Difference --- Decathlon, Super Decathlon
~me~
Aside from the engine, are there any differences between the Decathlon and
Super Decathlon? Can either of them use Mogas?
TIA
Wayne
Robert Little
or may not. The 180 hp doesn't have a mogas STC available from either
Peterson or EAA, that I'm aware of. The higher compression AEIO-360
increases the chances of preignition. RTL
"~me~" <n...@t.com> wrote in message news:b1hj4...@enews4.newsguy.com...
Kent OK
cowlings wheel pants and so. Later have stock aileron spades.
Different paint schemes.
Best change was when American Champion went to metal spars.
I'm not afraid of wood spar per se, just Bellanca's design is lacking.
Torsion of the wing leads to rib nails failing out, and the Svc Bltn epoxy
fix is only a bandaid.
I don't think they are eligible for mogas.
Kent Ok
"~me~" <n...@t.com> wrote in message news:b1hj4...@enews4.newsguy.com...
Ida Covey
8.5:1.
BJC
"Robert Little" <razo...@tcac.net> wrote in message
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~me~
Thank you for your replies, even though I posted to the wrong group, I
meant to post to the aerobatic group but somehow sent it to this one.
Thanks
Wayne
"~me~" <n...@t.com> wrote in message news:b1hj4...@enews4.newsguy.com...
Ida Covey
Right you are.
I had the AEIO-320-E's, specs (150 HP, 7.0:1 CR, 80 octane fuel) confused
with the AEIO-320-D's (160 HP, 8.5:1 CR, 100/100LL fuel.) The 150 HP
Decathlon uses the -E.
BJC
"Richard Riley" <Ric...@mylastname.net> wrote in message
news:7tfq3v0425bt8ao10...@4ax.com...
> On Sun, 02 Feb 2003 15:01:16 GMT, "Ida Covey" <ICO...@nc.rr.com>
> wrote:
>
> :The 180 HP AEIO - 360 and the 150 HP -320 have the same compression
ratio:
> :8.5:1.
>
> The 160 hp 320 (and the 180 hp 360) have 8.5:1, and the 150 hp 320 has
> 7:1. The 170 hp 320H2AD is 9:1. There are mogas stc's for 150, 160
> and 180 hp lyc's, but I don't know of one for the 170. I also don't
> know of one for the Decathelon or Super Decathelon, or for the AEIO
> (aerobatic, injected) engines. Once you get into inverted fuel
> systems you have a whole lot of vapor lock testing to do.
Ida Covey
Which group provided more useful info?
BJ "gave up on rec.aviation.aerobatics a long time ago" C
"~me~" <n...@t.com> wrote in message news:b1k2b...@enews3.newsguy.com...
AL Mills
"Richard Riley" wrote:
> It's a stressful time. I'm amazed I can remember where the "enter"
> key is.
Just try finding the ANY key!
AL
Rick Macklem
> Aside from the engine, are there any differences between the Decathlon and
> Super Decathlon? Can either of them use Mogas?
It is my understanding that the Decathlon fuel system failed the vapour
lock testing and, as such, there is no mogas STC. (The 150hp is a low
compression engine, but the airframe fuel system doesn't qualify.)
The only other difference I know of other than engine is that the
Super-D has a higher Vne (200 vs 180mph) and a more restricted rear
CofG limit. (You can get the TCDS off www.faa.gov and read all the
nitty gritty.)
You can check with Petersen Aero's web site w.r.t. mogas STC, rick
~me~
I had only 2 replies in the aerobatic group, but they were informative.
This one from Rich stowell:
There are three models of the 8KCAB, the only difference being the
engine/prop combinations:
Standard Decathlon -- 150 hp, fixed pitch prop
Decathlon CS -- 150 hp, constant speed prop
Super Decathlon -- 180 hp, constant speed prop
Gross weight remains the same for the three models; therefore, useful
loads decreases as you move from the Standard up to the Super
Decathlon, adding weight in the constant speed prop and hardware, then
the bigger engine.
I'm not aware that the 8KCAB series is approved for Mogas...
Rich
http://www.richstowell.
and this one from Andrew Boyd, although I thought only Citabrias had the
wood spars.
When looking at Decathlon variants, there is also the wood
spar vs metal spar wing issue:
AB
Wayne
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