Astro Hog/ Os 70 FS

Astro Hog/ Os 70 FS

Post by Lynwood Mattes » Thu, 24 Sep 1998 04:00:00



 I'm building an Astro Hog, and noticed that it doesn't call for any
thrust angle offset, or any firewall down angle, as I have been used to
seeing in other planes that I've built. What is the reason for this? Is it
because it is considered an acrobatic plane?
  Also, is the ***really necessary on an OS 70 FS? Fellow club members
have said to ***it like I do my 2-strokes...by a finger over the
muffler outlet. I'm trying to get the engine further back against the
firewall, and removing the ***allows me to do this. Any reasons why I
should not?

  Lynn

p.s. The Hog is a single wing, not a bipe.

 
 
 

Astro Hog/ Os 70 FS

Post by Bruce Morna » Thu, 24 Sep 1998 04:00:00


Hi Lynn;
    I have the Hog Bipe. My fuselage did have both lateral and vertical
offset built into the firewall mount. I would have thought that the Hog
would be the same. I would trust the kit though as a friend of mine used
the same engine as you are using and as far as I know, he built it
according to plan and it flew great with lots of power. Happy Flying!

 
 
 

Astro Hog/ Os 70 FS

Post by Bruce Morna » Thu, 24 Sep 1998 04:00:00


Oh, I forgot your second question. I have three os four strokes of
various sizes and have never used the chokes. As a matter of fact, I
removed them. A tiny bit of throttle for start up does the trick.
 
 
 

Astro Hog/ Os 70 FS

Post by Jim Dola » Thu, 24 Sep 1998 04:00:00



Quote:

>S

>Date: 23 Sep 1998 19:42:49 GMT
>> I'm building an Astro Hog, and noticed that it doesn't call for any
>thrust angle offset, or any firewall down angle, as I have been used to
>seeing in other planes that I've built. What is the reason for this? Is it
>because it is considered an acrobatic plane?

As I remember the plans for the Astro Hog,the wing and stabilizer
are set up at a positive incidence this would give you the same
effect as putting down thrust in engine.I would put a small
amount of right thrust in engine.
                                     J.D.
 
 
 

Astro Hog/ Os 70 FS

Post by Bill Calkin » Thu, 24 Sep 1998 04:00:00


I've built both.  They are completely different planes.  I understand the
only two things common between them are the headrest and the name.

--
=============================================================
Bill Calkins
Interested in C/L? Check out my page:  http://pwp.starnetinc.com/clflyer
=============================================================

Quote:

>Hi Lynn;
>    I have the Hog Bipe. My fuselage did have both lateral and vertical
>offset built into the firewall mount. I would have thought that the Hog
>would be the same. I would trust the kit though as a friend of mine used
>the same engine as you are using and as far as I know, he built it
>according to plan and it flew great with lots of power. Happy Flying!

 
 
 

Astro Hog/ Os 70 FS

Post by Richar » Thu, 24 Sep 1998 04:00:00


Quote:

>  I'm building an Astro Hog, and noticed that it doesn't call for any
> thrust angle offset, or any firewall down angle, as I have been used to
> seeing in other planes that I've built. What is the reason for this? Is it
> because it is considered an acrobatic plane?
>   Also, is the ***really necessary on an OS 70 FS? Fellow club members
> have said to ***it like I do my 2-strokes...by a finger over the
> muffler outlet. I'm trying to get the engine further back against the
> firewall, and removing the ***allows me to do this. Any reasons why I
> should not?

>   Lynn

> p.s. The Hog is a single wing, not a bipe.

 Lynn,
I have the Same setup. The .70 is a perfect match. I don't use a ***either.
Just spin the engine over a couple of turns with the finger on the muffler.
Get it wet. Then it easily starts by hand. You're gonna like that plane...:)

--
Until those bottom feeding SPAMMERS are eradicated from the planet, you'll
have to remove the ** from my address to reply.
Thanks,
Richard

 
 
 

Astro Hog/ Os 70 FS

Post by Dno19 » Fri, 25 Sep 1998 04:00:00


Quote:
> I'm building an Astro Hog, and noticed that it doesn't call for any
>thrust angle offset, or any firewall down angle, as I have been used to

Many Sig kits do not use angled thrust, and they seem to fly fine.  >  Also, is
the ***really necessary on an OS 70 FS?

The finger over the exhaust method will work fine.

 
 
 

Astro Hog/ Os 70 FS

Post by Lynwood Mattes » Sat, 26 Sep 1998 04:00:00


 Many thanks to all who responded. The ***is gone, the engine is
snuggling up near the firewall, I've flip-flopped the carb, then put it
back again with the throttle arm on the left (looking for the best
throttle cable arrangement), and the work progresses...thanks again.

  Lynn