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Timís Grumpy Tigercub

Build log- Electric and a smidge bigger...

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Tim Ballinger16/11/2017 18:45:36
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545 forum posts
229 photos

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Always wanted to build a mosquito but not quite brave enough yet so when someone pointed me at Peters Grumpy Tigercub I could not resist.

It will be electric and the resulting empty nacelle space was too tempting. It’s going to have retracts, 2 3/4 inch wheels to cope with my grass strip and have flaps as well. Finally settled on 60 inch span and scaled up the pdf of the original Peter had sent me.

Spent some time drawing out new nacelles as these were key and ended up with a set of drawings to try an experimental build with.....

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Tim Ballinger16/11/2017 22:06:26
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545 forum posts
229 photos

56c328e6-3193-488a-9c9f-967d12ecff21.jpeg927a2416-c5b4-48a0-b329-a68d4a6d788d.jpegAnd this is how they turned out. Quite pleased so far.

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Tim Ballinger16/11/2017 22:07:48
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545 forum posts
229 photos

They even work253236e9-a468-4901-9047-eac326321cb8.jpeg

Tim Ballinger16/11/2017 22:10:40
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545 forum posts
229 photos

Almost real time now having posted all the pics I had stored up !

Attention now on the fuse which is as designed apart from an additional extra 5cm on the nose to make sure I can get the cg right and as a bonus allow lots of room for the battery and esc’s.

Tim Ballinger16/11/2017 22:12:44
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545 forum posts
229 photos

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i12fly16/11/2017 22:39:24
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549 forum posts
21 photos

I watch with great interest. I've started similar, with flaps, no retracts though, same size as Peter's plan but with lengthened '3N' type nose. My plan was to fit the ESC's above the wing to avoid lengthening the leads to the battery but it all seems a bit too tight. I see you are putting them in the fus -which is fine for space but what sort of connectors are you using to join to the wing to avoid lots of separate plugs. I haven't found a good solution (yet).

I do admire those retracts though!

john stones 116/11/2017 22:41:08
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10586 forum posts
1480 photos

Just about to say the same, legs look good, where they from ?

Tim Ballinger17/11/2017 08:42:59
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545 forum posts
229 photos

The legs are from HK John. Spent more time on the net deliberating on what to get than I ever did fitting them ! They didn’t cost the earth so when I bend them ,as I surely will, I will not feel too bad . Hopefully the rake and the big spring will help. Did have to wait for them to come from the Hong Kong warehouse though. The retract itself is also stand HK but availible from UK warehouse.

I am following best practice and keeping the esc’s as close to the battery as poss. That’s why they are all in the nose.

I found a moulded socket that holds three bullets, so one plug for each side where the wires exit the wing. That’s my current plan.

I’ll add a picture later in case you have not spotted them before.

Tim

Peter Miller17/11/2017 08:58:20
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10170 forum posts
1192 photos
10 articles

I LIKE IT.yesyes

I like those under carriage legs too.

Darn it. Back in the early 70s I had a three view of a light plan that used three similar legs. I even started making them on night shift. Can't remember what the plane was now. I must go through my old catalogues

Tim Ballinger17/11/2017 11:03:13
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545 forum posts
229 photos

Thanks Peter. I know it’s not a real Tigercat but I think it’s going eventually going to get USAF markings nonetheless.

Tim

Tim Ballinger17/11/2017 11:07:23
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545 forum posts
229 photos

i12fly,

Here’s a pic of the connectors I plan to use. HK again; just described as 35 mm 3wire bullet connectors for motor.

Just solder the bullets as normal then pull them back into the housings.

Tim

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Peter Miller17/11/2017 11:07:42
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10170 forum posts
1192 photos
10 articles

It will look good in military markings

i12fly17/11/2017 22:33:31
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549 forum posts
21 photos

Thanks Tim, just what I need. I've ordered some right away -took some finding. They're sku 9001-AB if anybody else is searchinng.

Steven Shaw17/11/2017 22:38:08
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317 forum posts
167 photos

I have started on this one also. I've only started cutting parts to make my "kit", but may put those aside and get the plans reprinted to 60 or 63 inches. I have been thinking of adding flaps, ailerons, and retractable mains and at the moment I on makinf a 3 piece wing. At the current scale the Centre section would be 20 inches wide, ending just outside the nacelles. It may be time for me to rethinks things over though so I'll be following your log with interest.

Tim Ballinger18/11/2017 08:57:41
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545 forum posts
229 photos

3 piece wing - few challenges there I think. Though With hinges it would be even closer to the Tigercat inspiration devil.

Tim

Peter Miller18/11/2017 09:03:34
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10170 forum posts
1192 photos
10 articles

I have excellent scale drawings of the Tigercat, Nye or Wylam, can't remember which but they are equally detailed.

A little cosmetic work on the turtledeck would make it even closer to the real thing.

Tim Ballinger18/11/2017 09:22:21
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545 forum posts
229 photos

Funny you should say that Peter. I keep changing my mind whether to stick with the bubble canopy you chose or having decided on a military theme, do as you intimate withe the turtle decking and obtain/make a more Grunman type of cockpit. I expect i will change my mind a few times more yet.

Tim

 

Edited By Tim Ballinger on 18/11/2017 09:23:20

Peter Miller18/11/2017 10:01:09
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10170 forum posts
1192 photos
10 articles

Just let me know and I can scan the drawings and email them to you.

I do wish that I had done that myself. Don't know why I didn't

Tim Ballinger18/11/2017 10:08:57
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545 forum posts
229 photos

Peter,

Many thanks I have sent you an email.

Tim

Tim Ballinger18/11/2017 13:00:59
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545 forum posts
229 photos

Wow those are detailed drawings. Hats off to all the dedicated scale builders out there who replicate all that detail.

So far I’ve only gone to the trouble of getting 3 bladed props. Must try not to get carried away!

Many thanks for the pdfs Peter.

Tim

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