Engine ( ASP 25) mounted with GFN mount: the wooden engine bearers are not used to accommodate the tank

Tank position

Firewall with blind nuts. I will be putting some triangular stock to reinforce

Tank fitment, 16 mm hole in firewall

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Pressure test the tank for leaks

Sirji,
I see that you're doing this test in your kitchen (Don't think you have a microwave in the workshop)
Hence this tip.
"Do not try to warm epoxy in a microwave after it is mixed."

But its ok to warm them in separate cupsbefore mixing
Regards

Quote from: K K Iyer on February 09, 2019, 07:52:48 PM
Sirji,
I see that you're doing this test in your kitchen (Don't think you have a microwave in the workshop)
Hence this tip.
"Do not try to warm epoxy in a microwave after it is mixed."

But its ok to warm them in separate cupsbefore mixing
Regards

Sir pardon my ignorance on this but what is heated epoxy used for

Quote from: Rooster on February 09, 2019, 10:05:37 PM

Sir pardon my ignorance on this but what is heated epoxy used for

There may be occasions when 5 minute epoxy is too quick and regular Araldite is too thick/ too slow.
And you don't have the thin Bob Smith 20 min Finish Cure epoxy.

That's when you have to put some Araldite epoxy in a small plastic cup, and hardener in another small plastic cup, and give them a little time in the microwave (like 10 seconds, not more)

Result - a thinner and quicker setting epoxy.
If you microwave it after mixing, it'll become a lump before you can use it.
Hope this helps...
Regards

Edit
Rai saheb,
Hope you don't mind this slight diversion from the main topic...
Regards

Not at all Iyer sir. Gyan is always good 

Thank you Sir for this insight. Never tried this before. Will try this method on next build

Fuse

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Stab

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Stab done

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Rai sir another good build from you i always like balsa and play construction

Thanks Gaurang

Some progress: the tail

Landing Gear installed

Wing mounting arrangement done. Could not use the original because the fuel tank fouls. In fact, because of the tank, I had to change the engine mounting from wooden bearers to a GFN mount, and this had a cascading effect in changes really extending this build

The original tank is 190 cc, oval, with the larger axis horizontal

@sanjayrai55
Sir, I rememberreading somewhere in Hanno Prettner's writing that even that thick fin leading edge has an experimentally found aerodynamic reason, like in the case of the anhedral stab...

Quote from: K K Iyer on February 17, 2019, 09:27:25 PM
@sanjayrai55
Sir, I rememberreading somewhere in Hanno Prettner's writing that even that thick fin leading edge has an experimentally found aerodynamic reason, like in the case of the anhedral stab...

No idea really. Just a very complicated build

Fitted in the Servos and pushrods

There are twin elevators, so 2 pushrods into one servo. Bound with copper wire and soldered

Made the wing fillets

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Test fit of the control surfaces

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Turtle Deck fitted