Percival Gull VI (oz1208)

 

Percival Gull VI (oz1208) by Lloyd Willis 2006 - plan thumbnail

About this Plan

Percival Gull VI. Flying scale rubber model. The subject model is Jean Batten's aircraft 'Jean' in which she set 2 World Records back in the 1930s.

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Percival Gull VI (oz1208) by Lloyd Willis 2006 - model pic

Datafile:

ScaleType:
  • Percival_Gull | help
    see Wikipedia | search Outerzone


    ScaleType: This (oz1208) is a scale plan. Where possible we link scale plans to Wikipedia, using a text string called ScaleType.

    If we got this right, you now have a couple of direct links (above) to 1. see the Wikipedia page, and 2. search Oz for more plans of this type. If we didn't, then see below.


    Notes:
    ScaleType is formed from the last part of the Wikipedia page address, which here is https://en.wikipedia.org/wiki/Percival_Gull
    Wikipedia page addresses may well change over time.
    For more obscure types, there currently will be no Wiki page found. We tag these cases as ScaleType = NotFound. These will change over time.
    Corrections? Use the correction form to tell us the new/better ScaleType link we should be using. Thanks.

Percival Gull VI (oz1208) by Lloyd Willis 2006 - pic 003.jpg
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Percival Gull VI (oz1208) by Lloyd Willis 2006 - pic 004.jpg
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Percival Gull VI (oz1208) by Lloyd Willis 2006 - pic 005.jpg
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Percival Gull VI (oz1208) by Lloyd Willis 2006 - pic 006.jpg
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User comments

The plan looks good and I can use it. BUT the notes on page 2 are unreadable. How can I get a good copy? Maybe just a copy of the notes themselves.
Bob T - 14/06/2013
Sorry, this is all I have. Good luck in your search
SteveWMD - 16/07/2013
Hi Steve, I've been admiring the plans of the Percival Gull on your site for a couple of years now and finally got around to building one [main pic, 003-006]. Unfortunately (for me) the plans are for a 20 inch span rubber free flight and I wanted around a 60 inch span for electric RC. So off to Office Works where I got the plans scaled up to almost 300%. The actual wingspan came out at 55 inches but that's close enough. I did increase the span of the tail plane by one extra bay on each side (approx. 30%) for better stability. Anyway, here are some photos of the finished plane which I haven't flown yet. Hence, it still looks pretty good. It's set up with a 650 KV motor from an FMS Zero, swinging a 12 x 8 prop, powered by a 4 cell Lipo. The battery hatch is designed for a 2650 - 2700 pack. The CG seems perfect with no added ballast required but the maiden will tell the truth. It's a total balsa and ply build with even the wheel pants being built up from balsa. All up weight, less battery, is 1.292 kg or 2 lb 13.5 oz which seems pretty good. Cheers
for now, and thanks again for a great site.
SteveC - 25/09/2020
Hi Steve and Mary. Here's a follow up to my previous posting for the Percival Gull VI... Second test flight successful after mishaps with maiden. So, first off the CG is at the main spar which coincides with the thickest airfoil section, although you can go backwards or forwards about 10mm and still be safe. With the set up described in the commentary above the aircraft will show a good turn of speed but can still be slowed down and flown on about 1/3 - 1/2 throttle. Stalls are predictable and large graceful loops are easy from level flight. The roll rate is decent but the plane seems to want to 'hang up' when inverted and requires some rudder to help complete the roll if you're in a hurry. It will spin but gets into it quicker if you initiate a snap roll and keep holding up elevator and full rudder. Recovery is excellent. Landings are a bit deceptive as it keeps wanting to float when a foot or so above the ground and it seems a bit pitch sensitive at landing speed. However, I'm still coming to terms with it, having only flown it a few times so far. It does seem to go where you point it instead of self recovering so I'm wondering if I built in a bit too much wash out at the wing tips to avoid tip stall. All in all though it looks really impressive in the air and not something you see every day.
Steve C. - 11/12/2020
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Notes

* Credit field

The Credit field in the Outerzone database is designed to recognise and credit the hard work done in scanning and digitally cleaning these vintage and old timer model aircraft plans to get them into a usable format. Currently, it is also used to credit people simply for uploading the plan to a forum on the internet. Which is not quite the same thing. This will change soon. Probably.

Scaling

This model plan (like all plans on Outerzone) is supposedly scaled correctly and supposedly will print out nicely at the right size. But that doesn't always happen. If you are about to start building a model plane using this free plan, you are strongly advised to check the scaling very, very carefully before cutting any balsa wood.

 

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