Sapac L39 test flight and build pictures - Page 5

lashmett75 · Mar 25, 2009, 10:25 AM

It is call transparency film. Used in overhead projectors. Clear, you can use a dry erase marker on it, erasable. Also if you happen to have your old X-rays or know someone in that field...the film works awesome for making thrust nozzles.

James

lashmett75 · Mar 25, 2009, 10:26 AM

[quote=MFALLON]check this out guys new sapac retracts

How are they rigged? Anyone???

mavdriver · Mar 25, 2009, 10:31 AM

Signing on , awsome build thread i have the K&A L39 , the Sapac looks bigger , might be getting this one .

Zman39 · Mar 25, 2009, 10:32 AM

Ah, that stuff! Thanks!

MFALLON · Mar 25, 2009, 06:11 PM

Quote:

Originally Posted by lashmett75

It is call transparency film. Used in overhead projectors. Clear, you can use a dry erase marker on it, erasable. Also if you happen to have your old X-rays or know someone in that field...the film works awesome for making thrust nozzles.

James

I am not sure if you know but old x-rays have some silver content in them worked in a nuke plant for awhile x-raying the welds and piping and we would sell the old developer for the silver content not sure if will bother the new 2.4 but I Think it will play hell with your 72

lashmett75 · Mar 25, 2009, 06:15 PM

Quote:

Originally Posted by MFALLON

I am not sure if you know but old x-rays have some silver content in them worked in a nuke plant for awhile x-raying the welds and piping and we would sell the old developer for the silver content not sure if will bother the new 2.4 but I Think it will play hell with your 72

Never thought about that. Nice catch. Im not using X-ray film, but I have heard others using it. I will have to talk to the guy that I got the idea from.

James

Zman39 · Mar 25, 2009, 06:29 PM

Sorry guys for a guess a stupid question:

For the nose retract (Sapac), I must be missing something (mentally

). How does the strut stay in but still turn?I noticed the screw has a staple looking thing on it and only goes in so far and doesnt lock the strut in so it can still turn, but what keeps the strut from falling out?

Thanks

Z

mavdriver · Mar 25, 2009, 06:39 PM

Quote:

Originally Posted by Zman39

Sorry guys for a guess a stupid question:

For the nose retract (Sapac), I must be missing something (mentally

). How does the strut stay in but still turn?I noticed the screw has a staple looking thing on it and only goes in so far and doesnt lock the strut in so it can still turn, but what keeps the strut from falling out?

Thanks

Z

i don`t know about this particular set , but normally there`s a wheel collar that keeps it from falling out . Ed

lashmett75 · Mar 25, 2009, 07:19 PM

Quote:

Originally Posted by Zman39

Sorry guys for a guess a stupid question:

For the nose retract (Sapac), I must be missing something (mentally

). How does the strut stay in but still turn?I noticed the screw has a staple looking thing on it and only goes in so far and doesnt lock the strut in so it can still turn, but what keeps the strut from falling out?

Thanks

Z

Good question. I dont even remember seeing that wire on the retract. I will have to look. Retract install is the last thing I need to do before ground testing, and maiden flight.... I will let you know what I find.

JAmes

Zman39 · Mar 25, 2009, 08:06 PM

I looked at it. A small wheel collar may work, not sure though. I will be in a holding pattern until hopefully Mike or Eddie chime in..

Z

carl rich · Mar 25, 2009, 08:55 PM

The steering arm has a small portion that juts out slightly. The retract portion has a groove that the steering arm just fits into. Slide rod through steering arm, steering arm onto retract trunion in proper position and slide strut up into trunion. Groove keeps steering arm to trunion, set screw in steering arm keeps strut to steering arm. Pretty ingenious. If that's how you spell ingenious.

NOW, there is a small black plastic piece with the canopy/cockpit. I believe this is to help hold the nose portion of cockpit to the fuse and that it mounts up front. Manual photo is difficult to see. Any good pictures out there?

Zman39 · Mar 25, 2009, 09:35 PM

Thanks for the retract explanation........got it.

Haven't got to the canopy yet, sorry......

coolboarder · Mar 25, 2009, 11:07 PM

canopy piece

Quote:

Originally Posted by carl rich

The steering arm has a small portion that juts out slightly. The retract portion has a groove that the steering arm just fits into. Slide rod through steering arm, steering arm onto retract trunion in proper position and slide strut up into trunion. Groove keeps steering arm to trunion, set screw in steering arm keeps strut to steering arm. Pretty ingenious. If that's how you spell ingenious.

NOW, there is a small black plastic piece with the canopy/cockpit. I believe this is to help hold the nose portion of cockpit to the fuse and that it mounts up front. Manual photo is difficult to see. Any good pictures out there?

coolboarder · Mar 25, 2009, 11:10 PM

My humble take on belly landing/bungee mods.

4oz cloth in the fuse (2oz would have been sufficient)

6 servo covers providing @45 degrees of flap on a flat surface.

Removable towhook/battery tray

Sapacbill · Mar 25, 2009, 11:45 PM

you can see a little better.

Well, the file is too big, 4MB over the limit to post. We will try to post on the website.

Sorry.

Mar 25, 2009, 11:10 PM	#74
coolboarder Plane on the Brain Join Date: Apr 2005 Posts: 651	My humble take on belly landing/bungee mods. 4oz cloth in the fuse (2oz would have been sufficient) 6 servo covers providing @45 degrees of flap on a flat surface. Removable towhook/battery tray Attached Thumbnails 41.2 KB · Views: 334 49.1 KB · Views: 380 33.1 KB · Views: 509

Mar 25, 2009, 11:45 PM	#75
Sapacbill Registered User Join Date: Oct 2008 Posts: 160	manul in color you can see a little better. Well, the file is too big, 4MB over the limit to post. We will try to post on the website. Sorry.

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Mar 25, 2009, 10:25 AM	#61
lashmett75 TEAM EJF Join Date: Jul 2008 Location: Chandler, AZ Posts: 1,633	It is call transparency film. Used in overhead projectors. Clear, you can use a dry erase marker on it, erasable. Also if you happen to have your old X-rays or know someone in that field...the film works awesome for making thrust nozzles. James

Mar 25, 2009, 10:26 AM	#62
lashmett75 TEAM EJF Join Date: Jul 2008 Location: Chandler, AZ Posts: 1,633	[quote=MFALLON]check this out guys new sapac retracts How are they rigged? Anyone???

Mar 25, 2009, 10:31 AM	#63
mavdriver Registered User Join Date: May 2002 Location: southern calif. Posts: 1,888	Signing on , awsome build thread i have the K&A L39 , the Sapac looks bigger , might be getting this one .

Mar 25, 2009, 10:32 AM	#64
Zman39 Registered User Join Date: Apr 2005 Posts: 52	Ah, that stuff! Thanks!

Mar 25, 2009, 06:29 PM	#67
Zman39 Registered User Join Date: Apr 2005 Posts: 52	Sorry guys for a guess a stupid question: For the nose retract (Sapac), I must be missing something (mentally ). How does the strut stay in but still turn?I noticed the screw has a staple looking thing on it and only goes in so far and doesnt lock the strut in so it can still turn, but what keeps the strut from falling out? Thanks Z

Mar 25, 2009, 08:06 PM	#70
Zman39 Registered User Join Date: Apr 2005 Posts: 52	I looked at it. A small wheel collar may work, not sure though. I will be in a holding pattern until hopefully Mike or Eddie chime in.. Z

Mar 25, 2009, 08:55 PM	#71
carl rich EDF Nut Join Date: Jan 2006 Location: Cincinnati Posts: 1,559	The steering arm has a small portion that juts out slightly. The retract portion has a groove that the steering arm just fits into. Slide rod through steering arm, steering arm onto retract trunion in proper position and slide strut up into trunion. Groove keeps steering arm to trunion, set screw in steering arm keeps strut to steering arm. Pretty ingenious. If that's how you spell ingenious. NOW, there is a small black plastic piece with the canopy/cockpit. I believe this is to help hold the nose portion of cockpit to the fuse and that it mounts up front. Manual photo is difficult to see. Any good pictures out there?

Mar 25, 2009, 09:35 PM	#72
Zman39 Registered User Join Date: Apr 2005 Posts: 52	Thanks for the retract explanation........got it. Haven't got to the canopy yet, sorry......