on saleDiplomat Aero Fountain Pen - Orange (Custom Nib Grind)

Product Code DP-D40302025G

In Stock

out of stock

on saleDiplomat Aero Fountain Pen - Orange (Custom Nib Grind)

Product Code DP-D40302025G

In Stock

out of stock

$220.00

MSRP $265.00

Color:
Orange

Not sure which size nib is best for you?

Try our Nib Nook tool to view and compare nib widths using our writing samples. Learn more ›

This orange Diplomat Aero fountain pen features a Zeppelin-inspired anodized aluminum body with groove-like depressions on the barrel and cap. It has a satisfying soft sliding click cap that posts securely onto the barrel when writing. It features a smooth writing #6 JoWo stainless steel nib, a dark grey grip and trim, and fills via standard international cartridge/converter (both are included).

This pen features a custom nib grind by Gena Salorino of Custom Nib Studio, into a medium cursive italic. It’s slightly more crisp than your typical stub, for a more distinct line variation. But the corners of the tip are ground smooth so it feels nice on the page.

Click here to shop all compatible short standard international ink cartridges.

Note: The converter you receive may vary from what is pictured here.

As these nibs have been modified, please contact us directly for any warranty issues.

Condition
New
Brand
Diplomat
Type
Fountain Pens
Color
Orange
Demonstrator

Whether or not the barrel of the pen is translucent, allowing you to see the ink and filling mechanism inside.

No
Body Material
Aluminum
Cap Type

How the cap is opened/closed from the barrel of the pen. Some common options include Snap-Cap, Screw-Cap, Magnetic Cap, or Capless (no cap).

Snap-cap
Compatible inks & refills

Which ink this pen will accept. Choices include bottled ink and various styles of pre-filled ink cartridges.

Bottled ink, Standard international short ink cartridges
Filling Mechanism

How the pen fills with ink. Click here to watch our video tutorial on common filling mechanisms.

Cartridge, Converter
Grip Material
Metal
Nib Size
Medium Cursive Italic
Nib Color
Silver
Nib Material
Steel
Postable

Whether or not the cap fits securely onto the back of the barrel when open.

Yes
Retractable

Whether or not the nib/tip can retract into the body of the pen (usually for click or twist-open style pens).

No
Diameter - Body
14.8mm (0.58in)
Diameter - Cap (without clip)
14.8mm (0.58in)
Diameter - Cap (with clip)
17.6mm (0.69in)
Diameter - Grip (mm)

Measured from the place most people choose to rest their fingers, which varies with each pen.

10.0mm
Length - Body

The measurement from the back end of the barrel to the tip of the nib.

128mm (5.04in)
Length - Cap
64.1mm (2.52in)
Length - Nib

The measured length of the visible portion of the nib when it is installed in the pen, from grip to tip.

22.2mm (0.87in)
Length - Overall (Closed)
139.6mm (5.50in)
Length - Overall (Posted)

When the cap of the pen is posted onto the back of the pen body, this is the measurement of the entire pen including the nib.

159.1mm (6.26in)
Weight - Body

If a converter is included with the pen, this weight is reflected in the total.

30g (1.06oz)
Weight - Cap
11g (0.39oz)
Weight - Overall (g)
41.0g
Max Ink Capacity - Cartridge

The maximum volume of ink that can fit in the pen when using a cartridge.

1.03ml
Max Ink Capacity - Converter

The maximum volume of ink that can fit in the pen when using a converter.

1.12ml

Customer Reviews

Based on 12 reviews
92%
(11)
8%
(1)
0%
(0)
0%
(0)
0%
(0)
G
Gail M.C.
Medium Cursive Italic

This is my new favorite nib. More rounded than a stub and makes for beautiful line variation. Sadly I think I bought the last one unless Goulet decides to order more custom nib grinds from Gina Sailorino.

A
Anonymous
Crisp Writer

This has been a surprising pen in many ways. I had been considering an Esterbrook with the Journal nib but called customer care to see what other options there were for custom nib grinds and this pen came up in the conversation. Based on the stats I wasn't sure I would like it. I'm generally not a fan of metal sections and it seemed like it would be heavier than I prefer. But the writing samples in the photos and in the nib nook won me over and I'm glad they did. The coating on the section softens and warms it to the touch and adds just enough texture so that it does not slip in the hand. I can be acutely aware of any sharp edges on a pen including threads and this long-ish section with no threads is one of my most comfortable pens. But the same sensitivity makes posting the pen a less appealing option as the edge of the cap sits in an uncomfortable place in my hand. I think if not for this I would prefer it posted to add just a bit of length but posted or unposted it has a nice balance to it and feels lighter than the stats would have suggested. I love the crispness of the line that the nib puts down and I feel that it helps make my writing more clear. It did take me some time to get used to the cursive italic as it is a little more finicky to writing angle, but well worth the effort. Also I prefer pens on the wetter end of things and this was on the dry side with the first ink I tried (Sailor Christmas Tea). I very gently worked on the nib to create more flow but didn't want to take it any further. Changing to Diamine Forest Green was a good choice for me and I feel the flow is good now. On a final note, I like bouncy nibs and this doesn't fit that bill but I still really enjoy writing with this pen and I'm eager to explore more custom nib options. Many thanks to Brian K. in customer care for helping me with this purchase.

K
Kirsten G.
I was a skeptic, but now I'm a believer!

Diplomat Aerowho? What? It is a heavy pen by most standards, but I ordered the pen because it had Gena Salorino's Custom Grind (medium Cursive Italic). The pen is well balanced and comfortable to use, even on longer writing sessions. I do not post so I can not comment on that. Now for the best partthe nib. The custom grind from Gena Solorino is amazing. It's butter smooth and a true pleasure to use. The Aero has perfect ink flow to make this lefies writing experience a dream! I wish more pen manufacturers worked with Nibmeisers to make custom grinds more readily available. Thank you Goulet Pen's for offering exclusive grinds from two of the best Nibmeisters out there!!

A
Anonymous
Great pen

Incredible solid well balanced pen with a very smooth special grind nib.

K
Kira
Best Nib Ever.

I received this pen as a gift. I like wet pens, but not too bold nibs. Stubs once in awhile. I like springy. I like line variation. I write a LOT, so I prefer pens that are a little larger in the grip, they are easier on my hands. This pen and nib combo is perfection. So well made. So well balanced. The nib is ground so well. It's like ice skating across the paper. For comparision, prior to using this pen, my favorites were Pilot E95 S M, Pilot VP F, TWSBI Vac 700R F. Still love those pens, but I'm reaching for this one first.

Frequently Asked Questions

How do I use this pen with ink cartridges? 8EDA1617-F73A-4DAF-8245-6D2BF4ABEB7B

A cartridge is small, disposable, sealed plastic reservoir that holds fountain pen ink. These come pre-filled with ink, and typically you just push to insert them into place and you'll be ready to write!

This pen uses standard international ink cartridges, a common size which is available in many colors from various brands.

You can learn more about how to actually install an ink cartridge on our blog, or in this video tutorial:

How do I use a converter? 8EDA1617-F73A-4DAF-8245-6D2BF4ABEB7B

A converter goes in the place of where the ink cartridge would normally go. From there, you can fill your fountain pen from bottled ink.

A converter is a detachable and refillable ink reservoir that allows you to use bottled ink in a cartridge-accepting pen. Typically you will install the converter into the grip section, dip the nib/feed into the ink, and twist or pull the converter knob to draw ink into the converter.

We have a great video showing how to use a converter here:

How do I clean this fountain pen? 8EDA1617-F73A-4DAF-8245-6D2BF4ABEB7B

It mostly comes down to flushing out the pen with water, and sometimes a little bit of pen flush if the ink is really stuck. 

We put together a blog post with step-by-step instructions, or you can watch the video here:

We recommend a good cleaning every 2 weeks, and any time you change ink colors. Water will usually do the trick, but we recommend you use our Goulet Pen Flush if the ink has been left in the pen for a while and could have dried up, or when you’re switching ink colors.

For even more information about fountain pen cleaning, check out our Fountain Pen 101 video blog post.

What's your return policy? 8EDA1617-F73A-4DAF-8245-6D2BF4ABEB7B

We accept returns for up to 30 days from purchase. You can read all our Return Policies here.

To initiate a return, please submit a request at the Return Portal. Our Customer Care team might reach out to you for more information.