant

Glidiator

Some more on Soda Can Nose Bearing

Some pics to show weight of the bearing and a comparison of size and weight with nose bearings made of aircraft aluminium I got from the USA that are used in used in F1D , Penny plane and Science Olympiad models.

My bearing compares well with them in terms of size and weight.

Making nose bearings can be a separate topic but since it is used in rubber powered models being on this page is useful and relevant.
Anant

Glidiator

Some more on Soda Can Nose Bearing

Pics showing comparative size

Anant

K K Iyer

Saw the details on hippocket. (I'm a member there too ;D)
But I fear this level of work is too fine for my capabilities.
(My daughter used to make books with written content and a stitched spine, the size of a thumbnail!)

I've only recently started on Peanut Scale...

Glidiator

Quote from: K K Iyer on February 07, 2019, 11:41:18 PM
I've only recently started on Peanut Scale...

Must get into scale FF models too. They are time consuming to build and need attention to detail. Some of them can also be difficult to trim to get decent performance. Nevertheless a good finished scale model with authentic colour scheme is a work of art.

K K Iyer

Druine Turbulent, Pilatus Porter and 1945 Iambus ...

Free Flight

Congratulations on a wonderful build. They look good! Wish you terrific maiden,if not already.
Cheers,
Free Flight

K K Iyer

@Free Flight,
Thanks. But these are not exactly new models...
Regards

Free Flight

Ouch, my bad. Sorry about that Mr. Iyer. Coming back to Free flights after a while. But they sure look good, any flight videos?

Glidiator

Quote from: K K Iyer on February 12, 2019, 12:50:37 AM
Druine Turbulent, Pilatus Porter and 1945 Iambus ...

Like the offbeat designs like Iambus.
Can you post the plan link — on Outerzone??
Check out the offbeat designs / plans of models by Bill Brown on HPA.
I have posted pics of his Yvette rubber power. An ideal model to convert to capacitor power. There is a topic on this in HPA.
My BOBNI awaits full power trials in a suitable space.

K K Iyer

Quote from: Free Flight on February 13, 2019, 08:40:00 AM
Ouch, my bad. Sorry about that Mr. Iyer. Coming back to Free flights after a while. But they sure look good, any flight videos?

Look up andiyerlko on youtube (that's my wife).
Some nice videos there, incl a few free flight...
Regards

Free Flight

Thanks. Truly good videos, specially the jet landing not needing any net after all, but always be safe. Also loved your living room rubber powered scale flyer. I do that home too before I can get to the field, cannot resist.

You have a great flying field. Happy for you. A bit envious about that (..just joking). , my RC field is 3 miles away and my FF field is 40 miles away. So I fly FF at the local town soccer field/s. Have to fly at dawn and out by 8 as when kids come in.

Here is my soccer field video.

K K Iyer

#89
One does what one can.

http://www.rcindia.org/free-donations-and-sweepstakes/can-small-cash-prizes-encourage-attempts/msg298081/#new

We have a new airfield, but posting that here would divert this thread too far afield...
See "RC Aiport, Indore" thread

Glidiator

Hi all
Back after a bit of an haitus.
Check this link for some useful info on wing design.

http://www.razvanapetrei.com/reasons-behind-the-shape-of-aircraft-wings/

By the way has any one used "Paulownia wood".
It is also very light and very stiff and strong. Heavier than balsa but much stiffer. Ideal for fuselage of catapult gliders and other categories.
Got some sample sheets from a China supplier.
Sheets I got are 1 mm, 2 mm and 3 mm can get other thickness and rods dowels etc.
Used for boats models and architectural models too.

Glidiator

Hi all,

Managed to get back to doing a bit of construction.
This one is a old design. A delta flying wing model called the "Flailing Arrow ".
It is a torqueless and tailless model.
It has two props - front and back and the elevon runs the whole length of the trailing edge.
Have use "Paulownia wood" for all components.
Some pics of the build. Fuselage stick, props and elevons to be added.
Will post better pic of plan.
I think it will be a challenge to trim it for stable flight and get satisfying duration.
Await further updates.
Anant

Glidiator

The pics don't seem to have uploaded properly. Trying again

Glidiator

One pic went thru.
Trying others agsin

Glidiator

What the finished model should look like

Free Flight

Arrow build is looking great. Please kindly share the trimmed out flight video at your convenience. Looking forward to it.
PS: indoor flyer, i am guessing?

Glidiator

Hi
Build getting along well. Prop blades put on cylinder for getting helical curve.
Covering done with very thin grocery bag plastic.
Glide without props — only motor stick with nose weight seems good.
Will post pics
Anant

Glidiator


Glidiator

Some pics of the build progress of Flailing Arrow

Glidiator

The Flailing Arrow completed
A bit of jugaad for the prop hubs, used the Ikara prop shaft and hub cylinder, did not have the nose ring so tired it down to motor stick. not too neat but does the job well.
Test flights in drawing room quite encouraging.
Full test flights in indoor space asap.
Some pics
Anant